Datasheet TEA6846H Datasheet (Philips)

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

V

DDA(n)

I

DDA(tot)

V

DDA2

I

DDA2

V

DDD

I

DDD

f

AM(ant)

f

FM(ant)

f

FM(WB)(ant)

T

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

V

ref(FMMIX)

IAMAGC
T2AMAGC
T1AMAGC

VCO

BLANK
PULSE

V

50

DDA3

51 58575655 595453

SEQUENTIAL
CIRCUIT FOR

RDS UPDATING

I2C-bus

×

AM

MIXER2

AM

IF AGC

AM

LEVEL

AMAFIF2AFHOLD

AM

DETECTOR

FM IF
AM IF2

LEVEL

DAA

LIMITER/

LEVEL

Σ

FM

FMMPXRDSMPXTRDSMUTEAFSAMPLEOSCTNKVCOGND

MUTE

IF

COUNT

V

DDA2

2 ms/20 ms

DEMODULATOR

CRYSTAL

OSCILLATOR

V

POWER
SUPPLY

I2C-BUS

DDA1

61

63
64

66

67

68

69

70

71
72
73

76

SDA
SCL

IF2GND

QDET1

QDET2

C

AFC

V

level

XTAL1
XTALGND
XTAL2

I

ref

V

DDD

10.25 MHz

DGND

TEA6846H

PEAK/

AVERAGE

CPOUTDAAIN

TUNING SYSTEM

V

DDA4

44 4746454342

WX

N1

÷2

90°

AM-NOISE

DETECTOR

N2

÷5/10

ref

V

tune

40

39

ANTENNA

38

37
36
35

33
31
30

29

28
27
26

AGC

AM

RF AGC

FM

DAA

AM

×

FM

I/Q MIXER

90°

f

OSCFDB

48 49

AMMIX1IN1

23

AM

MIXER 1

22 20

AMMIX1IN2

×

19 18

MIX1OUT2 IFAMP1DEC IFAMP1IN IFAMP1OUT IF1GND FMLIMIN

V

DDA5

MIX1OUT1

17 16 14

V

DDA6

IFAMP1

12 11 9687 5 1234

IFAMP2DEC IFAMP2IN AMIF2IN AMIF2DEC

Fig.1 Block diagram.

C

handbook, full pagewidth

offset

IFAMP2

AMNBHOLD

IFAMP2OUT

C

FMLIMDEC

79

AGC

77

78

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

f

ref

V

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

V

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

C

offset

n.c.
IFAMP2DEC
IFAMP1OUT

n.c.

IFAMP1IN

n.c.

V

DDA6

IFAMP1DEC

MIX1OUT1
MIX1OUT2

V

DDA5

AGC

n.c.
80

1
2
3
4
5
6
7
8
9

10

AMMIX2OUT2

C

79

78

ref

AMMIX2OUT1

I

n.c.

77

76

75

n.c.
74

XTAL2
73

XTALGND

XTAL1

72

71

TEA6846H

11
12
13
14
15
16
17
18
19
20

level

V

70

AFC

C
69

QDET2

68

QDET1

67

n.c.

IF2GND

66

65

SCL

64

SDA

63

n.c.
62

DDA1

V
61

n.c.

60

V

59

FMMPX

58

RDSMPX

57

AMAFIF2

56

TRDSMUTE

55

AFHOLD

54

AFSAMPLE

53

n.c.

52

V

51

OSCTNK

50

OSCFDB

49

VCOGND

48

DGND

47

V

46

f

45

ref

V

44

CPOUT

43

V

42

n.c.

41

DDA2

DDA3

DDD

DDA4

tune

21

22

23

24

25

26

27

28

29

30

n.c.

AMMIX1IN2

n.c.

AMMIX1IN1

n.c.

T1AMAGC

T2AMAGC

IAMAGC

ref(FMMIX)

V

FMMIXIN1

Fig.2 Pin configuration.

2001 Apr 12 8

31

32
n.c.

RFGND

33

34
n.c.

FMMIXIN2

35

36

IFMAGC

T2FMAGC

37

38

DAAOUT

T1FMAGC

39

DAATD

40

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

V

DDA1

V

DDA2

V

DDA3

V

DDA4

V

DDA5

V

DDA6

V

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

T

stg

T

amb

V

es

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

R

th(j-a)

10 DC CHARACTERISTICS

V

DDA1=VDDA3=VDDA4=VDDA5=VDDA6

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply voltage

V

DDA(n)

V

DDA2

V

DDD

Supply current in FM mode

I

DDD

I

DDA1

I

DDA2

I

DDA3

I

DDA4

I

DDA5

I

DDA6

I

MIX1OUT1

I

MIX1OUT2

Supply current in AM mode

I

DDD

I

DDA1

I

DDA2

I

DDA3

I

DDA4

I

DDA5

I

MIX1OUT1

I

MIX1OUT2

I

AMMIX2OUT1

I

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

V

o(ref)

R

o

I

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

V

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

f

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

V

DDA3(ripple)

f

osc

f

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

V

o(rms)

DC output voltage 5 6.1 7.2 V

AC output voltage

f

= 200 MHz − 1.5 − V

osc

(RMS value)

Crystal oscillator

f
R

xtal

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)

V

XTAL1

V

XTAL2

R

C

,

i

i

DC bias voltage 1.7 2.1 2.5 V

real part of input
impedance

V

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

I

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

I

source(cp1)h

high charge pump 1 peak

source current

I

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 −

f

= 20.5 MHz

xtal

f

= 100 kHz − 205 −

ref

f

= 50 kHz − 410 −

ref

f

= 25 kHz − 820 −

ref

f

= 20 kHz − 1025 −

ref

f

= 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

V

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

∆V

o(n)

o (T)

DAA output noise voltage FM mode; V

DAA output voltage

variation with temperature

∆V

o (step)

I

o(sink)

I

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

−10 − +10 nA

0 − 8.5 V

−−0.3 V

V

= 4.0 V;

DAAIN

V

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

V

DAAIN

V

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

T

= −40 to +85 °C;

amb

−8 − +8 mV
data byte 3 = 10101011;
V

DAATD

= 0.7 V

DAAOUT

< 8.0 V;

0.5V

LSB

V

LSB

1.5V

LSB

n = 0 to 127

DAAOUT

< 8.25 V 50 −− µA

mV

2001 Apr 12 14

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

t

st

RR ripple rejection f
C

L

DAA TEMPERATURE COMPENSATION: PIN DAATD
I

source

TC

source

IF counter (FM IF or AM IF2 counter)

N

IF

T

count(IF)

R

precount

Reference frequency for car sound processor IC; note 3

DAA output settling time 0.2V<V

DAAOUT

< 8.25 V;

−−30 µs
CL= 270 pF

DAA output load

ripple

V

DAAOUT

= 100 Hz; V

< 8.0 V; FM mode −−270 pF

=1mV − 50 − dB

DDA4

capacitance

compensation diode

0.2V<V

< 1.5 V −50 −40 −30 µA

DAATD

source current
temperature coefficient of

compensation diode

0.2V<V
T

= −40 to +85 °C

amb

DAATD

< 1.5 V;

−3 × 10

−10

− +3 × 10

−10K−1

source current

IF counter length for

− 8 − bit

AM and FM
IF counter period data byte 4: bit 7 = 1 − 2 − ms

data byte 4: bit 7 = 0 − 20 − ms

FM IF counter prescaler
ratio

data byte 4: bit 3 = 1 − 10 −
data byte 4: bit 3 = 0 − 100 −

REFERENCE FREQUENCY DIVIDER
N

ref

crystal oscillator divider
ratio

f

ref

VOLTAGE GENERATOR; PIN f
V

o(p-p)

reference frequency f

ref

AC output voltage

= 20.5 MHz − 75.368 − kHz

xtal

(peak-to-peak value)
V
R
R

O

o
L(min)

DC output voltage 3.2 3.4 3.9 V

output resistance −−50 kΩ

minimum load resistance 1 −− MΩ

AM signal channel

AM RF AGC STAGE INPUTS: PINS AMMIX1IN1 AND AMMIX1IN2
V

i(p)

