Philips TEA6846H Datasheet

INTEGRATED CIRCUITS

DATA SH EET

TEA6846H

New In Car Entertainment (NICE) car radio

Product speciﬁcation File under Integrated Circuits, IC01

2001 Apr 12

Philips Semiconductors Product speciﬁcation

New In Car Entertainment (NICE) car radio TEA6846H

CONTENTS

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

7.1 Oscillators

7.1.1 VCO

7.1.2 Crystal oscillator

7.1.3 PLL

7.2 FM signal channel

7.2.1 DAA

7.2.2 FM I/Q mixer

7.2.3 FM keyed AGC

7.2.4 FM IF amplifiers

7.2.5 FM demodulator

7.3 AM signal channel

7.3.1 AM tuner including mixer 1 and mixer 2

7.3.2 AM RF AGC and IF2 AGC

7.3.3 AM detector

7.3.4 AM AF or IF2 switch

7.3.5 AM noise detector and blanker

7.3.6 FM and AM level detector

7.4 Test mode 8 LIMITING VALUES 9 THERMAL CHARACTERISTICS 10 DC CHARACTERISTICS

11 AC CHARACTERISTICS 12 I2C-BUS PROTOCOL

12.1 I2C-bus specification

12.1.1 Test mode

12.1.2 Data transfer for the TEA6846H

12.1.3 I2C-bus pull-up resistors

12.1.4 Frequency setting

12.2 I2C-bus protocol

12.2.1 Data transfer mode and IC address

12.2.2 Write mode: data byte 1

12.2.3 Write mode: data byte 2

12.2.4 Write mode: data byte 3

12.2.5 Write mode: data byte 4

12.2.6 Write mode: data byte 5

12.2.7 Write mode: data byte 6

12.2.8 Read mode: data byte 1 13 TEST AND APPLICATION INFORMATION 14 PACKAGE OUTLINE 15 SOLDERING

15.1 Introduction to soldering surface mount packages

15.2 Reflow soldering

15.3 Wave soldering

15.4 Manual soldering

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

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

2001 Apr 12 2

Philips Semiconductors Product speciﬁcation

New In Car Entertainment (NICE) car radio TEA6846H

1 FEATURES

• FM mixer for conversion of FM RF from 65 to 108 MHz to IF of 10.7 MHz; the mixer provides inherent image rejection

• FM RF mixer can be set to receive weather band radio up to 162.55 MHz; weather band radio flag output

• AM mixer 1 for conversion of AM RF to AM IF1 of

10.7 MHz

• LC tuner oscillator providing mixer frequencies for FM mixer and AM mixer 1

• AM mixer 2 for conversion of AM IF1 to AM IF2 of 450 kHz

• Crystal oscillator providing mixer frequencies for AM mixer 2andreferenceforsynthesizerPLL,IF count, timing for Radio Data System (RDS) update and reference frequency for car audio signal processor ICs

• FastsynthesizerPLLtuning system with local control for inaudible RDS updating

• Timing function for RDS update algorithm and control signal output for car audio signal processor ICs (TEA688x, SAA77xx) or car radio integrated signal processor IC (TEF6890H)

• Digital auto alignment circuit for conversion of LC oscillator tuning voltage to controlled alignment voltage of FM antenna tank circuit

• AGC PIN diode drive circuit for FM RF AGC; AGC detection at FM mixer input; the AGC PIN diode drive can be activated by the I2C-bus as a local or distance function; AGC threshold is a programmable and keyed function switchable via the I2C-bus

• FM IF linear amplifiers with high dynamic input range

• FM quadrature demodulator with automatic centre

frequency adjustment and Total Harmonic Distortion (THD) compensation

• Level detector for AM and FM with temperature compensated output voltage; starting point and slope of level output is programmable via the I2C-bus

• AM RF PIN diode drive circuit; AGC threshold detection at AM mixer 1 and IF2 AGC input; threshold is programmable via the I2C-bus; AM IF2 AGC and demodulator

• AM AF output switchable to provide AM IF2 for AM stereo decoder

• AM noise blanker with blanking at AM IF2

• Several test modes available for fast IC and system

tests.

