LG DRN-8060B Service Manual

INTRODUCTION

This service manual provides a variety of service information. It contains the mechanical structure of the DVD-ROM Drive together with mechanical adjustments and the electronic circuits in

schematic diagram. This DVD-ROM Drive was manufactured and assembled under our strict quality control standards and meets or exceeds industry specifications and standards.

GENERAL FEATURE

• ATAPI interface	• DVD-R, CD-R, CD-RW read capability
• Ultra Slim type DVD-ROM drive. (Height : 12.7 mm)	• Drawer load
• Ability to read single sided, single layer,	• MPC level 3 compatible
or dual layer DVD media	• Photo CD : Single and Multisession support
• ATA4, Ultra DMA33 support	• XA ready
• DVD-5, DVD-9, DVD-10 Capable	• Subcode Q
• Sustained Transfer Rate 10,800 KB/sec (Max.)	• Red Book Audio
DVD media & 3600 KB/sec (Max.) CD-ROM Media	• Analog Line out
• (150)ms Average Access time in DVD mode	• Digital Audio through Atapi interface
• (130)ms Average Access time in CD mode	• Energy conservation modes
• Support 8x(Max.) Rotational Modes in DVD mode	• Horizontal/Vertical operation
• Support 24x(Max.) Rotational Modes in CD mode

SPECIFICATIONS

1. SUPPORTED SYSTEM

• IBM Compatible Pentium 133MHz or Above • MPEG II Board or Software MPEG II Program

2. SUPPORTED OS

•	MS-DOS (Ver 3.1 or Higher)	•	Windows NT (Ver 3.5, Ver 4.0) or Higher
•	Windows 3.1/95/98 Higher	•	OS/2 Warp (Ver 3.0 & 4.0) or Higher

3. GENERAL PERFORMANCE

• Rotational Speed........................................................	DVD : 3.3X~8X (CAV) Approx. 4,800 rpm
		(single layer - Press)
		2.0X~4X (CAV) Approx. 3,800 rpm(DVD-R)
		2.0X~4X (CAV) Approx. 4,200 rpm(dual layer)
	CD-ROM : 10X~24X (CAV) Approx. 4,650~5,000rpm
	CD-RW, V-CD, Audio CD : 6X~12X (CAV) Approx. 3,200rpm
• Data Transfer Rate
* Sustained Data Transfer Rate................................	DVD(Outer side)		: Approx. 10,800kbytes/sec
	DVD (Inner side) : Approx. 4,500kbytes/sec
	CD (Outer side)		: Approx. 3,600kbytes/sec
	CD (Inner side)		: Approx. 1,550kbytes/sec
* Burst (ATAPI) .........................................................	16.67 Mbytes/sec (PIO Mode 4)
	16.67 Mbytes/sec (Muliword DMA Mode 2)
	33.3 Mbytes/sec (Ultra DMA)
• Access Time (Including Latency)
* Random Access*1 ..................................................	DVD : 150ms Typical (8X)
* Full Access (First to Last Block)*2	CD	: 130ms Typical (24X)
	DVD : 240ms Typical (8X)
	CD	: 220ms Typical (24X)

Notes :

*1 : Average Random Seek time is the typical value of more than 100times including latency and error correction time.

*2 : Average Seek time is the typical value of more than 100times including latency and error correction time.

Test Disc : a CD : A-BEX TCDR-701

b DVD : A-BEX TDV-520 or TEAC MDVD411/MDVD-191or TDR-820

• Data Buffer Capacity .................................................. 512Kbytes

3

4. POWER REQUIREMENTS

• Voltage .......................................................................	+5V DC + 5%
• Ripple .........................................................................	+5V : 100mVp-p
• Seek ..........................................................................	1300mA Max, 960mA Typical
• Normal Read ..............................................................	1,000mA Max, 880mA Typical
• Standby & sleep .........................................................	40mA Max

5. AUDIO PERFORMANCE

• Frequency Response .................................................	20Hz~20KHz ( + 3dB)
• S/N Ratio (IHF-A+20kHZ LPF) ...................................	80 dB (Typical at 1 KHz 0dB)
	75 dB (Limit at 1 KHz 0dB)
• T.H.D. (IHF-A+20kHZ LPF) ........................................	0.05%	(Typical at 1 KHz 0dB)
	0.15%	(Limit at 1 KHz 0dB)
• Channel Separation (IHF-A+20kHZ LPF)...................	75 dB (Typical)
	70 dB (Limit)
• Output Level (1kHz 0dB) 47KΩ Load.........................	1.0Vrms + 20%

4

DISASSEMBLY

1. CABINET

A.Release 3 screws (A).

