Datasheet SAA7392HL-M2, SAA7392HL-M3, SAA7392HL-M3A Datasheet (Philips)

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Page 1

DATA SH EET

Preliminary speciﬁcation File under Integrated Circuits, IC01

2000 Mar 21

INTEGRATED CIRCUITS

SAA7392

Channel encoder/decoder CDR60

Page 2

2000 Mar 21 2

Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

CONTENTS

1 FEATURES 2 GENERAL DESCRIPTION 3 QUICK REFERENCE DATA 4 ORDERING INFORMATION 5 BLOCK DIAGRAM 6 PINNING INFORMATION

6.1 Pinning

6.2 Pin description 7 FUNCTIONAL DESCRIPTION

7.1 Microprocessor interfaces

7.2 Register map

7.3 System clocks

7.4 HF analog front-end

7.5 Bit recovery

7.6 Decoder function

7.7 Subcode interface

7.8 Digital output

7.9 Serial output interface

7.10 Motor control

7.11 The serial in function

7.12 The subcode insert function

7.13 The data encoder block

7.14 Encode control block

7.15 The EFM modulator

7.16 The EFM clock generator

7.17 The Wobble processor 8 LIMITING VALUES

9 OPERATING CHARACTERISTICS

9.1 ADC and AGC parameters 10 APPLICATION INFORMATION

10.1 Write startcontrol of encoder in CD-ROM mode

10.2 Write start control of encoder in Audio mode

10.3 Start-up of encode in flow-control operation

10.4 Start-up of encoder in synchronous stream mode

10.5 Operating CDR60 in CAV mode, flow control on input stream

10.6 Operating in CLV Mode, Flow Control on Input Stream

10.7 Operating in CLV Mode, Synchronous Stream Operation

11 PACKAGE OUTLINE 12 SOLDERING

12.1 Introduction to soldering surface mount packages

12.2 Reflow soldering

12.3 Wave soldering

12.4 Manual soldering

12.5 Suitability of surface mount IC packages for wave and reflow soldering methods

13 DEFINITIONS 14 LIFE SUPPORT APPLICATIONS 15 PURCHASE OF PHILIPS I2C COMPONENTS

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

1 FEATURES

• Very high speed Compact Disc (CD) compatible decoding and encoding device

• On-chip Analog-to-Digital Converter (ADC) and Automatic Gain Control (AGC) for HF data capture

• Eight-to-Fourteen Modulation (EFM)

• Advanced motor control loop to allow CAV, CLV and

pseudo-CLV playback

• Integrated FIFO for de-coupling of mechanism speed and application speed

• Versatile output interface allowing different I2S-bus and Electronic Industries Association of Japan (EIAJ) formats

• Device is fully compatible with ELM, PLUM and Sanyo CD-ROM block decoders

• Quad-pass CIRC correction for CD mode (C1-C2-C1-C2)

• Subcode/header processing for CD format

• Frequency multiplier allows use of a 8 MHz crystal.

2 GENERAL DESCRIPTION

CDR60 is a channel encoder/decoder for CD/CD-R/CD-RW/CD Audio Recorder systems. It incorporates all logic and RAM required for the complete encoding and decoding processes.

There aretwo main datapathsthrough the CDR60 device. The decode datapath captures the incoming EFM data stream via the HF ADC and AGC functions.

The bit detector recovers the individual bits from the incoming signal, correcting asymmetry, performing noise filtering and equalisation, and recovering the channel bit clock using a digital PLL. The demodulator converts the EFM bits to byte-wide data symbols, before passing them onto the decoder for subcode extraction, de-interleaving and error correction. The decoded data is then made available via the multi-function serial output interface.

The encode datapath takes data symbols from the block encoder/decoder via the serial data and subcode input functions, encoding them via the encoder block. The encoded data stream is passed to the EFM modulator, which generates the required EFM signal, output as a digital bitstream. Theencode process iscontrolled viathe Wobble processor, encode control and EFM clock generator functions.

As well as these two data processing sections, three further blocks support overall device operation. The system clockgenerator provides all digitalclocks required by the CDR60. The motor servo allows the CDR60 to control the spindle motor and is controlled by the microprocessor interface. This interface can be accessed either via a parallel (80C51) or a serial (I2C-bus) interface.

3 QUICK REFERENCE DATA

4 ORDERING INFORMATION

SYMBOL PARAMETER MIN. TYP. MAX. UNIT

DDD

supply voltage (core and pad ring) 3.0 3.3 3.6 V

DDA

supply voltage (analog) 3.0 3.3 3.6 V

DDE

supply voltage (output drivers) 3.0 3.3 3.6 V

supply current − 200 − mA

xtal

crystal frequency 8 8.4672 33 MHz

amb

operating ambient temperature 0 − 70 °C

stg

storage temperature −55 − +125 °C

TYPE

NUMBER

PACKAGE

NAME DESCRIPTION VERSION

SAA7392HL LQFP80 plastic low proﬁle quad ﬂat package; 80 leads; body 12 × 12 × 1.4 mm SOT315-1

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Channel encoder/decoder CDR60 SAA7392

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5 BLOCK DIAGRAM

book, full pagewidth

SAA7392

MGR791

SUB-CPU INTERFACE

SERIAL OUT

PCAin

FLAG

STOPCK

DATAO

EBUOUT

SYNC

BCLK

SERIAL IN

SUBCODE

INSERT

WCLK

DATAI

RCK

SFSY

SUB

INT

SDA

SCL

CSi

WRi

RDi

ALE

CFLG

35 to 42

DA7

DA0

ENCODE

CONTROL

PANIC

LASERON

EFM

MODULATOR

EFMDATA

IREF

GENERATOR

EFM CLOCK

GENERATOR

XEFM

WOBBLE

PROCESSOR

MOTOR/TACHO

INTERFACE

ERROR CORRECTOR

AND

MEMORY PROCESSOR

W441

ATIPSYC

WIN

WREFHI

WREFMID

WREFLO

RESET

PORE

TEST

CONTROL

TEST1

TEST2

SYSTEM CLOCK

GENERATOR

BIT DETECTOR DE-MODULATOR

XTLI

XTLO

MUXSWI

MEAS1

CL1

HF DATA

CAPTURE

AGCREF

HIN

HREFHI

HREFMID

HREFLO

IREF

VREF

OTD

4 5 15 16

30, 49, 53, 76 19, 31, 43, 48,

52, 62, 71, 75 20, 44, 63, 72

MOTO2/T3

MOTO1

SSA1

DDA1

DDA2

SSA2

SSD

DDD

DDE

Fig.1 Block diagram.

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Channel encoder/decoder CDR60 SAA7392

6 PINNING INFORMATION

6.1 Pinning

Fig.2 Pin configuration.

handbook, full pagewidth

SAA7392

MGR792

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19

WREFLO

WREFHI

WREFMID

SSA1

DDA1

WIN

VREF

IREF

n.c.

HREFHI

HREFLO

AGCREF

HIN

HREFMID

DDA2

SSA2

TEST1 TEST2

SSD

DDE

60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41

MEAS1

EFMDATA

XEFM

LASERON

DDDVSSD

MOTO1

MOTO2/T3

DDEVSSD

CFLG

SFSY

RCK

SUB

DATAI

DDEVSSD

BCLK

XTLI

XTLO

OTD

MUXSWI

W441

ATIPSYC

PANIC

PORE

CL1

DDD

SSD

SCL

SDA

INT

DA7

DA6

DA5

DA4

DA3

DA2

WCLK DATAO FLAG SYNC EBUOUT V4 STOPCK V

DDD

SSD

PCAin CSi V

DDD

SSD

ALE RDi WRi V

DDE

SSD

DA0 DA1

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Channel encoder/decoder CDR60 SAA7392

6.2 Pin description Table 1 LQFP80 package; note 1

SYMBOL PIN TYPE DESCRIPTION

WREFLO 1 O wobble ADC analog reference voltage WREFHI 2 O wobble ADC analog reference voltage WREFMID 3 O wobble ADC analog reference voltage V

SSA1

4 supply analog ground

DDA1

5 supply 3 V analog supply voltage 1; note 2 WIN 6 I wobble analog input VREF 7 O analog voltage reference IREF 8 O analog current reference n.c. 9 − not connected HREFHI 10 O HFADC analog reference voltage HREFLO 11 O HF ADC analog reference voltage AGCREF 12 I AGC analog reference voltage HIN 13 I HF analog data input HREFMID 14 O HFADC analog reference voltage V

DDA2

15 supply 3 V analog supply voltage 2; note 2

SSA2

16 supply analog ground TEST1 17 I test input 1 TEST2 18 I test input 2 V

SSD

19, 43, 62, 71 supply output driver ground

DDE

20 supply output driver 3 V supply voltage XTLI 21 I crystal oscillator input XTLO 22 O crystal oscillator output OTD 23 I off track detect input MUXSWI 24 I clock multiplier enable W441 25 O wobble 44.1 kHz clock output ATIPSYC 26 O ATIPSync output PANIC 27 I laser low power (LLP) PORE 28 I power-on reset CL1 29 O divided clock output V

DDD

30, 49, 53, 76 supply core and pad ring 3 V supply voltage; note 2

SSD

31, 48, 52, 75 supply core and pad ring ground SCL 32 I sub-CPU clock SDA 33 I/O bidirectional sub-CPU data INT 34 O sub-CPU interrupt DA7 35 I/O bidirectional sub-CPU parallel data bus DA6 36 I/O bidirectional sub-CPU parallel data bus DA5 37 I/O bidirectional sub-CPU parallel data bus DA4 38 I/O bidirectional sub-CPU parallel data bus

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Channel encoder/decoder CDR60 SAA7392

Notes

1. No signal may be applied to this device when it is not powered.

2. The analog and digital supply pins (V

DDA

and V

DDD

) must be connected to the same external supply.

DA3 39 I/O bidirectional sub-CPU parallel data bus DA2 40 I/O bidirectional sub-CPU parallel data bus DA1 41 I/O bidirectional sub-CPU parallel data bus DA0 42 I/O bidirectional sub-CPU parallel data bus V

DDE

44 supply output driver 3 V supply voltage WRi 45 I sub-CPU write enable; active LOW RDi 46 I sub-CPU read enable; active LOW ALE 47 I sub-CPU address latch enable CSi 50 I sub-CPU chip select PCAin 51 I PCA input STOPCK 54 O stop clock output V4 55 O serial subcode output EBUOUT 56 O digital output SYNC 57 O I

S sector sync output

FLAG 58 O I

S correction ﬂag

DATAO 59 O I

S data output

WCLK 60 I/O bidirectional I

S word clock

BCLK 61 I/O bidirectional I

S bit clock

DDE

63 supply output driver 3 V supply voltage DATAI 64 I I

S data input SUB 65 I EIAJ subcode data RCK 66 O EIAJ subcode clock SFSY 67 I EIAJ subcode sync CFLG 68 O correction statistics; open-drain T2 69 I tacho control input 2 T1 70 I tacho control input 1 V

DDE

72 supply output driver 3 V supply voltage MOTO2/T3 73 I/O motor output 2/tacho input 3 MOTO1 74 O motor control output 1 LASERON 77 O laser write control XEFM 78 O EFM clock output EFMDATA 79 O EFM data output MEAS1 80 O front end telemetry; open-drain

SYMBOL PIN TYPE DESCRIPTION

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Channel encoder/decoder CDR60 SAA7392

7 FUNCTIONAL DESCRIPTION

7.1 Microprocessor interfaces

The SAA7392 is programmed via two independent microprocessor interfaces:

• Serial I2C-bus – SDA=I2C-bus data – SCL = I2C-bus clock –I2C-bus write address = 3EH –I2C-bus read address = 3FH.

• Parallel 80C51 compatible – DA(7:0) = address/data bus – ALE = address latch enable; latches the address

information on the bus – WRi = active LOW write signal; write to SAA7392 – RDi = active LOW read signal; read from SAA7392 – CSi = chip select signal; gates the RDi and WRi

signals.

7.1.1 S

ERIAL I

C-BUS INTERFACE

Data is transferred over the interface in single bytes, via write data or read data commands.

The sequence for a write data command is as follows:

1. Send START condition

2. Send address 3EH (write)

3. Write register address byte

4. Write data byte

5. Send STOP condition. The sequence for a read data command is as follows:

1. Send START condition

2. Send address 3EH (write)

3. Write status register address byte

4. Send STOP condition

5. Send address 3FH (read)

6. Read data byte

7. Send STOP condition.

7.1.2 P

ARALLEL INTERFACE

The parallelinterface hasa multiplexed address/databus. Information can be written to or read from the SAA7392 using the protocols shown inFigs 3 and 4; specific timings are shownin Table 2. Notethat only thelower six address bits are decoded; so writing to address 40H would have the same effect as writing to address 00H.

handbook, full pagewidth

MGR793

ALE

WRi

CSi

DA0 to DA7

address (0:7)

data (0:7)

WRiL

su2

su1

Fig.3 Microprocessor write protocol.

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Channel encoder/decoder CDR60 SAA7392

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MGR794

ALE

RDi

CSi

DA0 to DA7

address (0:7)

data (0:7)

OUT

RDi

su1

Fig.4 Microprocessor read protocol.

Table 2 Parallel interface timing

Note

1. T

clk

is the system clock period.

SYMBOL DESCRIPTION MIN.

(1)

MAX.

(1)

UNIT

Delay ALE falling to RDi/WRi falling. 17 − ns

Delay CSi rising to RDi/WRi falling. 17 − ns

CSi hold time after RDi/WRi falling. 2T

clk

+17 − ns

su1

Address setup time before ALE falling. 17 − ns

Address hold time after ALE falling. 17 − ns

su2

Data setup time before WRi falling. 0 − ns

Data hold time after WRi falling. 2T

clk

+17 − ns

WRiL

WRi LOW time. 1T

clk

+17 − ns

ALE LOW hold time after WRi LOW. 3T

clk

+17 − ns

Delay data valid after RDi LOW. − 3T

clk

+17 ns

Delay RDi HIGH to data out high-impedance. − 17 ns

RDiL

RDi LOW time. 3T

clk

+ 128 − ns

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Channel encoder/decoder CDR60 SAA7392

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7.2 Register map Table 3 Register map

ADDRESS

(HEX)

BLOCK

RESPONSIBLE

00 PLL Lock Select Register (PLLLock) Write PLL lock select bit detector

Read 8-bit PLL frequency bit detector

01 PLL Bandwidth Select Register (PLLSet) Write PLL bandwidth select bit detector

Read 8-bit asymmetry signal bit detector

02 PLL Frequency Preset Register (PLLFreq) Write PLL frequency preset bit detector

Read 8-bit jitter signal bit detector

03 PLL Equalizer Preset Register (PLLEqu) Write PLL equalizer preset bit detector

Read Observe internal lock ﬂags bit detector 04 PLL Lock Aid2 Preset Register (PLLFMeas) Write PLL lock aid 2 preset bit detector 05 I2S Output Register 1 (Output1) Write I2S output 1 serial out 06 I

S Output Register 2 (Output2) Write I2S output 2 serial out

07 I

S Output Register 3 (Output3) Write I2S output 3 serial out

08 Semaphore Register 1 (Sema1) Write/Read Inter-microprocessor

communication

sub-CPU

09 Semaphore Register 2 (Sema2) Write/Read Inter-microprocessor

communication

sub-CPU

0A Semaphore Register 3 (Sema3) Write/Read Inter-microprocessor

communication

sub-CPU

0B Interrupt Enable Register (IntEn) Write Enable interrupts sub-CPU 0B Status Register (Status) Read Interrupt status sub-CPU 0C Motor Control Register1 (Motor1) Write Frequency set-point motor/tacho

Read 8-bit slicer compensation

value

bit detector

0D Motor Mode Select Register2 (Motor2) Write Motor coefﬁcient preset motor/tacho

Read Opening of eye pattern bit detector

0E Motor Control Register 3 (Motor3) Write Motor integrator preset motor/tacho

Read Read back of motor frequency motor/tacho

0F Motor Control Register 4 (Motor4) Write Motor control motor/tacho

10 Motor Control Register 5 (Motor5) Read/Write Motor integrator value motor/tacho 11 Motor Control Register 6 (Motor6) Read/Write Motor integrator value motor/tacho

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Channel encoder/decoder CDR60 SAA7392

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12 Clock Preset Register (ClockPre) Write Clock control clock generator

Read Status of Q-channel subcode encoder/decoder 13 Decoder Mode Select Register (DecoMode) Write Decoder mode select encoder/decoder

Read Q-channel subcode data encoder/decoder 14 Subcode Read End Register (SubReadEnd) Read Subcode data read ﬁnished encoder/decoder 15 Analog Settings Register 1 (AnaSet1) Write Analog control analog

Read C1 frames in FIFO + offset encoder/decoder 16 Viterbi Detector Settings Register (VitSet) Write Viterbi detector control bit detector 17 Tacho Gain Setting Register (Tacho1) Write Tacho gain setting motor/tacho 18 Tacho Trip Setting Register (Tacho2) Write Tacho trip setting motor/tacho 19 Tacho Control Register (Tacho3) Write Tacho control settings motor/tacho

1B Soft Reset Register (SoftReset) Write Sub-block reset sub-CPU 1D Motor Control Register7 (Motor7) Write Control coefﬁcients select motor/tacho 1E Input Conﬁguration Register (InputConﬁg) Write EBU clock frequency and

input format

serial input

20 Status Register 2 (Status2) Read/Write Interrupt status sub-CPU 21 Interrupt Enable Register 2 (IntEn2) Write Enable interrupts sub-CPU 22 Subcode Preset Count Register (SubPresetCount) Write Preset count ﬁeld subcode insert

