Philips TEA6840H Datasheet

INTEGRATED CIRCUITS

DATA SH EET

TEA6840H

New In Car Entertainment (NICE)
car radio

Product specification
Supersedes data of 1999 Jul 12
File under Integrated Circuits, IC01

2001 Mar 08

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6840H

CONTENTS

1 FEATURES
2 GENERAL DESCRIPTION
3 QUICK REFERENCE DATA
4 ORDERING INFORMATION
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 TEA6840H

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 Mar 08 2

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6840H

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 TEA6840H is a single IC with car radio tuner for
AM and FM intended for microcontroller tuning with the
I2C-bus providing 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.

2001 Mar 08 3

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6840H

3 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=75kHz − 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

4 ORDERING INFORMATION

TYPE

NUMBER

NAME DESCRIPTION VERSION

PACKAGE

TEA6840H QFP64 plastic quad flat package; 64 leads (lead length 1.95 mm);

body 14 × 20 × 2.8 mm

2001 Mar 08 4

SOT319-2

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2001 Mar 08 5

5 BLOCK DIAGRAM

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6840H

DAATD

DAAOUT

T1FMAGC
T2FMAGC

IFMAGC

FMMIXIN1

RFGND

FMMIXIN2

V

ref(FMMIX)

IAMAGC
T2AMAGC
T1AMAGC

VCO

BLANK
PULSE

V

10

DDA3

93456278

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

1

64
63

62

61

60

59

58

57
56
55

54

SDA
SCL

IF2GND

QDET2

QDET1

C

AFC

V

level

XTAL2
XTALGND
XTAL1

I

ref

V

DDD

10.25 MHz

DGND

TEA6840H

PEAK/

AVERAGE

CPOUTDAAIN

TUNING SYSTEM

V

DDA4

16 1314151718

WX

N1

÷2

90°

AM-NOISE

DETECTOR

N2

÷5/10

ref

V

tune

19

20

ANTENNA

21

22
23
24

25
26
27

28

29
30
31

AGC

AM

RF AGC

FM

DAA

AM

×

FM

I/Q MIXER

90°

f

OSCFDB

12 11

AMMIX1IN1

32

AM

MIXER 1

33 34

AMMIX1IN2

×

35 36

MIX1OUT1 IFAMP1DEC IFAMP1IN IFAMP1OUT IF1GND FMLIMIN

V

DDA5

MIX1OUT2

37 38 39

V

DDA6

IFAMP1

40 41 42 4543 44 46 50494847

IFAMP2DEC IFAMP2IN AMIF2IN AMIF2DEC

Fig.1 Block diagram.

C

handbook, full pagewidth

offset

IFAMP2

AMNBHOLD

IFAMP2OUT

C

FMLIMDEC

51

AGC

53

52

MGU326

AMMIX2OUT2

AMMIX2OUT1

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6840H

6 PINNING

SYMBOL PIN DESCRIPTION

V

DDA1

V

DDA2

FMMPX 3 FM demodulator MPX output
RDSMPX 4 MPX output for RDS decoder and signal processor (not muted)
AMAFIF2 5 AM demodulator AF output or IF2 output for AM stereo (multiplexed by I2C-bus)
TRDSMUTE 6 time constant for RDS update mute
AFHOLD 7 AF hold flag output for car audio signal processor IC
AFSAMPLE 8 AF sample flag output for car audio signal processor IC
V

DDA3

OSCTNK 10 VCO tank circuit
OSCFDB 11 VCO feedback
VCOGND 12 VCO ground
DGND 13 digital ground
V

