Philips TEA5768HL Datasheet

34.807IRELESS

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INTEGRATED CIRCUITS

DATA SH EET

TEA5768HL

Low-power FM stereo radio for handheld applications

Product speciﬁcation Supersedes data of 2003 Nov 06

2004 Sep 13

Philips Semiconductors Product speciﬁcation

Low-power FM stereo radio for handheld applications

CONTENTS

1 FEATURES 2 GENERAL DESCRIPTION 3 ORDERING INFORMATION 4 QUICK REFERENCE DATA 5 BLOCK DIAGRAM 6 PINNING 7 FUNCTIONAL DESCRIPTION

7.1 Low-noise RF amplifier

7.2 FM mixer

7.3 VCO

7.4 Crystal oscillator

7.5 PLL tuning system

7.6 RF AGC

7.7 IF filter

7.8 FM demodulator

7.9 Level voltage generator and analog-to-digital converter

7.10 IF counter

7.11 Soft mute

7.12 MPX decoder

7.13 Signal dependent mono to stereo blend

7.14 Signal dependent AF response

7.15 Software programmable ports

8.1 I2C-bus specification

8.1.1 Data transfer

8.1.2 Power-on reset

8.2 I2C-bus protocol

8.3 Writing data

8.4 Reading data

8.5 Bus timing

C-BUS AND BUS-CONTROLLED

FUNCTIONS

TEA5768HL

9 LIMITING VALUES 10 THERMAL CHARACTERISTICS 11 DC CHARACTERISTICS 12 AC CHARACTERISTICS 13 INTERNAL PIN CONFIGURATION 14 APPLICATION INFORMATION 15 PACKAGE OUTLINE 16 SOLDERING

16.1 Introduction to soldering surface mount packages

16.2 Reflow soldering

16.3 Wave soldering

16.4 Manual soldering

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

17 DATA SHEET STATUS 18 DEFINITIONS 19 DISCLAIMERS 20 PURCHASE OF PHILIPS I2C COMPONENTS

2004 Sep 13 2

Philips Semiconductors Product speciﬁcation

Low-power FM stereo radio for handheld applications

1 FEATURES

• High sensitivity due to integrated low-noise RF input amplifier

• FM mixer for conversion to IF of the US/Europe (87.5 MHz to 108 MHz) and Japanese (76 MHz to 91 MHz) FM band

• Preset tuning to receive Japanese TV audio up to 108 MHz

• RF Automatic Gain Control (AGC) circuit

• LC tuner oscillator operating with low cost fixed chip

inductors

• FM IF selectivity performed internally

• No external discriminator neededdue to fully integrated

FM demodulator

• Crystal reference frequency oscillator; the oscillator operates with a 32.768 kHz clock crystal or with a 13 MHz crystal and with an externally applied 6.5 MHz reference frequency

• PLL synthesizer tuning system

• I2C-bus

• 7-bit IF counter output via the I2C-bus

• 4-bit level information output via the I2C-bus

• Soft mute

• Signal dependent mono to stereo blend [Stereo Noise

Cancelling (SNC)]

• Signal dependent High Cut Control (HCC)

TEA5768HL

• Soft mute, SNC and HCC can be switched off via the I2C-bus

• Adjustment-free stereo decoder

• Autonomous search tuning function

• Standby mode

• Two software programmable ports

• Bus enable line to switch the bus input and output lines

into 3-state mode.

2 GENERAL DESCRIPTION

The TEA5768HL is a single-chip electronically tuned FM stereo radio for low-voltage applications with fully integrated IF selectivity and demodulation. The radio is completely adjustment-free and only requires a minimum of small and low cost external components. The radio can be tuned to the European, US and Japanese FM bands.

3 ORDERING INFORMATION

TYPE

NUMBER

TEA5768HL LQFP32 plastic low proﬁle quad ﬂat package; 32 leads; body 7 × 7 × 1.4 mm SOT358-1

2004 Sep 13 3

NAME DESCRIPTION VERSION

PACKAGE

Philips Semiconductors Product speciﬁcation

Low-power FM stereo radio for

TEA5768HL

handheld applications

4 QUICK REFERENCE DATA

CCA=VCC(VCO)=VCCD

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

CCA

CC(VCO)

analog supply voltage 2.5 3.0 5.0 V voltage controlled oscillator

supply voltage

CCD

CCA

CC(VCO)

digital supply voltage 2.5 3.0 5.0 V analog supply current operating; V

voltage controlled oscillator supply current

CCD

FM(ant)

amb

digital supply current operating; V

FM input frequency 76 − 108 MHz

ambient temperature V FM overall system parameters; see Fig.5 V

−200

+200

RF sensitivity input voltage fRF= 76 MHz to 108 MHz; ∆f = 22.5 kHz;