2 GENERAL DESCRIPTION

The TEA6846H is a single IC with car radio tuner for AM and FM intended for microcontroller tuning with the I2C-bus. It provides the following functions:

• AM double conversion receiver for LW, MW and SW (31 m, 41 m and 49 m bands) with IF1 = 10.7 MHz and IF2 = 450 kHz

• FM single conversion receiver with integrated image rejection for IF = 10.7 MHz capable of selecting US FM, US weather, Europe FM, East Europe FM and Japan FM bands.

3 ORDERING INFORMATION

TYPE

NUMBER

TEA6846H LQFP80 plastic low proﬁle quad ﬂat package; 80 leads;

2001 Apr 12 3

NAME DESCRIPTION VERSION

body 12 × 12 × 1.4 mm

PACKAGE

SOT315-1

Philips Semiconductors Product speciﬁcation

New In Car Entertainment (NICE) car radio TEA6846H

4 QUICK REFERENCE DATA

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

DDA(n)

DDA(tot)

DDA2

DDD

AM(ant)

FM(ant)

FM(WB)(ant)

amb

AM overall system parameters (1 × SFE10.7MS3; 1 × SFR450H)

(S+N)/N signal plus noise-to-noise ratio m = 0.3 − 58 − dB THD total harmonic distortion m = 0.8 − 0.3 − %

FM overall system parameters (3 × SFE10.7MS3)

(S+N)/N signal plus noise-to-noise ratio ∆f = 22.5 kHz;

THD total harmonic distortion ∆f = 75 kHz − 0.6 1 %

analog supply voltage 1, 3, 4, 5

8 8.5 9 V

and 6 total analog supply current 1, 3, 4,

5 and 6

FM mode 45 56 67 mA

AM mode 39 49 59 mA analog supply voltage 2 4.75 5 5.25 V analog supply current 2 FM mode 6.5 8.1 9.8 mA

AM mode 4.7 5.9 7.1 mA digital supply voltage 4.75 5 5.25 V digital supply current FM mode 18 23 28 mA

AM mode 18 23 28 mA AM input frequency LW 0.144 − 0.288 MHz

MW 0.522 − 1.710 MHz

SW 5.85 − 9.99 MHz FM input frequency 65 − 108 MHz FM weather band input frequency 162.4 − 162.55 MHz ambient temperature −40 − +85 °C

m = 0.9 − 0.5 − %

− 65 − dB

de-emphasis = 50 µs

2001 Apr 12 4

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2001 Apr 12 5

5 BLOCK DIAGRAM

Philips Semiconductors Product speciﬁcation

New In Car Entertainment (NICE) car radio TEA6846H

DAATD

DAAOUT

T1FMAGC T2FMAGC

IFMAGC

FMMIXIN2

RFGND

FMMIXIN1

ref(FMMIX)