DDD

f

ref

V

DDA4

CPOUT 17 charge pump output
V

tune

DAAIN 19 input of digital auto alignment circuit for antenna tank circuit
DAATD 20 temperature compensation diode of digital auto alignment circuit for antenna tank circuit
DAAOUT 21 output of digital auto alignment circuit for antenna tank circuit
T1FMAGC 22 1st time constant of FM front-end AGC
T2FMAGC 23 2nd time constant of FM front-end AGC
IFMAGC 24 PIN diode drive current output of FM front-end AGC
FMMIXIN1 25 FM RF mixer input 1
RFGND 26 RF ground
FMMIXIN2 27 FM RF mixer input 2
V

ref(FMMIX)

IAMAGC 29 PIN diode drive current output of AM front-end AGC
T2AMAGC 30 2nd time constant of AM front-end AGC
T1AMAGC 31 1st time constant of AM front-end AGC
AMMIX1IN1 32 AM mixer 1 input 1
AMMIX1IN2 33 AM mixer 1 input 2
V

DDA5

MIX1OUT1 35 FM mixer and AM mixer 1 IF output 1 (10.7 MHz)
MIX1OUT2 36 FM mixer and AM mixer 1 IF output 2 (10.7 MHz)
IFAMP1DEC 37 AM mixer 2 and FM IF amplifier 1 decoupling
V

DDA6

IFAMP1IN 39 IF amplifier 1 and AM mixer 2 input (10.7 MHz)
IFAMP1OUT 40 IF amplifier 1 output (10.7 MHz)

1 analog supply voltage 1 (8.5 V) for on-chip power supply
2 analog supply voltage 2 (5 V) for on-chip power supply

9 analog supply voltage 3 (8.5 V) for VCO

14 digital supply voltage (5 V)
15 reference frequency output for signal processor IC
16 analog supply voltage 4 (8.5 V) for tuning PLL

18 tuning voltage

28 reference voltage for FM I/Q mixer

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

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

2001 Mar 08 6

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6840H

SYMBOL PIN DESCRIPTION

IFAMP2DEC 41 IF amplifier 2 decoupling and AGC capacitor for AM noise blanker
C

offset

IFAMP2IN 43 IF amplifier 2 input (10.7 MHz)
IF1GND 44 AM IF1 ground
AMIF2IN 45 AM IF2 input (450 kHz) for demodulator AGC and AM level detector
AMNBHOLD 46 AM noise blanker threshold
IFAMP2OUT 47 IF amplifier 2 output (10.7 MHz)
AMIF2DEC 48 decoupling for AM IF2 input
FMLIMIN 49 FM limiter input (10.7 MHz)
FMLIMDEC 50 FM limiter decoupling
C

AGC

AMMIX2OUT1 52 AM mixer 2 output 1 (450 kHz)
AMMIX2OUT2 53 AM mixer 2 output 2 (450 kHz)
I

ref

XTAL1 55 crystal oscillator 1
XTALGND 56 crystal oscillator ground
XTAL2 57 crystal oscillator 2
V

level

C

AFC

QDET1 60 quadrature demodulator tank 1
QDET2 61 quadrature demodulator tank 2
IF2GND 62 AM IF2 ground
SCL 63 I2C-bus clock line input
SDA 64 I2C-bus data line input and output

42 DC feedback for offset compensation RDS mute

51 AM IF AGC capacitor

54 reference current for power supply

58 level voltage output for AM and FM
59 FM demodulator AFC capacitor

2001 Mar 08 7

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6840H

handbook, full pagewidth

AFC

V

DDA1

V

DDA2

FMMPX

SCL

IF2GND

SDA
64

63

1
2
3

QDET2

QDET1

62

61

60

level

XTAL2
57

XTALGND
56

V

C

59

58

XTAL1
55

ref

I

AMMIX2OUT2

54

53

AMMIX2OUT1
52

C

51

AGC

FMLIMDEC

50

FMLIMIN

49
RDSMPX
AMAFIF2

TRDSMUTE

AFHOLD

AFSAMPLE

V

DDA3

OSCTNK
OSCFDB

VCOGND

DGND

V

DDD

f

ref

V

DDA4

CPOUT

V

tune

DAAIN

4
5
6
7
8
9

23

24

IFMAGC

T2FMAGC

TEA6840H

25

26

RFGND

FMMIXIN1

27

28

FMMIXIN2

ref(FMMIX)