B.Lift up the Cabinet in the direction of arrow (1). (See Fig.1)

CABINET

(A)

(A)

(A)

2 HOOKS

Fig.1

2. MAIN CIRCUIT BOARD

A.Inset and press a rod in the Emergency Eject Hole and then the CD Tray will open in the direction of arrow (2).

B.Release 2 screws (B).

C.Remove the Main Circuit Board.

(B)

(B)

MAIN CIRCUIT BOARD

(2)

Emergency Eject Hole

Fig.2

3. FRONT PANEL

A.Release 2 screws (C) and remove the Front Panel.

B.At this time, be careful not to damage the 2 hooks (a) of the it. (See fig.3)

C.Release 3 screws (D) and remove the Cover Bottom (3).

HOOK (a)
(2)
	(3)
FRONT PANEL
	(D)
(D)	COVER BOTTOM
(C)	(D)
	(C)
	Fig.3

4. BASE PICK-UP

A. Remove the Base Pick-up (4).

(4)

BASE PICK-UP

Fig.4

5

DESCRIPTION OF CIRCUIT

1. APC (Automatic Power Control) Circuit

1-1. APC Circuit Constitution

	PN201			IC201 SSI3723
DVD-LD(LASER DIODE)
	14	DVD-		23	DVD PD
		MD
			Vcc5V
		DVD-
	15
LD		LD
			C233
Monitor		R213
Diode
				21	DVD LD
			Q202	C234
CD-LD(LASER DIODE)
	10	CD-		24	CD PD
		MD
			Vcc5V
		CD-
LD	9
		LD
			C203	22	CD LD
Monitor		R202
Diode
		Q201		C207
PICK-UP Unit

1-2. APC Circuit Operation

It drives the LD to the constant current and adjusts the LD input current , so that the output current is constant.

IC201 (SSI3723) Pin 23 , 24 : PD IN, Monitor Input of Laser diode APC

IC201 (SSI3723) Pin 21 , 22 : LD OUT, External Current Driver Control output of the LD (Laser Diode)

The detect current from the monitor diode converts to the I/V (Current/Voltage) at the external resistor. Beforehand, it adjusts a fixed level over for a standard GND.

If this voltage inputs to the PD IN (IC201 Pin 23, 24), it is amplified about 36.4 times (about 31.2dB). So this voltage outputs from the LD OUT (IC201 Pin 21, 22).

The LD driving element (Q201/Q202) uses the TR more than 200hfe, and controls LD OUT (IC201 Pin 21, 22) connected to the base of Q201/Q202.

The APC control for the each DVD/CD sets Register of the IC201 (SSI3723) according to Disc in the µ-COM.

15

2. RF Amplifier Circuit

2-1. RF AMP Constitution

Pick-up Unit						IC201
						SSI3723
PN201
E	1	CD (A, B, C)	13 14					AGC
	13
A				AMP		BUFF
C	11		15 16						40 FE
							MUX
B	16	DVD (A, B, C, D)	9	10					To IC301 3
F					SUM
	17			GCA	AMP
		4	11 12
	19
F	20	4
D
		DVD
C
B		(A2, B2, C2, D2)	3	4		Phase
A					EQ
			5	GCA		Detector
E				6
							MUX	GCA	39 TE
	1	CD (E, F)	17						To IC301 143
				AMP
18	12		18
						AGC
		DVD RF	1	MUX	ATT		EQ		57 RF AC
									To IC301 13
				RF SIN					To IC401 117
				63	64
						RF DC