Read Current count ﬁeld subcode insert 23 Subcode Conﬁguration Register 1 (SubConﬁg1) Write Subcode control subcode insert 24 Subcode Conﬁguration Register 2 (SubConﬁg2) Read/Write Subcode control subcode insert 25 Subcode Start Data Register (SubStartData) Write Subcode control subcode insert 26 Subcode Data Register (SubData) Read/Write Subcode data subcode insert 27 Wobble Conﬁguration Register1 (WobbleConﬁg1) Integrator and loop bandwidth Wobble processor

Window width ATIP syncs Wobble processor 28 Wobble Conﬁguration Register2 (WobbleConﬁg2) Write Wobble PLL control Wobble processor 29 ATIP Status Register (ATIPStatus) Read ATIP status Wobble processor

2A Wobble Frequency Register 1 (WobbleFreq1) Read/Write 8 MSBs of PLL frequency Wobble processor 2B Wobble Frequency Register 2 (WobbleFreq2) Read/Write 8 LSBs of PLL frequency Wobble processor 2C ATIP Data Register (ATIPData) Read ATIP data Wobble processor

ADDRESS

(HEX)

BLOCK

RESPONSIBLE

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Channel encoder/decoder CDR60 SAA7392

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2D ATIP Data End Register (ATIPDataEnd) Read Least signiﬁcant byte ATIP

data

Wobble processor

2E Wobble Peak Status Register (WobbleStatus) Read Peak value of wobble signal Wobble processor

30 Encode WriteOn Control Register (EncodeWContr) Read/Write Laser and data ﬂow control encode control 31 Encode Start Offset Register (EncodeStartOffset) Write Start WriteOn ﬂags delay encode control 32 Encode Stop Offset Register (EncodeStopOffset) Write Stop WriteOn ﬂags delay encode control 33 Encode Offset Register (EncodeXOffset) Write 10-bit value for Xoffset encode control 34 EFM Clock Conﬁguration Register 1 (EFMClockConf1) Write EFM clock control EFM clock generator 35 EFM Clock Conﬁguration Register 2 (EFMClockConf2) Write EFM clock control EFM clock generator 36 EFM Clock Conﬁguration Register 3 (EFMClockConf3) Write EFM clock control EFM clock generator

Read Integrator value EFM clock generator 37 EFM PLL Frequency Register (EFMPLLFreq) Read EFM PLL frequency EFM clock generator 37 EFM Clock Conﬁguration Register 4 (EFMClockConf4) Write EFM clock control EFM clock generator 38 ATIP Error Register (ATER) Read Counter for ATIP CRC errors sub-CPU 39 C1 Block Error Register (C1BLER) Read Counter for C1 errors sub-CPU

3A C2 Block Error Register (C2BLER) Read Counter for C2 errors sub-CPU 3C EFM Preset Count Register (EFMPresetCount) Write EFM frame position for output EFM modulator 3D EFM Modulator Conﬁguration Register (EFMModConﬁg) Write XEFM control and output data

format

EFM modulator

3E EFM Modulator Conﬁguration Register 2 (EFMModConﬁg2) Write XEFM control and output data

format

EFM modulator

ADDRESS

(HEX)

BLOCK

RESPONSIBLE

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Channel encoder/decoder CDR60 SAA7392

7.2.1 INTERRUPT PIN The interrupt pin (INT) is the AND-OR-INVERT of the Status and Interrupt Enable Registers, i.e. INT will become active

when corresponding bits are set at the same time in the Status and Interrupt Enable Registers.

7.2.2 THE SEMAPHORE REGISTERS (SEMA1, SEMA2 AND SEMA3) The Semaphore Registers are intended for inter-microprocessor communications. For example, microcontroller 1 can

writedata tomicrocontroller 2 viaSema1 andmicrocontroller 2 can writedata tomicrocontroller 1 viaSema2. TheStatus Register ofthe SAA7392offers a mechanismso that both microcontrollers cansee when newdata hasbeen written and whenit hasbeen readby lookingat thecontents ofthe Semaphore Registers. Version M3of theCDR60 canbe identified by writingand reading register Sema3. In version M3,bit 1 of Sema3is always read as logic 0, whereas inother CDR60 versions this bit reads the same value as what was written to it before.

7.2.2.1 Semaphore Register 1 (Sema1)

Table 4 Semaphore Register 1 (address 08H) - READ/WRITE

7.2.2.2 Semaphore Register 2 (Sema2)

Table 5 Semaphore Register 2 (address 09H) - READ/WRITE

7.2.2.3 Semaphore Register 3 (Sema3)

Table 6 Semaphore Register 3 (address 0AH) - READ/WRITE

7.2.3 S

TATUS REGISTER (STATUS)

Table 7 Status Register (address 0BH) - READ

Table 8 Description of Status bits

76543210

Sema1.7 Sema1.6 Sema1.5 Sema1.4 Sema1.3 Sema1.2 Sema1.1 Sema1.0

76543210

Sema2.7 Sema2.6 Sema2.5 Sema2.4 Sema2.3 Sema2.2 Sema2.1 Sema2.0

76543210

Sema3.7 Sema3.6 Sema3.5 Sema3.4 Sema3.3 Sema3.2 Sema3.1 Sema3.0

76543 210

Sema1 Sema2 Sema3 LockIn HeaderVal MotorOverﬂow FIFOOv −

BIT SYMBOL DESCRIPTION

7 Sema1 If Sema1 = 1, change in register Sema1 has been detected. Reset if register Sema1 read. 6 Sema2 If Sema2 = 1, change in register Sema2 has been detected. Reset if register Sema2 read. 5 Sema3 If Sema3 = 1, change in register Sema3 has been detected. Reset if register Sema3 read. 4 LockIn If LockIn = 1, then channel data PLL in lock (not latched). 3 HeaderVal HeaderVal is set when new header/subcode is available; reset on reading SubReadEnd. 2 MotorOverﬂow If MotorOverﬂow = 1, then a motor overﬂow is occurring (not latched). 1 FIFOOv If FIFOOv = 1, then the FIFO has overﬂowed. 0 − This bit is reserved.

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Channel encoder/decoder CDR60 SAA7392

7.2.4 INTERRUPT ENABLE REGISTER (INTEN)

Table 9 Interrupt Enable Register (address 0BH) - WRITE

Table 10 Description of IntEn bits

7.2.5 S

TATUS REGISTER 2(STATUS2)

Table 11 Status Register 2 (address 20H) - READ/WRITE

Table 12 Description of Status2 bits

76543 2 10

Sema1En Sema2En Sema3En LockInEn HeaderValen MotorOverﬂowEn FIFOOvEn −

BIT SYMBOL DESCRIPTION

7 Sema1En If Sema1En = 1, then Semaphore Register 1 interrupt is enabled. 6 Sema2En If Sema2En = 1, then Semaphore Register 2 interrupt is enabled. 5 Sema3En If Sema3En = 1, then Semaphore Register 3 interrupt is enabled. 4 LockInEn If LockinEn = 1, then channel data PLL in lock interrupt is enabled. 3 HeaderValEn If HeaderValEn = 1, then new header/subcode available interrupt is enabled. 2 MotorOverﬂowEn If MotorOverﬂowEn = 1, then motor overﬂow interrupt is enabled. 1 FIFOOvEn If FIFOOvEn = 1, then FIFO overﬂow interrupt is enabled. 0 − This bit is reserved.

76 543210

BankSwitch SyncError DataNotValid QSync ATIPSync LaserOn LaserOff XErrorLarge

BIT SYMBOL DESCRIPTION

7 BankSwitch When set a ‘Bank switch’in the subcode insert blockhas occurred; reset when a logic 1

is written to this bit.

6 SyncError When set synchronisation with PLUM on subcode transfer has failed; reset when a

logic 1 is written to this bit.

5 DataNotValid When set an under-run on subcode transfer with PLUM has occurred; reset when a

logic 1 is written to this bit.

4 QSync When set a Q-channel subcode sync has been written to disc; reset when a logic 1 is

written to this bit.

3 ATIPSync When set sync has been found in the ATIP channel; reset when a logic 1 is written to

this bit.

2 LaserOn When set a rising edge of the internal LaserOn signal has occurred; reset when a

logic 1 is written to this bit.

1 LaserOff When set a falling edge of the internal LaserOn signal has occurred; reset when a

logic 1 is written to this bit.

0 XErrorLarge When set the offset between QSync and ATIPSync is more than 2 EFM frames different

from the programmed value.

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Channel encoder/decoder CDR60 SAA7392

7.2.6 INTERRUPT ENABLE REGISTER 2(INTEN2)

Table 13 Interrupt Enable Register 2 (address 21H) - WRITE

Table 14 Description of IntEn2 bits

7.2.7 S

OFT RESET REGISTER (SOFTRESET)

Table 15 Soft Reset Register (address 1BH) - WRITE

Table 16 Description of SoftReset bits

76 543210

BankSwitchEnSyncErrorEn DataNotValidEnQSyncEn ATIPSyncEn LaserOnEn LaserOffEn XErrorLarge

BIT SYMBOL DESCRIPTION

7 BankSwitchEnIf BankSwitchEn = 1, then BankSwitch interrupt is enabled.

6 SyncErrorEn If SyncErrorEn = 1, then SyncError interrupt is enabled. 5 DataNotVali

dEn

If DataNotValidEn= 1, then DataNotValid interrupt is enabled.

4 QSyncEn If QSyncEn = 1, then QSync interrupt is enabled. 3 ATIPSyncEn If ATIPSyncEn = 1, then ATIPSync interrupt is enabled. 2 LaserOnEn If LaserOnEn = 1, then LaserOn interrupt is enabled. 1 LaserOffEn If LaserOffEn = 1, then LaserOff interrupt is enabled. 0 XErrorLargeEnIf XerrorLarge = 1, then XErrorLarge interrupt is enabled.

76543210

−−−−−−−SReset1

BIT SYMBOL DESCRIPTION

7to1 − These 7 bits are reserved.

0 SReset1 When set, synchronisation with PLUM on subcode transfer has failed; reset when

a logic 1 is written to this bit (Status2). This bit is an active HIGH reset to the following blocks: Encoder/decoder, EFM

modulator, Encode control block, Serial input/output block and Encode subcode insert block. The clock control, EFM PLL, tacho, motor interface and wobble interface remain running.

Soft reset will reset the following registers: EFMPresetCount, EFMModulateConﬁg, EFMModulateConﬁg2, EncodeXOffset, EncodeWriteControl, EncodeStartOffset, EncodeStopOffset, SubPresetCount, SubConﬁg1, Subconﬁg2,SubStartData, SubData, InputConﬁg, DecoMode, Output1, Output2 and Output3.

A soft reset is mandatory in the following cases:

1. After programming the BCLK clock

2. When switching from encode to decode

3. When switching from decode to encode.

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

7.3 System clocks

The principleclocks used inthe SAA7392 are derived from the crystaloscillator input pinXTLI (alternatively, anexternal clock can be connected to this pin). These clocks are the system clock (also used as the ADC clock) and the I2S output bit clock (BCLK).

The system clock (f

clk

) defines the maximumoperational channel rate for the device. The maximum EFM channel clock is twice the system clock, for CD it is equivalent tosystem clock/(4.3 × 106) which is approximately 11.5 × CDROM for a 25 MHz system clock.

The other clock in the system is the channel data clock, this is recovered by the front-end bit recovery PLL.

Fig.5 System clock generator.

handbook, full pagewidth

MGR795

MUXSWI

XTLI

XTLO

CL1

system clock

SYSTEM

CLOCK

DIVIDER

BCLK

XTLI

M × XTLI

BIT

CLOCK

DIVIDER

system clock

CL1

DIVIDER

CLOCK

(1)

MULTIPLIER

crystal

oscillator

(1) M = 1 if MUXSWI is LOW; M = 8 if MUXSWI is HIGH.

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

7.3.1 CLOCK PRESET REGISTER (CLOCKPRE)

Table 17 Clock Preset Register (address 12H) - WRITE

Table 18 Description of ClockPre bits

Table 19 Selection of system clock frequency

Table 20 Selection of BCLK frequency

76543210

CL1Div GateBClk Div.1 Div.0 Mux2 Div2.2 Div2.1 Div2.0

BIT SYMBOL DESCRIPTION

7 CL1Div If CL1Div = 0, then CL1 output frequency is

⁄3f

clk

. If CL1Div = 1, then CL1 output

frequency is1⁄2f

clk

6 GateBClk If GateBClk = 0, then I

S output bit clock gating is disabled. If GateBClk = 1, then I2S output bit clock gating enabled, BCLK is output, clock is automatically stopped if FIFO underﬂows (this is known as Flow control mode).

5 Div.1 These 2 bits select the system clock frequency (f

clk

); see Table 19. This frequency should be programmed for the expected disc channel rate (e.g. 4.33 MHz for 1 × CD) within the following constraints:

In this clock range, reliable bit detection is possible. All data found will be written to the FIFO. It is the responsibility of the user to select system clock values so that the FIFO performance is controlled.

4 Div.0

3 Mux2 If Mux2 = 0, then N (bit clock divider pre-scaler) = 1. If Mux2 = 1, then N = M.

2 to 0 Div2<2:0> These 3 bits select the BCLK frequency (f

BCLK

); see Table 20. It is the responsibility of

the user to select BCLK values so that the FIFO performance is controlled.

Div.1 Div.0 SYSTEM CLOCK FREQUENCY (f

clk

)

00M×f

XTLI

0 1 0.5 × M × f

XTLI

1 0 0.25 × M × f

XTLI

1 1 0.125 × M × f

XTLI

Div2.1 Div2.1 Div2.0 BCLK FREQUENCY (f

BCLK

)

000N×f

XTLI

001N×f

XTLI

010

(N × f

XTLI

)

011

(N × f

XTLI

)

100

(N × f

XTLI

)

101

(N × f

XTLI

)

110

(N × f

XTLI

)

111

(N × f

XTLI

)

Channel rate

----------------------------------

clk

4 Channel rate×<<

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

7.4 HF analog front-end

The HF ADC in the SAA7392 encodes the EFM high frequency signal from the disc light pen assembly. These signals are pre-processed, externally to the SAA7392, by either AEGER-2 or a DALAS equivalent. The dynamic range of the ADC is optimized by the inclusion of an AC coupled AGC function under digital control.

In order to make use of the whole digital front-end resolution, the output of the gain control amplifier should constantly deliver 1.4 V

(p-p)

output signal. The gain range ofthe ADC isapproximately14 dB, with32 steps. Thegain control for the variable gain amplifier is controlled by an on-chip digital gaincontrol block (AGC). This blockallows for both automatic and microprocessor gain control. The gain control block will detect ADC extreme conditions (00H or FFH outputs); on these values the gain control block will decrement the gain. If no extreme codes occur the gain is incremented.

7.4.1 FIXED GAIN Control of the gain is as follows:

1. Writing XX1X XXXX to the Anaset1 register

(address 15H) increases the AGC gain by 1.1 dB

2. Writing XX0X XXXX to the AnaSet1 register

(address 15H) decreases the AGC gain by 1.1 dB

3. Instructions to increment/decrement gain are ignored when the AGC gain limits of −4/+12 dB are reached.

7.4.2 AUTOMATIC GAIN CONTROL (AGC)

The gain of theAGC cellis adjusteduntil the analog signal at the ADC input extends over the complete range of the ADC.Detection ofthis conditionis in thedigital domain where the maximum and minimum ADC codes are measured. The dynamics of the AGC system are as follows.

1. If the ADC output codes are not full scale (i.e. 000 0000 and 111 11111) the AGC gain is incremented in 1.1 dB steps with a time constant of 1000/n µs, where n is the over-speed factor i.e. n = 1 for basic audio CD.

2. When full scale is detected at the output of the ADC the AGC gain is fixed provided that full scale is maintained and clipping does not occur for greater than 20% of the time.

3. If clipping occurs for more than 20% of the time, then the AGC gain is reduced in 1.1 dB steps with a time constant of 60/n µs.

The ADC and AGC electrical characteristics are specified in Chapter 9.

7.4.3 ANALOG SETTINGS REGISTER 1(ANASET1)

Table 21 Analog Settings Register 1 (address 15H) - WRITE

Table 22 Description of AnaSet1 bits

76543210

GainControl MaxGain StepUp StepDown PowerDown −−−

BIT SYMBOL DESCRIPTION

7 GainControl If GainControl = 0, then gain control is in Hold mode. If GainControl = 1, then automatic

gain control is on.

6 MaxGain If MaxGain = 0, then there is no gain limit. If MaxGain = 1, then the maximum gain is

7.66 dB. 5 StepUp If StepUp = 1, then step up gain by one LSB. 4 StepDown If StepDown = 1, then step down gain by one LSB. 3 PowerDown If PowerDown = 0, then analog blocks are powered up. If PowerDown = 1, then analog

blocks are powered down.

2to0 − These 3 bits are reserved and must be set to a logic 0s.

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

7.5 Bit recovery

The bit recovery block (shown in Fig.6) contains the slice levelcircuitry, anoise filtertolimit theHF-EFMsignal noise contribution, an adaptive slicer circuit and a digital PLL. These blocks can be controlled via the microprocessor.

The channel rate should always obey the following constraints:

• It should be less than 2 × the system clock

• It should be greater than 0.25 × the system clock.

In this clock range reliable bit clock detection is possible. All data found will be written to the FIFO. It is the responsibility ofthe user toselect BCLK and system clock values so that the FIFO operation is controlled.

The digital noise filter runs on the PLL bit clock and limits the bandwidthof the incomingsignal to 0.25 ofthe PLL bit clock frequency. The characteristics of the filter are:

• Passband: 0 to 0.22 f

• Stopband: 0.28 fb to (f

clk

− 0.28 fb)

• Rejection: −28 dB.

The slice level determination circuit compensates the incoming signalasymmetry component. Thebandwidth of this circuit is programmable via register PLLSet.