V

29

30

IFMAGC

T2AMAGC

31

T1AMAGC

10
11
12
13
14
15
16
17
18
19

20

21

22

DAATD

DAAOUT

T1FMAGC

AMIF2DEC

48

IFAMP2OUT

47

AMNBHOLD

46

AMIF2IN

45

IF1GND

44

IFAMP2IN

43

C

42

IFAMP2DEC

41

IFAMP1OUT

40

IFAMP1IN

39

V

38

IFAMP1DEC

37

MIX1OUT2

36

MIX1OUT1

35

V

34

AMMIX1IN2

33

32

MHB483

AMMIX1IN2

offset

DDA6

DDA5

Fig.2 Pin configuration.

2001 Mar 08 8

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6840H

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

occursattheFM 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 Mar 08 9

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6840H

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.

Triggersensitivitycanbemodifiedbychanging the resistor
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
V
V
V
V
V
V
T
T
V

DDA1
DDA2
DDA3
DDA4
DDA5
DDA6
DDD
stg
amb
es

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
storage temperature −55 +150 °C
ambient temperature −40 +85 °C
electrostatic handling voltage note 1 −200 +200 V

note 2 −2000 +2000 V

Notes

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

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

9 THERMAL CHARACTERISTICS

SYMBOL PARAMETER CONDITIONS VALUE UNIT

R

th(j-a)

thermal resistance from junction to ambient in free air 48 K/W

2001 Mar 08 10

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6840H

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

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

Supply current in FM mode

I

DDD

I

DDA1

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

supply

I

DDA2

analog supply current 2 for on-chip power
supply

I

DDA3

I

DDA4

I

DDA5

I

DDA6

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

analog supply current 5 for FM RF − 5 − mA
analog supply current 6 for FM IF

amplifier 1 and 2

I

MIX1OUT1

I

MIX1OUT2

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

Supply current in AM mode

I

DDD

I

DDA1

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

supply

I

DDA2

analog supply current 2 for on-chip power
supply

I

DDA3

I

DDA4

I

DDA5

I

MIX1OUT1

I

MIX1OUT2

I

AMMIX2OUT1

I

AMMIX2OUT2

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

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

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

= 8.5 V; V

DDA2

=5V; V

DDD

bit TMS3 = 1

bit TMS3 = 1

ref

=5V; T

=25°C; unless otherwise specified.

amb

− 15 − mA

6.5 8.1 9.8 mA

− 2.9 − mA

12 14 16 mA

− 17.5 − mA

4.7 5.9 7.1 mA

− 1.6 − mA

2001 Mar 08 11

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6840H

11 AC CHARACTERISTICS

V

DDA1=VDDA3=VDDA4=VDDA5=VDDA6

otherwise specified.

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Voltage controlled oscillator

f

osc

oscillator frequency 151.2 − 248.2 MHz

C/N carrier-to-noise ratio f

RR ripple rejection f

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

(RMS value)

Crystal oscillator

f
R

xtal

xtal

crystal frequency 20.4996 20.5 20.5004 MHz

crystal motional

resistance
C

xtal

crystal shunt capacitance −−18 pF
C/N carrier-to-noise ratio f

= 8.5 V; V

= 200 MHz; ∆f = 10 kHz − 101 −

osc

ripple

V

DDA3(ripple)

f

osc

f

osc

f

= 200 MHz − 1.5 − V

osc

DDA2

=5V; V

DDD

=5V; T

=25°C; see Figs 9 and 10; unless

amb

= 100 Hz;