16

3. Focus/Tracking/Sled Servo Circuit

3-1. FOCUS, TRACKING & SLED SERVO PROCESS

FOCUS & TRACKING SERVO PROCESS
						IC201
	Pick - Up					RF AMP
						SSI3723
	E		CD(A. B. C. E. F)
	A				(A. B. C)		FOCUS	FE
	C				(A. B. C.D)		ERROR
	B		5				DETECTOR
	F
	F			E-F
						Generating
	D		DVD(A. B. C. D.)
						TE
	C
	B		6
	A						TE/
	E
						Generating	DPD TE
				(A2. B2. C2 .D2)		DPD TE	SELECTOR
	FOCUS &						TE
	TRACKING
	ACTUATOR
							IC301	TE	FE
							CD/DVD SERVO & DSP
							CXD3011R
T+	T-	F+	F-
			IC601				SLED	A/D
							Control
			DRIVE				Signal
			BA5918
	LEVEL SHIFT
				FAO
		SHIFT						DIGITAL
							D/A	EQUALIZER
				TAO			(AUTO ADJUSTMENT
		LEVEL					CIRCUIT)
SLED(Feed) SERVO PROCESS				IC601					SAO
				DRIVE
	SLED MOTOR			BA5918
	M		FEED. MOTOR+	SHIFT
			FEED. MOTOR-	LEVEL
	Photo Interrupter						5V
			PHO - Vcc
							Q502/Q503
			PHO - C	Q501		SLED CLK			IC501
				2SC4617(BR)					u-COM

17

3-2. Focus Servo for CD/DVD

Focus Servo for CD/DVD is based on focus error signal generated from RF AMP (SSI3723). It standardizes the laser beam (CD : A, B,C, DVD : A, B,C,D) radiated from the pick-up.

Each other focus gain or path is made at the SSI3723 (IC201) according to the disc, Focus Error signal output from the FE terminal and input to Servo IC (IC301 CXD3011R).

After the first amplification of this signal, the signal is converted to A/D and input to Digital Equalizer Block assigned the most important part at the Focus Servo, and generates the focus servo with coefficient value set at the µ-COM through the Digital Filter.

At this Digital Equalizer, auto adjustment for Focus Balance or Focus Loop Gain occurs and the basic offset value for pick-up is accepted on the balance mode, and set the focus standard level to this value.

After the signal for Focus Servo is converted to the D/A and output through FAO (IC301 CXD3011R 113 ). This signal drives Focus Actuator through the Focus Drive IC (IC601:BA5918FP).

3-3. Tracking Servo for CD/DVD

For Tracking Servo, CD uses 3 Beam method (E-F), DVD uses DPD (Differential Phase Detect) method [Phase (A+C) - Phase (B+D)]

According to the disc, Tracking Error is set at SSI3723, Gain or Path differs from each other, and the generated signal output through the TE terminal.

This signal input to TE of IC301, after the first amplification, and converted to A/D.

The signal converted to A/D input to the Digital Equalizer assigned the most important part at the Tracking Servo, Tracking Servo Gain is generated with Digital Filter coefficient value set according to the disc at the µ-COM.

*Tracking signal is converted to D/A through the pin 112 TAO terminal of IC301 and input to IC601 (BA5918FP) tracking drive.

This drive drives the tracking actuator actually.

3-4. Sled Servo (Feed Servo) for CD/DVD

Sled servo operates related with a tracking servo basically

It goes with the progressive track speed according to the disc rotation speed.

Sled drive voltage is generated with a accumulated capacity of tracking error signal and is applied sled movement voltage according to the track movement capacity, and this voltage outputs to the pin 111 SAO of IC301. This value is the sled motor drove by the IC601 (Sled drive : BA5918FP). But, the shift speed for pick-up is not controlled and broke with a only sled servo, itself, in the data access mode, and the feedback is used according to the sled shift speed at this time. So, the accurated shift speed for pick-up is controlled added to the sled signal.

The hall sensor is used in the feedback and SLEDCLK 95 output at the µ-COM (IC501) is used with it in the sled kick or break.