RF input voltage for AGC

start level (peak value)

data byte 5: bit 5 = 0, bit 6 = 0 − 150 − mV
data byte 5: bit 5 = 1, bit 6 = 0 − 275 − mV
data byte 5: bit 5 = 0, bit 6 = 1 − 400 − mV

data byte 5: bit 5 = 1, bit 6 = 1 − 525 − mV
AM IF AGC STAGE INPUTS: PINS AMIF2IN AND AMIF2DEC
V

i(p)

IF2 input voltage (peak

AGC start level 0.20 0.27 0.35 V

value)
AM RF AGC CURRENT GENERATOR OUTPUT: PIN IAMAGC
I

sink(max)

maximum AGC sink

current

V

AMMIX1IN1

(peak value)

> 500 mV

− 272 −

60 100 170 mV

− 15 − mA

2001 Apr 12 15

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

R

o

C

o

AM RF AGC PEAK DETECTOR: PIN T2AMAGC
I

att

I

dec

AM MIXER 1 (IF1 = 10.7 MHZ)

output resistance I

=1µA1−− MΩ

IAMAGC

output capacitance − 57 pF

attack current AGC peak

detector

data byte 5: bit 5 = 1,
bit6=1;

− 3.15 − mA

AM mixer 1 input Vi=1V;

decay current AGC peak

detector

V

T2AMAGC−GND

V

AMIF2IN−AMIF2DEC

data byte 5: bit 5 = 1,
bit6=1;

=3V;

=0V

− 2.6 −µA

AM mixer 1 input Vi=0V;
V

T2AMAGC−AMMIN1IN2

V

T2AMAGC−GND

V

AMIF2IN−AMIF2DEC

= 0.25 V;

=3V;

=0V

Mixer inputs: pins AMMIX1IN1and AMMIX1IN2

R
C
V
V

i

i
I
i(max)

input resistance note 4 50 70 100 kΩ
input capacitance note 4 − 57 pF
DC input voltage 2.3 2.7 3.1 V
maximum voltage on

pin AMMIX1IN1

1 dB compression point of
AM mixer 1 output
(peak-to-peak)

Mixer outputs: pins MIX1OUT1 and MIXOUT2

R

o

C

o

V

o(max)(p-p)

output resistance note 5 100 −− kΩ
output capacitance note 5 − 57 pF
maximum output voltage

(peak-to-peak value)

I

bias

mixer bias current AM mode 4.8 6 7.2 mA

Mixer

g

m(conv)

conversion
transconductance

I

MIXOUT1

--------------------------------------------------­V

FMMIXIN1 FMMIXIN2–

g

m(conv)(T)

conversion
transconductance
variation with temperature

∆

g

m(conv)

--------------------------------­g

m(conv)

T∆×

IP3 3rd-order intermodulation RL= 2.8 kΩ(AC loadbetween

output pins)

IP2 2nd-order intermodulation RL= 2.8 kΩ(AC loadbetween

output pins)

500 −− mV

12 15 − V

2.0 2.55 3.2

−−9 × 10−4− K

mA

--------­V

−1

135 138 − dBµV

− 170 − dBµV

2001 Apr 12 16

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

V

i(n)(eq)

F noise figure of AM mixer 1 − 4.5 7.1 dB
WEATHER BAND FLAG: PIN T1AMAGC
I

L(max)

V

o(max)

V

o(min)

AM MIXER 2 (IF2 = 450 KHZ)

Mixer inputs: pins IFAMP1IN and IFAMP1DEC

R

i

C

i

V

I

V

i(max)(p)

Mixer outputs: pins AMMIX2OUT1 and AMMIXOUT2

R

0

C

o

V

o(max)(p-p)

I

bias

Mixer

g

m(conv)

g

m(conv)(T)

IP3 3rd-order intermodulation RL=4kΩ (AC load between

IP2 2nd-order intermodulation RL=4kΩ (AC load between

V

i(n)(eq)

F noise figure of AM mixer 2 − 16 19.5 dB

equivalent input noise
voltage

band limited noise;
R

= 750 Ω; RL= 2.8 kΩ

gen

(AC load between output pins)

− 5.8 −

nV

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

Hz

maximum load current −5 − +5 µA
maximum output voltage

for FM mode
minimum output voltage

for WX mode

measured with respect to
pin RFGND

measured with respect to
pin RFGND

0 − 0.5 V

5.1 6.0 6.9 V

input resistance note 6 270 330 390 Ω
input capacitance note 6 − 57 pF
DC voltage 2.4 2.7 3 V
maximum input voltage

(peak value)

1 dB compression point of
AM mixer 2 output

1.1 −− V

(peak-to-peak)

output resistance note 7 100 −− kΩ
output capacitance note 7 − 57 pF
maximum output voltage

V

= 8.5 V 12 15 − V

DDA

(peak-to-peak value)
mixer bias current AM mode 3.6 4.5 5.4 mA

conversion
transconductance

I

AMMIX2OUT1

------------------------------ ­V

IFAMP1IN

conversion

1.3 1.6 1.9

−−9 × 10−4− K

mA

--------­V

−1

transconductance
variation with temperature

g

∆

m(conv)

--------------------------------­g

m(conv)

T∆×

134 137 − dBµV

output pins)

− 170 − dBµV

output pins)

equivalent input noise
voltage

R

= 330 Ω; RL=4kΩ

gen

(AC load between output pins)

− 15 22

nV

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

Hz

2001 Apr 12 17

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

AM IF2 AGC STAGE:PINS AMIF2IN AND AMIF2DEC; note 8
V

i

V

AGC(start)

V

AGC(stop)

V

AGC(ctrl)

∆AGC AGC range between start and stop of

R

i

C

i

AM DETECTOR
V

sens(rms)

(S+N)/N maximum signal plus

THD total harmonic distortion BAF= 2.5 kHz; C

RR ripple rejection V

t

sw

t

settle

Output: pin AMAFIF2

V

o(rms)

R

o

input voltage for α = −10 dB audio

attenuation

AM soft mute on − 75 120 µV

AM soft mute off − 610µV
AGC start voltage input carrier voltage − 14 30 µV
AGC stop voltage maximum input peak voltage 1 −− V
AGC control voltage Vi= 1 mV 4.1 4.3 4.7 V

− 89 − dB

AGC; m = 0.8
input resistance 1.8 2 2.2 kΩ
input capacitance −−5pF

sensitivity voltage
(RMS value)

m = 0.3; f

= 400 Hz;

mod

BAF= 2.5 kHz; R

gen

=2kΩ;

note 8

(S+N)/N = 26 dB − 45 65 µV
(S+N)/N = 46 dB − 600 900 µV

noise-to-noise ratio

m = 0.3; f

BAF= 2.5 kHz; R

= 400 Hz;

mod

gen
AGC

54 60 − dB

=2kΩ

=22µF;
AM IF2 AGC input
Vi= 100 µV to 500 mV (RMS)

FM to AM switching time C
AM AGC settling time C

m = 0.8; f
m = 0.9; f
m = 0.8; f
m = 0.9; f

DDA2(ripple)

f

= 100 Hz;

ripple

=22µF − 1000 1500 ms

AGC

=22µF

AGC

= 400 Hz − 0.5 1 %

mod

= 400 Hz − 12 %

mod

= 100 Hz − 1.25 2.5 %

mod

= 100 Hz − 1.75 3.5 %

mod

= 100 mV (RMS);

30 40 − dB

normal operation −−1800 ms
test mode −−180 ms

AM IF2 output voltage
(RMS value)

AM stereo; m = 0

minimum at Vi=14µV 1.5 3 4.5 mV
maximum at Vi= 5.0 mV 130 180 230 mV

AM mono; m = 0.3;
f

= 400 Hz;

mod

240 290 340 mV

Vi= 100 µV to 500 mV (RMS)

output resistance AM stereo −−500 Ω

AM mono −−500 Ω

2001 Apr 12 18

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

C

o

AM IF2 LEVEL DETECTOR OUTPUT: PIN V
V

level

∆V

level

V

level(slope)