A programmable (one tap presetable, asymmetrical) equaliser is used in the bit detection circuit. The first and last tap settings are different. Possible tap values are settable via register PLLEqu.

The advanced detector has two extra detection circuits (adaptive slicer and run length 2 push-back) which are controlled via the VitSet register, that allow improved margin in the bit detector.

The adaptive slicer does a second stage slice operation; thebandwidth ishigherthan thefirst slicer. Itcan beturned on/off via the VitSet register.

If the advanced detector is switched on all run length 2 symbols are pushed back to run length 3. The circuit will determine thetransition that was most likely to bein error, and shift the transition on that edge.

Fig.6 Block diagram of bit recovery block.

handbook, full pagewidth

MGR796

−

GAIN CONTROLLED

AMPLIFIER

MEAS1

clocked on PLL clock

MULTIPLEXER

jitter value

PLL frequency

slice level

RMS JITTER

MEASUREMENT

VITERBI

DETECTOR

DIGITAL

EQUALIZER

NOISE

FILTER

ADC

ZERO TRANS

DETECTOR

SLICE LEVEL

DETERMINE

GAIN CONTROL

BLOCK

DIGITAL

PLL

HIN

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

7.5.1 DIGITAL PLL The digital PLL will recover the channel bit clock. As the

capturerange ofthe PLLitselfis limited,lockdetectors and 2 capture aids are present. In total three different PLL operation modes exist: In-lock, Inner-lock aid and Outer-lock aid.

The PLL behaviour during in-lock (the normal on-track situation) can be best explained in the frequency domain. The PLL operation is completely linear during in-lock situations. The open-loop response of the PLL is given in Fig.7. The three frequencies, f0(integrator cross-over frequency), f1(PLL bandwidth) and f2(low-pass bandwidth) are programmable via register PLLSet.

To extend the PLL capture range two lock aids are used:

• Inner lock aid: has a capture range of ±10% and will bring the PLL frequency to the lock point

• Outer lock range: has no limitation on capture range, and will bring the PLL within the range of the inner lock range.

Two outer lock aids can be used:

• Run length 3 deviation detector: this circuit is known to be sensitive to systematic over/under equalization; this over/under equalizationcan becounter-acted by writing a non-zero phase offset value to register PLLLock.

• Frequency measurement detector: this circuit regulates the PLL frequency so that the average number of EFM transitions is a fixed fraction of the PLL bit clock; the transition frequency is settable via register PLLFMeas.

Programmability/observability is built into the PLL. Its operation can be influenced in two ways:

• It is possible to select the state the PLL is in (in-lock, near-lock, outer-lock) via register PLLLock

• It is possible to preset the PLL frequency to a certain value via registers PLLEqu and PLLFreq.

The operation of the bit detector can be monitored by the microprocessor and via the MEAS1 pin. Four signals are available for measurement:

• PLL frequency signal: the most significant 8 bits are available via register PLLLock

• Asymmetry signal: the 8-bit signal in 2’s complement form is available via register PLLSet

• Jitter signal: the most significant 8 bits are available via register PLLFreq. This gives an impression of the detection jitter after all processing is done.

jitter<9:0> = average ((jitter individual transition)2× 8192)

To obtain the jitter in the bit clocks the jitter<9:0> value must be divided by 8192 and square routed. Note that the jitter<9:0> overestimates thejitter (byapproximately rms jitter increase of 0.03 bit clock), because the quantization of the zero transitions is in 4 intervals.

Note the jitter is measured before the bit detection and contains contributions due to various imperfections in the complete signal path; i.e. disc, preamplifier, ADC, limited bitwidths, PLL performance, internal filter noise, asymmetry compensation, equalizer.

• Internal lock flags: The internally generated inner-lock signal (f_lock_in), lock signal (lock_in) and flag that indicates when a run length 14 is detected (long_symbol) are available via register PLLEqu.

Fig.7 PLL bode diagram.

MGR797

handbook, halfpage

frequency (Hz)

amplitude

(dB)

0f1

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

7.5.2 MEAS1 PIN The MEAS1 pin carries the 3 measurement signals: jitter

(sampled twice), PLL frequency, and asymmetry. Each frame consists of 64 bits (each 4 system clock periods long), beginning with a start bit, then data bits then pause bits (see Fig.8). The start bit is always preceded by 17 pause bits; and the intermediate start bits at locations 12, 24 and 36 guarantee that no other ‘1’ bit is preceded by 17 ‘0’ bits, making the start detection easy. The structure of the frame is described in Table 23 and shown in Fig.8.

Table 23 Frame structure

BIT VALUE FUNCTION

0 logic 1 start bit 1 to 10 jitter<9:0> jitter word 11 logic 0 12 logic 1 intermediate start bit 13 to 22 pllfreq<9:0> PLL frequency word 23 logic 0 24 logic 1 intermediate start bit 25 to 32 assym<7:0> asymmetry word 33 logic 0 34 logic 1 intermediate start bit 37 to 46 jitter<9:0> second sample of jitter

word

47 to 63 logic 0 pause

Fig.8 Format on MEAS1 pin.

MGR798

handbook, halfpage

bit 0 bit 1 start

bit

pause data bits

bit 2 bit 3

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

7.5.3 PLL LOCK SELECT REGISTER (PLLLOCK) The behaviour of this register is dependent upon whether its being read or written. The behaviour for the write operation

is described in Tables 24 to 27. When read the 8 MSBs of the PLL frequency counter are returned; this is described in Tables 24 and 28.

Table 24 PLL Lock Select Register (address 00H) - WRITE/READ

Table 25 Description of PLLLock bits for write operation

Table 26 Selection of phase override setting

Table 27 Selection of PLL lock

76543210

LockOride PhaOset.2 PhaOset.1 PhaOset.0 PLLForceL.3 PLLForceL.2 PLLForceL.1 PLLForceL.0 PLLFreq.7 PLLFreq.6 PLLFreq.5 PLLFreq.4 PLLFreq.3 PLLFreq.2 PLLFreq.1 PLLFreq.0

BIT SYMBOL DESCRIPTION

7 LockOride When LockOride = 0, then automatic lock behaviourselected, PLLForceL<3:0>must be

set to ‘0000’. When LockOride = 1, then PLL manual override, PLLForceL<3:0> must

also be programmed. 6 PhaOset.2 These 3 bits are used to select the phase override settings; see Table 26. 5 PhaOset.1 4 PhaOset.0 3 PLLForceL.3 These 4 bits are used to select the PLL lock; see Table 27. 2 PLLForceL.2 1 PLLForceL.1 0 PLLForceL.0

PhaOset.2 PhaOset.1 PhaOset.0 PHASE OVERRIDE

0 0 0 reserved 001

×PLL clock over-equalized T3

010

×PLL clock over-equalized T3

011

×PLL clock over-equalized T3 1 0 0 correct equalisation 101

×PLL clock under-equalized T3 110

×PLL clock under-equalized T3 111

×PLL clock under-equalized T3

PLLForceL.3 PLLForceL.2 PLLForceL.1 PLLForceL.0 PLL LOCK

0000automatic lock behaviour 0001force PLL in-lock 0100force PLL into outer-lock 0110force PLL into inner-lock 1000force PLL into Hold mode (PLL frequency can be

forced using preset value in register PLLFreq)

XXXXall other combinations are reserved

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Philips Semiconductors Preliminary speciﬁcation

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Table 28 Description of PLLock bits for read operation

7.5.4 PLL B

ANDWIDTH SELECT REGISTER (PLLSET)

The function of this register is dependent upon whether its being read or written. The function for the write operation is described in Tables 29 to 34. Note the measurement conditions are: system clock = 2.15 MHz, bit clock = 4.3 MHz, bandwidth is proportional to the system clock.

When read this register returns the 8-bit PLL asymmetry value, see Table 29.

Table 29 PLL Bandwidth Select Register (address 01H) - WRITE/READ

Table 30 Description of PLLSet bits for write operation

Table 31 Selection of Slicer bandwidth

Table 32 Selection of integrator crossover frequency

BIT SYMBOL DESCRIPTION

7 to 0 PLLFreq<7:0> This register holds the 8 MSBs of the PLL frequency counter. The PLL frequency is

calculated as shown below:

76543210

SliceBW.1 SliceBW.0 IntegF0.1 IntegF0.0 PLLBWF1.1 PLLBWF1.0 LPBWF2.1 LPBWF2.0

PLLAsym.7 PLLAsym.6 PLLAsym.5 PLLAsym.4 PLLAsym.3 PLLAsym.2 PLLAsym.1 PLLAsym.0

BIT SYMBOL DESCRIPTION

7 SliceBW.1 These 2 bits select the Slicer bandwidth; see Table 31. 6 SliceBW.0 5 IntegF0.1 These 2 bits select the integrator crossover frequency; see Table 32. 4 IntegF0.0 3 PLLBWF1.1 These 2 bits select the PLL bandwidth; see Table 33. 2 PLLBWF1.0 1 LPBWF2.1 These 2 bits select the low-pass bandwidth; see Table 34. 0 LPBWF2.0

SliceBW.1 SliceBW.0 SLICER BANDWIDTH

0 0 12 Hz 0 1 50 Hz 1 0 200 Hz 1 1 This value is reserved.

IntegFO.1 IntegFO.0 INTEGRATOR CROSSOVER FREQUENCY

0 0 3780 Hz 0 1 1890 Hz 1 0 945 Hz 1 1 This value is reserved.

PLL

(Hz)

PLLFreq<7:0> ADC clock (Hz)×()

128

------------------------------------------------------------------------------------------

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

Table 33 Selection of PLL bandwidth

Table 34 Selection of low-pass bandwidth

7.5.5 PLL FREQUENCY PRESET REGISTER (PLLFREQ) The function of this register is dependent upon whether its being read or written. Tables 35 and 36 define the register

function for the write operation. Tables 35 and 37 define the register function for the read operation.

Table 35 PLL Frequency Preset Register (address 02H) - WRITE/READ

Table 36 Description of PLLFreq bits for write operation

Table 37 Description of PLLFreq bits for read operation

PLLBWF1.1 PLLBWF1.0 PLL BANDWIDTH

0 0 21000 Hz 0 1 10528 Hz 1 0 5264 Hz 1 1 2632 Hz

LPBWF2.1 LPBWF2.0 LOW-PASS BANDWIDTH

0 0 42100 Hz 0 1 21000 Hz 1 0 10528 Hz 1 1 This value is reserved.

76543210

PLLFreq.9 PLLFreq.8 PLLFreq.7 PLLFreq.6 PLLFreq.5 PLLFreq.4 PLLFreq.3 PLLFreq.2

JV.7 JV.6 JV.5 JV.4 JV.3 JV.2 JV.1 JV.0

BIT SYMBOL DESCRIPTION

7 to 0 PLLFreq<9:2> These are the 8 MSBs of the 10-bit code used to set the PLL frequency. The 2 LSBs

reside in the PLLEqu register; these 2 bits should be written to ﬁrst. The PLL frequency can be set using the following equation:

BIT SYMBOL DESCRIPTION

7 to 0 JV.7 to JV.0 Jitter value. These 8 bits determine the PLL clock jitter value (jitter values below 7%

cannot be measuredwith this register). The absoluteclock jitter value can be calculated as follows:

PLL

PLLFreq<9:0>

512

--------------------------------------

5–





clk

×=

PLL clock recovery jitter %

JV<7:0> 6.5–

2048

------------------------------------ 10 0×=

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

7.5.6 PLL EQUALIZER PRESET REGISTER (PLLEQU) The functionof thisregister is dependent upon whetherits being read or written.Tables 38, 39and 40 definethe register

function for the write operation. Tables 38 and 41 define the register function for the read operation.

Table 38 PLL Equalizer Preset Register (address 03H) - WRITE/READ

Table 39 Description of PLLEqu bits for write operation

Table 40 Selection of equalizer tap settings: a1 and a2

Table 41 Description of PLLEqu bits for read operation

76543210

PLLFreq.1 PLLFreq.0 Tap a1.2 Tap a1.1 Tap a1.0 Tap a2.2 Tap a2.1 Tap a2.0

−−−−−LongSymb FLock InLock

BIT SYMBOL DESCRIPTION

7 PLLFreq.1 These 2 bits are the 2 LSBs of the 10-bit PLL frequency code; see Section 7.5.5. 6 PLLFreq.0 5 Tapa1.2 These 3 bits select the equalizer tap setting a1; see Table 40. 4 Tapa1.1 3 Tapa1.0 2 Tapa2.2 These 3 bits select the equalizer tap setting a2; see Table 40. 1 Tapa2.1 0 Tapa2.0

Tap a1.2 Tap a1.1 Tap a1.0

a1 OR a2 EQUALIZER TAP SETTINGS

Tap a2.2 Tap a2.1 Tap a2.0

0000 001−0.0625 010−0.125 011−0.1875 100−0.25 101−0.3125 X X X All other settings are reserved.

BIT SYMBOL DESCRIPTION

7to3 − These 5 bits are reserved.

2 LongSymb If LongSymb = 1, then a run length of 14 has been detected. 1 FLock If FLock = 1, then PLL is in inner-lock range. 0 InLock If Inlock = 1, then PLL is in lock.

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Philips Semiconductors Preliminary speciﬁcation

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7.5.7 PLL LOCK AID2PRESET REGISTER (PLLFMEAS) The PLL setting point for the EFM counting locking strategy is controlled by setting the PLL frequency such that, there

are, on average, a fixed number of EFM transitions per PLL clock period: PLL Locking Frequency/EFM Transition Frequency = (EFM_Count + 32)/16 = 4.75 in a typical application. Thisvalue (4.75) isdependent ondisc andmechanical variations,improvements maybe achievedby adjusting the value

slightly.

Table 42 PLL Lock Aid2 Preset Register (address 04H) - WRITE

Table 43 Description of PLLFMeas bits

7.5.8 MOTOR CONTROL REGISTER 2(MOTOR2) This is a dual-function register. When read Motor2 gives an indication of the EYE opening of the equalised HF.

Table 44 Eye Open Register (address 0DH) - READ

76543210

RL3_En − EFMns.5 EFMns.4 EFMns.3 EFMns.2 EFMns.1 EFMns.0

BIT SYMBOL DESCRIPTION

7 RL3_En If RL3_En = 0, then EFM transition counting outer PLL lock strategy. If RL3_En = 1,

then RL3 detection PLL outer lock strategy.

6 − This bit is reserved.

5 to 0 EFMns<5:0> These 6 bits select the EFM nominal setting. The default nominal setting should be set

to ‘101110’.

76543210

EOV.7 EOV.6 EOV.5 EOV.4 EOV.3 EOV.2 EOV.1 EOV.0

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Philips Semiconductors Preliminary speciﬁcation

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7.5.9 VITERBI DETECTOR SETTING REGISTER (VITSET) Thisregister controlsanadvanced dataslicerfor improved

bit detector performance.

• An adaptive slicer performs a second slice operation. This has a higher bandwidth than the first slicer.

• Ifswitched on,the runlength 2push-back circuitpushes allrun lengthtwo symbolsto run length 3.The circuitwill determine which transition was most likely in error and shift transition on that edge.

To avoid advanced detector hang-up, caused by a detection level that is too high and is not brought down, a Watchdog counter on the slicer level is installed.

The Watchdog counter is a counter that counts on the front-end PLL clock.

• If rl1 or a rl2 received: count + stepsize

• Elsif no transition: count + 1

• Elsif transition on a valid runlength: count − 8

• Elsif (count > maxcount): reset count.

Stepsize and maxcountcan be set by writing to the VitSet register. On a reset of the counter the slice level is also reset.

Table 45 Viterbi Detector Setting Register (address 16H) - WRITE

Table 46 Description of VitSet bits

Table 47 Selection of Watchdog count step

7.5.10 M

OTOR CONTROL REGISTER 1(MOTOR1)

When read this register holds the 8-bit advanced slicer compensation value.

76 543210

AdSliceON AdDetON FEndAutoSON RL2PB WDog MaxCnt WDogCnt.1 WDogCnt.0

BIT SYMBOL DESCRIPTION

7 AdSliceON If AdSliceON = 0, then slicer reset (to logic 0). If AdSliceON = 1, then slicer active. 6 AdDetON If AdDetON = 0, then advanced bit detector off. If AdDetON = 1, then advanced bit

detector on.

5 FEndAutoSON If FEndAutoSON = 0, then auto-scaling in front-end Hold mode. If FEndAutoSON = 1,

then auto-scaling in front-end on.

4 RL2PB If RL2PB = 0, then run length 2 push-back off. If RL2PB = 1, then run length 2

push-back on. 3 WDog If WDog = 0, then slicer Watchdog is off. If WDog = 1, then slicer Watchdog is on. 2 MaxCnt If MaxCnt = 0, then maxcount is 1024. If MaxCnt = 1, then maxcount is 2048. 1 WDogCnt.1 These 2 bits select the Watchdog count step; see Table 47. 0 WDogCnt.0

WDogCnt.1 WDogCnt.0 WATCHDOG COUNT STEP

00 32 01 64 1 0 128 1 1 256

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

Table 48 Motor Control Register 1 (address 0CH) - READ

76543210

ASCV.7 ASCV.6 ASCV.5 ASCV.4 ASCV.3 ASCV.2 ASCV.1 ASCV.0

7.6 Decoder function

7.6.1 DEMODULATOR The demodulator block includes sync extraction,

interpolation and protection circuits, and converts the 14-bit EFM data and subcode words into 8-bit symbols.

Two counters are used to detect frame synchronisation. The coincidence counter detects the coincidence of successive syncs (i.e. 2 syncs are within 588 ± 1 EFM clock). The main counter partitions the EFM signal into 16 or 17-bit bytes; and is reset when a sync coincidence is found or the sync pulse is within ±6 EFM clock pulses. The sync coincidence signal generates the ‘lock’ signal which goes active HIGH when one sync coincidence is found, and goes inactive when no sync coincidence is found within 61 consecutive EFM frames. The frame sync detection circuit extracts the frame sync and will guard against mis-detection; up to 7 consecutive corrupted syncs will not disturb the sync detection.