17

4. Spindle Servo Circuit

4-1. SPINDLE SERVO PROCESS

SPINDLE SERVO PROCESS
							IC201
PICK-UP							RF AMP
							SSI3723
A	E			A, B, 2C	RF	A+B+2C
	C						CD RF
B			3
	F
	D			A, B, C, D	RF	A+B+C+D	DVD RF
	C
	B		4
	A
							CD RF
SPINDLE MOTOR							FG
					Motor
			Sensor
	M				Speed	IC501
					Monitoring
						u-com	IC301
			Hall				DVD/CD SERVO &
						CD/ DVD	CD DSP
							CXD3011R
					FG		PLL BLOCK
						Gain	MDP
					Q601
						Ctrl
HU+								DVD RF
HU-
HV+				IC1
HV-				AN8473SA
HW+				Motor Drive			PLL BLOCK
HW-		U
				SHIFT
							MDIN2
		V					Spindle	IC401
				LEVEL
		W					Control	DVD DSP
							SPO	CXD1867R
						IC601
						Drive(Amp)
4-2. Spindle Servo for CD/DVD

DVD-ROM consists of the three spindle control respectively.

(1)DVD x 8 : CAV (DVD Single, Dual Layer)

(2)CD x 12 (max.) : CAV (CD-DA, CD-RW, Video-CD (6-12 x), Host command stand-by of CD-ROM and CD-R)

(3)CD x 24 (max.) : CAV (CD-R, CD-ROM play mode)

In the spindle speed control mode respectively.

CD x 12(Max)/CD x 24(Max) CAV drives CAV servo with PLL of RF data read and received MDP. (Pin 117 of IC301)

DVD x 8 (Max) CAV drives CAV servo with FG signal and received MDP. (Pin 117 of IC301)

19

20

	Generating RF Signal	EFM Demodulation		Receive the order from Host
CD		Error Correction
	Generating Tracking Error	Generating Header Sync		2’nd ECC
	Generating Focusing Error	Generating Subcode Sync		CD Data Buffering
				IC401	Command
	IC201	IC301	SDATA
Pickup	SSI3723 RF	CXD 3011R		CXD1867R
Unit	Signal processing IC	CD DSP	CD DATA	CD-ROM Decoder
	CD RF			and Host Interface	Data
Generating					Status
A/B/2C/E/F Signal				MA [0..8]
	CD TE/FE/SLED			MDB [0..F]
Motor	Spindle Control			IC471	CD Data Buffering
Drive		SICLK	DATA [0..7]	Buffer	CD Data ECC
			ADR [0..8]
		SIXLT
		SIDAT
		SCLK
		IC501
		H8/3062
		CD Servo Control
		CD Data Flow Control
		Host Command Receive or Data/Status Transfer˚

							Flow Processing Data CD .1	DESCRIPTION
								PROCESSING DATA OF

DVD

Pickup

Unit

Generating

A/B/E/F Signal

Motor

Drive

Generating RF Signal

EFM Demodulation

Receive the Command from Host

Generating Tracking Error

EDC + ECC processing

DVD Data Buffering

Generating Focusing Error

Generating DVD ID Sync

Copy Protection Control

Command

SSI3723 RF

CXD1867R

Signal processing IC

DVD RF

DVD DSP

Data/

Status

Error Signal

MA [0..8]

DVD

MDB [0..F]

TE/FE/Sled/

Spindle control

Buffer

DVD Data Buffering

CXD 3011R

CD DSP

Sled Control

H8/3062

Focus Control

Tracking Control

Spindle Control

DVD Servo Control

DVD Data Flow Control

Host Command Receive or Data/Status transfer

Flow Processing Data DVD .2

21

3. Copy Protection and Regional Code Management Block

Block Diagram

			Change the "KEY"		HOST DVD
CXD 1867R					PLAYER
					(MPEG2
					DECODER)
		Scrambled MPEG Data

H8/3062

KEY Management Control

Brief Process

1.Regional Code for DVD Disc

–DVD-ROM drive transfers the regional code of the control data to host by the command of host, the DVD player of host reads the regional code, and plays title in the case of allowed regional code only.