∆V

step

B

level

R

o

RR ripple rejection V

AM NOISE BLANKER; see Fig.4

output capacitance AM mono − 57 pF

; see Fig.3

level

DC output voltage Vi=10µVto1V 0 − 7V

Vi<1µV; standard setting of

0.1 0.5 0.9 V

level DAA and level slope
Vi= 1.4 mV; standard setting

1.6 2.2 2.8 V

of level DAA

step size for adjustment of

standard setting of level slope 30 40 50 mV

level starting point
slope of level voltage standard setting of level slope 650 800 950

step size for adjustment of

Vi=1.4 mV 45 60 75

level slope
bandwidth of level output

200 300 − mV

mV

--------------­20 dB

mV

--------------­20 dB

voltage
output resistance −−500 Ω

DDA1(ripple)

f

= 100 Hz;

ripple

= 100 mV (RMS);

− 40 − dB

Threshold: pin AMNBHOLD

V

O

t

sup

f

trigger

DC output voltage 4.3 4.6 5.1 V
suppression time 6 7.5 10 µs
trigger sensitivity

frequency

Noise detector output: pin TRDSMUTE

I

sink(AGC)

AM noise blanker AGC
sink current

V

AGC

AM noise blanker AGC
voltage

FM signal channel

FM RF AGC

Inputs: pins FMMIXIN1 and FMMIXIN2;

V

i(RF)(rms)

RF input voltage for start
of wide-band AGC
(RMS value)

Vp= 200 mV (peak);
V

< 1.8 V

level

Vp= 200 mV (peak);
V

> 2.2 V

level

− 1000 − Hz

−−100 Hz

Vp= 20 mV (peak) −−100 Hz

V

TRDSMUTE

=3V 35 50 65 µA

AM mixer 1 input Vi= 0 V 1.9 2.2 2.5 V

note 9

data byte 5: bit 5 = 0, bit 6 = 0 − 4 − mV
data byte 5: bit 5 = 1, bit 6 = 0 − 8 − mV
data byte 5: bit 5 = 0, bit 6 = 1 − 12 − mV
data byte 5: bit 5 = 1, bit 6 = 1 − 16 − mV

2001 Apr 12 19

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

AGC peak detector output: pin T1FMAGC

I

ch

I

dis

PIN diode drive output: pin IFMAGC

I

drive

Level voltage output: pin V

V

th

FM RF MIXER

charge current −350 −600 −850 µA
discharge current 15 25 35 µA

drive current Vo= 0.5 to 4.0 V 8 11.5 15 mA

level

threshold voltage for
narrow-band AGC

data byte 5: bit 7 = 1;
standard setting of level DAA

500 950 1400 mV

Reference voltage: pin V

V

ref

reference voltage FM mode 6.5 7.1 7.9 V

ref(FMMIX)

AM mode 2.7 3.1 3.4 V

Inputs: pins FMMIXIN1 and FMMIXIN2;

V

i(RF)(max)

maximum RF input
voltage

note 9

1 dB compression point of
FM mixer output voltage

70 100 − mV

(peak-to-peak value)

V

i(n)(eq)

R

i

C

i

Outputs: pins MIX1OUT1 and MIX1OUT2;

R

o

C

o

I

bias

V

o(max)(p-p)

equivalent input noise
voltage

R

= 600 Ω; RL= 2.8 kΩ;

gen

noise of R

not included

gen

− 2.6 3.1

nV

----------- ­Hz

input resistance − 1.4 − kΩ
input capacitance − 57 pF

note 5

output resistance 100 −− kΩ
output capacitance − 57 pF
mixer bias current FM mode 4.8 6 7.2 mA
maximum output voltage

3 −− V

(peak-to-peak value)

FM mixer

g

m(conv)

g

m(conv)(T)

conversion
transconductance

conversion

8.5 12.5 18

−−1 × 10−3− K

mA

---------

V

−1

transconductance

variation with temperature
F noise figure − 3 4.6 dB
IP3 3rd-order intermodulation 116 119 − dBµV
IRR image rejection ratio 25 30 − dB

IF AMPLIFIER 1
G gain RL= 330 Ω; Vi=1mV;

13.5 15.5 17.5 dB

note 10
F noise figure − 10 13 dB
IP3 3rd-order intermodulation 117 120 − dBµV

2001 Apr 12 20

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Inputs: pins IFAMP1IN and IFAMP1DEC;

V

i(max)(p)

maximum input voltage
(peak value)

note 10

1 dB compression point of

IF amplifier 1 output voltage

200 −− mV

(peak value)
V

i(n)(eq)

R

i

C

i

equivalent input noise
voltage

R

= 330 Ω; RL= 330 Ω;

gen

noise of R

not included

gen

− 810

nV

----------- ­Hz

input resistance 270 330 390 Ω
input capacitance − 57 pF

Output: pin IFAMP1OUT

R

o

C

o

V

o(max)(p)

output resistance 270 330 390 Ω
output capacitance − 57 pF
maximum output voltage

1.2 1.5 − V

(peak value)
IF AMPLIFIER 2
G gain RL= 330 Ω; Vi=1mV;

6.5 8.5 10.5 dB

note 11
F noise figure − 13 15 dB
IP3 3rd-order intermodulation 127 130 − dBµV

Inputs: pins IFAMP2IN and IFAMP2DEC;

V

i(max)(p)

maximum input voltage
(peak value)

note 11

1 dB compression point of

IF amplifier 2 output voltage

500 −− mV

(peak value)
V

i(n)(eq)

R

i

C

i

equivalent input noise
voltage

R

= 330 Ω; RL= 330 Ω;

gen

noise of R

not included

gen

− 10 13

nV

----------- ­Hz

input resistance 270 330 390 Ω
input capacitance − 57 pF

Output: pin IFAMP2OUT

R

o

C

o

V

o(max)(p)

output resistance 270 330 390 Ω
output capacitance − 57 pF
maximum output voltage

1.2 1.5 − V

(peak value)

FM demodulator and level detector; see Figs 5 and 6
FM LIMITER

Inputs: pins FMLIMIN and FMLIMDEC;

G gain R
R

i

C

i

input resistance 270 330 390 kΩ
input capacitance − 57 pF

note 12

gen

=50Ω 74 80 − dB

Outputs: pins QDET1 and QDET2

V

o(p-p)

output voltage
(peak-to-peak value)

measured between output
pins

2001 Apr 12 21

500 700 − mV

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

FM DEMODULATOR

Limiter decoupling: pin FMLIMDEC

R

L

C

L

RDS MPX inputs: pins FMLIMIN and FMLIMDEC;

V

start(lim)(rms)

RDS MPX output: pin QRDSMPX

V

o(rms)

I

o(max)

R

o

B bandwidth RDS MPX

PSRR power supply ripple

FM RDS inputs: pins FMLIMIN and FMLIMDEC;

V

start(lim)(rms)

V

o(sens)(rms)

FM MPX output: pin FMMPX;

V

o(rms)

α

AM

I

o(max)

(S+N)/N maximum signal plus

THD total harmonicdistortionof

load resistance 20 −− kΩ
load capacitance −−50 pF

note 12

start of limiting of RDS

αAF= −3dB − 10 15 µV
MPX output voltage
(RMS value)

RDS MPX output voltage
(RMS value)

maximum RDS MPX

∆f = 22.5 kHz; f

mod

= 57 kHz;

Vi=20µV to 1 V; note 12

180 230 280 mV

−−100 µA

output current
output resistance −−500 Ω

CL= 0; RL>20kΩ 200 300 − kHz
output

f

= 100 Hz to 20 kHz − 40 − dB

ripple

rejection

note 12

start of limiting of MPX

αAF= −3dB − 10 15 µV
output voltage
(RMS value)

sensitivity for MPX output
voltage (RMS value)

∆f = 22.5 kHz; f

mod

de-emphasis = 75 µs

= 1 kHz;

(S+N)/N = 26 dB − 10 15 µV
(S+N)/N = 46 dB − 50 75 µV

note 12

MPX output voltage
(RMS value)

∆f = 22.5 kHz; f

mod

= 1 kHz;

de-emphasis = 75 µs;