After data demodulation the sector sync is extracted; a doublelock counteris used.Themain counterinterpolates the sector syncs, and a coincidence counter resets the main counter.

7.6.2 ERROR CORRECTOR The error corrector can correct up to 2 errors on the

C1 level and up to 4 errors on the C2 level. The error corrector also contains a flag processor. Flags are assigned to symbols when the error corrector cannot ascertain if the symbols are definitely good.C1 generates output flags that are used by C2. The C2 output flags are output via the FLAG signal along with the I2S, and can be used by the interpolator for concealment of uncorrectable errors for audio output.

• Muting of data. Data output via the serial interface and/or the EBU can be set to zero using register Output3.

• Concealment of audio errors. A simple 1 sample linear interpolator can be selected via register Output3. If selected the interpolator becomes active if a single sample is flagged as erroneous; left and right channels have independent interpolators.

7.6.2.1 CFLG pin

The error corrector outputs status information in serial format on the CFLG pin. Each frame consists of 11 bits (each 7 system clock periods long), beginning with a start bit, then data bits then pause bit (see Fig.9). The repetition rate of CFLGis notfixed; itdepends onthe discspeed and output interface speed. There is always at least one pause bit. The structure of the frame is shown in Table 49.

Table 49 Frame structure

BIT VALUE COMMENT

0 logic 1 start bit 1 to 3 cormode<2:0> 000 = C1 correction

011 = C2 correction 100 = corrector not active all other codes not used

4 corfail failure ﬂag set because

correction impossible

5 ﬂagfail failure ﬂag set because

correction too risky

6 to 9 rootcount<3:0> number of errors corrected,

after Euclidean algorithm

10 logic 0 pause bit

Fig.9 Format on CFLG pin.

MGR798

handbook, halfpage

bit 0 bit 1 start

bit

pause data bits

bit 2 bit 3

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Philips Semiconductors Preliminary speciﬁcation

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7.6.3 DECODER MODE SELECT REGISTER (DECOMODE)

Table 50 Decoder Mode Select Register (address 13H) - WRITE

Table 51 Description of DecoMode bits

Table 52 Selection of Decoder mode

7.6.4 F

RAME ERROR STATUS REGISTERS (C1BLER AND C2BLER)

These two registers are non-buffered counters. Each time a C1 frame with errors is found the register C1BLER is incremented. In the same way C2BLER increments on all C2 frames with errors. When the value of either register reaches 255, it will hold. When read, the register value is reset.

7.6.4.1 C1 Block Error Register (C1BLER)

Table 53 C1 Block Error Register (address 39H) - READ

7.6.4.2 C2 Block Error Register (C2BLER)

Table 54 C2 Block Error Register (address 3AH) - READ

76543210

Mode.6 Mode.5 Mode.4 Mode.3 Mode.2 Mode.1 Mode.0 LWCon

BIT SYMBOL DESCRIPTION

7 to 1 Mode<6:0> These 7 bits select the Decoder mode; see Table 52.

0 LWCon When a logic 0, LaserOn and WriteOn2 signals operate normally. When a logic 1,

LaserOn and WriteOn2 signals are reset.

MODE

DECODER MODE

6543210

0000000Flush mode. Deinterleaver table is emptied and all data is discarded. 0100000Normal play. Uses the Quad-pass error correction mode used for disc speeds up

to 75% of maximum deﬁned by ADCCLK. Note the data integrity should be checked using the CRC as the FLAG pin is not fully deﬁned in this mode.

0101000Fast play. Used for audio play or fast CDROM mode (25 to 100% of maximum

deﬁned by ADCCLK), this reduces the error correction performance, but also halves the throughput time of error corrector (only dual pass error correction algorithm used).

0110000Hold mode. Data into output FIFO is stopped (header/subheader decoding

remains operative). 0101010Encode mode. X X X X X X X All other combinations reserved.

76543210

C1BLER.7 C1BLER.6 C1BLER.5 C1BLER.4 C1BLER.3 C1BLER.2 C1BLER.1 C1BLER.0

76543210

C2BLER.7 C2BLER.6 C2BLER.5 C2BLER.4 C2BLER.3 C2BLER.2 C2BLER.1 C2BLER.0

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

7.6.5 DATA FIFO Thedecoder blockcan beviewed as aFIFO, demodulated

data is written in while the output interface reads from it. The way in which the FIFO is filled depends on the decoder mode set via register DecoMode. The decoder modes that effect the filling of the FIFO are described in Sections 7.6.5.1 to 7.6.5.3.

Data is read out via the output interface and is only possible if enough data is present in the FIFO. The minimumamount ofdata is110 C1 frames (C1 frame = 24 user bytes).

7.6.5.1 Flush mode

The FIFO contentis thrown away; no read-out possible. It is necessary to flush the FIFO every time a context switch is made; when data written to the FIFO is not subsequent with data already present in the FIFO.

7.6.5.2 Hold mode

Writing to the FIFO is stopped; read-out possible if FIFO wasfilled. Thismodeis intendedtoavoid FIFOoverflowby implementing a ‘stop write - jump back’ action in the microprocessor. When the microprocessor switches to hold mode the switch-over is synchronised internally with the next subcode block start, allowing the microprocessor to know exactly where the writing will stop or start. This mode is also intended to avoid overflow in the block decoder; on imminent overflow the microprocessor can switch to hold mode. When it jumps back one track and switches off hold mode on the samesubcode address the SAA7392 will make a seamless link.

7.6.5.3 Play mode

The FIFO is filled; read-out possible when FIFO filling big enough.

7.6.5.4 Data FIFO monitoring

The state of the internal data FIFO may be monitored by reading the AnaSet1 register. This gives the number of C1 frames present in the FIFO including those frames in the outer corrector (i.e. 110 in CD fast and 220 in CD normal). One C1 frame equates to 24 user bytes in CD mode).

7.7 Subcode interface

Q-channel subcode data can be read using the ClockPre and DecoMode registers. The ClockPre register must be read first; this contains the status of the Q-channel subcode that maybe read. Reading the ClockPreregister with Ready = 1 will block the subcode interface for data read; no new subcode will overwrite the current subcode, and the microprocessor may retrieve as many bytes (up to 12) as required by issuing reads to register DecoMode.

After finishing the subcode read the microprocessor must release the interface by issuing a read to the dummy register SubReadEnd (no data can be read from it); this allows the SAA7392 to capture new subcode frames.

The serial Q to W subcode is output on the V4 pin as illustrated in Fig.10. The subcode sync word is formed by a pause of

200

/nµs minimum; where n = the disc speed. Each subcode word starts with a logic 1followed by 7 bits (Q to W); the bit time is 0.5 of the period of the WCLK signal, (

11.3

/nµs). The gap between the words is between

11.3

/n and90/nµs. Note that the subcode data cannot be guaranteed at a rate higher than 0.5 × the maximum data rate programmed.

The subcode data is also available in the EBU output (EBUOUT).

Fig.10 Subcode format and timing on V4 pin.

handbook, full pagewidth

MGR799

W96

200/n µs min 11.3/n µs

11.3/n µs min 90/n µs max

1 Q1 R1 S1 T U1 V W1 1 Q2

n = disc speed

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

7.7.1 CLOCK PRESET REGISTER (CLOCKPRE) This is a dual-function register. When read the status of the Q-channel is returned.

Table 55 Clock Preset Register (address 12H) - READ

Table 56 Description of ClockPre bits

7.7.2 D

ECODER MODE SELECT REGISTER (DECOMODE)

This is a dual-function register. When read this register holds the Q-channel subcode data.

Table 57 Decoder Mode Select Register (address 13H) - READ

7.7.3 S

UBCODE READ END REGISTER (SUBREADEND)

After finishing a subcode read, the microprocessor must release the interface to allow the SAA7392 to capture new subcode frames. This is done by issuing a read to SubReadEnd. No data can be read from this register; only the side effect is important.

Table 58 Subcode Read End Register (address 14H) - READ

76543210

Ready Busy CRC OK −−−−−

BIT SYMBOL DESCRIPTION

7 Ready If Ready = 0, then buffer ﬁlling. If Ready = 1, then valid Q subcode frame available. 6 Busy If Busy = 0, then buffer ﬁlling. If Busy = 1, then buffer held (set after reading this register

with Ready = 1).

5 CRC OK If CRC OK = 0, then CRC not checked or not OK. If CRC OK = 1, then CRC of

Q-channel checks OK, only valid if Ready = 1.

4to0 − These 5 bits are reserved.

76543210

SubD.7 SubD.6 SubD.5 SubD.4 SubD.3 SubD.2 SubD.1 SubD.0

76543210

−−−−−−−−

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

7.8 Digital output

The AES/EBU signal is available on pin EBUOUT, according to the format defined by the

“IEC958

specification”

. This signal is only available in the CLV modes of the decoder (not in QCLV). Three different modes can be selected:

• EBU off

• EBU data all zero

• EBU data valid.

The EBU interface uses a clock derived from XTLI for timing generation. For correct operation of the EBU interface, BCLKmust be non-gated and the selected EBU clock and BCLK must fulfil the following constraint:

WCLK is BCLK divided by 16, 24 or 32 depending on the chosen output format.

EBU clock WCLK 64×=

7.8.1 INPUT CONFIGURATION REGISTER (INPUTCONFIG)

Table 59 Input Conﬁguration Register (address 1EH) - WRITE

Table 60 Description of InputConﬁg bits

76543210

EBUClkSelect −−−−ScramOn InputFmt.1 InputFmt.0

BIT SYMBOL DESCRIPTION

7 EBUClkSelect If EBUClkSelect = 0, then the EBU clock frequency is

/3f

XTLI

. If

EBUClkSelect = 1, then the EBU clock frequency is2/3f

XTLI

(input

MUXSWI must be a logic 1 for this setting).

6to3 − These 4 bits are reserved.

2 ScramOn See Section 7.11.1. 1 InputFmt1 0 InputFmt0

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

7.8.2 FORMAT The digital audio output consists of 32-bit words (subframes) transmitted in biphasemark code (two transitions for a

logic 1 and one transition for a logic 0). Words are transmitted in blocks of 384.

Table 61 Digital audio output subframe format

Table 62 Channel status bit assignment

BIT FIELD NAME DESCRIPTION

0 to 3 sync The sync word is formed by violation of the biphase rule and therefore does not

contain any data. Its length is equivalent to 4 data bits. The 3 different sync patterns indicate the following situations:

• Sync B: Start of a block (384 words), word contains left sample

• Sync M: Word contains left sample (no block start)

• Sync W: Word contains right sample.

4 to 7 auxiliary These bits are not used; normally zero. 8 to 27 audio sample Left and right samples are transmitted alternately. The ﬁrst 4 bits not used (always

zero); 2’s compliment; LSB = bit 12 and MSB = bit 27.

28 validity ﬂag If validity ﬂag = 1, audio samples are ﬂagged if an error has been detected but was

uncorrectable. This flag remains the same even if data is taken after concealment.

29 user data Subcode bits Q until W from the subcode section are transmitted via the user data

bit. This data is asynchronous with the block rate.

30 channel status The channel status bit is the same for left and right words. Therefore, a block of

384 words contains 192 channel status bits. The category code is always CD. The bit assignment is shown in Table 62.

31 parity bit Even parity for bits 4 to 30.

BIT FIELD NAME DESCRIPTION

0 to 4 control Bits 1 to 4 copied from register Output2. Bit 2 is logic 1 when copy permitted. Bit 3 is

logic 1 when recording has pre-emphasis 5 to 7 reserved mode always zero 8 to 15 category code CD: bit 8 = logic 1, all other bits = logic 0 28 to 29 clock accuracy set by register Output2:

10 = level I 00 = level II

01 = level III 16 to 27, remaining always zero 30 to 191

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

7.9 Serial output interface

The serial data output interface consists of three signals: WCLK (word select), BCLK (serial clock), DATAO (serial data). The polarity of WCLK and the data can be inverted. The FLAG signal is used to identify if there are errors in either the LSB or MSB of the 16-bit data word. The interfacecan beused asamaster orslaveinterface (BCLK and WCLK are then inputs), selectable by register Output1.

The serial datainterface can be switched into two modes: PhilipsI2Sand theEIAJformat (theprotocol can useeither 16, 24 or 32 BCLK clocks for each 16-bit output, selectable by Output1register). The formats are shownin Figs 11 to 16.

The BCLK frequency can be selected by register ClockPre, or input externally. If the data out rate does not correspond with the disc speed and the bit clock data, the FIFO will either fill or empty. FIFO underflow (STOPCK output goes HIGH indicating absence of data) must be avoided. If BCLK is an input, it should be stopped and restarted again when STOPCK goes LOW. If BCLK is output, it is automatically stopped if BCLK gate enable is set(via registerClockPre);if itisnot setthenunpredictable operation will result.

Fig.11 Format 1: 16 clocks/word I2S format.

handbook, full pagewidth

MGR800

D15

DATA

FLAG FLAG - MSB (1 is unreliable) FLAG - LSB

WCLK

SYNC

BCLK

D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0D1 D0 D15 D14

left

right

Fig.12 Format 2: 16 clocks/word ‘S’ format (WCLK inverted).

handbook, full pagewidth

MGR801

D15

DATA

FLAG FLAG - MSB (1 is unreliable) FLAG - LSB

WCLK

SYNC

BCLK

D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0D1 D0 D15 D14

right

left

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

Fig.13 Format 3: 24 clocks/word I2S format.

handbook, full pagewidth

MGR802

D15

DATA

FLAG FLAG - MSB (1 is unreliable) FLAG - LSB

WCLK

SYNC

BCLK

D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 D15 D14

left

right

Fig.14 Format 4: 24 clocks/word ‘S’ format (WCLK inverted).

handbook, full pagewidth

MGR803

D15

DATA

FLAG FLAG - MSB (1 is unreliable) FLAG - LSB

WCLK

SYNC

BCLK

D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0D1 D0

right

left

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

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MGR804

D15

DATA

FLAG FLAG - MSB (1 is unreliable) FLAG - LSB

WCLK

SYNC

BCLK

D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 D15 D14

left

right

Fig.15 Format 5: 32 clocks/word I2S format.

MGR805

D15

DATA

FLAG FLAG - MSB (1 is unreliable) FLAG - LSB

WCLK

SYNC

BCLK

D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0D1 D0

right

left

Fig.16 Format 6: 32 clocks/word ‘S’ format (WCLK inverted).

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

7.9.1 I2SOUTPUT REGISTER (OUTPUT1) Table 63 I

S Output Register 1 (address 05H) - WRITE

Table 64 Description of Output1 bits

Table 65 Format selection

7.9.2 I

SOUTPUT REGISTER 2(OUTPUT2)

Table 66 I

S Output Register 2 (address 06H) - WRITE

Table 67 Description of Output2 bits

76543210

Format.2 Format.1 Format.0 WClkIO BClkIO −−−

BIT SYMBOL DESCRIPTION

7 Format.2 These 3 bits select the format; see Table 65. 6 Format.1 5 Format.0 4 WClkIO When WClkIO = 0, then WCLK is in Input mode. When WClkIO = 1, then WCLK is in

Output mode.

3 BClkIO When BClkIO = 0, then BCLK is in Input mode. When BClkIO = 1, then BCLK is in

Output mode.

2to0 − These 3 bits are reserved.

Format.2 Format.1 Format.0 FORMAT

0 0 0 Format 1 0 0 1 Format 2 0 1 0 Format 3 0 1 1 Format 4 1 0 0 Format 5 1 0 1 Format 6

76543210

EBUValid EBUOn EBUCon.29 EBUCon.28 EBUCon.3 EBUCon.2 EBUCon.1 EBUCon.0

BIT SYMBOL DESCRIPTION

7 EBUValid If EBUValid = 0, then EBU/IEC958 output data zero. If EBUValid = 1, then EBU/IEC958

output data valid.

6 EBUOn If EBUOn = 0, then EBU/IEC958 outputis switched off. If EBUOn =1, then EBU/IEC958

output switched on.

5 EBUCon.29 These 2 bits are copied to bits 29 and 28 of the IEC958 control channel (crystal

accuracy); see Table 62.

4 EBUCon.28

3 to 0 EBUCon<3:0> These 4 bits are copied to bits 4 to 1 of the IEC958 control channel (data/audio, copy

protect, de-emphasis); see Table 62.

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

7.9.3 I2SOUTPUT REGISTER 3(OUTPUT3) Table 68 I

S Output Register 3 (address 07H) - WRITE

Table 69 Description of Output3 bits

76543210

WClkHLeft DescrmOn InterpOn − FlagPin KillDataOn KillEBUOn −

BIT SYMBOL DESCRIPTION

7 WClkHLeft When WClkHLeft = 0, then WCLK is HIGH on right byte of I2S/S format output; (use for

I2S format modes). When WCLKHLeft = 1, then WCLK is HIGH on left byte of I2S/S format output; (use for S format modes).

6 DescrmOn When DescrmOn = 1, then Descrambling function on.

For CD-DA playbackdescrambling has tobe switched off.For CD-ROMdescrambling is required but it might also be possible that a descrambling function is available in the buffer manager (block decoder).

5 InterpOn When InterpOn = 0, then audio data interpolation is switched off. When InterpOn = 1,

then audio data interpolation switched on. 4 − This bit is reserved. 3 FlagPin When FlagPin = 0, then ﬂag pin sends out EDC-OK signal on byte 2063 of the sector.