2.Management of DVD Disc for the scrambled of data

(1)DVD-ROM and DVD player of host generate the “KEY 1” respectively, transfer to opposite part, the “KEY 2” is received, recognizes the data transfer or not with this value, and generates the bus key encoded the data.

(2)Encoded “Disc Key” and “Title Key” host is transfer with the bus Key.

(3)DVD player of host reads the key value, and uses the value to restore the scrambled data.

* Refer to the next page for the details.

22

4. About Prevention the DVD-ROM from to be copy

A data is able to encode and record in the disc, if a copyright holder wants to prevent the disc from copying.

In case of a disc enhanced movie of 3 titles......

DISC KEY (2048 Bytes) is used to encode the whole contents in the disc and TITLE KEY (5 Bytes) is used to encode the title respectively.

So, the data is encoded and stored in a disc through the unknown algorithms with a disc key and title key. (At this time, the disc key and title key are stored in a disc.)

…As above, the disc is able to copy when the disc key and title key are opened.

Then, ROM-DRIVE encodes the disc key and title key and transfers to MPEG- 2 board.

If you want to play the disc prevented from the copy......

First of all, ROM-DRIVE and MPEG-2 board identify with each other through the procedure as described below.

AGID	HOST

ROM-DRIVE

Challenge key

MPEG-2

DECODER

encoded disc key, title key

1.Drive and host gives and takes the ID of 2bit. This ID is AGID (Authentication Grant ID).

The various decoder boards are attached to the host, in these, AGID sets the MPEG-2 board and drive.

2.After the AGID is set, MPEG-2 board generates the challenge key (10 Byte) and transfers to drive. The board and drive generate key 1 (5Byte) with the challenge key respectively. (Of course, the Algorithm generating the key 1 is not known.)

3.Compare with the generated key 1, if it corresponds each other, the first step of authentication is completed. This is a course to identify the MPEG-2 board with a drive.

4.The second step of authentication is a course to identify a drive with the MPEG-2 board.

The dirve generates a challenge key and transfers it to the MPEG-2 board. The dirve and MPEG-2 board generate the key 2 (5Byte) with the challenge key, compare with each other, and if it corresponds and the secondary step of authentication is completed.

5.As above, the identification is completed.

6.The dirve and MPEG-2 board generate the Bus key with the key 1 and key 2 and own it.

7.Dirve encodes the disc key and title key with this Bus key and transfers to the MPEG-2 board.

8.The MPEG-2 board reads the encoded disc key and title key with the Bus key only.

9.MPEG-2 board lets data read from the drive to decode with the read disc key and title key and makes into the video signal by decoding.

23

5. About the DVD-ROM Regional Code

Regional code

1									5
	GRL
			FIN			RUS
CAN	2		FST
			LTU
			BIR
			POI
			UKR
						MNG
U.S.A			TUR	TKM		CHN	KOR	JPN	1
BMG						6
				JRN	AFG
MIX	1		FGY		PAK				2
BHS
CUB	PRI. VIR					MMR	HKG TWN	MNP
							MAC
							PHL		MDI
							3	GUM
								PLW
								PNG
						5			1
								AUS
4		2	SWZ
			ZAF						NZL

ISO

4

DISC

ROM - DRIVE

MPEG-2 DECODER

VGA CARD

MONITOR

The disc has the regional code of 8 bit.

Example)

The disc manufactured in the U.S.A, has the number one.

Transfer to MPEG-2 Decoder reading the regional code.

If the decoder is setting to the regional decoder 1 for the U.S.A. ...

Check the received regional code to number 1, all or not, transfer the data to VGA card in accordance with only a case among the three case.