LOW side 200 kHz selectivity ∆f=−200 kHz; fRF= 76 MHz to 108 MHz;

HIGH side 200 kHz

selectivity V

AFL

; V

left and right audio frequency

AFR

output voltage (S+N)/N maximum signal plus

noise-to-noise ratio

cs(stereo)

stereo channel separation VRF= 1 mV; R = L = 0 or R = 0 and L = 1

THD total harmonic distortion VRF= 1 mV;L = R; ∆f = 75 kHz; f

2.5 3.0 5.0 V

= 3 V 6.0 8.4 10.5 mA

CCA

standby mode; V operating; V

VCOTANK1=VVCOTANK2

standby mode; V

CCD

standby mode; V

=3V − 36 µA

CCA

= 3 V 560 750 940 µA

VCOTANK1=VVCOTANK2

=3V − 12 µA

= 3 V 2.1 3.0 3.9 mA

=3V

CCD

bus enable line HIGH 30 56 80 µA bus enable line LOW 11 19 26 µA

CCA=VCC(VCO)=VCCD

=2.5Vto5V −10 − +75 °C

− 2 3.5 µV

= 1 kHz; (S+N)/N = 26 dB;

mod

de-emphasis = 75 µs; L = R; BAF= 300 Hz to 15 kHz

32 36 − dB

note 1 ∆f = +200 kHz; fRF= 76 MHz to 108 MHz;

39 43 − dB

note 1 VRF= 1 mV; L = R; ∆f = 22.5 kHz;

= 1 kHz; de-emphasis = 75 µs

mod

VRF= 1 mV; L = R; ∆f = 22.5 kHz; f

= 1 kHz; de-emphasis = 75 µs;

mod

60 75 90 mV

54 60 − dB

BAF= 300 Hz to 15 kHz

24 30 − dB

including 9 % pilot; ∆f = 75 kHz; f

mod

= 1 kHz;

data byte 3 bit 3 = 0; data byte 4 bit1=1

mod

= 1 kHz;

− 0.4 1 %

de-emphasis = 75 µs

Note

1. LOWside and HIGH sideselectivity can be switched bychanging the mixer fromHIGH side to LOWside LO injection.

2004 Sep 13 4

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2004 Sep 13 5

5 BLOCK DIAGRAM

Philips Semiconductors Product speciﬁcation

Low-power FM stereo radio for

handheld applications

CCA

FM antenna

4.7 Ω

100 pF

22 nF

47 nF

LIMDEC2

22 µF

27 pF 47 pF

4.7 nF

gain

AGND

CCA

RFI1

RFGND

RFI2

TAGC

LOOPSW

10 nF

I/Q-MIXER

1st FM

28 29

TUNING SYSTEM

CPOUT VCOTANK2 V

39 nF

10 kΩ

100 kΩ

AGC

VCO

VCOTANK1

D1L3D2

÷2

GAIN

STABILIZATION

RESONANCE

AMPLIFIER

IF CENTRE

FREQUENCY

ADJUST

programmable divider output

reference frequency divider output

CC(VCO)

47 nF

LIMDEC1 TIFC

24 23 22 21 20

LIMITER

LEVEL

ADC

5678 DGND CLOCK

12 Ω

CCD

47 nF

DEMODULATOR

COUNTER

ref

MUX

I2C-BUS

CCD

22 nF

TEA5768HL

PROGRAMMABLE

DATAV

33 nF

ref

POWER

SUPPLY

SOFTWARE

PORT

pilot

mono

MPXO TMUTE

SOFT MUTE

MPX

DECODER

33 nF

AFR

19 18 17

SDS

CRYSTAL

OSCILLATOR

mhc275

AFL

12 11

PILFIL

PHASEFIL XTAL2

XTAL1

SWPORT2 SWPORT1

BUSENABLE

BUSMODE

33 kΩ

1 nF

22 nF

(1)

comp

(1)

32.768 kHz

pull

10 kΩ

13 MHz

CCA

The component list is given Chapter 14. (1) C

comp

and C

data depends on crystal specification.

pull

47 Ω

22 nF

CC(VCO)

TEA5768HL

Fig.1 Block diagram.