IAMAGC T2AMAGC T1AMAGC

VCO

BLANK PULSE

DDA3

51 58575655 595453

SEQUENTIAL CIRCUIT FOR

RDS UPDATING

I2C-bus

MIXER2

IF AGC

LEVEL

AMAFIF2AFHOLD

DETECTOR

FM IF AM IF2

LEVEL

DAA

LIMITER/

LEVEL

FMMPXRDSMPXTRDSMUTEAFSAMPLEOSCTNKVCOGND

MUTE

COUNT

DDA2

2 ms/20 ms

DEMODULATOR

CRYSTAL

OSCILLATOR

POWER SUPPLY

I2C-BUS

DDA1

63 64

71 72 73

SDA SCL

IF2GND

QDET1

QDET2

AFC

level

XTAL1 XTALGND XTAL2

ref

DDD

10.25 MHz

DGND

TEA6846H

PEAK/

AVERAGE

CPOUTDAAIN

TUNING SYSTEM

DDA4

44 4746454342

÷2

90°

AM-NOISE

DETECTOR

÷5/10

ref

tune

ANTENNA

37 36 35

33 31 30

28 27 26

AGC

RF AGC

DAA

I/Q MIXER

90°

OSCFDB

48 49

AMMIX1IN1

MIXER 1

22 20

AMMIX1IN2

19 18

MIX1OUT2 IFAMP1DEC IFAMP1IN IFAMP1OUT IF1GND FMLIMIN

DDA5

MIX1OUT1

17 16 14

DDA6

IFAMP1

12 11 9687 5 1234

IFAMP2DEC IFAMP2IN AMIF2IN AMIF2DEC

Fig.1 Block diagram.

handbook, full pagewidth

offset

IFAMP2

AMNBHOLD

IFAMP2OUT

FMLIMDEC

AGC

MGU351

AMMIX2OUT1

AMMIX2OUT2

Philips Semiconductors Product speciﬁcation

New In Car Entertainment (NICE) car radio TEA6846H

6 PINNING

SYMBOL PIN DESCRIPTION

FMLIMDEC 1 FM limiter decoupling FMLIMIN 2 FM limiter input (10.7 MHz) AMIF2DEC 3 decoupling for AM IF2 input IFAMP2OUT 4 IF ampliﬁer 2 output (10.7 MHz) AMNBHOLD 5 AM noise blanker hold output AMIF2IN 6 AM IF2 input (450 kHz) for demodulator AGC and AM level detector IF1GND 7 AM IF1 ground IFAMP2IN 8 IF ampliﬁer 2 input (10.7 MHz) C

offset

n.c. 10 not connected IFAMP2DEC 11 IF ampliﬁer 2 decoupling and AGC capacitor for AM noise blanker IFAMP1OUT 12 IF ampliﬁer 1 output (10.7 MHz) n.c. 13 not connected IFAMP1IN 14 IF ampliﬁer 1 and AM mixer 2 input (10.7 MHz) n.c. 15 not connected V

DDA6

IFAMP1DEC 17 AM mixer 2 and FM IF ampliﬁer 1 decoupling MIX1OUT1 18 FM mixer and AM mixer 1 IF output high (10.7 MHz) MIX1OUT2 19 FM mixer and AM mixer 1 IF output low (10.7 MHz) V

DDA5

n.c. 21 not connected AMMIX1IN2 22 AM mixer 1 input 2 AMMIX1IN1 23 AM mixer 1 input 1 n.c. 24 not connected n.c. 25 not connected T1AMAGC 26 1st time constant output of AM front-end AGC T2AMAGC 27 2nd time constant of AM front-end AGC IAMAGC 28 PIN diode drive current output of AM front-end AGC V

ref(FMMIX)

FMMIXIN1 30 input 1 of FM RF mixer RFGND 31 RF ground n.c. 32 not connected FMMIXIN2 33 input 2 of FM RF mixer n.c. 34 not connected IFMAGC 35 PIN diode drive current output of FM front-end AGC T2FMAGC 36 2nd time constant of FM front-end AGC T1FMAGC 37 1st time constant of FM front-end AGC DAAOUT 38 output of digital alignment circuit for antenna tank circuit DAATD 39 temperature compensation diode of digital auto alignment circuit for antenna tank circuit DAAIN 40 input of digital auto alignment circuit for antenna tank circuit

9 DC feedback for offset compensation RDS mute

16 analog supply voltage 6 (8.5 V) for IF ampliﬁer 1 and 2

20 analog supply voltage 5 (8.5 V) for FM mixer and AM mixer 1

29 reference voltage for FM mixer

2001 Apr 12 6

Philips Semiconductors Product speciﬁcation

New In Car Entertainment (NICE) car radio TEA6846H

SYMBOL PIN DESCRIPTION

n.c. 41 not connected V

tune

CPOUT 43 charge pump output V

DDA4

ref

DDD

DGND 47 digital ground VCOGND 48 VCO ground OSCFDB 49 VCO feedback OSCTNK 50 VCO tank circuit V