Receiving data from the MPEG-2 decoder and output through the monitor

24

SPINDLE MOTOR ASSY CIRCUIT

To

Main

Board

CN1

CD-A

CD-F

P/UP-VCC

P/UP-VCC

CD-VC

P/UP-GND

P/UP-GND

P/UP-GND

CD-LD

CD-MD

CD-C

CD-E

CD-B

DVD-MD

DVD-LD

DVD-C

DVD-B

DVD-RF

DVD-A

DVD-D

DVD-VC

T (+)

F (-)

F (+)

T (-)

LEADIN SW

MOTORGND

MOTORGND

MOTORVCC

MOTORVCC

EC

ECR

FG

PWR SAVE

SLEDCLOCK

PHO VCC

EJECT SW

LED (+)

SLED (-)

SLED (+)

40

39

38

DVD, CD DISK

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

15

14

13

12

11

10

5

37

36

35

34

33

32

31

9

8

7

6

5

4

3

2

1

CD-A

CD-F

CD-VC

CD-LD

CD-MD

CD-C CD-E

CD-B DVD-MD

DVD-LD

DVD-C

DVD-B

DVD-RF

DVD-A DVD-D

DVD-VC

(+)T

(F-)

(+)F

(T-)

IC471

LASER

IC401

DRAM

PICK-UP

SW

512kB(4M)

SLEDCLK

PHOVCC

EJECT

LED

SLED(+)

SLED(-)

SF-HD4SSLG

CXD1867R

DVD SERVO/DSP

PN701

2V.6

RF PLL

EFM

DVD

ATAPI

D1

4

Demod.

Decode

I/F

H

3V.47u/6

+

C5

CLV

R60.22(1/4W)ECC

O

T

Servo

Sync.Det

S

1u.0

DMA

Core

C6

I/F

IC201

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17

V

SP3723

VH

H3L

H3H

H2L

H2H

H1L

H1H

EC

ECR

FG

START

VPUMP

BC1

BC2

GNC

VDD

50MHz

A/V Dec.

I/F

1.35V

AN8473SAIC1

CD/DVD

VM11

VM12

PWMSW

CD-ROM

I/F

Dec.

NC

A12

A11

PG1

A22

A21

PG2

A32

A31

NC

CS VM22

VM21

RF AMP

IC301

SPINDLE

MOTOR

EQ.

CXD-3011R

Authentication

CD SERVO/DSP

3

VREF

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

IC501

EFM/CIRC

33

X501

H/8/3062

CLV

DAC

C7

0.1u

SYSTEM

Servo

X501

C4

0.1u

CONTROLLER

20MHz

2

R4 220

H3

H2

H1

R5 360

X301

SW1

Audio

1

SSP

Sync. det

33.86MHz

Line

IC1

2200p

SW

Amp

C03

47u/6.3V

0

100

C3

BH3525FVLED (+) (-)

2

AN8473SA

To Motor Drive

IC402(1/2)

SLEDCLK

IC801

PHOVCC

Motor

L2 BEAD

R1

R2

EJECT

SLED

SLED

C2

0.1u

1

2

IC401/501

NJM

+ Spindle

Spindle

VREF1

2100

Drive

Motor

CXD1867

220

VC(1.65V)

-CDA

-CDF

CD

LD-CD

MD-CD

C-CD

E-CD

CD

-DVDMD

DVD-LD

DVD

DVD

DVD

DVD

DVD

-DVDVC

T(+) F(-) F(+) T(-)

Reset

Regulator

VC-

B-

C-

B-

RF-

A-

-

&

R3

Loading &

Sled

To CXD1867

IC101

Sled

Motor

10

Motor

14

15

16

17

18

3.3VA

21

22

23

24

25

26

27

28

29

30

RS5510H003C

1

2

3

4

5

6

7

8

9

11

12

13

19

20

1

2

3

4

5

6

7

8

9

Drive

SWEJECT

CN2

A-CD

CD

Focus

CD

LD-CD

MD-CD

NC

C-CD

E-CD

B-CD

VR-CD

VR-DVD

MD-DVD

HFM-DVD

GND-LD-DVD

LD-DVD

C-DVD

B-DVD

RF-DVD

DVD

DVD

GND-LD-DVD

VC-DVD

VCC-DVD

(+)T

)-(F

(+)F

)-(T

CN3

E-PH

C-PH

A-PH

K-PH

GND

LED

(+)SLED

SLED

F-

TrackingNC -VCC -VC

GND-

5VA-A -D

+5V

&

)-(

CD

CD

Tracking

&

1

Focus coil

5V

Q101

GND

IC601

TO UP-P

C

E

BA5918FP

To CXD-3011R

3.3V

XC62H3302

M

(IC301)

A

K

FROM

HOST

IC102

ADAPTOR

A

B

C

D 62

MAJOR IC INTERNAL BLOCK DIAGRAM AND PIN

DESCRIPTION

IC201 (SSI3723) : RF Signal Processing for CD/DVD

It amplifies or equalize the RF signal from Pick-up, and generate the TE (Tracking Error) and FE (Focus Error) signal for Servo respectively.