180 230 280 mV

Vi=20µVto1V;
AM suppression of MPX

output

∆f = 22.5 kHz; f

mod

= 1 kHz;

m = 0.3; de-emphasis = 75 µs

Vi= 500 µV to 300 mV 50 60 − dB
Vi=20to500µV − 40 − dB
Vi= 300 mV to 1 V − 40 − dB

maximum MPX output

−−100 µA

current

noise-to-noise ratio of
MPX output voltage

MPX output voltage

∆f = 22.5 kHz; f

de-emphasis = 75 µs;

Vi=10mV;

∆f = 75 kHz; f

de-emphasis = 75 µs;

mod

mod

= 1 kHz;

= 1 kHz;

67 70 − dB

− 0.35 0.7 %

Vi= 200 µV to 800 mV

2001 Apr 12 22

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

B bandwidth MPX output CL= 0; RL>20kΩ 200 −− kHz
PSRR power supply ripple

rejection

R
R

L(min)
o(max)

minimum load resistance 20 −− kΩ
maximum output

resistance

C

L(max)

maximum load
capacitance

MPX MUTE

α

mute

t

att

t

decay

muting depth during RDS update 60 80 − dB
attack time MPX mute C
decay time MPX mute C

RDS update: pin TRDSMUTE

I

dis

I

ch

discharge current Vo= 3 V; audio output muted 24 32 38 µA
charge current Vo= 3 V; audio output not

DEMODULATOR AFC
G

AFC

RDS MPX output: pin RDSMPX;

V

offset(DC)

AFC gain ∆f = 100 kHz 28 32 − dB

note 12

residual DC offset voltage L

FM IF LEVEL DETECTOR OUTPUT: PIN V
V

∆V

level

level

DC output voltage Vi=10µVto1V 0 − 7V

level starting point for
adjustment of step size

V

level(slope)

∆V

step

slope of level voltage standard setting of level slope 650 800 950

level slope adjustment of
step size

B

level

bandwidth of level output
voltage

R

o

output resistance −−500 Ω

f

= 100 Hz to 20 kHz − 40 − dB

ripple

−−500 Ω

−−50 pF

TRDSMUTE
TRDSMUTE

= 10 nF 0.75 1 1.25 ms
= 10 nF 0.75 1 1.25 ms

−24 −32 −38 µA

muted

= typical value

demod

Vi=10to80µV − 0.1 1 V
Vi=80µV to 800 mV − 10 30 mV

L

= ±6%

demod

Vi=10to80µV − 0.240 1 V
Vi=80µV to 800 mV − 25 500 mV

; note 12

level

Vi<1µV; standard setting of

0.2 0.6 1.1 V

level DAA

Vi= 1 mV; standard setting of

1.4 1.9 2.5 V

level DAA

standard setting of level slope 30 40 50 mV

Vi= 1 mV 45 50 75

Vi=10mV; f

= 22.5 kHz;

mod

200 300 − mV

standard setting of DAA

mV

--------------­20 dB

mV

--------------­20 dB

2001 Apr 12 23

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

RR ripple rejection V

f

ripple

RDS update

Output: pin AFHOLD

I

sink(max)

maximum sink current after first bus transmission

with AF = 1 (start of RDS

update); Vo= 0.5 V

Output: pin AFSAMPLE

I

sink(max)

maximum sink current no RDS update in progress;

Vo= 0.5 V

Test mode; note 3

Temperature compensation diode: pin DAATD

V

i(ext)

external input voltage to
clock state machine

V

V

Clock input: pin SCL

V

i(ext)

external input voltage to

V
clock DAA

Time constant output: pin T1AMAGC

V

pulse

enabling voltage of load

pin f
PLL signal

DDA1(ripple)

DAATD(L)
DAATD(H)

SCL(L)

ref

= 100 mV (RMS);

− 40 − dB

= 100 Hz

1.0 1.2 1.4 mA

1.0 1.2 1.4 mA

= 2.5 V;

2.5 − 3.5 V

= 3.5 V

=0V; V

=5V 0 − 5V

SCL(H)

in test mode 5.1 6 6.9 V

Notes

1. Measured between pins XTAL1 and XTAL2.

2. DAA conversion gain formula:

V

DAAOUT



2 0.75

× V



n

--------- ­128

0.25+×

+()× V

DAAINVDAATD

–=

DAATD

where n = 0 to 127.

3. Reference frequency pin f
a) R
b) R

=68kΩ connected to ground, activates the 2nd I2C-bus address

ext

= 100 kΩ connected to V

ext

ref

:

, sets the IC into test mode.

DDA1

4. Input parameters of AM mixer 1 measured between pins AMMIX1IN1 and AMMIX1IN2.

5. Output parameters of FM mixer and AM mixer 1 measured between pins MIX1OUT1 and MIX1OUT2.

6. Input parameters of AM mixer 2 measured between pins IFAMP1IN and IFAMP1DEC.

7. Output parameters of AM mixer 2 measured between pins AMMIX2OUT1 and AMMIX2OUT2.

8. Input parameters of AM IF2 measured between pins AMIF2IN and AMIF2DEC.

9. Input parameters of FM mixer measured between pins FMMIXIN1 and FMMIXIN2.

10. Input parameters of IF amplifier 1 measured between pins IFAMP1IN and IFAMP1DEC.

11. Input parameters of IF amplifier 2 measured between pins IFAMP2IN and IFAMP2DEC.

12. Input parameters of FM limiter measured between pins FMLIMIN and FMLIMDEC.

2001 Apr 12 24

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

V

6

level

handbook, full pagewidth

(V)

5

4

3

2

1

0

−3

10

−2

10

(1) Level DAA setting byte 6 = FFH.
(2) Level DAA setting byte 6 = 84H (standard setting).
(3) Level DAA setting byte 6 = 00H.

Fig.3 AM level output voltage (DAA) as a function of AM level circuit input voltage.

MHB484

(1)

(2)

(3)

−1

10

110

10

Vi=V

2

AMIF2IN

Vi (mV)

− V

AMIF2DEC

3

10

handbook, full pagewidth

T

rep

V

P

TEA6846H

test signal

18

19

4.7 nF

50 Ω

100 Ω

V

P

100 Ω

8.5 V

Test signal: T

= 2 ms, tr< 50 ns, tf< 50 ns, and duty factor 50%.

rep

Fig.4 Test circuit for AM noise blanker.

2001 Apr 12 25

70

V

71

level

73

1 kΩ

3 V

78

14

77

1 kΩ

4 V

8.5 V

oscilloscope,
counter

MHB883

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

V

6

level

handbook, full pagewidth

(V)

5

4

3

2

1

0

−3

10

−2

10

(1) Level DAA setting byte 6 = FFH.
(2) Level DAA setting byte 6 = 84H (standard setting).
(3) Level DAA setting byte 6 = 00H.

Fig.5 FM level output voltage (DAA) as a function of FM limiter and level circuit input voltage.

MHB486

(1)

(2)

(3)

−1

10

110

Vi=V

2

10

FMLIMIN

Vi (mV)

− V

FMLIMDEC

3

10

.

2001 Apr 12 26

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

MHB487

V

FMMPX

V

RDSMPX

(dB)

10

,

0

handbook, full pagewidth

−10

(1)

9

V

8

7

level
(V)

THD

(%)

−20

−30

−40

(2)

(3)

−50

−60

(4)

−70

(5)

−80

−3

10

(1) Output voltage for FMMPX and RDSMPX: fIF= 10.7 MHz; ∆f = 22.5 kHz; f

−2

10

−1

10

11010210

mod

(2) Noise: unweighted B = 250 Hz to 15 kHz with de-emphasis 50 µs for FMMPX.
(3) Noise: unweighted B = 250 Hz to 15 kHz with de-emphasis 50 µs for RDSMPX.
(4) THD for FMMPX and RDSMPX.
(5) Level for standard setting of level DAA, byte 6 = 84H.

= 1 kHz.

Vi=V

FMLIMIN

Vi (mV)

− V

FMLIMDEC

6

5

4

3

2

1

0

3

.

Fig.6 (S+N)/N, THD and level output voltage for FM mode as a function of FM demodulator input voltage.

2001 Apr 12 27

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

12 I2C-BUS PROTOCOL

2

12.1 I

C-bus specification

Informationaboutthe I2C-buscanbe found in the brochure

“The I2C-bus and how to use it”

(order number

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

following definitions.
IC addresses:

• 1st IC address C2: 1100001

• 2nd IC address C0: 1100000.