DDA3

n.c. 52 not connected AFSAMPLE 53 AF sample ﬂag output for car audio signal processor IC AFHOLD 54 AF hold ﬂag output for car audio signal processor IC TRDSMUTE 55 time constant for RDS update mute AMAFIF2 56 AM demodulator AF output or IF2 output for AM stereo (multiplexed by I2C-bus) RDSMPX 57 MPX output for RDS decoder and signal processor (not muted) FMMPX 58 FM demodulator MPX output V

DDA2

n.c. 60 not connected V

DDA1

n.c. 62 not connected SDA 63 I2C-bus data line input and output SCL 64 I2C-bus clock line input n.c. 65 not connected IF2GND 66 AM IF2 ground QDET1 67 quadrature demodulator tank 1 QDET2 68 quadrature demodulator tank 2 C

AFC

level

XTAL1 71 crystal oscillator 1 XTALGND 72 crystal oscillator ground XTAL2 73 crystal oscillator 2 n.c. 74 not connected n.c. 75 not connected I

ref

AMMIX2OUT1 77 AM mixer 2 output 1 (450 kHz) AMMIX2OUT2 78 AM mixer 2 output 2 (450 kHz) C

AGC

n.c. 80 not connected

42 tuning voltage

44 analog supply voltage 4 (8.5 V) for tuning PLL 45 reference frequency output for signal processor IC 46 digital supply voltage (5 V)

51 analog supply voltage 3 (8.5 V) for VCO

59 analog supply voltage 2 (5 V) for on-chip power supply

61 analog supply voltage 1 (8.5 V) for on-chip power supply

69 FM demodulator AFC capacitor 70 level voltage output for AM and FM

76 reference current for power supply

79 AMIFAGC capacitor

2001 Apr 12 7

Philips Semiconductors Product speciﬁcation

New In Car Entertainment (NICE) car radio TEA6846H

handbook, full pagewidth

FMLIMDEC

FMLIMIN

AMIF2DEC IFAMP2OUT AMNBHOLD

AMIF2IN

IF1GND

IFAMP2IN

offset

n.c. IFAMP2DEC IFAMP1OUT

n.c.

IFAMP1IN

n.c.

DDA6

IFAMP1DEC

MIX1OUT1 MIX1OUT2

DDA5

AGC

n.c. 80

1 2 3 4 5 6 7 8 9

AMMIX2OUT2

ref

AMMIX2OUT1

n.c.

n.c. 74

XTAL2 73

XTALGND

XTAL1

TEA6846H

11 12 13 14 15 16 17 18 19 20

level

AFC

C 69

QDET2

QDET1

n.c.

IF2GND

SCL

SDA

n.c. 62

DDA1

V 61

n.c.

FMMPX

RDSMPX

AMAFIF2

TRDSMUTE

AFHOLD

AFSAMPLE

n.c.

OSCTNK

OSCFDB

VCOGND

DGND

ref

CPOUT

n.c.

DDA2

DDA3

DDD

DDA4

tune

n.c.

AMMIX1IN2

n.c.

AMMIX1IN1

n.c.

T1AMAGC

T2AMAGC

IAMAGC

ref(FMMIX)

FMMIXIN1

Fig.2 Pin configuration.

2001 Apr 12 8

32 n.c.

RFGND

34 n.c.

FMMIXIN2

IFMAGC

T2FMAGC

DAAOUT

T1FMAGC

DAATD

DAAIN

MHB882

Philips Semiconductors Product speciﬁcation

New In Car Entertainment (NICE) car radio TEA6846H

7 FUNCTIONAL DESCRIPTION

7.1 Oscillators

7.1.1 VCO TheL and CtunedVCO provides the local oscillator signal

for both FM and AM mixer 1. It has a frequency range of

151.2 to 248.2 MHz.