The TE signal uses the DPD (Differential Phase Detect) method for DVD and 3 Beam method for CD. DVD FE = (A+C) - (B+D)

CD FE = F - E	ATOP	ATON	AIN	AIP	FNP	FNN	DIN		RFAC
								DIP

Block Diagram

2. FCCR b7-0

5. RFCR b3

3. FBCR b6-0

AGC HOLO

DVDRFP

PROGRAMMABLE

3. FBCR b7

DVDRFN

MUX

ATT

IMPUT

AGC

EQUALIZER

FULL WAVE

OUTPUT INHIBIT

AGC

BIAS

FILTER

RECTIFIER

17. CER b6

DIFFERENTIATOR

FAST Attack

CHARGE

RFSIN

PUMP

4

2

17. CER b5

SLOW decay

2

4. SIGR b7-4

5. RFCR b5-4

BYP

5. RFCR b7-6

ATT

INPUT IMP SEL

AGCO

+ SSOUT

RX

4. SIGR b3

INPUT IMP

Clamp

INPUT SEL

SEL

-

& Env

2

Inv.

+

13. CAR b1-0

13. CAR b3-2

2

Level

-

DAC

15. CCR-b4-0

w/LPF

B+D

SIGDET

A

A

GCA

+

5

+/- 6dB, 4bit

+

SUM

+/- 4dB

70kHz

MUX

B

w/LPF

+

Amp

-

LPF

Offset

GCA

FE

CD_A

GCA

+

A+C

GCA

+

cansel

w/LPF

C

4

6. FOCR b7-4

4

B

GCA

5

PII

70kHz

10. PIOR b4-0

6. FOCR b3-0

D

w/LPF

+

CD_B

Offset

GCA

LPF

PI

4. SIGR b2-0

+

cancel

12dB is added

TOPHOLD

TPH

@high gain mode

9. CTCR b7

COMP

C

(16. CDR b4=1)

SEL

GCA

BCA DET

-

DFT

A+D

2

+

+

14. CBR b3-2

DAC

2

CD_C

GCA

+

+

Buff

14. CBR b1-0

RFDC

+

+

-6dB @normal

4

9. CTCR b3-0

D

GCA

+

B+C

-

TOPHOLD

Offset

GCA

CE

CD_D

GCA

+

cancel

3

6dB

+/- 6dB, 4bit

TOPHOLD

Amp

5

PI

4. SIGR b2-0

17. CER b4-0

FE

MNTR

1. PDCR b3

TE

CD/DVD

12dB is added

CE

Control

MNTR

@high gain mode

V25

V125

6dB is added

(16. CDR b4=1)

V25/3

@high gain mode

(16. CDR b4=1)

10. PIOR b7-5

3

CD_E

GCA

+3dB

18. CFR b2-0

3

LPF

LCP

+/- 4dB

CE-ATT

ATT

LCN

-

18. CFR b3

Pol sel.

2

CD_F

GCA

GCA

+

CEPOL

Buff (-12dB)

14. CBR b5-4

SEL

3

4

16. CDR b5

5. RFCR b2-0

HLDEN

8. TRCR2 b3-0

12dB is added

CP

@high gain mode

(16. CDR b4=1)

Comp

CN

A2

GCA

EQ

PHASE

+

MUX

LPF

SUB

OFFSET

GCA

TE

B2

GCA

EQ

DETECTOR

TE

+

Cancel

RST

6

3

for TE, FE & CE

C2

GCA

EQ

output ref.