When FlagPin = 1, then ﬂag pin sends out reliability ﬂag information. 2 KillDataOn When KillDataOn = 0, then in normal mode. When KillDataOn = 1, then all data inserial

output channel is set to zero. 1 KillEBUOn When KillEBUOn = 0, then in normal mode. When KillEBUOn = 1, then all data in

IEC958/EBU channel is set to zero 0 − This bit is reserved.

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

7.10 Motor control

The spindle motor is controlled by a fully integrated digital servo sub-system within the SAA7392. Information from the data FIFO, data recovery PLL and tacho inputs may be used to calculate the motor control output signals.

The frequency set-point, the FIFO settings and coefficients G, Kiand Kf are all programmable using the seven motor control registers. The motor can be controlled in either Pulse Width Mode (PWM) or Pulse Density Mode (PDM).

The tacho controlsubsystem allows a range ofdifferent motor tacho systems to be used, the modes and prescalers are programmable via the tacho register set. (Note due to pin multiplexing, PWM motor control mode and CAV mode using tacho control are mutually exclusive).

Fig.17 Motor servo block diagram.

handbook, full pagewidth

MGR807

Wobble frequency

24T

PLL frequency

FIFO filling

FIFO half-full

set-point

XError

tacho

1/(2.667 × system clock)

tacho

set-point

reset

SW1

SW2

overflow detector

motor

pads

motor

analog output

stage gain

−

frequency/tacho

set-point

tacho

interrupt

tacho

frequency

TACHO

LOW-PASS

FILTER

PDM/PWM

MODULATOR

COMPARE

TRANSITION

DETECTOR

MOTO2/T3

−

EXTERNAL MOTOR CIRCUIT

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

7.10.1 MOTOR CONTROL REGISTER 1(MOTOR1) The frequency/tacho set-point (i.e. the target PLL or tacho frequency) is calculated as follows:

Note that: (PLL frequency − frequency set-point) must be less than 1.33 × ADC clock.

Table 70 Motor Control Register 1 (address 0CH) - WRITE

7.10.2 M

OTOR CONTROL REGISTER 2(MOTOR2)

Table 71 Motor Control Register 2 (address 0DH) - WRITE

Table 72 Description of Motor2 bits

Table 73 Selection of coefﬁcient G

76543210

MFS.7 MFS.6 MFS.5 MFS.4 MFS.3 MFS.2 MFS.1 MFS.0

76543210

G.2 G.1 G.0 Ki.1 Ki.0 Kf.2 Kf.1 Kf.0

BIT SYMBOL DESCRIPTION

7 G.2 These 3 bits select coefﬁcient G; see Table 73. 6 G.1 5 G.0 4 Ki.1 These 2 bits select coefﬁcient K

; see Table 74.

In order to set the integrator bandwidth low enough at high system clock speeds, an

extra divider for Ki has been added. This is set by writing to register Motor7. The

resulting K

i(tot)

is then the Ki set by Motor2 multiplied by the Ki’ set by Motor7.

3 Ki.0

2 Kf.2 These 3 bits select coefﬁcient K

; see Table 75. 1Kf.1 0Kf.0

G.2 G.1 G.0 COEFFICIENT G

0 0 0 8.36 0 0 1 10.4 0 1 0 16.7 0 1 1 20.9 1 0 0 33.4 1 0 1 41.8 1 1 0 66.9 1 1 1 83.6

Frequency set-point 1

MFS<7:0>

256

--------------------------- -





– 2.667× ADC clock×=

PLL frequency

PLLFreqR<7:0>

128

------------------------------------------





ADC clock×=

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

Table 74 Selection of coefﬁcient K

Table 75 Selection of the coefﬁcient K

7.10.3 MOTOR CONTROL REGISTER 7(MOTOR7)

Table 76 Motor Control Register 7 (address 1DH) - WRITE

Table 77 Description of Motor7 bits

Ki.1 Ki.0 COEFFICIENT K

0 0 3.1 × 10

−5

0 1 6.1 × 10

−5

1 0 1.2 × 10

−4

1 1 2.4 × 10

−4

Kf.2 Kf.1 Kf.0 COEFFICIENT K

0 0 0 reserved

0013.7×10

−9

0107.5×10

−9

0111.5×10

−8

1003.0×10

−8

1016.0×10

−8

1101.2×10

−7

1112.4×10

−7

76543210

PhErSrc − Kf’.2 Kf’.1 Kf’.0 Ki’.2 Ki’.1 Ki’.0

BIT SYMBOL DESCRIPTION

7 PhErSrc If PhErSrc = 0, then the phase error source is FIFOFil. If PhErSrc = 1, then the phase

error source is XError. 6 − This bit is reserved. 5 Kf’.2 These 3 bits select the value of the K

f’

coefﬁcient; see Table 78.

Kf’operates by sampling the input. For example, for Kf’= 1, every sample of the input is

passed through to a following integrator circuit, for a Kf’ of 0.5 every 2nd sample is

passed through, for a Kf’ of 0.25 every 4th sample is passed through, and so on.

For a DC input signal, Kf× Kf’should always give the same result. If however, the input

is varying sufﬁciently quickly, the Kf× Kf’ combinations with the same product will not

always give the same result, especially for low values of Kf’, where the sampling in the

extreme becomes 1 out of every 128 samples. (The input samples to the block that

performs the Kf’multiplication occur at a rate of 1 sample every 24 system clock

periods.)

4 Kf’.1 3 Kf’.0

2 Ki’.2 These 3 bits select the value of the K

i’

coefﬁcient; see Table 78. 1 Ki’.1 0 Ki’.0

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

Table 78 Selection of coefﬁcient Kf’ and K

i’

7.10.4 MOTOR CONTROL REGISTER 3(MOTOR3) The function of this register is dependent upon whether its being read or written. Whenwritten, thevalue determines theFIFO set-pointvaluein C1 frames(oneC1 frame is24 bytes). TheFIFOset-point

value should be set to a value greater than 110 frames for CD Fast mode and greater than 219 frames for CD Normal mode. The maximum value for the FIFO half-full value is 256. Normally, the FIFO set-point value should be set to the minimum value plus a margin for disc overspeed. The set-point value is calculated as shown below:

FIFO set-point value = HFSP<7:0> × 8. When read, the motor speed can be determined from the recovered tacho frequency. Note this information is only valid

whena Hallmotor isbeing usedin theapplication andthe tacho subsystem is correctlyconfigured. Thereading isrelated to the motor frequency (relative to pulse rate on a single tacho input pin) as shown in Equation (1); the actual Tacho frequency can be calculated as shown in Equation (2). Negative frequencies will be measured if the motor is rotating in reverse.

(1)

(2)

Table 79 Motor Control Register 3 (address 0EH) - WRITE/READ

Table 80 Description of Tacho4 bits for read operation

Kf’.2 Kf’.1 Kf’.0

COEFFICIENTS K

f’

AND K

i’

Ki’.2 Ki’.1 Ki’.0

0001

0010.5 0 1 0 0.25 0 1 1 0.125 1 0 0 0.0625 1 0 1 0.03125 1 1 0 0.015625 1 1 1 0.0078125

76543210

HFSP.7 HFSP.6 HFSP.5 HFSP.4 HFSP.3 HFSP.2 HFSP.1 HFSP.0

TachoFreq.7 TachoFreq.6 TachoFreq.5 TachoFreq.4 TachoFreq.3 TachoFreq.2 TachoFreq.1 TachoFreq.0

BIT SYMBOL DESCRIPTION

7 to 0 TachoFreq<7:0> These 8 bits indicate the Tacho frequency (2’s complement notation).

Tacho4

6 Tacho1×()Motor frequency×[]

Tacho sample rate

---------------------------------------------------------------------------------------- -

Tacho frequency (Hz) Tacho4

ADC clock

128

--------------------------- -

×=

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

7.10.5 MOTOR CONTROL REGISTER 4(MOTOR4)

Table 81 Motor Control Register (address 0FH) - WRITE

Table 82 Description of Motor4 bits

Table 83 Selection of motor servo state

76543210

PWM_PDM OVF_SW SW1 SW2 MSCON.3 MSCON.2 MSCON.1 MSCON.0

BIT SYMBOL DESCRIPTION

7 PWM_PDM If PWM_PDM = 0, then motor control in PWM mode. If PWM_PDM = 1, then motor

control in PDM mode.

6 OVF_SW If OVF_SW = 0, then SW1 and SW2 in normal operation. If OVF_SW = 1, then SW1

and SW2 will both open on overﬂow. 5 SW1 If SW1 = 0, then SW1 is open. If SW1 = 1, then SW1 is closed. 4 SW2 If SW2 = 0, then SW2 is open. If SW2 = 1, then SW2 is closed. 3 MSCON.3 These 4 bits are used to select the motor servo state; see Table 83. 2 MSCON.2 1 MSCON.1 0 MSCON.0

MSCON.3 MSCON.2 MSCON.1 MSCON.0 MOTOR SERVO STATE

0 0 0 0 Motor servo active. 0 0 0 1 Motor servo off (clears integrator). 0 0 1 0 Motor servo 3-state (motor output pin 3-states). 0 0 1 1 These 5 codes are reserved. 0100 0101 0110 0111 1 0 0 0 Motor start at 37% power. 1 0 0 1 Motor start at 50% power. 1 0 1 0 Motor start at 75% power. 1 0 1 1 Motor start at 100% power. 1 1 0 0 Motor stop at 37% power. 1 1 0 1 Motor stop at 50% power. 1 1 1 0 Motor stop at 75% power. 1 1 1 1 Motor stop at 100% power.

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

7.10.6 MOTOR CONTROL REGISTERS 5 AND 6 These two registers hold the 16-bit motor integrator value. The motor integrator value can be read or updated using

registers Motor5 and Motor6. Register Motor5 should be read or written first to prevent spurious results.

7.10.6.1 Motor Control Register 5 (Motor5)

Table 84 Motor Control Register 5 (address 10H) - READ/WRITE

7.10.6.2 Motor Control Register 6 (Motor6)

Table 85 Motor Control Register 6 (address 11H) - READ/WRITE

7.10.7 T

ACHO GAIN SETTING REGISTER (TACHO1)

This register holds the 8-bit Tacho multiplier frequency value.

Table 86 Tacho Gain Setting Register (address 17H) - WRITE

7.10.8 T

ACHO TRIP SETTING REGISTER (TACHO2)

This register holds the 8-bit Tacho interrupt trip frequency value.

Table 87 Tacho Trip Setting Register (address 18H) - WRITE

76543210

MIV.7 MIV.6 MIV.5 MIV.4 MIV.3 MIV.2 MIV.1 MIV.0

76543210

MIV.15 MIV.14 MIV.13 MIV.12 MIV.11 MIV.10 MIV.9 MIV.8

76543210

KTacho.7 KTacho.6 KTacho.5 KTacho.4 KTacho.3 KTacho.2 KTacho.1 KTacho.0

76543210

TIntF.7 TIntF.6 TIntF.5 TIntF.4 TIntF.3 TIntF.2 TIntF.1 TIntF.0

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Philips Semiconductors Preliminary speciﬁcation

Channel encoder/decoder CDR60 SAA7392

7.10.9 TACHO CONTROL REGISTER 3(TACHO3)

Table 88 Tacho Control Register 3 (address 19H) - WRITE

Table 89 Description of Tacho3 bits

Table 90 Motor servo frequency source selection

76543210

SConS.1 SConS.0 TachoFRes Moto2/T3 Fsam.1 Fsam.0 TachoIntLF TachoMode

BIT SYMBOL DESCRIPTION

7 SConS.1 These 2 bits select the motor servo frequency source; see Table 90. 6 SConS.0 5 TachoFRes IfTachoFRes = 0, thenthe tacho ﬁlteris enabled (normal mode). If TachoFRes = 1, then

the tacho ﬁlter is reset. 4 Moto2/T3 If Moto2/T3 = 0, then MOTO2 pin is an output. If Moto2/T3 = 1, then MOTO2 pin is

tacho T3. 3 Fsam.1 These 2 bits select the tacho sample rate (f

) as shown below:

2 Fsam.0

1 TachoIntLF If TacholntLF = 0, then tacho interrupt isenabled on frequenciesLOWER than set-point.

If TacholntLF = 1, then tacho interrupt is enabled on frequencies HIGHER than

set-point. 0 TachoMode If TachoMode = 0, tacho is in 3-pin mode. If TachoMode = 1, tacho is in 1-pin mode.

SConS.1 SConS.0 MOTOR SERVO FREQUENCY SOURCE

0 0 Motor servo locks to PLL clock (recovered from channel EFM). 0 1 This value is reserved. 1 0 Motor servo runs on tacho frequency. 1 1 This value is reserved.

fsHz()

Fsam<1:0>× system clock×

32768

-----------------------------------------------------------------------------------

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7.11 The serial in function

The serialin function takes serial data from the block decoder andpasses the dataon to the encoder. It supports theI2S and Sony 3-wire serial interfaces (DATAI, BCLK and WCLK). The block is slave to the interface and therefore the BCLK and WCLK signals are generated externally and are the same signals as the serial data output interface. The selection of the input format follows the output interface setting.

7.11.1 INPUT CONFIGURATION REGISTER (INPUTCONFIG)

Table 91 Input Conﬁguration Register (address 1EH) - WRITE

Table 92 Description of InputConﬁg bits

Table 93 Selection of encoder input format

7 6 543210

EBUClkSelect − −−−ScramOn InputFmt.1 InputFmt.0

BIT SYMBOL DESCRIPTION

7 EBUClkSelect See Section 7.8.1.

6to3 − These 4 bits are reserved.

2 ScramOn This bit enables/disables the scrambling function. If ScramOn = 1, then the

scrambling function is enabled. Scrambling must be off for CD-DA and on for CD-ROM. However, if the buffer

manager (block decoder) already scrambles the CD-ROM data, then the user must

switch scrambling off in the CDR60. 1 InputFmt.1 These 2 bits select the input format to the encoder; see Table 93. 0 InputFmt.0

INPUTFMT.1 INPUTFMT.0 INPUT FORMAT

0 0 normal input data to encoder 0 1 all zero input data to encoder 1 X random input data to encoder

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7.12 The subcode insert function

The SAA7392 allows two modes of subcode insertion: Bypass mode and Auto-format mode.

• Bypass mode. In this mode the subcode is generated by a block decoder (such as PLUM) and transmitted to the SAA7392 via the proprietary Subcode Record Interface (SRI). P, Q and R to W channels are supported in this mode. However, the Q-channel CRC and the S0 and S1 bytes are generated by the SAA7392. The Q-channel CRC is calculated from the SRI data Q-bits and hence the 16 Q-channel CRC bits in the SRI data are discarded.

• Auto-format mode. In this mode, the SAA7392 will generate subcode data itself. However, only P and Q subcode channels are supported.

It is possibleto beginsubcode recordingat anypoint inthe subcode frame, for both internally and externally generated subcode, by loading the preset count field (bits PCF<6:0> in the SubPresetCount register) with the start positionin thesubcode frameand settingthe init_framebit to a logic 1.

Itmust beensured that,if used, theexternal blockencoder is ready to transmit subcode data before the frame initialisation is started. When the frame initialisation sequence is complete the init_frame bit is automatically cleared to a logic 0.

It should be noted that the frame initialisation sequence must be carried out at the beginning of every record session, even if starting from byte 0.

7.12.1 SUBCODE PRESET COUNT REGISTER (SUBPRESETCOUNT)

The presetcount field isloaded when thisregister is written. The current count field is returned when this register is read.

Table 94 Subcode Preset Count Register (address 22H) - WRITE

Table 95 Subcode Preset Count Register (address 22H) - READ

76543210

init_frame PCF.6 PCF.5 PCF.4 PCF.3 PCF.2 PCF.1 PCF.0

76543210

init_frame CCF.6 CCF.5 CCF.4 CCF.3 CCF.2 CCF.1 CCF.0

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7.12.2 SUBCODE CONFIGURATION REGISTER 1(SUBCONFIG1)

Table 96 Subcode Conﬁguration Register 1 (address 23H) - WRITE

Table 97 Description of SubConﬁg1 bits

Table 98 Selection of Q-channel time ﬁelds

76543210

sri_on p_toggle p_one time1 time2 copy_alter zero_inc time3

BIT SYMBOL DESCRIPTION

7 sri_on If sri_on = 0, then subcode generated by CDR60 for P and Q-channels; R to W

channels are all logic 0’s. If sri_on = 1, then subcode data from SRI except Q-channel CRC and S0 and S1 bytes. SRI frame sync checking is enabled. SubConﬁg1 register bits 1 to 6 do not effect the SRI subcode data.

6 p_toggle If p_toggle = 0, then P-channel takes value of the p_one bit. If p_toggle = 1, then

P-channel is the value of bit 5 of the absolute frame byte in the current Q-code memory bank.

5 p_one P-channel is the value of this bit. The P-channel takes on a new value of p_one at the

start of a subcode frame.

4 time1 These 3 bits control the incrementing and decrementing of the Q-channel absolute and

relative time ﬁelds; see Table 98.

3 time2 0 time3 2 copy_alter If copy_alter = 0, then the copy bit will hold its current value. The copy bit value can be

changed by writing to the Q-code memory control byte via the SubData register. If copy_alter = 1, then the copy bit in the subcode control byte will alternate every 4 subcode frames. This is accomplished by copyingbit 2 of the current Q-code memory absolute frame byte to the copy bit of the Q-code memory control byte.

1 zero_inc If zero_inc = 0, then all bits of the Q-code memory zero byte will hold. If zero_inc = 1,

then bits 0 to 3 of the current Q-code memory zero byte are incremented modulo 10. Bits 4 to 7 are unchanged.

time3 time2 time1 Q-CHANNEL TIME FIELD

0 0 0 increment relative and absolute time 0 1 1 increment relative time and hold absolute time 1 0 0 hold relative time and increment absolute time 1 0 1 decrement relative time and increment absolute time 1 1 1 hold relative and absolute time X X X All other settings are reserved.