Philips Semiconductors Product speciﬁcation

Low-power FM stereo radio for handheld applications

6 PINNING

SYMBOL PIN DESCRIPTION

CPOUT 1 charge pump output of synthesizer PLL VCOTANK1 2 voltage controlled oscillator tuned circuit output 1 VCOTANK2 3 voltage controlled oscillator tuned circuit output 2 V

CC(VCO)

DGND 5 digital ground V

CCD

DATA 7 bus data line input/output CLOCK 8 bus clock line input BUSMODE 9 bus mode select input BUSENABLE 10 bus enable input SWPORT1 11 software programmable port 1 SWPORT2 12 software programmable port 2 XTAL1 13 crystal oscillator input 1 XTAL2 14 crystal oscillator input 2 PHASEFIL 15 phase detector loop ﬁlter PILFIL 16 pilot detector low-pass ﬁlter V

AFL

AFR

TMUTE 19 time constant for soft mute MPXO 20 FM demodulator MPX signal output V

ref

TIFC 22 time constant for IF centre adjust LIMDEC1 23 decoupling IF limiter 1 LIMDEC2 24 decoupling IF limiter 2 I

gain

AGND 26 analog ground V

CCA

RFI1 28 RF input 1 RFGND 29 RF ground RFI2 30 RF input 2 TAGC 31 time constant RF AGC LOOPSW 32 switch output of synthesizer PLL loop ﬁlter

4 voltage controlled oscillator supply voltage

6 digital supply voltage

17 left audio frequency output voltage 18 right audio frequency output voltage

21 reference voltage

25 gain control current for IF ﬁlter

27 analog supply voltage

TEA5768HL

2004 Sep 13 6

Philips Semiconductors Product speciﬁcation

Low-power FM stereo radio for handheld applications

CPOUT LIMDEC2 VCOTANK1 LIMDEC1 VCOTANK2 TIFC

CC(VCO)

CLOCK V

1 2 3 4 5

DGND MPXO

CCD

DATA V

CCA

32313029282726

TEA5768HL

10111213141516

XTAL1 RFI1

XTAL2 V

SWPORT1 RFI2

BUSENABLE TAGC

SWPORT2 RFGND

BUSMODE LOOPSW

PILFIL I

PHASEFIL AGND

gain

24 23 22 21

ref

20 19

TMUTE

AFR

AFL

001aab494

TEA5768HL

Fig.2 Pin configuration.

7 FUNCTIONAL DESCRIPTION

7.1 Low-noise RF ampliﬁer

The LNA input impedance together with the LC RF input circuit defines an FM band filter. The gain of the LNA is controlled by the RF AGC circuit.

7.2 FM mixer

The FM quadrature mixer converts the FM RF (76 MHz to 108 MHz) to an IF of 225 kHz.

7.3 VCO

The varactor tuned LC VCO provides the Local Oscillator (LO) signal for the FM quadrature mixer. The VCO frequency range is 150 MHz to 217 MHz.

7.4 Crystal oscillator

The crystal oscillator can operate with a 32.768 kHz clock crystal or a 13 MHz crystal. The temperature drift of standard 32.768 kHz clock crystals limits the operational temperature range from −10 °C to +60 °C.

The PLL synthesizer can be clocked externally with a

32.768 kHz, a 6.5 MHz or a 13 MHz signal via pin XTAL2. The crystal oscillator generates the reference frequency

for:

• The reference frequency divider for the synthesizer PLL

• The timing for the IF counter

• The free-running frequency adjustment of the stereo

decoder VCO

• The centre frequency adjustment of the IF filters.

7.5 PLL tuning system

The PLL synthesizer tuning system is suitable to operate with a 32.768 kHz or a 13 MHz reference frequency generated by the crystaloscillator or appliedto the IC from an external source. The synthesizer can also be clocked via pin XTAL2 at 6.5 MHz. The PLL tuning system can perform an autonomous search tuning function.

7.6 RF AGC

The RF AGC prevents overloading and limits the amount of intermodulation products created by strong adjacent channels.

2004 Sep 13 7

Philips Semiconductors Product speciﬁcation

Low-power FM stereo radio for handheld applications

7.7 IF ﬁlter

Fully integrated IF filter.

7.8 FM demodulator

The FM quadrature demodulator has an integrated resonator to perform the phase shift of the IF signal.

7.9 Level voltage generator and analog-to-digital converter

TheFM IF analog level voltage isconvertedto4 bits digital data and output via the I2C-bus.

7.10 IF counter

The IF counter outputs a 7-bit count result via the I2C-bus.

7.11 Soft mute

The low-pass filtered level voltage drives the soft mute attenuator at low RF input levels. The soft mute function can be switched off via the I2C-bus.

7.12 MPX decoder

The PLL stereo decoder is adjustment-free. The stereo decoder can be switched to mono via the I2C-bus.