7.1.2 CRYSTAL OSCILLATOR The crystal oscillator provides a 20.5 MHz signal that is

used for:

• Reference frequency for frequency synthesizer PLL

• Local oscillator for AM mixer 2

• Reference frequency for the IF counter

• Timing signal for the RDS update algorithm

• Reference frequency (75.4 kHz) for the TEA6880H (car

audio signal processor - CASP) or TEF6890H (car radio integrated signal processor).

7.1.3 PLL Fast synthesizer PLL tuning system with local control for

inaudible RDS updating.

7.2 FM signal channel

7.2.1 DAA FM RF Digital Auto Alignment (DAA) circuitry for the

conversion of the VCO tuning voltage to a controlled alignment voltage for the FM antenna tank circuit.

7.2.2 FM I/Q MIXER FM quadrature mixer converts FM RF (65 to 162.55 MHz)

to IF of 10.7 MHz. The FM mixer provides inherent image rejection and high RF sensitivity.

It is capable of tuning the US FM, US weather, Europe FM, Japan FM and East Europe FM bands:

• US FM = 87.9 to 107.9 MHz

• US weather FM = 162.4 to 162.55 MHz

• Europe FM = 87.5 to 108 MHz

• Japan FM = 76.0 to 91 MHz

• East Europe FM = 65.8 to 74 MHz.

It includes an AGC PIN diode drive circuit for the FM RF AGC.The PIN diode drive can be activated via theI2C-bus as a local or distance function.

The AGC threshold is programmable and the keyed AGC function is switchable via the I2C-bus.

7.2.4 FM IF AMPLIFIERS The two FM IF amplifiers provide 10 dB and 4 dB

amplification with high linearity and dynamic range.

7.2.5 FM DEMODULATOR The FM quadrature demodulator includes automatic

centre frequency adjustment and THD compensation.

7.3 AM signal channel

7.3.1 AM TUNER INCLUDING MIXER 1 AND MIXER 2 The AM tuner is realized in a double conversion technique

and is capable of selecting LW, MW and SW bands. AM mixer 1 converts AM RF to IF1 of 10.7 MHz, while

AM mixer 2 converts IF1 of 10.7 MHz to IF2 of 450 kHz:

• LW = 144 to 288 kHz

• MW = 530 to 1710 kHz (US AM band)

• SW = 5.85 to 9.99 MHz (including the 31 m, 41 m and

49 m bands).

7.3.2 AM RF AGC AND IF2 AGC The AM RF includes a PIN diode drive circuit. The

threshold detection points for AM AGC are performed at AM mixer 1 and AM IF2. AGC thresholds are programmable via the I2C-bus.

7.3.3 AM DETECTOR The AM detector provides AM level information and

AM AF or AM IF2.

7.3.4 AM AF OR IF2 SWITCH The AM output provides either a detected AM AF or the

corresponding AM IF2 signal. The IF2 signal can be used for AM stereo decoder processing.

7.2.3 FM KEYED AGC FM contains keyed wide-band RF AGC. AGC detection

occursat the FM mixer. The wide-bandRF signalswitches a narrow band signal (IF) from the FM IF level detector circuitry that controls the FM RF AGC block.

2001 Apr 12 9

Philips Semiconductors Product speciﬁcation

New In Car Entertainment (NICE) car radio TEA6846H

7.3.5 AM NOISE DETECTOR AND BLANKER The detection point for the AM noise blanker is the output

stage of AM mixer 1, while blanking is realized at the output of the mixer 2.

Triggersensitivitycan be modified by changing theresistor value at pin AMNBHOLD.

If the test mode is enabled by pin f

• The settling time of the AM IF2 AGC is reduced to less than 100 ms in the nominal application

• The digital-to-analog converters for the antenna DAA and the level DAA can be clocked directly by the SCL line of the I2C-bus

• The output at pin f

7.3.6 FM AND AM LEVEL DETECTOR FM and AM level detectors provide the temperature

compensated output voltage. The starting points and slopes of the level detector outputs are programmable via the I2C-bus.