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

start of operating −−500 Ω

= 20.5 MHz (10.25 MHz);

xtal

− 112 −

∆f=10kHz

dBc

----------- ­Hz

dBc

----------- ­Hz

C

IRCUIT INPUTS: PINS XTAL1, XTAL2 AND XTALGND

V

xtal(rms)

crystal voltage

note 1 − 350 − mV

(RMS value)

V

XTAL1

V

XTAL2

R

i

C

i

I

XTALGND

,

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
crystal oscillator circuit

current

start-up at
V

XTAL1=VXTAL2

operating at
V

XTAL1

− V

XTAL2

Oscillator divider N1

N1 oscillator divider ratio FM mode:

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

2001 Mar 08 12

= 1 mV;

= 2.1 V

= ±400 mV

−500 −− Ω

− 9 − mA

− 1.5 − mA

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6840H

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Oscillator divider N2

N2 oscillator divider ratio AM mode

SW − 10 −
LW and MW − 5 −

Synthesizer

PROGRAMMABLE DIVIDER
N

prog

∆N

step

REFERENCE FREQUENCY DIVIDER
N

ref

CHARGE PUMP: PIN CPOUT
I

sink(cp1)l

I

source(cp1)l

I

sink(cp1)h

I

source(cp1)h

I

sink(cp2)

I

source(cp2)

I

, I

Z(cp1)

CHARGE PUMP: PIN V
I

sink(cp3)

I

source(cp3)

I

Z(cp3)

programmable divider
ratio

programmabledivider step
size

crystal oscillator divider
ratio

low charge pump 1 peak
sink current

low charge pump 1 peak
source current

high charge pump 1 peak
sink current

high charge pump 1 peak
source current

charge pump 2 peak sink
current

charge pump 2 peak
source current

charge pump 1 or 2

Z(cp2)

current in 3-state

tune

charge pump 3 peak sink
current

charge pump 3 peak
source current

charge pump 3 current in
3-state

512 − 32767

− 1 −

f

= 20.5 MHz

xtal

f

= 100 kHz − 205 −

ref

f

= 500 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

FM standard mode;

0.4V<V
FM standard mode;

0.4V<V
0<V

tune

< 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

2.1 3 3.9 mA

< 7.6 V

tune

−3.9 −3 −2.1 mA

< 7.6 V

tune

< 8.5 V −5 − +5 nA

2001 Mar 08 13

Philips Semiconductors Product specification

New In Car Entertainment (NICE) car radio TEA6840H

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Antenna Digital Auto Alignment (DAA)

DAA INPUT: PIN DAAIN
I

bias(cp)

V

i(cp)

DAA OUTPUT: PIN DAAOUT; note 2
V

o(AM)

V

o(FM)

V

o(n)

∆V

o(T)

∆V

o(step)

I

o(sink)

I

o(source)

t

st

RR ripple rejection f
C

L

charge pump buffer input
bias current

charge pump buffer input

FM mode;

0.4V<V
AM mode;

0V<V

DAAIN

DAAIN

−10 − +10 nA

< 8.0 V

−10 − +10 nA

< 8.5 V

0 − 8.5 V

voltage

DAA output voltage in

−−0.3 V

AM mode
DAA output voltage in

FM mode

V

DAAIN

V

DAATD

= 4.0 V;

= 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
V

= 3.0 V;

DAAIN

= 0.7 V; bits DAA[6:0]

DAATD

6.2 6.5 6.8 V

set to logic 1
V

DAAIN

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

DAA output noise voltage FM mode; V

DAAIN

=4V;

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

DAA output voltage
variation with temperature

DAA step accuracy FM mode; V

T

= −40 to +85 °C;

amb

data byte 3 = 10101011;
V

DAATD

= 0.7 V

DAAOUT

< 8.0 V;

−8 − +8 mV

0.5V

LSB

V

LSB

1.5V

LSB

mV

n = 0 to 127

DAA output sink current 0.2V<V

DAAOUT

< 8.25 V 50 −− µA
DAA output source current −−−50 µA
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

2001 Mar 08 14