TEA5768HL

C-BUS AND BUS-CONTROLLED FUNCTIONS

8.1 I

InformationabouttheI2C-buscanbefoundinthebrochure

“The I2C-bus and how to use it”

9398 393 40011). The standard I2C-bus specification is expanded by the

following definitions. IC address C0: 1100000. Structure of the I2C-bus logic: slave transceiver. Subaddresses are not used. The maximum LOW-level input and the minimum

HIGH-level input are specified to 0.2V respectively.

The pin BUSMODE must be connected to ground. Before any READ or WRITE operation the pin

BUSENABLE has to be HIGH for at least 10 µs. Note: The bus operates at a maximum clock frequency of

400 kHz. It is not allowed to connect the IC to a bus operating at a higher clock rate.

8.1.1 DATA TRANSFER

C-bus speciﬁcation

(order number

and 0.45V

CCD

7.13 Signal dependent mono to stereo blend

With a decreasing RF input level the MPX decoder blends from stereo to mono to limit the output noise. The continuousmono to stereo blendcan also be programmed viathe I2C-busto an RF level depending switchedmono to stereo transition. Stereo Noise Cancelling (SNC) can be switched off via the I2C-bus.

7.14 Signal dependent AF response

Theaudio bandwidth will bereduced with a decreasingRF input level. This function can be switched off via the I2C-bus.

7.15 Software programmable ports

Two software programmable ports(open-collector) can be addressed via the I2C-bus.

The port 1 (pin SWPORT1) function can be changed with write data byte 4 bit 0 (see Table 13). Pin SWPORT1 is then output for the ready flag of read byte 1.

Datasequence:address,byte 1,byte 2,byte 3, byte 4 and byte 5 (the data transfer has to be in this order). The LSB = 0of the address indicates a WRITEoperationto the TEA5768HL.

Bit 7 of each byte is considered as the MSB and has to be transferred as the first bit of the byte.

The data becomes valid bitwise at the appropriate falling edge of the clock. A STOP condition after any byte can shorten transmission times.

When writing to the transceiver by using the STOP condition before completion of the whole transfer:

• The remaining bytes will contain the old information

• If thetransfer of a byte isnot completed, the newbitswill

be used, but a new tuning cycle will not be started.

The IC can be switched into a low current standby mode with the standby bit; the bus is then still active. The standby current can be reduced by deactivating the bus interface (pin BUSENABLE LOW). If the bus interface is deactivated (pin BUSENABLE LOW) without the standby mode being programmed, the IC maintains normal operation, but is isolated from the bus lines.

2004 Sep 13 8

Philips Semiconductors Product speciﬁcation

Low-power FM stereo radio for handheld applications

The software programmable output (SWPORT1) can be programmed to operate as a tuning indicator output. As long as the IC has not completed a tuning action, pin SWPORT1 remains LOW. The pin becomes HIGH, when a preset or search tuning is completed or when a band limit is reached.

The reference frequency divider of the synthesizer PLL is changed when the MSB in byte 5 is set to logic 1. The tuning system can then be clocked via pin XTAL2 at

6.5 MHz.

8.2 I

Table 1 Write mode

Notes

1. S = START condition.

2. A = acknowledge.

3. P = STOP condition.

C-bus protocol

(1)

address (write) A

TEA5768HL

8.1.2 POWER-ON RESET At Power-on reset the mute is set, all other bits are set to

LOW. To initialize the IC all bytes have to be transferred.

(2)

data byte(s) A

(2)

(3)

Table 2 Read mode

(1)

address (read) A

(2)

data byte 1

Notes

1. S = START condition.

2. A = acknowledge.

Table 3 IC address byte

IC ADDRESS MODE

1100000R/W

Note

1. Read or write mode:

a) 0 = write operation to the TEA5768HL b) 1 = read operation from the TEA5768HL.

(1)

2004 Sep 13 9

Philips Semiconductors Product speciﬁcation

Low-power FM stereo radio for

TEA5768HL

handheld applications

8.3 Writing data

Table 4 Write mode

DATA BYTE 1 DATA BYTE 2 DATA BYTE 3 DATA BYTE 4 DATA BYTE 5

Table 5 Format of 1st data byte

BIT 7 (MSB) BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 (LSB)

MUTE SM PLL13 PLL12 PLL11 PLL10 PLL9 PLL8

Table 6 Description of 1st data byte bits

BIT SYMBOL DESCRIPTION

7 MUTE if MUTE = 1 then L and R audio are muted; if MUTE = 0 then L and R audio are not

muted

6SMSearch Mode: if SM = 1 then in search mode; if SM = 0 then not in search mode

5 to 0 PLL[13:8] setting of synthesizer programmable counter for search or preset