TEA6880H or TEF6890H reference frequency, PLL reference frequency or PLL programmable divider output frequency

• The RDS update control circuit can be clocked directly via pin DAATD

• Pin T1AMAGC can be used to enable the load PLL

7.4 Test mode

The test mode of the IC is activated by:

circuit of the RDS update control circuit

• Charge pumps can be set into 3-state mode.

• Sending the test byte (byte 5) to the IC

• Connecting pin f

• Applying 50 µA to pin f

through a 100 kΩ resistor to V

ref

ref.

DDA1

8 LIMITING VALUES

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

ref

can be selected by the I2C-bus:

ref

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

DDA1

DDA2

DDA3

DDA4

DDA5

DDA6

DDD

∆V

DD8.5-DD5

analog supply voltage 1 for on-chip power supply −0.3 +10 V analog supply voltage 2 for on-chip power supply −0.3 +6.5 V analog supply voltage 3 for VCO −0.3 +10 V analog supply voltage 4 for tuning PLL −0.3 +10 V analog supply voltage 5 for FM and AM RF −0.3 +10 V analog supply voltage 6 for IF ampliﬁer 1 and 2 −0.3 +10 V digital supply voltage −0.3 +6.5 V difference between any 8.5 V supply voltage and any

note 1 −0.3 − V

5 V supply voltage

stg

amb

storage temperature −55 +150 °C ambient temperature −40 +85 °C electrostatic handling voltage note 2 −200 +200 V

note 3 −2000 +2000 V

Notes

1. To avoid damages and wrong operation it is necessary to keep all 8.5 V supply voltages at a higher level than any 5 V supply voltage. This is also necessary during power-on and power-down sequences. Precautions have to be provided in such a way that interferences can not pull down the 8.5 V supply below the 5 V supply.

2. Machine model (R = 0 Ω, C = 200 pF).

3. Human body model (R = 1.5 kΩ, C = 100 pF).

2001 Apr 12 10

Philips Semiconductors Product speciﬁcation

New In Car Entertainment (NICE) car radio TEA6846H

9 THERMAL CHARACTERISTICS

SYMBOL PARAMETER CONDITIONS VALUE UNIT

th(j-a)

10 DC CHARACTERISTICS

DDA1=VDDA3=VDDA4=VDDA5=VDDA6

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply voltage

DDA(n)

DDA2

DDD

Supply current in FM mode

DDD

DDA1

DDA2

DDA3

DDA4

DDA5

DDA6

MIX1OUT1

MIX1OUT2

Supply current in AM mode

DDD

DDA1

DDA2

DDA3

DDA4

DDA5

MIX1OUT1

MIX1OUT2

AMMIX2OUT1

AMMIX2OUT2

thermal resistance from junction to ambient in free air 54 K/W

= 8.5 V; V

DDA2

=5V; V

DDD

=5V; T

=25°C; unless otherwise speciﬁed.

amb

analog supply voltage 1, 3, 4, 5 and 6 8 8.5 9 V analog supply voltage 2 4.75 5 5.25 V digital supply voltage 4.75 5 5.25 V

digital supply current 18 23 28 mA analog supply current 1 for on-chip power

− 15 − mA

supply analog supply current 2 for on-chip power

6.5 8.1 9.8 mA

supply analog supply current 3 for VCO − 6.5 − mA analog supply current 4 for tuning PLL test mode;

− 2.9 − mA

bit TMS3 = 1 analog supply current 5 for FM RF − 5 − mA analog supply current 6 for FM IF

10 12 14 mA

ampliﬁer 1 and 2 bias current of FM mixer output 1 4.8 6 7.2 mA bias current of FM mixer output 2 4.8 6 7.2 mA

digital supply current 18 23 28 mA analog supply current 1 for on-chip power

− 17.5 − mA

supply analog supply current 2 for on-chip power

4.7 5.9 7.1 mA

supply analog supply current 3 for VCO − 6.5 − mA analog supply current 4 for tuning PLL test mode;