18. CFR b4

18. CFR b7-5

16. CDR b1

PHASE

1. PDCR b3

8. TRCR2 b7

7. TRCR b5-0

CD/DVD

CP/CN

CEFDB

D2

GCA

EQ

DETECTOR

Low Imp

for PI output ref.

V25/2

V125

VC

V25

3

3

V25/3

VCI for servo input

5. RFCR b2-0

7. TRCR b6

7. TRCR b7

VC

8. TRCR2 b6-4

12. MRCR2 b4 MIR ONLVL

VC=VPB/2

16. CDR b2

12. MRCR2 b1-0

15. CCR b7 DISK DET

CONTROL

15. CCR b5

15. CCR b6 Disk Det High Gain

Signals

SDEN

Mirr gain

16. CDR b3

APC SEL

16. CDR b7

@CCR b7 Disk Det=1

To each block

SERIAL PORT

12. MRCR2 b3-2

LD H/L

DVD/CD

Sink current

Mirro Clamp ON

11. MRCR b7-5

REGISTER

SDATA

11. MRCR b1-0

12. MRCR2 b7

2

11. MRCR b3-2

Comp offset & hys

SCLK

DVD/PD

Pll

Input Imp

Mirr LPF

Dual APC

2

2

MIRR

AGCO

BOTTOM

COMP

CDPD

ENVELOPE

V33 for Output buff

V33

INPUT

BUFF

PEAK/

16. CDR b6

12. MRCR2 b6-5

15. CCR b7

BOTTOM

LINKEN

2

MUX

DISK DET

HOLD

11. MRCR b4

internal FDCHG

LDON

CDLD

DVDLD

MEV

MEVO

MIN

MLPF

MP

MB

LINK

MIRR

VPA

VPB

VNA

VNB

25

IC201 (SSI3723)

• Pin Description

POWER SUPPLY PINS

	Pin No.		Name	Type		Description
	58		VPA	–		Power supply pin for the RF block and serial port
	19		VPB	–		Power supply pin for the servo block
	51		VNA	–		Ground pin for the RF block and serial port
	25		VNB	–		Ground pin for the servo block
	45		V33	–		Power supply pin for the output buffers
	36		V25	–		Reference power supply for the servo output

INPUT PINS

	Pin No.	Name	Type	Description
	1,2	DVDRFP,DVDRFN	I	RF SIGNAL INPUTS: Differential RF signal attenuator input pins.
	63	RFSIN	I	RF SIGNAL INPUT: Single-ended RF signal attenuator input pin.
	59,60	AIP, AIN	I	AGC AMPLIFIER INPUTS: Differential AGC amplifier input pins.
	54,55	DIP, DIN	I	ANALOG INPUTS FOR RF SINGLE BUFFER: Differential analog inputs to the
				RF single-end output buffer and full wave rectifier.
	9, 10, 11, 12	A, B, C, D	I	PHOTO DETECTOR INTERFACE INPUTS: Inputs from the main beam Photo
				detector matrix outputs.
	3, 4, 5, 6	A2, B2, C2, D2	I	PHOTO DETECTOR INTERFACE INPUTS: AC coupled inputs for the DPD
				from the main beam Photo detector matrix outputs.
	13, 14, 15, 16	CD_A, B, C, D	I	CD PHOTO DETECTOR INTERFACE INPUTS : CD_A, B, C, D come from
				the CD main beam Photo detector matrix outputs.
	17, 18	CD_E, F	I	CD PHOTO DETECTOR INTERFACE INPUTS: CD side beam photo dector
				outputs and used for the CD tracking detection.
	31	MIN	I	RF SIGNAL INPUT FOR MIRROR: AC coupled inputs for the mirror detection
				circuit from MEVO.
	23	DVDPD	I	APC INPUT: DVD APC input pin from the monitor photo diode.
	24	CDPD	I	APC INPUT: CD APC input pin from the monitor photo diode.
	26	LDON	I	APC OUTPUT ON/OFF: APC output control pin. A high level activates LD
				output. (open low)
	33	LINK	I	LINKING SIGNAL INPUT PIN: In the linking area. This pin goes high and the
				Mirror and TE outputs are disabled. When the link signal is enabled. (open low)

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