Structure of the I2C-bus logic: slave transceiver with auto
increment.

Subaddresses are not used.

12.1.1 TEST MODE

Connecting pin f

ref

to V

via a 100 kΩ resistor or

DDA1

feeding 50 µA into that pin switches the IC into the test
mode.

During test mode the digital-to-analog converters of the
levelandantenna DAA functions can be sequenced by the
I2C-bus SCL line.

12.1.3 I2C-bus pULL-UP RESISTORS
When the IC is used together with the TEA6880H or

TEF6890HandbothSCLandSDAlinesareconnectedvia
the I2C-bus to the TEA6880H or TEF6890H, the pull-up
resistors of the tuner IC should be connected to the digital
supply voltage of the TEA6880H or TEF6890H. Otherwise
an I2C-bus pull-down can occur switching off the tuner IC
supply when the I2C-bus buffer interface of the TEA6880H
or TEF6890H is enabled for data transfer to the tuner IC.

12.1.4 FREQUENCY SETTING
For new frequency setting, in both AM and FM mode, the

programmable divider is enabled by setting bit MUTE =1.
To select an FM frequency, two I2C-bus transmissions are
necessary:

• First: bit MUTE = 1

• Second: bit MUTE = 0.

During test mode either the TEA6880H or TEF6890H
reference frequency, the PLL reference frequency divider
or the programmable divider output can be switched to
pin f

.

ref

12.1.2 DATA TRANSFER FOR THE TEA6846H

Data sequence: address, byte 1, byte 2, byte 3, byte 4,
byte 5, and byte 6. The data transfer has to be in this
order. The LSB = 0 indicates a WRITE operation to the
TEA6846H.

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

The data becomes valid at the output of the internal
latches with the acknowledge of each byte. 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 the transfer of a byte is not completed, this byte is lost

and the previous information is available.

In byte 5, 4 bits are reserved for test mode purposes.
Those can only be used when the test mode is activated
by the select pin f

ref.

2001 Apr 12 28

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

12.2 I2C-bus protocol

12.2.1 DATA TRANSFER MODE AND IC ADDRESS

Table 1 Write mode

(1)

S

address (write) A

Table 2 Read mode

(1)

S

address (read) A

Notes to Tables 1 and 2

1. S = START condition.

2. A = acknowledge.

3. P = STOP condition.

Table 3 IC address byte

IC ADDRESS MODE

1100000/1

(2)

(2)

data byte(s) A

data byte 1

(2)

(1)

P

R/W

(3)

(2)

Notes

1. Defined by address pin f

ref

:
a) 1 = 1st IC address
b) 0 = 2nd IC address.

2. Read or write mode:
a) 0 = write operation to TEA6840H
b) 1 = read operation from TEA6840H.

12.2.2 WRITE MODE: DATA BYTE 1

Table 4 Format of data byte 1

BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0

AF PCA6 PCA5 PCA4 PCA3 PCA2 PCA1 PCA0

Table 5 Description of data byte 1 bits

BIT SYMBOL DESCRIPTION

7AFAlternative frequency. If AF = 0, then normal operation. If AF = 1, then AF (RDS)

update mode.

6 to 0 PCA[6:0] Setting of programmable counter of synthesizer PLL. Upper byte of PLL divider

word.

2001 Apr 12 29

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

12.2.3 WRITE MODE: DATA BYTE 2

Table 6 Format of data byte 2

BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0

PCB7 PCB6 PCB5 PCB4 PCB3 PCB2 PCB1 PCB0

Table 7 Description of data byte 2 bits

BIT SYMBOL DESCRIPTION

7 to 0 PCB[7:0] Setting of programmable counter of synthesizer PLL. Lower byte of PLL divider

word.

12.2.4 WRITE MODE: DATA BYTE 3

Table 8 Format of data byte 3

BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0

MUTE DAA6 DAA5 DAA4 DAA3 DAA2 DAA1 DAA0

Table 9 Description of data byte 3 bits

BIT SYMBOL DESCRIPTION

7 MUTE FM audio mute. If MUTE = 0, then FM audio not muted. If MUTE = 1, then FM audio

muted; writing to programmable divider enabled.

6 to 0 DAA[6:0] Setting of antenna digital auto alignment.

12.2.5 WRITE MODE: DATA BYTE 4

Table 10 Format of data byte 4

BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0

IFMT RFS2 RFS1 RFS0 IFPR BND1 BND0 AMFM

Table 11 Description of data byte 4 bits

BIT SYMBOL DESCRIPTION

7 IFMT IF measuring time. If IFMT = 0, then IF measuring time is 20 ms. If IFMT = 1, then

IF measuring time is 2 ms.

6 to 4 RFS[2:0] Reference frequency for synthesizer. These 3 bits determine the reference

frequency, see Table 12.

3 IFPR IF counter prescaler ratio. If IFPR = 0, then IF prescaler ratio is 100. If IFPR = 1, then

IF prescaler ratio is 10.

2 and 1 BND[1:0] Band switch. These 2 bits select in FM mode band and local or distant, see Table 13;

in AM mode band and AM stereo, see Table 14.

0 AMFM AM or FM switch. If AMFM = 0, then FM mode. If AMFM = 1, then AM mode

2001 Apr 12 30

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

Table 12 Reference frequency setting

RFS2 RFS1 RFS0 f

0 0 0 100
10 0 50
01 0 25
11 0 20
00 1 10
10 1 10
01 1 10
11 1 10

Table 13 FM mode

BND1 BND0 SELECTION

0 0 FM standard: dead zone high current charge pump active,

0 1 FM local: dead zone high current charge pump active,

1 0 FM East Europe: dead zone high current charge pump

1 1 FM weather band: N1 divider set to 1 and I and Q phase shift

(kHz)

ref

FM AGC defined by RF level and threshold level setting by
I2C-bus

FM AGC source current set to maximum

switched off, current of low current charge pump set to 1 mA

network switched on, WX flag signal activated

Table 14 AM mode; note 1

BND1 BND0 SELECTION

0 0 AM mono; N2 divider set to 5 (SW)
0 1 AM stereo; N2 divider set to 5 (SW)
1 0 AM mono; N2 divider set to 10 (LW, MW)
1 1 AM stereo; N2 divider set to 10 (LW, MW)

Note

1. In AM mode dead zone high current charge pump switched off, current of low current charge pump set to 1 mA.

2001 Apr 12 31

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

12.2.6 WRITE MODE: DATA BYTE 5

Table 15 Format of data byte 5

BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0

KAGC WBA1 WBA0 AMSM TMS3 TMS2 TMS1 TMS0

Table 16 Description of data byte 5 bits

BIT SYMBOL DESCRIPTION

7KAGCKeyed FM AGC. If KAGC= 0, then keyed FM AGC is off. If KAGC = 1, then keyed

FM AGC is on.

6 and 5 WBA[1:0] Wide band AGC. These 2 bits set the start value of wide band AGC. For AM,

see Table 17 and for FM, see Table 18.

4 AMSM AM soft mute. If AMSM = 0, then AM soft mute is off. If AMSM = 1, then AM soft mute

is on.

3 TMS3 In test mode charge pump 3-state. If TMS3 = 0, then 3-state off. If TMS3 = 1, then

3-state on.

2 TMS2 In test mode external clock for level and antenna DAA. If TMS2 = 0, then external

clock disabled. If TMS2 = 1, then external clock enabled.

1 and 0 TMS[1:0] In test mode setting of pin f

see Table 19.

. These 2 bits define the function of pin f

ref

ref

,

Table 17 Setting of wide band AGC for AM

WBA1 WBA0

0 0 150
0 1 275
1 0 400
1 1 525

Table 18 Setting of wide band AGC for FM

WBA1 WBA0

11 4
10 8
01 12
00 16

Table 19 Setting function of pin f

in test mode

ref

TMS1 TMS0 OUTPUT AT PIN f

0 0 reference frequency of TEA6880H or TEF6890H
0 1 tuner oscillator frequency divided by division ratio of

1 0 PLL synthesizer reference frequency
1 1 not used (no output)

AM MIXER 1 INPUT VOLTAGE (PEAK VALUE)

(mV)

FM RF MIXER 1 INPUT VOLTAGE (RMS VALUE)

(mV)

ref

programmable divider

2001 Apr 12 32

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

12.2.7 WRITE MODE: DATA BYTE 6

Table 20 Format of data byte 6

BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0

LST4 LST3 LST2 LST1 LST0 LSL2 LSL1 LSL0

Table 21 Description of data byte 6 bits

BIT SYMBOL DESCRIPTION

7 to 3 LST[4:0] Setting of level DAA starting point. These 5 bits determine the offset of the level

detector output voltage.