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7.12.3 SUBCODE CONFIGURATION REGISTER 2(SUBCONFIG2)

Table 99 Subcode Conﬁguration Register 2 (address 24H) - READ/WRITE

Table 100 Description of SubConﬁg2 bits

7.12.4 S

UBCODE START DATA REGISTER (SUBSTARTDATA)

Table 101 Subcode Start Data Register (address 25H) - WRITE

Table 102 Description of SubStartData bits

7.12.5 S

UBCODE DATA REGISTER (SUBDATA)

Sub-CPU read/write from/to the SubData register causes a read or write to occur on the Q-code memory. Normally the sub-CPU would access all 10 bytes of a Q-code bank. Before such a block access the sub-CPU must issue a write to the SubStartWrite register.

Table 103 Subcode Data Register (address 26H) - READ/WRITE

76543210

BSwOn InOBO relcnt.2 relcnt.1 relcnt.0 curcnt.2 curcnt.1 curcnt.0

BIT SYMBOL DESCRIPTION

7 BSwOn If BSwOn = 0, then no bank switching. If BSwOn = 1, then bank switch will occur when

ﬁrst subcode sync output by EFM modulator and curcnt<2:0> = 000

6 InOBO If InOBO = 0, then original bank is used again. In this case no bank switching or

interrupts occur andautomatic bank update isstill done on theoriginal bank, evenwhen the other bank is output. If InOBO = 1, then the other bank is automatically inserted

once into Q-channel, this bit is automatically reset to logic 0. 5 to 3 relcnt<2:0> Count value to load curcnt<2:0>. 2 to 0 curcnt<2:0> Current value of subcode frame counter.

76543210

NextSet −−−−−−−

BIT SYMBOL DESCRIPTION

7 NextSet If NextSet = 0, then access other bank. If NextSet = 1, then access current bank that is

being used for Q-channel data. 6to0 − These 7 bits are reserved.

76543210

QCD.7 QCD.6 QCD.5 QCD.4 QCD.3 QCD.2 QCD.1 QCD.0

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7.12.6 GENERATING CD-TEXT CD-Text is stored in the R to W channels of the disc. The

CD-Text standardstates that aCD-Text disc must at least contain CD-Text information in the lead-in, and it may contain CD-Text information in the program area.

CDR60 supports writing of the R to W subcode channels only in bypass modewhich meansthat thewhole subcode informationhas tobe generatedfrom anexternal device.It is not possible to use the automatic subcode formatting features like auto-incrementing or the two buffers which means that the application has to take care of the whole subcode formatting itself. However, if an application likes to write a CD-Text disc that contains CD-Text information only in the lead-in area, then the application can use the auto-format featuresfor writing theprogram area and only use the bypass mode to write CD-Text information when writing the lead-in.

7.13 The data encoder block

Thisblock generatesall C1/C2 errorcorrection datafor the raw data.

7.14 Encode control block

This block controlsthe starting and stopping of the writing process. It does this based on the QSync signal it receives from the subcode insert block and the ATIPSync and W441disc positioninformation itreceivesfrom theWobble processor.

7.14.1 ENCODE WRITEON CONTROL REGISTER (ENCODEWCON)

Table 104 Encode WriteOn Control Register (address 30H) - READ/WRITE

Table 105 Description of EncodeWContr bits

76543210

WriteOn1 WriteOn2 EFMDelOn Count.4 Count.3 Count.2 Count.1 Count.0

BIT SYMBOL DESCRIPTION

7 WriteOn1 If WriteOn1 = 0, then laser is off or turn laser off. If WriteOn1 = 1, then laser is on or turn

laser on.

6 WriteOn2 If WriteOn2 = 0, then data ﬂow is off or turn data ﬂowoff. If WriteOn2 = 1, thendata ﬂow

is on or turn data ﬂow on.

5 EFMDelOn If EFMDelOn = 0, then disable delay of WriteOn1. If EFMDelOn = 1, then enable delay

of WriteOn1 with EncodeStartOffset/EncodeStopOffset of W441 pulses relative to

ATIPSync.

4 Count.4 These 5 bits determine the delay generation of internal WriteOn ﬂags by Count<4:0>

ATIPSyncs.

3 Count.3 2 Count.2 1 Count.1 0 Count.0

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7.14.2 ENCODE START OFFSET REGISTER (ENCODESTARTOFFSET)

Table 106 Encode Start Offset Register (address 31H) - WRITE

Table 107 Description of EncodeStartOffset bits

7.14.3 ENCODE STOP OFFSET REGISTER (ENCODESTOPOFFSET)

Table 108 Encode Stop Offset Register (address 32H) - WRITE

Table 109 Description of EncodeStopOffset bits

7.14.4 ENCODE XOFFSET REGISTER (ENCODEXOFFSET) The 10-bit value for Xoffset must be written in two steps. EncodeXOffset can be written to in any order. XOffset<9:0> is

a 2’s complement number which gives a range of −511 to 511.

Table 110 Encode XOffset Register (address 33H) - WRITE

Table 111 Description of EncodeXoffset bits

76543210

StartOffset.7 StartOffset.6 StartOffset.5 StartOffset.4 StartOffset.3 StartOffset.2 StartOffset.1 StartOffset.0

BIT SYMBOL DESCRIPTION

7 to 0 StartOffset<7:0> If enabled, WriteOn ﬂags are delayed by EncodeStartOffset pulses of

W441 when starting the encode process.

76543210

StopOffset.7 StopOffset.6 StopOffset.5 StopOffset.4 StopOffset.3 StopOffset.2 StopOffset.1 StopOffset.0

BIT SYMBOL DESCRIPTION

7 to 0 StopOffset<7:0> If enabled, WriteOn ﬂags are delayed by EncodeStopOffset pulses of

W441 when stopping the encode process.

76543210

0 0 XOffset.5 XOffset.4 XOffset.3 XOffset.2 XOffset.1 XOffset.0 01−−XOffset.9 XOffset.8 XOffset.7 XOffset.6

BIT SYMBOL DESCRIPTION

7 to 0 XOffset<9:0> Offset applied to the phase error calculated between ATIPSync and

Q-code sync.

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7.15 The EFM modulator

This block takes data from the data encoder block and adds the subcode and synchronisation information. This data stream ismodulated usingEFM according tothe Red Book standard. Thisdata is outputserially fromthe SAA7392, with the associated EFM clock signal.

7.15.1 EFM PRESET COUNT REGISTER (EFMPRESETCOUNT)

Table 112 EFM Preset Count Register (address 3CH) - WRITE

Table 113 Description of EFMPresetCount bits

7.15.2 EFM M

ODULATOR CONFIGURATION REGISTER (EFMMODCONFIG)

Table 114 EFM Modulator Conﬁguration Register (address 3DH) - WRITE

Table 115 Description of EFMModConﬁg bits

7 6 543210

−−Count.5 Count.4 Count.3 Count.2 Count.1 Count.0

BIT SYMBOL DESCRIPTION

7 and 6 − These 2 bits are reserved.

5 to 0 Count<5:0> This ﬁeld can be used to program a position in an EFM frame for the modulator to start

outputting data.

7 6 543210

EFMClkSel ModiﬁedEFM EnableLWRT LWRTOn GateClkOn DataSel.1 DataSel.0 PanicOn

BIT SYMBOL DESCRIPTION

7 EFMClkSel If EFMClkSel = 0, then EFM clock generator outputs normal XEFM frequency clock. If

EFMClkSel = 1, then EFM clock generator outputs double frequency XEFM clock.

6 ModiﬁedEFM If ModiﬁedEFM = 0, then normal EFM output. If ModiﬁedEFM = 1, then all ‘0’ output

symbols are increased in length by one bit.

5 EnableLWRT If EnableLWRT = 0, then LaserOn is off. If EnableLWRT = 1, then LaserOn will be set

when WriteOn1 is turned on.

4 LWRTOn If LWRTOn = 0, then LaserOn determined by EnableLWRT bit. If LWRTOn = 1, then

LaserOn output is enabled unconditionally.

3 GateClkOn If GateClkOn = 0, then XEFM clock is on if WriteOn2 is set. If GateClkOn = 1, then

XEFM clock is gated on unconditionally.

2 DataSel.1 These 2 bits along with the DataSel.2 bit in register EFMCON2 select the output data

format; see Table 119.

1 DataSel.0 0 PanicOn If PanicOn = 1, the Panic input is enabled. LaserOn will be disabled immediately when

the PANIC pin (pin 27) is logic 1.

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7.15.3 EFM MODULATOR CONFIGURATION REGISTER 2 (EFMMODCONFIG2))

Table 116 EFM Modulator Conﬁguration Register 2 (address 3EH) - WRITE

Table 117 Description of EFMModConﬁg2 bits

Table 118 Control of the XEFM output

Table 119 Selection of output data format

76543210

−−−−−TIM2Mode TIM2ClkOn DataSel.2

BIT SYMBOL DESCRIPTION

7to3 − These 5 bits are reserved.

2 TIM2Mode These 2 bits control the XEFM output; see Table 118. 1 TIM2ClkOn 0 DataSel.2 This bit along with the DataSel.1 and DataSel.0 bits in register EFMModConﬁg select

the output data format; see Table 119.

TIM2Mode TIM2ClkOn

0 X XEFM is operated according to GateClkOn bit setting in the EFMCON register

(address 3DH).

1 0 XEFM output is not inﬂuenced by LaserOn/WriteOn and is off. 1 1 XEFM is gated on.

DataSel.2 DataSel.1 DataSel.0 OUTPUT DATA FORMAT

0 0 0 hold data output at zero 0 0 1 output normal data 0 1 0 output I3 pattern 0 1 1 output I11 pattern 1 0 1 output special OPC pattern 3-3-4-4-5-5-6-6-7-7

X X X All other settings are reserved.

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7.16 The EFM clock generator

TheEFM clockgenerator willproduce the recordingclock basedon one ofthree referencesources. Therearefive stages to the function. The first selects the reference source using a multiplexer. The next stage is a digital PLL to up-multiply the reference source. The source will determine the base frequency output by the PLL, whilst a position error signal is used to alter the frequency sothat the position errortends to zero. Next,an analog PLL isused to up-multiply theoutput from the digital PLL. The output of the analog PLL is then multiplexed with an external source to allow the EFM clock generator to be bypassed completely. Finally, a programmable divider is used to enable the clock output, XEFM, to be doubled producing XEFM_2.

handbook, full pagewidth

MGR808

DIGITAL

PLL

MUX

W441

WCLK

Sysclk/192

MUX

XError

Fifo filling

Sysclk

Config Data

MUX XEFM

PROGRAMMABLE

DIVIDER

ANALOG

PLL

INTEGRATOR

Fig.18 EFM PLL block diagram.

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7.16.1 EFM CLOCK CONFIGURATION REGISTER 1 (EFMCLOCKCONF1)

Table 120 EFM Clock Conﬁguration Register 1 (address 34H) - WRITE

Table 121 Description of EFMClockConf1 bits

Table 122 Selection of PLL bandwidth

Table 123 Selection of analog PLL output divisor

76543210

DPLLBW.2 DPLLBW.1 DPLLBW.0 Bypass Div.2 Div.1 Div.0 −

BIT SYMBOL DESCRIPTION

7 DPLLBW.2 These 3 bits select the digital PLL bandwidth; see Table 122. 6 DPLLBW.1 5 DPLLBW.0 4 Bypass When Bypass = 0, then bypass is off. When Bypass = 1, then PLL is bypassed and the

XEFM clock is derived from the system clock.

3 Div.2 These 3 bits select the analog PLL output divisor; see Table 123. 2 Div.1 1 Div.0 0 − This bit is reserved.

DPLLBW.2 DPLLBW.1 DPLLBW.0 PLL BANDWIDTH

0 0 0 Digital PLL bandwidth is 400 Hz. 0 0 1 Digital PLL bandwidth is 200 Hz. 0 1 0 Digital PLL bandwidth is 100 Hz. 0 1 1 Digital PLL bandwidth is 50 Hz. 1 0 0 Digital PLL bandwidth is 25 Hz.

Div.2 Div.1 Div.0 PLL DIVISOR

0 0 0 Analog PLL output is divided by 1 (XEFM_2 output is not available). 0 0 1 Analog PLL output is divided by 2. 0 1 0 Analog PLL output is divided by 3 (XEFM_2 output is not available). 0 1 1 Analog PLL output is divided by 4. 1 0 0 Analog PLL output is divided by 6. 1 0 1 Analog PLL output is divided by 8. 1 1 0 Analog PLL output is divided by 12. 1 1 1 Analog PLL output is divided by 16.

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7.16.2 EFM CLOCK CONFIGURATION REGISTER 2 (EFMCLOCKCONF2)

Table 124 EFM Clock Conﬁguration Register 2 (address 35H) - WRITE

Table 125 Description of EFMClockConf2 bits

Table 126 Selection of PLL frequency source

Table 127 Selection of position source

Table 128 Digital PLL multiplication factor

76543210

FreqSrc.1 FreqSrc.0 PosSrc.1 PosSrc.0 DPLLMF.3 DPLLMF.2 DPLLMF.1 DPLLMF.0

BIT SYMBOL DESCRIPTION

7 FreqSrc.1 These 2 bits select the frequency source for the PLL; see Table 126. 6 FreqSrc.0 5 PosSrc.1 These 2 bits select the position source; see Table 127. 4 PosSrc.0 3 DPLLMF.3 These 4 bits select the multiplication factor for the PLL; see Table 128 2 DPLLMF.2 1 DPLLMF.1 0 DPLLMF.0

FreqSrc.1 FreqSrc.0 FREQUENCY SOURCE

0 0 PLL locks to W441. Use this signal as frequency source to lock EFM frequency to disc

wobble.

0 1 PLL locks to WCLK. Use this signal if encoding must slave to the word clock of some

external I

S/EBU input. 1 0 PLL locks to sysclock/192 1 1 This setting is reserved.

PosSrc.1 PosSrc.0 POSITION SOURCE

0 0 No position error used. 1 0 Position source is XError<6:0>. Use this source if EFM clock is locked to ATIP carrier

(W441). 1 1 Position source is FifoFill<6:0>. Use this source is EFM clock is locked to WCLK signal. X X All other combinations are reserved.

DPLLMF.3 DPLLMF.2 DPLLMF.1 DPLLMF.0 DIGITAL PLL MULTIPLICATION FACTOR

0000294 0001196 0010147 010098 0 1 1 0 73.5 100049 1 0 1 0 36.75

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7.16.3 EFM CLOCK CONFIGURATION REGISTER 3 (EFMCLOCKCONF3) This is a dual-function register, the specific function is controlled by the state of bit 7. The integrator of the PI controller can be preset by writing to this register with the MSB set to logic 0. The value written

is interpreted as a signed value. The current integrator value can be read back via this register. To program the Kp and Ki values, bit 7 of the EFMClockConf3 register must be logic 1. To determine the time constant of the I-branch, the sample frequency of the integrator must be known. This sample

frequency is programmed via register EFMClockConf4 when the MSB is logic 1. The LSB is actually the switch to turn off the integrator path. The value in the integrator is not affected by programming this bit, so the integrator can be used as offset when Ki is logic 0.

Table 129 EFM Clock Conﬁguration Register 3 (address 36H) - READ/WRITE

Table 130 Selection of coefﬁcient K

Table 131 Selection of the coefﬁcient K

76543210

0 IntegVal.6 IntegVal.5 IntegVal.4 IntegVal.3 IntegVal.2 IntegVal.1 IntegVal.0 1 Kp.2 Kp.1 Kp.0 Ki.3 Ki.2 Ki.1 Ki.0

Kp.2 Kp.1 Kp.0 COEFFICIENT K

0004 0012 0101

0110.5 1 0 0 0.25

Ki.3 Ki.2 Ki.1 Ki.0 COEFFICIENT K

00000 00011

00110.5 0 1 0 1 0.25 0 1 1 1 0.125 1 0 0 1 0.0625 1 0 1 1 0.03125 1 1 0 1 0.015625 1 1 1 1 0.0078125

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7.16.4 EFM CLOCK CONFIGURATION REGISTER 4 (EFMCLOCKCONF4)

This is a dual-function register, the specific function is controlled by the state of bit 7.

The sample rate of the integrator may be programmed by writing to this register when the MSB is set to a logic 1. Higher sample rates let the integrator work faster. This is effectively the same as increasing the Ki value.

Good stability and criticaldamping ofthe integratorcan be expected with a sample rate of1/98EFM frames and Ki= 2-7at n = 2.

Theposition errorset-pointmay beprogrammedby writing to thisregister when theMSB is set to a logic 0. Aposition error setpoint between −64 and 63 can be programmed using the remaining 7 bits.

On reset this register has the value −8.

Table 132 EFM Clock Conﬁguration Register 4 (address 37H) - WRITE

Table 133 Selection of the integrator sample rate

Table 134 EFMPLL settings information

7 6 5432 1 0

1 − −−−−Samplerate.1 Samplerate.0 0 PosErr.6 PosErr.5 PosErr.4 PosErr.3 PosErr.2 PosErr.1 PosErr.0

Samplerate.1 Samplerate.0 SAMPLE RATE

0 0 392 0 1 196 1098 1149

INTENDED

ENCODER SPEED

DIGITAL

MULTIPLICATION

FACTOR

ANALOG PLL

MULTIPLICATION

FACTOR

PROGRAMMABLE

DIVIDER FACTOR

POSITION ERROR

TIME CONSTANT

n = 1 294 4 12 2581 ms n = 2 147 4 6 635 ms n = 4 98 4 4 160 ms

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7.17 The Wobble processor

The Wobble processor is a critical part of the recording process, and performs two main functions:

• To extract the ATIP data from the wobble signal

• To control the linear disc speed during recording.