− 1.6 − mA

bit TMS3 = 1 analog supply current 5 for RF − 1.8 − mA bias current of AM mixer 1 output 1 4.8 6 7.2 mA bias current of AM mixer 1 output 2 4.8 6 7.2 mA bias current of AM mixer 2 output 1 3.6 4.5 5.4 mA bias current of AM mixer 2 output 2 3.6 4.5 5.4 mA

2001 Apr 12 11

Philips Semiconductors Product speciﬁcation

New In Car Entertainment (NICE) car radio TEA6846H

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

On-chip power supply reference current generator: pin I

o(ref)

o(max)

output reference voltage 4 4.25 4.5 V output resistance 8 11 13 kΩ maximum output current −100 − +100 nA

ref

11 AC CHARACTERISTICS

DDA1=VDDA3=VDDA4=VDDA5=VDDA6

= 8.5 V; V

DDA2

=5V; V

DDD

=5V; T

=25°C; see Figs 9 and 10; unless

amb

otherwise speciﬁed.

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Voltage controlled oscillator

osc

C/N carrier-to-noise ratio f

RR ripple rejection f

oscillator frequency 151.2 − 248.2 MHz

= 200 MHz; ∆f = 10 kHz − 101 −

osc

= 100 Hz;

ripple

DDA3(ripple)

osc

= 100 mV (RMS) = 250 MHz − 97 − dB = 200 MHz − 99 − dB

FEEDBACK INPUT: PIN OSCFDB V

i(bias)

input bias voltage 2.2 2.8 3.4 V TANK CIRCUIT OUTPUT: PIN OSCTNK V

o(rms)

DC output voltage 5 6.1 7.2 V

AC output voltage

= 200 MHz − 1.5 − V

osc

(RMS value)

Crystal oscillator

f R

xtal

crystal frequency 20.4996 20.5 20.5004 MHz

crystal motional

start of operating −−500 Ω

resistance C

xtal

C/N carrier-to-noise ratio f

crystal shunt capacitance −−18 pF

= 20.5 MHz (10.25 MHz);

xtal

− 112 −

∆f=10kHz

dBc

----------- Hz

dBc

----------- Hz

IRCUIT INPUTS: PINS XTAL1, XTAL2 AND XTALGND

C V

xtal(rms)

crystal voltage

note 1 − 350 − mV

(RMS value)

XTAL1

XTAL2

DC bias voltage 1.7 2.1 2.5 V

real part of input impedance

XTAL1

note 1

− V

XTAL2

input capacitance note 1 8 10 12 pF

2001 Apr 12 12

= 1 mV;

−500 −− Ω

Philips Semiconductors Product speciﬁcation

New In Car Entertainment (NICE) car radio TEA6846H

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

XTALGND

Oscillator divider N1

N1 oscillator divider ratio FM mode:

Oscillator divider N2

N2 oscillator divider ratio AM mode

Synthesizer

crystal oscillator circuit current

start-up at V

XTAL1=VXTAL2

operating at V

− V

XTAL1

XTAL2

= 2.1 V

= ±400 mV

− 9 − mA

− 1.5 − mA

standard, Europe and local − 2 − weather band (WX) − 1 −

SW − 10 − LW and MW − 5 −

PROGRAMMABLE DIVIDER N

prog

programmable divider ratio

∆N

step

programmabledividerstep

size REFERENCE FREQUENCY DIVIDER N

ref

crystal oscillator divider

ratio

CHARGE PUMP: PIN CPOUT I

sink(cp1)l

low charge pump 1 peak

sink current I

source(cp1)l

low charge pump 1 peak

source current I

sink(cp1)h

high charge pump 1 peak

sink current

source(cp1)h

high charge pump 1 peak

source current

sink(cp2)

charge pump 2 peak sink

current I

source(cp2)

charge pump 2 peak

source current I

Z(cp1)