2 to 0 LSL[2:0] Setting of level DAA slope. These 3 bits determine the steepness of the level detector

output voltage.

Table 22 Standard setting of data byte 6 bits

SETTING OF LEVEL DAA STARTING POINT SETTING OF LEVEL DAA SLOPE

LST4 LST3 LST2 LST1 LST0 LSL2 LSL1 LSL0

10000100

12.2.8 READ MODE: DATA BYTE 1

Table 23 Format of 1st data byte

BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0

IFC7 IFC6 IFC5 IFC4 IFC3 IFC2 IFC1 IFC0

Table 24 Description of data byte 1 bits

BIT SYMBOL DESCRIPTION

7 to 0 IFC[7:0] IF counter result. These bits contain the last eight bits of the IF counter result.

2001 Apr 12 33

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

13 TEST AND APPLICATION INFORMATION

handbook, full pagewidth

antenna

3.3 µH

analog

6.8
µH

10
nF

10 nF

2.2
MΩ

270

nH

8.2
pF

15 pF

290 nH 290 nH

BA595

BA595

1 nF1 nF

5 V

1 kΩ

560 Ω

22
nF

270

µH

1.8 MΩ

1.5 kΩ

Coils:
L1: P826RC-5134N=S
L2: PSGAE-5078D=S
L3: P293BC-1977Z
L4: E543SNAS-02010
L5: 611SNS-1066Y
L6: 369INS-3076X
L7; 388BN-1211Z
L8: air coil
(1): 1 to 5 pF trimmer without DAA
(2): series NP0

22 kΩ

V

t

(1)

L8

22 Ω

150 µH

BAS16

L5

120 nH

L6

RFGND

10 µF

22 nF

WB FLAG

180

µH

180

pF

BF861C

BAQ806

100 nF

100

BB814

330 Ω

2.2 kΩ

15 pF

22 µF 220 nF

pF

1 nF470 pF

1 µF

1 µF

8.2 pF

150

pF

V

tune

10 kΩ

2.2 kΩ

3.9 nF

1.2 kΩ

100 nF

40

39

ANTENNA

38

37
36
35

FM

AGC

DAA

AM

3.3 nF

22 nF

4342

TUNING SYSTEM

TEA6846H

33
31
30

29

28
27

AM

RF AGC

26

23

100

nF

×

FM

I/Q MIXER

90°

×

AM

MIXER 1

22 20

DETECTOR

19 18

22
nF

22
nF

22 Ω

44 4746

WX

N1

÷2

90°

AM-NOISE

N2

÷5/10

17 16 14

f

PLL

nF

5 V

ref

digital

3.3

DGND

µH

100 nF

45

10.25 MHz

PEAK/

AVERAGE

IFAMP1

22

A

B

C

D
E

F

G

H

I

J

K

L
M
N

O

P

L7

10

kΩ

BAV99

47 Ω

2.2 MΩ

Fig.7 Application diagram (continued in Fig.8).

2001 Apr 12 34

22 Ω

22 nF

22 Ω

10 Ω

SFE10.7
MS3

MHB880

Q

L1

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

handbook, full pagewidth

A

4.7 kΩ

B

BB156

C

D
E

F

G

H

I

J
K
L

M

N

O

P

12 11 9687 5 1234

270 pF

48 49

VCO

22
nF

2.7
pF

BLANK
PULSE

(2)

L4

22 Ω

22 nF

1.8
pF

47 µF

51 58575655

50

220

nF

AF

AF

HOLD

SAMPLE

53

SEQUENTIAL
CIRCUIT FOR

RDS UPDATING

I2C-bus

×

AM

MIXER2

IFAMP2

8.5 V

AM

AUDIO/IF

6.8 nF

54

AM

DETECTOR

FM IF
AM IF2

AM

IF AGC

AM

LEVEL

LIMITER/

22
nF

22 nFIF1GND

MPX

LEVEL

DAA

Σ

FM

LEVEL

330 Ω

22 nF

MPX

MUTE

IF

COUNT

79

10 µF

FM

RDS/

5 V

analog

100 nF

47 µF

59

POWER

SUPPLY

2 ms/
20 ms

I2C-BUS

DEMODULATOR

CRYSTAL

OSCILLATOR

3.3 µH

1 µH

100

47 µF

nF

61

2

V

(I

C-bus)

DD

10
kΩ10kΩ

63
64

66

67

68

69

70

71
72
73

76

77

78

22 nF

AFC

4.7
kΩ

120

47 µF

kΩ

L2

IF2GND

AM/FM

LEVEL

20.5

MHz

220
nF

SDA
SCL

L3

SFE10.7
MS3

Q

SFR450H

Fig.8 Application diagram (continued from Fig.7).

2001 Apr 12 35

SFE10.7
MS3

22 Ω

MHB881

8.5 V

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

handbook, full pagewidth

WB

FLAG

antenna

input

470
kΩ

f

22 Ω

44 4746

WX

N1

÷2

90°

AM NOISE

N2

÷5/10

ref

22
nF

SFE10.7

PLL

45

MS3

A
B

C

100

nF

3.3
DGND

µH

100 nF

10.25 MHz

PEAK/

AVERAGE

IFAMP1

304 Ω

D

E

F

G

H

I

J

K

L
M
N
O

P

Q

R

S

FM RF input

V

tune

10 kΩ

2.2 kΩ

50 Ω

40

ANTENNA

FM

AGC

AM

RF AGC

100

DAA

nF

3.9
nF

100 nF

I/Q MIXER

90°

×

AM

MIXER1

22 20

1.2 kΩ

relay 2

AM

×

FM

22 Ω

TEA6846H

22
nF

Ce1

Ce2

47 Ω

100 nF

relay 1

teledyne

1 µF

4:6

L5

180
pF

22 nF

39
38

37
36
35

33
31
30

RFGND

29

28
27
26

220 nF

23

4.7 µF

100 nF

t

BA779-2

BA779-2

100 nF

BAQ806

22 kΩ

BAS16

120

nH

(1)

100

pF

330 pF

1 nF470 pF

560 pF

3.3 µH

470
kΩ

22 µF

100

µH

1.5 to
5 pF

22 Ω

47 µF

680

µH

1 nF

BF861C

100

nF

1 MΩ

1.2 MΩ

V

BB814

8.2

270

270

47 Ω

pF

L8
470 nH

47 pF

8.2
pF

L7

220 nH

Ω

100 nF

Ω

220

nF

1 mH

220 µH

1.5 kΩ

BAV99

1 nF

6.8
µH

relay 1

22
nF

43

42

TUNING SYSTEM

17 16 14

19 18

22
nF

L1

22 nF

22 Ω 10 Ω

3.3
nF

DETECTOR

100 nF 100 nF

AM RF

input

Fig.9 Test circuit (continued in Fig.10).