The Wobble processor comprises four functions, a front-end ADC,a digital PLL, the ATIPbit detector andthe ATIP data read interface.

7.17.1 THE WOBBLE ADC FUNCTION

This converts the ATIP signal (WIN) to the digital domain.

7.17.2 THE WOBBLE PLL

ThePLL hasaPI typeloopfilter. Thebandwidthof theloop andthe integratorareprogrammable bythe user. Theuser can also read andwrite thePLL frequency,the write mode is available to aid PLL lock-in. The block outputs a pulse signal at 44.1 kHz, which is phase modulatedby the ATIP signal.

7.17.3 THE ATIP BIT DETECTOR This function extracts the ATIP information bits from the

ADC output and passes them to the ATIP read interface block. It also outputs the ATIPSync pulse. In order to protect the ATIPSyncs, a flywheel mechanism exists to interpolate ATIPSyncs if none are detected. This is a requirement to ensure thatthe recordingprocess doesnot get corrupted.

7.17.4 THE ATIP READ INTERFACE TheATIP datais readby the on-chipmicroprocessor. Data

availability can be checked by polling the ATIPReady bit in the ATIP Status Register. The microprocessor must read both the ATIPDataand ATIPDataEnd registers in orderto complete the data read process correctly. If this does not happen, a status bit is set to warn the microcontroller.

7.17.5 WOBBLE CONFIGURATION REGISTER 1(WOBBLECONFIG1)

This is adual-function register, the specific function is determined by the state of bit 7. When bit 7 = 0, the function is as described in Tables 135 to 138. When bit 7 = 1, the function is as described in Tables 135 and 139.

Table 135 Wobble Conﬁguration Register 1 (address 27H) - WRITE

Table 136 Description of WobbleConﬁg1 bits, bit 7 = 0

76543210

0 0 PLLIntBW.2 PLLIntBW.1 PLLIntBW.0 LoopBW.2 LoopBW.1 LoopBW.0 1 ATIPhold − WinWidth.4 WinWidth.3 WindWidth.2 WindWidth.1 WindWidth.0

BIT SYMBOL DESCRIPTION

5 PLLIntBW.2 These 3 bits select the integrator bandwidth; see Table 137. 4 PLLIntBW.1 3 PLLIntBW.0

2 to 0 LoopBW<2:0> These 3 bits select the loop bandwidth; see Table 138. The PLL

bandwidth is proportional to the system clock frequency and determines the following performance points:

• Loop bandwidth should be approximately equal to bit rate to get good detector performance

• Loop bandwidth depends on ATIP signal scaling. Current figures are valid for −6 dB scaling

• PLL lock-in range is approximately equal to loop bandwidth.

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Table 137 Selection of integrator bandwidth

Table 138 Selection of loop bandwidth

Table 139 Description of WobbleConﬁg1 bits, bit 7 = 1

PLLIntBW.2 PLLIntBW.1 PLLIntBW.0 INTEGRATOR BANDWIDTH

0 0 0 1.32 kHz for 4.26 MHz system clock 0 0 1 662 Hz for 4.26 MHz system clock 0 1 0 331 Hz for 4.26 MHz system clock 0 1 1 166 Hz for 4.26 MHz system clock 1 0 0 83 Hz for 4.26 MHz system clock 1 0 1 42 Hz for 4.26 MHz system clock 1 1 0 21 Hz for 4.26 MHz system clock 1 1 1 10 Hz for 4.26 MHz system clock

LOOPBW.2 LOOPBW.1 LOOPBW.0 LOOP BANDWIDTH

0 0 0 10.6 kHz for 4.26 MHz system clock 0 0 1 5.3 kHz for 4.26 MHz system clock 0 1 0 2.65 kHz for 4.26 MHz system clock 0 1 1 1.32 kHz for 4.26 MHz system clock 1 0 0 662 Hz for 4.26 MHz system clock 1 0 1 331 Hz for 4.26 MHz system clock 1 1 0 166 Hz for 4.26 MHz system clock 1 1 1 83 Hz for 4.26 MHz system clock

BIT SYMBOL DESCRIPTION

6 ATIPhold When ATIPhold = 1, then Wobble PLL in Hold mode. 5 − This bit is reserved. 4 WinWidth.4 Determines the half of the widthof the windowwhere ATIP syncs arebeing accepted for

resynchronization. The unit of WindowWidth is ATIP clock pulses. As an ATIP frame consists of 42 ATIP clock pulses, the maximum value of WindowWidth that can be programmed is 21. The reset value is logic 0. The OutOfWindow state can be detected by reading the ATIPStatus register.

3 WinWidth.3 2 WinWidth.2 1 WinWidth.1 0 WinWidth.0

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Channel encoder/decoder CDR60 SAA7392

7.17.6 WOBBLE CONFIGURATION REGISTER 2(WOBBLECONFIG2)

Table 140 Wobble Conﬁguration Register 2 (address 28H) - WRITE

Table 141 Description of WobbleConﬁg2 bits

Table 142 Selection of the PLL high/low-pass bandwidth

76543210

−−PLLLBW.2 PLLLBW.1 PLLLBW.0 PLLHBW.2 PLLHBW.1 PLLHBW.0

BIT SYMBOL DESCRIPTION

7 − These 2 bits are reserved. 6 − 5 PLLLBW.2 These 3 bits select the PLL low-pass bandwidth; see Table 142. 4 PLLLBW.1 3 PLLLBW.0 2 PLLHBW.2 These 3 bits select the PLL high-pass bandwidth; see Table 142. 1 PLLHBW.1 0 PLLHBW.0

PLLLBW.2 PLLLBW.1 PLLLBW.0

HIGH/LOW-PASS BANDWIDTH

PLLHBW.2 PLLHBW.1 PLLHBW.0

0 0 0 43 kHz for 4.26 MHz system clock 0 0 1 21.5 kHz for 4.26 MHz system clock 0 1 0 10.7 kHz for 4.26 MHz system clock 0 1 1 5.4 kHz for 4.26 MHz system clock 1 0 0 2.7 kHz for 4.26 MHz system clock 1 0 1 1.35 kHz for 4.26 MHz system clock 1 1 0 670 Hz for 4.26 MHz system clock 1 1 1 350 Hz for 4.26 MHz system clock

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7.17.7 ATIP STATUS REGISTER (ATIPSTATUS)

Table 143 ATIP Status Register (address 29H) - READ

Table 144 Description of ATIPStatus bits

7.17.8 W

OBBLE FREQUENCY REGISTER 1(WOBBLEFREQ1)

Table 145 Wobble Frequency Register 1 (address 2AH) - WRITE/READ

Table 146 Description of WobbleFreq1 bits

7.17.9 WOBBLE FREQUENCY REGISTER 2(WOBBLEFREQ2)

Table 147 Wobble Frequency Register 2 (address 2BH) - READ/WRITE

Table 148 Description of WobbleFreq2 bits

76543210

ATIPReady Busy CRCOK −−−SyncErr OIS

BIT SYMBOL DESCRIPTION

7 ATIPReady If ATIPReady = 0, then ATIP data isnot ready. IfATIPReady = 1, thenATIP datais ready

for read. Can also be an interrupt source.

6 Busy If Busy = 0, then ATIP data is not being read. If Busy = 1, then sub-CPU is busyreading

ATIP data. 5 CRCOK If CRCOK = 0, then CRC check is not OK. If CRCOK = 1, then CRC check is OK. 4 − These 3 bits are reserved. 3 − 2 − 1 SyncErr If SyncErr = 1,then detected syncis not in-phasewith the interpolated sync. Resync will

be done on next detected sync. 0 OIS If OIS = 1, then sync has been interpolated, no detected sync.

76543210

PLLFreq.15 PLLFreq.14 PLLFreq.13 PLLFreq.12 PLLFreq.11 PLLFreq.10 PLLFreq.9 PLLFreq.8

BIT SYMBOL DESCRIPTION

7 to 0 PLLFreq<15:8> These 8 bits form the most signiﬁcant byte of the PLL frequency.

76543210

PLLFreq.7 PLLFreq.6 PLLFreq.5 PLLFreq.4 PLLFreq.3 PLLFreq.2 PLLFreq.1 PLLFreq.0

BIT SYMBOL DESCRIPTION

7 to 0 PLLFreq<7:0> These 8 bits form the least signiﬁcant byte of the PLL frequency.

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7.17.10 ATIP DATA REGISTER (ATIPDATA) The upper 16 bits of the ATIP data can be obtained from this register by carrying out consecutive read operations.

Table 149 ATIP Data Register (address 2CH) - READ

Table 150 Description of ATIPData bits

7.17.11 ATIP DATA END REGISTER (ATIPDATAEND)

Table 151 ATIP Data End Register (address 2DH) - READ

Table 152 Description of ATIPDataEnd bits

7.17.12 WOBBLE PEAK STATUS REGISTER (WOBBLESTATUS)

Table 153 Wobble Peak Status Register (address 2EH) - READ

Table 154 Description of WobbleStatus bits

7.17.13 ATIP ERROR REGISTER (ATER) This register is an unbuffered counter and is incremented on every ATIP code CRC error. When the register reaches 255

it will hold and is reset by being read.

Table 155 ATIP Error Register (address 38H) - READ

76543210

ATIPData.23 ATIPData.22 ATIPData.21 ATIPData.20 ATIPData.19 ATIPData.18 ATIPData.17 ATIPData.16 ATIPData.15 ATIPData.14 ATIPData.13 ATIPData.12 ATIPData.11 ATIPData.10 ATIPData.9 ATIPData.8

BIT SYMBOL DESCRIPTION

7 to 0 ATIPData<23:16> most signiﬁcant byte of ATIP data 7 to 0 ATIPData<15:8> penultimate byte of ATIP data

76543210

ATIPData.7 ATIPData.6 ATIPData.5 ATIPData.4 ATIPData.3 ATIPData.2 ATIPData.1 ATIPData.0

BIT SYMBOL DESCRIPTION

7 to 0 ATIPData<7:0> least signiﬁcant byte of ATIP data

76543210

WPPV.7 WPPV.6 WPPV.5 WPPV.4 WPPV.3 WPPV.2 WPPV.1 WPPV.0

BIT SYMBOL DESCRIPTION

7 to 0 WPPV<7:0> Peak value of the bit signal recovered by the Wobble processor.

76543210

ATER.7 ATER.6 ATER.5 ATER.4 ATER.3 ATER.2 ATER.1 ATER.0

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8 LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 60134).

Notes

1. All pad driver supply connections (V

DDE

) and analog and digital core/pad ring supply connections (V

DDA

and V

DDD

)

must be made externally to the same power supply.

2. All VSS pins must be connected to the same external voltage.

3. (VDD+ 0.5) or 4.1 V depending on which one is lower.

4. Equivalent to discharging a 100 pF capacitor via a 1.5 kΩ series resistor with a rise time of 15 ns.

5. Equivalent to discharging a 200 pF capacitor via a 0.75 µH series inductor.

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

DDE

supply voltage - pad output drivers notes 1 and 2 −0.5 +4.0 V

DDD

supply voltage - core/pad ring notes 1 and 2 −0.5 +4.0 V

DDA

supply voltage - analog notes 1 and 2 −0.5 +4.0 V

i(max)

maximum input voltage (any input) −0.5 +5.0 V

output voltage (any output) −0.5 note 3 V

∆V

DDD

voltage difference between V

DDA

and V

DDD

− 0.25 V

output current (continuous) − 20 mA

DC input diode current (continuous) − 20 mA

amb

operating ambient temperature 0 +70 °C

stg

storage temperature −55 +125 °C

es1

electrostatic handling note 4 −1000 +1000 V

es2

electrostatic handling note 5 −100 +100 V

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9 OPERATING CHARACTERISTICS

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply

DDD

supply voltage (core/pad ring) 3.0 3.3 3.6 V

DDA

supply voltage (analog) 3.0 3.3 3.6 V

DDE

supply voltage (pad output drivers) 3.0 3.3 3.6 V

supply current − 200 − mA

Digital inputs

SCL (CMOS) V

LOW-level input voltage −−0.3V

HIGH-level input voltage 0.7V

− 5.0 V

input leakage current Vi= 0 to V

−10 − +10 µA

input capacitance −−10 pF TEST1, TEST2, OTD, MUXSWI, PANIC, PORE, WRI, RDI, ALE, CSI, PCAIN, DATAI, SUB, SFSY, T2 AND T1 V

LOW-level input voltage −−0.8 V V

HIGH-level input voltage 2.0 − 5.0 V I

input leakage current Vi= 0 to V

−10 − +10 µA

input capacitance −−10 pF

Digital outputs

W441, ATPSYC, CL1, INT, STOPCK, V4, EBUOUT, SYNC, FLAG, DATAO, RCK, LASERON, XEFM, EFMDATA, CFLG AND MEAS1

LOW-level output voltage IOL=4mA −−0.4 V V

HIGH-level output voltage IOH= −4 mA 0.85V

−−V

load capacitance −−20 pF t

output rise time 0.4 to (VDD− 0.4);

CL=20pF

−−20 ns

output fall time (VDD− 0.4) to 0.4;

CL=20pF

−−20 ns

MOTO1 (3-STATE) V

LOW-level output voltage IOL=4mA −−0.4 V V

HIGH-level output voltage IOH= −4 mA 0.85V

−−V

load capacitance −−20 pF t

output rise time 0.4 to (VDD− 0.4);

CL=20pF

−−20 ns

output fall time (VDD− 0.4) to 0.4;

CL=20pF

−−20 ns

3-state leakage current Vi= 0 to V

−10 − +10 µA

Digital I/O

DA7 TO DA0, WCLK, BCLK AND MOTO2/T3 V

LOW-level input voltage −−0.3V

HIGH-level input voltage 0.7V

− 5.0 V

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3-state leakage current Vi= 0 to V

−10 − +10 µA

input capacitance −−10 pF V

LOW-level output voltage IOL=4mA −−0.4 V V

HIGH-level output voltage IOH= −4 mA 0.85V

−−V

load capacitance −−20 pF t

output rise time 0.4 to (VDD− 0.4);

CL=20pF

−−20 ns

output fall time (VDD− 0.4) to 0.4;

CL=20pF

−−20 ns

SDA (I2C-BUS) V

LOW-level input voltage −−0.3V

HIGH-level input voltage 0.7V

− 5.0 V

3-state leakage current Vi= 0 to V

−10 − +10 µA

input capacitance −−10 pF V

LOW-level output voltage IOL=4mA 0 − 0.4 V I

LOW-level output current −−8mA C

load capacitance −−20 pF t

output fall time CL=20pF −−250 ns

Crystal oscillator

XTLI (INPUT) V

LOW-level input voltage −−0.3V

HIGH-level input voltage 0.7V

− 5.0 V

input leakage current −10 − +10 µA C

input capacitance −−−pF XTLO (OUTPUT) f

xtal

crystal frequency 4 8 − MHz g

mutual conductance f = 100 kHz −−−mA/V G

small signal voltage gain Gv= gm.R

−−−V/V

feedback capacitance −−−pF C

output capacitance −−−pF

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

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9.1 ADC and AGC parameters Table 156 ADC parameters

Table 157 AGC parameters

PARAMETER VALUE COMMENTS

Resolution 8-bit Data format Simple Binary Maximum sample

frequency

70 MS/s nominal rate 50 MS/s

SINAD >26 dB 17.5 MHz signal − 12 dB down on ADC full scale, 70 MS/s sample rate DNL −1.0/+1.0 LSB 70 MS/s; 1 MHz input INL −2.0/+2.0 LSB 70 MS/s; 1 MHz input Power dissipation <100 mW Input range 1.47 − 2.91 V Voltage reference 2.9 V top ladder reference Bias current 100 µA provided externally Bandwidth 35 MHz −3 dB (−0.5 effective bits) Clock frequency 70 MHz deﬁnes sample rate Clock duty cycle 40 to 60% Clock jitter ±200 ps for 6.5-bit accuracy, f = 17.5 MHz

PARAMETER VALUE COMMENTS

Output level 1.4 V(p-p) Gain range −2.69 to +11.25 dB approx. linear in dBs Gain step 1.1 dB Bandwidth 35 MHz −3 dB point Phase linearity 0.6 ns in bandwidth of 35 MHz Resolution 5-bit SNR 50 dB in bandwidth of 35 MHz THD <−35 dB f = 17.5 MHz; V

out(p-p)

= 1.44 V; ADC load Input range 0.39 to 1.96 V peak-to-peak value Input impedance 7.57 kΩ nominal, at HIN Offset voltage <30 mV

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10 APPLICATION INFORMATION

10.1 Write start control of encoder in CD-ROM mode

In CD-ROM mode, the CDR60 is intended to operate in lock-to-disc mode during write. When writing is stopped by theEncode ControlBlock,the dataflow through thedevice will also stop. All pointers will stop incrementing and the BCLK clock ofthe I2S input interfacewill stop. As a result, the buffer manager will stop outputting data to the CDR60.

Write start will be given while the encoder is in this ‘hot stand-by’ state, with all pointers stopped and all clocks stopped. It is extremely important to start the write from a precisely definedinitial state. Hence, a ‘cold start’ must be executed prior to the start of the write. This is as follows:

1. Start the CDR servo. Start the spindle motor servo in ‘tacho’ mode. Start focus and radial servo loops.

2. Program the Wobble processor to capture ATIP time code data from the disc. (Lock-in the wobble PLL).

3. Jump to a suitable time prior to the ‘record start address’. (e.g. 10 frames.)

4. Switch motorservo to ATIP signal. Allow enough time for motor speed to stabilize before start of write. Use motor monitor and wobble monitor functions for this.

5. Lock EFM PLL to crystal clock.

6. Program encoder in ‘CD, encode, flush mode’. Program the EFM modulator to ‘WriteOn1, WriteOn2 off’ mode. This is the reset state.

