HT-CN150DVW
88
IC001, Self Tuned Radio (STR) (TEA5762)
Block Diagram:
PILFIL
FSI
FMDEM
IFGND
BUS-
CLOCK
DA
T
A
WRITE
ENABLE
FM-IFI2
FM-IFO1
FM-IFI1
37
35
33
29
28
27
17
18
21
39
38
34
7
23
4
25
AM
FM
up
down
level
26
1
5
FM-ON/OFF
V
ST
AB(A)
V
ST
AB(B)
V
CC1
V
DDD
RIPPLE
COUNTI
CGND
XT
AL
DGND
AM-RFI
AMOSC
AM-MIXER
AM-IFI1
AM-IFI/02
AGC
P1
AFO
TUNE
V
CC2
MPXI
RFGND
RFGND
P0
MO/ST
LFI
VCO
AFLO
AFRO
MUTE
AFC
AFC
(p)
AFC
(n)
TUNER
SWITCH
WINDOW
DETECT
OR
SEQUENTIAL
CIRCUIT
CHARGE
PUMP
IN-LOCK
DETECT
OR
AM/FM
DETECT
OR
FM
DETECT
OR
ST
A
TUS
REGISTER
AM
DETECT
OR
CR
YST
A
L
OSCILLA
T
O
R
PRESCALER
MUL
T
IPLEXER
AM
OSCILLA
T
O
R
AM
FRONT
END
AM
MIXER
AM
IF
AGC
FM
IF1
FM
IF2
AFC
MUTE
TEA5762
level
stereo
mono
MA
TRIX
DECODER
PLL
38kHz
19kHz
STEREO
hard
m
ute
15
14
9
12
24
16
13
19
20
32
3
11
10
8
22
30
31
44
36
41
40
6
2
PILOT
DETECT
OR
V/I
CONVER
TER
SDS
PROGRAMMABLE
COUNTER
ST
ABILIZER
SHIFT
REGISTER
LAST
-ST
A
TION
MEMOR
Y