Datasheet

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TEF6901A_3 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 03 — 20 March 2008 4 of 107 NXP Semiconductors
TEF6901A
Integrated car radio
5. Block diagram
Fig 1. Block diagram of TEF6901AH
reset
hold
fast
readhold
008aaa002
61
vco
vco
62
63
1
2
3
pll
pll
i.c.
vcm
vtc
4
5
6
7
10
11
12
8
9
13
rf rf i.c. dc mix1 if1
14 15 16 17 18 19 22 23 24 25 30 31 32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
5253545556575859605051
30
32
21
i
AM
i
FM
64
CPOUT
VCOGND
VCOTNK
VCOFDB
VCCVCO
VTUNE
VCCPLL
PLLGND
i.c.
VTCM
VTC
DAAOUT
FMMIX1IN1
FMMIX1IN2
IFMAGC
TRFAGC
VCCRF RFGND IAMAGC
i.c.
VDCPIN
VAMCASFB
VAMCAS AMMIX1REF MIX1OUT2 TAMIFKAGC AMIF2IN
V60
VREF
GND
VCC
LEVEL
RDSGND
RDDA
RDCL
DGND
SDA
RDS
SCL
ADDR
RROUT
LROUT
RFOUT
LFOUT
AGND
INDINCINBRINBLINACINARINALMPXAMIN
MPXAMOUT
XTAL1
XTAL2
MIX1OUT1 IFGND AMIF2DEC
TEF6901AH
FM
STEREO
DECODER
AM NOISE
DETECTOR
FM NOISE
DETECTOR
NOISE
BLANKER
HIGH
CUT
SNC
MULTIPATH,
LEVEL,
ADJACENT CHANNEL,
MODULATION AND
OFFSET
DETECTION
WEAK SIGNAL AND
FM BANDWIDTH
CONTROL LOGIC
HCC
BW
SM
INPUT
SELECT
DE-EMPHASIS
50 µs/75 µs
INPUT GAIN,
VOLUME,
BALANCE,
MUTE
LOUDNESS,
BASS,
TREBLE
I
2
C-BUS
TUNING
STATE
MACHINE
RDS
DEMODULATOR
FM
DEMODULATOR
AM IF NOISE
DETECTOR
FM/AM
RF AGC
CASCODE
CONTROL
IF COUNT
AUDIO STEP INTERPOLATION
F/R
FADER
DIV
f
REF
Φ
PLL
÷N
BAND
÷M
÷2
LO2 90°
soft mute
tuning
mute
ana
dig
rds
vcc
gnd
vref
6v
swap
snc
hcc
LO1 90°
ifbw
90°
90°
antenna DAA
LEVEL
USN
MOD
WAM
OFFS
AM
DEMODULATOR
26 27 28 29
IF1DEC AMMIX2OUT1
IF1IN AMMIX2OUT2
MIXER
LO2 90°
MIXER
LO2
2120
AMMIX1DEC
AMMIX1IN
LO1
MIXER
MIXER
LO1 90°