2001 Apr 12 36

330 Ω

IF

output

52 Ω 2 Ω

IF

input

MHB897

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

handbook, full pagewidth

A
B
C

4.7 kΩ

D

BB156

E

F
G

H

I

J

K

L
M
N
O
P

Q

R

S

FM

RDS/

68

6.8 nF

DETECTOR

AM

IF AGC

AM

LEVEL

100 nF100 nF

AM

AUDIO/IF

AM

100

nF

SFE10.7

MS3

100
nF

FM IF
AM IF2

LEVEL

LIMITER/

MPX

DAA

Σ

FM

LEVEL

330 Ω

100

nF

304 Ω

100
nF

COUNT

100 nF

MPX

MUTE

IF

79

22 µF

AF

AF

SAMPLE

HOLD

(1)

270 pF

L4

relay3

22 Ω

MS3

22 nF

1.8
pF

47 µF

50 51 5857565548

RDS UPDATING

220

nF

IF1GND

100 nF

304 Ω

2.7
pF

49 59

VCO

BLANK
PULSE

12 11 9687 5 1234

22
nF

SFE10.7

100 nF

53

SEQUENTIAL
CIRCUIT FOR

I2C-bus

×

AM

MIXER2

IFAMP2

100

2 kΩ

54

nF

SFR

450H

kΩ68 kΩ

100
nF

3.3 µH

100 nF

47 µF

POWER

SUPPLY

2 ms/
20 ms

I2C-BUS

DEMODULATOR

CRYSTAL

OSCILLATOR

3.3 µH

61

100 nF

63
64

66

67

68

69

70

71
72
73

76

77

78

22 nF

SDA
SCL

IF2GND

120

10 Ω

47 µF

47 µF

47 µF

10

10

kΩ

kΩ

4.7
kΩ

kΩ

L3

47 µF

20.5

MHz

220
nF

L2

22 Ω

100 nF

100 nF

10 Ω

100 nF

10 Ω

100 nF

SDA
SCL

2

I

C-bus

interface

DGND

AFC

AM/FM

LEVEL

L1: P7PSE-X398
L2: P7PSEAE-5078D = S
L3: 392BC-1977Z
L4: E543SNAS-02010
L5: 611SNS-1066Y
L6: 369INS-3076X
L7: MURATA LQN
L8: MURATA LQN
(1): series NP0

coaxial connector
test pin
jumper
to TEA6880H

5 V
analog

5 V
digital

8.5 V

FM IF1

output

330 Ω

52 Ω 2 Ω

FM IF2

input

AM IF2

input

47 Ω

FM IF2
output

330 Ω

limiter
input

52 Ω2 Ω

Fig.10 Test circuit (continued from Fig.9).

2001 Apr 12 37

2 kΩ

AM IF
output

MHB898

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

Table 25 DC operating points

UNLOADED DC VOLTAGE (V)

SYMBOL PIN

AM MODE FM MODE

MIN. TYP. MAX. MIN. TYP. MAX.

FMLIMDEC 1 2.5 3 3.5 2.5 2.8 3.1
FMLIMIN 2 2.5 3 3.5 2.5 2.8 3.1
AMIF2DEC 3 2.4 2.7 3.2 floating
IFAMP2OUT 4 7.2 7.9 − 3.4 3.9 4.4
AMNBHOLD 5 4.3 4.6 5.1 8 8.4 −
AMIF2IN 6 2.4 2.7 3.2 floating
IF1GND 7 external 0 external 0
IFAMP2IN 8 3 4 5 2.7 3.1 3.5
C

offset

9 floating 3 3.5 4
IFAMP2DEC 11 3 4 5 2.7 3.1 3.5
IFAMP1OUT 12 7.2 7.9 − 3.6 4 4.4
IFAMP1IN 14 2.4 2.7 3 2.3 2.7 3.1
V

DDA6

16 external 8.5 external 8.5
IFAMP1DEC 17 2.4 2.7 3 2.3 2.7 3.1
MIX1OUT1 18 external 8.5 external 8.5
MIX1OUT2 19 external 8.5 external 8.5
V

DDA5

20 external 8.5 external 8.5
AMMIX1IN1 22 2.3 2.75 3.1 floating
AMMIX1IN2 23 2.3 2.75 3.1 floating
T1AMAGC 26 0 2.8 4.6 0 (no WX) 0.3 (no WX) 0.5 (no WX)
T2AMAGC 27 2.5 2.8 3.1 floating
IAMAGC 28 open-collector open-collector
V

ref(FMMIX)

29 2.7 3.1 3.4 6.5 7.1 7.9
FMMIXIN2 30 1 1.3 1.6 2.3 2.8 3.3
RFGND 31 external 0 external 0
FMMIXIN1 33 1 1.3 1.6 2.3 2.8 3.3
IFMAGC 35 floating 1.5 (external

biasing)

− 4 (external
biasing)

T2FMAGC 36 7.5 8 8.3 3.9 4.6 5.3
T1FMAGC 37 floating 1 − 7
DAAOUT 38 − 0.2 0.3 0.2 − 8.25
DAATD 39 floating 0.2 − 1.5
DAAIN 40 0 − 8.5 0 − 8.5
V

tune

42 0 − 8.5 0 − 8.5
CPOUT 43 0 − 8.5 0 − 8.5
V
f

ref

DDA4

44 external 8.5 external 8.5

45 3.2 3.4 3.7 3.2 3.4 3.7

2001 Apr 12 38

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

UNLOADED DC VOLTAGE (V)

SYMBOL PIN

AM MODE FM MODE

MIN. TYP. MAX. MIN. TYP. MAX.

V

DDD

46 external 5 external 5
DGND 47 external 0 external 0
VCOGND 48 external 0 external 0
OSCFDB 49 2.2 2.8 3.4 2.2 2.8 3.4
OSCTNK 50 5 6.1 7.2 5 6.1 7.2
V

DDA3

51 external 8.5 external 8.5
AFSAMPLE 53 0 0.2 0.5 0 0.2 0.5
AFHOLD 54 open-collector open-collector
TRDSMUTE 55 1.9 2.2 2.5 0.7 (muted) 1.2 (muted) 1.7 (muted)

5.2 (not muted) 5.7 (notmuted) 6.2 (not muted)
AMAFIF2 56 4 4.3 4.6 floating
RDSMPX 57 floating 2.6 3.1 3.3
FMMPX 58 floating 3 3.5 4
V
V

DDA2
DDA1

59 external 5 external 5

61 external 8.5 external 8.5
SDA 63 4.8 5 5.2 4.8 5 5.2
SCL 64 4.8 5 5.2 4.8 5 5.2
IF2GND 66 external 0 external 0
QDET1 67 floating 3.6 4.1 4.6
QDET2 68 floating 3.6 4.1 4.6
C
V

AFC

level

69 floating 1.2 3.4 4.1

70 0.05 − 70 − 7
XTAL1 71 1.7 2.1 2.5 1.7 2.1 2.5
XTALGND 72 external 0 external 0
XTAL2 73 1.7 2.1 2.5 1.7 2.1 2.5
I

ref

76 4 4.25 4.5 4 4.25 4.5
AMMIX2OUT1 77 external 8.5 external 8.5
AMMIX2OUT2 78 external 8.5 external 8.5
C

AGC

79 3.6 4.3 4.8 4.1 4.6 5.1

2001 Apr 12 39

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

14 PACKAGE OUTLINE

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

c

y

X

A

60 41

61

Z

40

E

SOT315-1

e

w M

b

p

e

pin 1 index

b

p

D

H

21

20

w M

D

v M

Z

B

v M

D

B

80

1

0 5 10 mm

scale

DIMENSIONS (mm are the original dimensions)

UNIT

mm

A

A1A2A3b

max.

0.16

1.6

0.04

1.5

1.3

0.25

cE

p

0.27

0.18

0.13

0.12

(1)

(1) (1)(1)

D

12.1

11.9

eH

H

D

12.1

11.9

0.5

14.15

13.85

Note

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

E

A

H

E

14.15

13.85

E

A

2

A

LL

p

0.75

0.30

(A )

A

1

3

θ

L

p

L

detail X

Zywv θ

Z

E

D

1.45

0.15 0.10.21.0

1.05

1.45

1.05

o

7

o

0

OUTLINE

VERSION

IEC JEDEC EIAJ

REFERENCES

SOT315-1 136E15 MS-026

2001 Apr 12 40

EUROPEAN

PROJECTION

ISSUE DATE

99-12-27
00-01-19

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

15 SOLDERING

15.1 Introduction to soldering surface mount
packages

Thistextgivesavery brief insight to a complex technology.
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 can still be used for
certainsurfacemountICs, but it is not suitable for fine pitch
SMDs. In these situations reflow soldering is
recommended.

15.2 Reflow soldering

Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
totheprinted-circuitboardby screen printing, stencilling or
pressure-syringe dispensing before package placement.

Several methods exist for reflowing; for example,
convection or convection/infrared heating in a conveyor
type oven. Throughput times (preheating, soldering and
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 220 °C for
thick/large packages, and below 235 °C for small/thin
packages.