, I

charge pump 1 or 2

Z(cp2)

current in 3-state

512 − 32767

− 1 −

= 20.5 MHz

xtal

= 100 kHz − 205 −

ref

= 50 kHz − 410 −

ref

= 25 kHz − 820 −

ref

= 20 kHz − 1025 −

ref

= 10 kHz − 2050 −

ref

FM weather band mode;

0.4V<V

CPOUT

< 7.6 V

FM weather band mode;

0.4V<V

CPOUT

< 7.6 V

AM stereo mode; N2 = 10

200 300 400 µA

−400 −300 −200 µA

0.7 1 1.3 mA

(LWand MW);

0.4V<V AM stereo mode; N2 = 10

CPOUT

< 7.6 V

−1.3 −1 −0.7 mA

(LWand MW);

0.4V<V FM standard mode;

0.3V<V FM standard mode;

0.3V<V 0<V

CPOUT

< 7.6 V

CPOUT

100 130 160 µA

< 7.1 V

CPOUT

−160 −130 −100 µA

< 7.1 V

CPOUT

< 8.5 V −5 − +5 nA

2001 Apr 12 13

Philips Semiconductors Product speciﬁcation

New In Car Entertainment (NICE) car radio TEA6846H

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

CHARGE PUMP: PIN V I

sink(cp3)

tune

charge pump 3 peak sink

current I

source(cp3)

charge pump 3 peak

source current I

Z(cp3)

charge pump 3 current in

3-state

Antenna Digital Auto Alignment (DAA)

DAA INPUT: PIN DAAIN I

bias(cp)

charge pump buffer input

bias current

i(cp)

charge pump buffer input

voltage DAA OUTPUT: PIN DAAOUT; note 2 V

o(AM)

DAA output voltage in

AM mode V

o(FM)

DAA output voltage in

FM mode

∆V

o(n)

o (T)

DAA output noise voltage FM mode; V

DAA output voltage

variation with temperature

∆V

o (step)

o(sink)

o(source)

DAA step accuracy FM mode; V

DAA output sink current 0.2V<V

DAA output source current −−−50 µA

FM standard mode;

0.4V<V

tune

< 7.6 V

FM standard mode;

0.4V<V 0<V

tune

< 7.6 V

tune

< 8.5 V −5 − +5 nA

FM mode;

0.4V<V

DAAIN

< 8.0 V

AM mode; 0V<V

DAAIN

< 8.5 V

2.1 3 3.9 mA

−3.9 −3 −2.1 mA

−10 − +10 nA

0 − 8.5 V

−−0.3 V

= 4.0 V;

DAAIN

DAATD

= 0.7 V minimum value −−0.5 V bits DAA[6:0] set to logic 0 1.5 1.65 1.8 V value: data

3.8 4 4.2 V

byte 3 = 10101011 maximum value;

8 − 8.5 V

bits DAA[6:0] set to logic 1

DAAIN

DAATD

= 3.0 V;

= 0.7 V; bits DAA[6:0]

6.2 6.5 6.8 V

set to logic 1 V

=2V

DAAIN

data byte 3 = 11010101 3 3.3 3.6 V data byte 3 = 10101010 1.8 2 2.2 V

DAAIN

=4V;

− 30 100 µV data byte 3: bit 6 = 1, bits 5 to 0 = 0; B = 300 Hz to 15 kHz

= −40 to +85 °C;

amb

−8 − +8 mV data byte 3 = 10101011; V

DAATD

= 0.7 V

DAAOUT

< 8.0 V;

0.5V

LSB

1.5V

LSB

n = 0 to 127

DAAOUT

< 8.25 V 50 −− µA

2001 Apr 12 14

+ 30 hidden pages

Philips TEA6846H 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

7.1 Oscillators

7.2 FM signal channel

7.3 AM signal channel

7.4 Test mode

8 LIMITING VALUES

9 THERMAL CHARACTERISTICS

10 DC CHARACTERISTICS

11 AC CHARACTERISTICS