7. Reset the block encoder.

8. Program the encoder to ‘CD encode, normal mode’. The encoder will fill itsinternal tables,but dataflow will stop after a while, because no EFM data is output.

9. Program SubPresetCount and EFMPresetCount registers.

10. Initialize the subcode insert block.

11. Read ATIP time again.

12. Start encoding after suitable delay by writing to EncodeWriteControl. Turn on both WriteOn1 and WriteOn2.

10.2 Write start control of encoder in Audio mode

In this mode the data flow is fixed speed as it is not possible to stop the data stream from the ADC to the CDR60. Because of this, a ‘hot start’ is needed.

1. Start the CDR servo. Start the spindle motor servo in Tacho mode. Start focus and radial servo loops.

2. Program the Wobble processor to capture ATIP time code from the disc. (Lock-in the wobble PLL).

3. Jump to a suitable time prior to the ‘record start address’ (e.g. 10 frames).

4. Switch motorservo to ATIP signal. Allow enough time for motor speed to stabilize before start of write. Use motor monitor and wobble monitor functions for this.

5. Lock EFM PLL to I2S bit clock and FIFO filling.

6. Program encoder in ‘CD, encode, flush mode’. Program EFM modulator to WriteOn1 off and WriteOn2 on mode. Program input interface to digital silence.

7. Program the encoder to ‘CD, encode, normal mode’. The encoderwill start streaming digitalzero data. The operationof PLLlocked toI2Sbit clockand FIFOfilling will regulate the FIFO filling toward a nominal value.

8. Program SubPresetCount and EFMPresetCount registers.

9. Initialize the subcode insert block.

10. Read ATIP time again.

11. Start encoding after suitable delay by writing to EncodeWriteControl. Turn on WriteOn1.

10.3 Start-up of encode in ﬂow-control operation

1. Reset the encoder. Switch LaserOn off, switch WriteOn2 off and switch encoder to ‘flush’ mode.

2. Preset the device. a) Preset the serial input format b) Preset the subcode insertion block c) Preset the EFM modulator block d) Preset the EFM clock generator.

3. Letthe discrun at the correct speed,let theEFM clock generator produce the correct clock.

4. At this stage, the device is in Standby mode. Everything is initialized, the encoder is still in ‘reset’ state and the I2S input clock is stopped. The encoder cannot accept data because it is reset. Because flow control is enabled the clock is stopped.

5. Initialize the block encoder pointers to point to the correct data from where encoding should start.

6. Switch the encoder from‘flush’ to ‘encodeplay’ mode. At this point the encoder starts reading data from the serialinterface butstops againafter a fewmilliseconds because the its FIFO gets filled as the data out to the EFM modulator is still blocked.

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7. When the correct start address is found on the disc, the LaserOn and WriteOn2 signals are switchedon at the same time. As a result data flow in the encoder starts while data is written to the disc.

10.4 Start-up of encoder in synchronous stream

mode

In synchronous stream mode operation is different because the serial input stream cannot be gated off.

1. Reset the encoder. Switch LaserOn off, Switch WriteOn2 off and switch encoder to ‘flush’ mode.

2. Preset the device. a) Preset the serial input format b) Preset the subcode insertion block c) Preset the EFM modulator block d) Preset the EFM clock generator. The EFM clock

generator must be programmed to slave to the incoming serial stream.

3. Letthe disc run at therequired speed.Make the motor servo slave to the W441 wobble clock.

4. Switch on WriteOn2. This signal must be switched on to allow data to leave the encoder when it enters it. (Important to avoid overflow.)

5. At this stage everything is initialized. The inputstream is running but doesnot enterthe encoder because it is still in the ‘reset’ state. The output stream is running too at the samespeed asthe input speed because the EFM clock generator is setup like this.

6. The encoder is switched from ‘flush’ to ‘encode play’ mode. At this point the data stream starts. Data from the serial in interface enters the encoder while data is read out from it at approximately the same speed via the EFM modulator. The FIFO will not overflow. The data is discarded and not written to the disc because LaserOn is still switch off.

7. When the correct start address is found on the disc LaserOn is switched on allowing data stream to the disc.

10.5 OperatingCDR60 in CAV mode, ﬂow control on

input stream

For very high-speed operation it is possible to lock the EFM clock to the ATIP wobble carrier. To do this W441 must be selected as the clock source while the position erroris takenfrom XError. TheXError signalgives the time difference between the ATIPSync and the QSync. Programming the EFM clock generator like this with a multiplicationfactor of 98will producean EFMclock thatis synchronous with the ATIP carrier. It can be used to write data in lock-to-disc mode.

10.6 Operating in CLV Mode, Flow Control on Input

Stream

Simply bypass the EFM PLL and use the system clock as EFM source.

10.7 Operating in CLV Mode, Synchronous Stream

Operation

When an audio stream is input to the CDR60 encoder the EFM clock mustlock tothe serialinput WCLKclock signal. The position error is taken from the FIFOFill signal. This will produce an EFM clock that is 98 times the WCLK frequency.

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11 PACKAGE OUTLINE

UNIT

max.

A1A2A3b

(1)

Zywv θ

REFERENCES

OUTLINE

VERSION

EUROPEAN

PROJECTION

ISSUE DATE

IEC JEDEC EIAJ

1.6

0.16

0.04

1.5

1.3

0.25

0.27

0.13

0.18

0.12

12.1

11.9

0.5

14.15

13.85

1.45

1.05

7 0

o o

0.15 0.10.21.0

DIMENSIONS (mm are the original dimensions)

Note

1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.

0.75

0.30

SOT315-1 136E15 MS-026

99-12-27 00-01-19

(1) (1)(1)

12.1

11.9

14.15

13.85

1.45

1.05

detail X

(A )

v M

60 41

pin 1 index

w M

0 5 10 mm

scale

LQFP80: plastic low profile quad flat package; 80 leads; body 12 x 12 x 1.4 mm

SOT315-1

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Philips Semiconductors Preliminary speciﬁcation

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12 SOLDERING

12.1 Introduction to soldering surface mount packages

Thistext givesavery briefinsightto acomplextechnology. A more in-depth account of soldering ICs can be found in our

“Data Handbook IC26; Integrated Circuit Packages”

(document order number 9398 652 90011). There is no soldering method that is ideal for all surface

mount IC packages. Wave soldering is not always suitable for surface mount ICs, or for printed-circuit boards with high population densities. In these situations reflow soldering is often used.

12.2 Reﬂow soldering

Reflow soldering requires solder paste (a suspension of fine solder particles, flux and binding agent) to be applied tothe printed-circuitboard byscreenprinting, stencillingor pressure-syringe dispensing before package placement.

Several methods exist for reflowing; for example, infrared/convection heating in a conveyor type oven. Throughput times (preheating, solderingand cooling)vary between 100 and 200 seconds depending on heating method.

Typical reflow peak temperatures range from 215 to 250 °C. The top-surface temperature of the packages should preferable be kept below 230 °C.

12.3 Wave soldering

Conventional single wave soldering is not recommended forsurface mountdevices(SMDs) orprinted-circuit boards with a high component density, as solder bridging and non-wetting can present major problems.

To overcome these problems the double-wave soldering method was specifically developed.

If wave soldering isused the following conditions must be observed for optimal results:

• Use a double-wave soldering method comprising a turbulent wavewith high upward pressure followed by a smooth laminar wave.

• For packages with leads on two sides and a pitch (e): – larger than or equal to 1.27 mm, the footprint

longitudinal axis is preferred to be parallel to the transport direction of the printed-circuit board;

– smaller than 1.27 mm, the footprint longitudinal axis

must be parallel to the transport direction of the printed-circuit board.

The footprint must incorporate solder thieves at the downstream end.

• Forpackages withleadson foursides, thefootprint must be placedat a 45° angleto the transport direction of the printed-circuit board. The footprint must incorporate solder thieves downstream and at the side corners.

During placement and beforesoldering, thepackage must be fixed with a droplet of adhesive. The adhesive can be applied by screen printing, pin transfer or syringe dispensing. The package can be soldered after the adhesive is cured.

Typical dwell time is 4 seconds at 250 °C. A mildly-activated flux will eliminate the need for removal of corrosive residues in most applications.

12.4 Manual soldering

Fix the component by first soldering two diagonally-opposite end leads. Use a low voltage (24 V or less) soldering iron applied to the flat part of the lead. Contact time must be limited to 10 seconds at up to 300 °C.

When using a dedicated tool, all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320 °C.

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12.5 Suitability of surface mount IC packages for wave and reﬂow soldering methods

Notes

1. All surface mount (SMD) packages are moisture sensitive. Depending upon the moisture content, the maximum temperature (with respect to time) and body size of the package, there is a risk that internal or external package cracks may occur due to vaporization of the moisture in them (the so called popcorn effect). For details, refer to the Drypack information in the

“Data Handbook IC26; Integrated Circuit Packages; Section: Packing Methods”

2. These packages are not suitable for wave soldering as a solder joint betweenthe printed-circuit board and heatsink (at bottom version) can not be achieved, and as solder may stick to the heatsink (on top version).

3. If wave soldering is considered, then the package must be placed at a 45° angle to the solder wave direction. The package footprint must incorporate solder thieves downstream and at the side corners.

4. Wave soldering isonly suitable for LQFP, TQFP and QFP packages with a pitch (e) equal to or larger than 0.8 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.65 mm.

5. Wave soldering is onlysuitable for SSOPand TSSOP packages with apitch (e) equalto or larger than 0.65 mm;it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.5 mm.

PACKAGE

SOLDERING METHOD

WAVE REFLOW

(1)

BGA, LFBGA, SQFP, TFBGA not suitable suitable HBCC, HLQFP, HSQFP, HSOP, HTQFP, HTSSOP, SMS not suitable

(2)

suitable

PLCC

(3)

, SO, SOJ suitable suitable

LQFP, QFP, TQFP not recommended

(3)(4)

suitable

SSOP, TSSOP, VSO not recommended

(5)

suitable

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13 DEFINITIONS

14 LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selling these products for use in suchapplications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale.

15 PURCHASE OF PHILIPS I

C COMPONENTS

Data sheet status

Objective speciﬁcation This data sheet contains target or goal speciﬁcations for product development. Preliminary speciﬁcation This data sheet contains preliminary data; supplementary data may be published later. Product speciﬁcation This data sheet contains ﬁnal product speciﬁcations.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the speciﬁcation is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the speciﬁcation.

Purchase of Philips I

C components conveys a license under the Philips’ I2C patent to use the components inthe I2C systemprovided the systemconforms to theI2C specificationdefined by Philips. This specification can be ordered using the code 9398 393 40011.

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NOTES

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NOTES

Page 76

The information presented in this document does not form part of any quotationor contract, is believed to be accurate and reliableand may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights.

Internet: http://www.semiconductors.philips.com

2000

Philips Semiconductors – a w orldwide compan y

For all other countries apply to: Philips Semiconductors,

International Marketing & Sales Communications, Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825

Argentina: see South America Australia: 3 Figtree Drive, HOMEBUSH, NSW 2140,

Tel. +61 2 9704 8141, Fax. +61 2 9704 8139 Austria: Computerstr. 6, A-1101 WIEN, P.O. Box 213,

Tel. +43 1 60 101 1248, Fax. +43 1 60 101 1210 Belarus: Hotel Minsk Business Center, Bld. 3, r. 1211, Volodarski Str. 6,

220050 MINSK, Tel. +375 172 20 0733, Fax. +375 172 20 0773

Belgium: see The Netherlands Brazil: see South America Bulgaria: Philips Bulgaria Ltd., Energoproject, 15th floor,

51 James Bourchier Blvd., 1407 SOFIA, Tel. +359 2 68 9211, Fax. +359 2 68 9102

Canada: PHILIPS SEMICONDUCTORS/COMPONENTS, Tel. +1 800 234 7381, Fax. +1 800 943 0087

China/Hong Kong: 501 Hong Kong Industrial Technology Centre, 72 Tat Chee Avenue, Kowloon Tong, HONG KONG, Tel. +852 2319 7888, Fax. +852 2319 7700

Colombia: see South America Czech Republic: see Austria Denmark: Sydhavnsgade 23, 1780 COPENHAGEN V,

Tel. +45 33 29 3333, Fax. +45 33 29 3905 Finland: Sinikalliontie 3, FIN-02630 ESPOO,

Tel. +358 9 615 800, Fax. +358 9 6158 0920 France: 51 Rue Carnot, BP317, 92156 SURESNES Cedex,

Tel. +33 1 4099 6161, Fax. +33 1 4099 6427 Germany: Hammerbrookstraße 69, D-20097 HAMBURG,

Tel. +49 40 2353 60, Fax. +49 40 2353 6300

Hungary: see Austria India: Philips INDIA Ltd, Band Box Building, 2nd floor,

254-D, Dr. Annie Besant Road, Worli, MUMBAI 400 025, Tel. +91 22 493 8541, Fax. +91 22 493 0966

Indonesia: PTPhilipsDevelopmentCorporation,SemiconductorsDivision, Gedung Philips, Jl. Buncit Raya Kav.99-100, JAKARTA 12510, Tel. +62 21 794 0040 ext. 2501, Fax. +62 21 794 0080

Ireland: Newstead, Clonskeagh, DUBLIN 14, Tel. +353 1 7640 000, Fax. +353 1 7640 200

Israel: RAPAC Electronics, 7 Kehilat Saloniki St, PO Box 18053, TEL AVIV 61180, Tel. +972 3 645 0444, Fax. +972 3 649 1007

Italy: PHILIPS SEMICONDUCTORS, ViaCasati, 23 - 20052MONZA (MI), Tel. +39 039 203 6838, Fax +39 039 203 6800

Japan: Philips Bldg 13-37, Kohnan 2-chome, Minato-ku, TOKYO 108-8507, Tel. +81 3 3740 5130, Fax. +81 3 3740 5057

Korea: Philips House, 260-199 Itaewon-dong, Yongsan-ku, SEOUL, Tel. +82 2 709 1412, Fax. +82 2 709 1415

Malaysia: No. 76 Jalan Universiti, 46200 PETALING JAYA, SELANGOR, Tel. +60 3 750 5214, Fax. +60 3 757 4880

Mexico: 5900 Gateway East, Suite 200, EL PASO, TEXAS 79905, Tel. +9-5 800 234 7381, Fax +9-5 800 943 0087

Middle East: see Italy

Netherlands: Postbus 90050, 5600 PB EINDHOVEN, Bldg. VB,

Tel. +31 40 27 82785, Fax. +31 40 27 88399 New Zealand: 2 Wagener Place, C.P.O. Box 1041, AUCKLAND,

Tel. +64 9 849 4160, Fax. +64 9 849 7811 Norway: Box 1, Manglerud 0612, OSLO,

Tel. +47 22 74 8000, Fax. +47 22 74 8341

Pakistan: see Singapore Philippines: Philips Semiconductors Philippines Inc.,

106 Valero St. Salcedo Village, P.O. Box 2108 MCC, MAKATI, Metro MANILA, Tel. +63 2 816 6380, Fax. +63 2 817 3474

Poland: Al.Jerozolimskie 195 B, 02-222 WARSAW, Tel. +48 22 5710 000, Fax. +48 22 5710 001

Portugal: see Spain Romania: see Italy Russia: Philips Russia, Ul. Usatcheva 35A, 119048 MOSCOW,

Tel. +7 095 755 6918, Fax. +7 095 755 6919 Singapore: Lorong 1, Toa Payoh, SINGAPORE 319762,

Tel. +65 350 2538, Fax. +65 251 6500

Slovakia: see Austria Slovenia: see Italy South Africa: S.A. PHILIPS Pty Ltd., 195-215 Main Road Martindale,

2092 JOHANNESBURG, P.O. Box 58088 Newville 2114, Tel. +27 11 471 5401, Fax. +27 11 471 5398

South America: Al. Vicente Pinzon, 173, 6th floor, 04547-130 SÃO PAULO, SP, Brazil, Tel. +55 11 821 2333, Fax. +55 11 821 2382

Spain: Balmes 22, 08007 BARCELONA, Tel. +34 93 301 6312, Fax. +34 93 301 4107

Sweden: Kottbygatan 7, Akalla, S-16485 STOCKHOLM, Tel. +46 8 5985 2000, Fax. +46 8 5985 2745

Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH, Tel. +41 1 488 2741 Fax. +41 1 488 3263

Taiwan: Philips Semiconductors, 6F, No. 96, Chien Kuo N. Rd., Sec. 1, TAIPEI, Taiwan Tel. +886 2 2134 2886, Fax. +886 2 2134 2874

Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd., 209/2 Sanpavuth-Bangna Road Prakanong, BANGKOK 10260, Tel. +66 2 745 4090, Fax. +66 2 398 0793

Turkey: Yukari Dudullu, Org. San. Blg., 2.Cad. Nr. 28 81260 Umraniye, ISTANBUL, Tel. +90 216 522 1500, Fax. +90 216 522 1813

Ukraine: PHILIPS UKRAINE, 4 Patrice Lumumba str., Building B, Floor 7, 252042 KIEV, Tel. +380 44 264 2776, Fax. +380 44 268 0461

United Kingdom: Philips Semiconductors Ltd., 276 Bath Road, Hayes, MIDDLESEX UB3 5BX, Tel. +44 208 730 5000, Fax. +44 208 754 8421

United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409, Tel. +1 800 234 7381, Fax. +1 800 943 0087

Uruguay: see South America Vietnam: see Singapore Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD,

Tel. +381 11 3341 299, Fax.+381 11 3342 553

Printed in The Netherlands 753503/01/pp76 Date of release: 2000 Mar 21 Document order number: 9397 750 04685

Datasheet SAA7392HL-M2, SAA7392HL-M3, SAA7392HL-M3A Datasheet (Philips)

Specifications and Main Features

Frequently Asked Questions

User Manual