Table 7 Format of 2nd data byte

BIT 7 (MSB) BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 (LSB)

PLL7 PLL6 PLL5 PLL4 PLL3 PLL2 PLL1 PLL0

Table 8 Description of 2nd data byte bits

BIT SYMBOL DESCRIPTION

7 to 0 PLL[7:0] setting of synthesizer programmable counter for search or preset

Table 9 Format of 3rd data byte

BIT 7 (MSB) BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 (LSB)

SUD SSL1 SSL0 HLSI MS MR ML SWP1

Table 10 Description of 3rd data byte bits

BIT SYMBOL DESCRIPTION

7 SUD Search Up/Down: if SUD = 1 then search up; if SUD = 0 then search down

6 and 5 SSL[1:0] Search Stop Level: see Table 11

4 HLSI HIGH/LOW Side Injection: if HLSI = 1 then HIGH side LO injection; if HLSI = 0 then

LOW side LO injection 3MSMono to Stereo: if MS = 1 then forced mono; if MS = 0 then stereo ON 2MRMute Right: if MR = 1 then the right audio channel is muted and forced mono; if MR = 0

then the right audio channel is not muted 1MLMute Left: if ML = 1 then the left audio channel is muted and forced mono; if ML = 0

then the left audio channel is not muted 0 SWP1 Software programmable port 1: if SWP1 = 1 then port 1 is HIGH; if SWP1 = 0 then

port 1 is LOW

2004 Sep 13 10

Philips Semiconductors Product speciﬁcation

Low-power FM stereo radio for

TEA5768HL

handheld applications

Table 11 Search stop level setting

SSL1 SSL0 SEARCH STOP LEVEL

0 0 not allowed in search mode 0 1 low; level ADC output= 5 1 0 mid; level ADC output = 7 1 1 high; level ADC output = 10

Table 12 Format of 4th data byte

BIT 7 (MSB) BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 (LSB)

SWP2 STBY BL XTAL SMUTE HCC SNC SI

Table 13 Description of 4th data byte bits

BIT SYMBOL DESCRIPTION

7 SWP2 Software programmable port 2: if SWP2 = 1 then port 2 is HIGH; if SWP2 = 0 then

port 2 is LOW 6 STBY Standby: if STBY = 1 then in standby mode; if STBY = 0 then not in standby mode 5BLBand Limits: if BL = 1 then Japanese FM band; if BL = 0 then US/Europe FM band 4 XTAL if XTAL = 1 then f 3 SMUTE Soft MUTE: if SMUTE = 1 then soft mute is ON; if SMUTE = 0 then soft mute is OFF 2 HCC High Cut Control: if HCC = 1 then high cut control is ON; if HCC = 0 then high cut

control is OFF 1 SNC Stereo Noise Cancelling: if SNC = 1 then stereo noise cancelling is ON; if SNC = 0

then stereo noise cancelling is OFF 0SISearch Indicator: if SI = 1 then pin SWPORT1 is output forthe ready ﬂag; if SI = 0 then

pin SWPORT1 is software programmable port 1

= 32.768 kHz; if XTAL = 0 then f

xtal

= 13 MHz

xtal

Table 14 Format of 5th data byte

BIT 7 (MSB) BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 (LSB)

PLLREF DTC −−−−−−

Table 15 Description of 5th data byte bits

BIT SYMBOL DESCRIPTION

7 PLLREF if PLLREF = 1 then the 6.5 MHz reference frequency for the PLL is enabled;

if PLLREF = 0 then the 6.5 MHz reference frequency for the PLL is disabled 6 DTC if DTC = 1 then the de-emphasis time constant is 75 µs; if DTC = 0 then the

de-emphasis time constant is 50 µs

5to0 − not used; position is don’t care

2004 Sep 13 11

+ 25 hidden pages

Philips TEA5768HL Datasheet

Specifications and Main Features

Frequently Asked Questions

User Manual

1 FEATURES

2 GENERAL DESCRIPTION

3 ORDERING INFORMATION

4 QUICK REFERENCE DATA

5 BLOCK DIAGRAM

6 PINNING

7 FUNCTIONAL DESCRIPTION

7.2 FM mixer

7.3 VCO

7.4 Crystal oscillator

7.5 PLL tuning system

7.6 RF AGC

7.8 FM demodulator

7.9 Level voltage generator and analog-to-digital converter

7.10 IF counter

7.11 Soft mute

7.12 MPX decoder

7.13 Signal dependent mono to stereo blend

7.14 Signal dependent AF response

7.15 Software programmable ports

8.3 Writing data