15.3 Wave soldering

Conventional single wave soldering is not recommended
forsurfacemountdevices (SMDs) or printed-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 is used the following conditions must be
observed for optimal results:

• Use a double-wave soldering method comprising a
turbulent wave with 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.

• Forpackageswithleads on four sides, the footprint must
be placed at a 45° angle to the transport direction of the
printed-circuit board. The footprint must incorporate
solder thieves downstream and at the side corners.

During placement and before soldering, the package 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.

15.4 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.

2001 Apr 12 41

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

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

PACKAGE

WAVE REFLOW

(1)

BGA, LFBGA, SQFP, TFBGA not suitable suitable

SOLDERING METHOD

HBCC, HLQFP, HSQFP, HSOP, HTQFP, HTSSOP, SMS not suitable

(3)

PLCC

, SO, SOJ suitable suitable
LQFP, QFP, TQFP not recommended
SSOP, TSSOP, VSO not recommended

(2)

(3)(4)
(5)

suitable

suitable
suitable

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 between the 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 is only 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 only suitable for SSOP and TSSOP packages with a pitch (e) equal to 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.

16 DATA SHEET STATUS

PRODUCT

DATA SHEET STATUS

(1)

STATUS

(2)

DEFINITIONS

Objective data Development This data sheet contains data from the objective specification for product

development. Philips Semiconductors reserves the right to change the
specification in any manner without notice.

Preliminary data Qualification This data sheet contains data from the preliminary specification.

Supplementary data will be published at a later date. Philips
Semiconductors reserves the right to change the specification without
notice, in order to improve the design and supply the best possible
product.

Product data Production This data sheet contains data from the product specification. Philips

Semiconductors reserves the right to make changes at any time in order
to improve the design, manufacturing and supply. Changes will be
communicated according to the Customer Product/Process Change
Notification (CPCN) procedure SNW-SQ-650A.

Notes

1. Please consult the most recently issued data sheet before initiating or completing a design.

2. The product status of the device(s) described in this data sheet may have changed since this data sheet was
published. The latest information is available on the Internet at URL http://www.semiconductors.philips.com.

2001 Apr 12 42

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6846H

17 DEFINITIONS Short-form specification  The data in a short-form

specification is extracted from a full data sheet with the
same type number and title. For detailed information see
the relevant data sheet or data handbook.

Limiting values definition  Limiting values given are in
accordance with the Absolute Maximum Rating System
(IEC 60134). 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
attheseoratanyotherconditionsabove 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  Applications that are
described herein for any of these products are for
illustrative purposes only. Philips Semiconductors make
norepresentationor warranty that such applications willbe
suitable for the specified use without further testing or
modification.

2

19 PURCHASE OF PHILIPS I

C COMPONENTS

18 DISCLAIMERS 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
Semiconductorscustomersusing or selling these products
for use in such applications do so at their own risk and
agree to fully indemnify Philips Semiconductors for any
damages resulting from such application.

Right to make changes  Philips Semiconductors
reserves the right to make changes, without notice, in the
products, including circuits, standard cells, and/or
software, described or contained herein in order to
improve design and/or performance. Philips
Semiconductors assumes no responsibility or liability for
theuseofany of these products, conveys no licence or title
under any patent, copyright, or mask work right to these
products,andmakesnorepresentationsorwarrantiesthat
these products are free from patent, copyright, or mask
work right infringement, unless otherwise specified.

Purchase of Philips I
components in the I2C system provided the system conforms to the I2C specification defined by
Philips. This specification can be ordered using the code 9398 393 40011.

2

C components conveys a license under the Philips’ I2C patent to use the

2001 Apr 12 43

Philips Semiconductors – a w orldwide compan y

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

Tel. [phone], Fax. [phone]
Austria: Computerstr. 6, A-1101 WIEN, P.O. Box 213,

Tel. [phone], Fax. [phone]
Belarus: Hotel Minsk Business Center, Bld. 3, r. 1211, Volodarski Str. 6,

220050 MINSK, Tel. [phone], Fax. [phone]

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

51 James Bourchier Blvd., 1407 SOFIA,
Tel. [phone], Fax. [phone]

Canada: PHILIPS SEMICONDUCTORS/COMPONENTS,
Tel. [phone], Fax. [phone]

China/Hong Kong: 501 Hong Kong Industrial Technology Centre,
72 Tat Chee Avenue, Kowloon Tong, HONG KONG,
Tel. [phone], Fax. [phone]

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

Tel. [phone], Fax. [phone]
Finland: Sinikalliontie 3, FIN-02630 ESPOO,

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254-D, Dr. Annie Besant Road, Worli, MUMBAI 400 025,
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Indonesia: PT PhilipsDevelopment Corporation, Semiconductors Division,
Gedung Philips, Jl. Buncit Raya Kav.99-100, JAKARTA 12510,
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Ireland: Newstead, Clonskeagh, DUBLIN 14,
Tel. [phone], Fax. [phone]

Israel: RAPAC Electronics, 7 Kehilat Saloniki St, PO Box 18053,
TEL AVIV 61180, Tel. [phone], Fax. [phone]

Italy: PHILIPS SEMICONDUCTORS, Via Casati, 23 - 20052 MONZA (MI),
Tel. [phone], Fax [phone]

Japan: Philips Bldg 13-37, Kohnan 2-chome, Minato-ku,
TOKYO 108-8507, Tel. [phone], Fax. [phone]

Korea: Philips House, 260-199 Itaewon-dong, Yongsan-ku, SEOUL,
Tel. [phone], Fax. [phone]

Malaysia: No. 76 Jalan Universiti, 46200 PETALING JAYA, SELANGOR,
Tel. [phone], Fax. [phone]

Mexico: 5900 Gateway East, Suite 200, EL PASO, TEXAS 79905,
Tel. [phone], Fax [phone]

Middle East: see Italy

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

Tel. [phone], Fax. [phone]
New Zealand: 2 Wagener Place, C.P.O. Box 1041, AUCKLAND,

Tel. [phone], Fax. [phone]
Norway: Box 1, Manglerud 0612, OSLO,

Tel. [phone], Fax. [phone]

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

106 Valero St. Salcedo Village, P.O. Box 2108 MCC, MAKATI,
Metro MANILA, Tel. [phone], Fax. [phone]

Poland: Al.Jerozolimskie 195 B, 02-222 WARSAW,
Tel. [phone], Fax. [phone]

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

Tel. [phone], Fax. [phone]
Singapore: Lorong 1, Toa Payoh, SINGAPORE 319762,

Tel. [phone], Fax. [phone]

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,
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Spain: Balmes 22, 08007 BARCELONA,
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Sweden: Kottbygatan 7, Akalla, S-16485 STOCKHOLM,
Tel. [phone], Fax. [phone]

Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH,
Tel. [phone] Fax. [phone]

Taiwan: Philips Semiconductors, 5F, No. 96, Chien Kuo N. Rd., Sec. 1,
TAIPEI, Taiwan Tel. [phone], Fax. [phone]

Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd.,
60/14 MOO 11, Bangna Trad Road KM. 3, Bagna, BANGKOK 10260,
Tel. [phone], Fax. [phone]

Turkey: Yukari Dudullu, Org. San. Blg., 2.Cad. Nr. 28 81260 Umraniye,
ISTANBUL, Tel. [phone], Fax. [phone]

Ukraine: PHILIPS UKRAINE, 4 Patrice Lumumba str., Building B, Floor 7,
252042 KIEV, Tel. [phone], Fax. [phone]

United Kingdom: Philips Semiconductors Ltd., 276 Bath Road, Hayes,
MIDDLESEX UB3 5BX, Tel. [phone], Fax. [phone]

United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409,
Tel. [phone], Fax. [phone]

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

Tel. [phone], Fax.[phone]

For all other countries apply to: Philips Semiconductors,
Marketing Communications, Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN,
The Netherlands, Fax. [phone]

© Philips Electronics N.V. SCA
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.

The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and 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.

2001

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

72

Printed in The Netherlands 753503/01/pp44 Date of release: 2001 Apr 12 Document order number: 9397 750 07475