JVC KD-SH9101 Service Manual page 49

QQ
3 7 63 1515 0
4.17 SAA6579T-X (IC71) : RDS detecter
• Pin layout
QUAL
DATA
Vref
MUX
V
GND
CIN
SCOUT
• Block diagram
TE
L 13942296513
• Pin function
Pin No. Symbol
1 QUAL
2 DATA
3 Vref
4 MUX
5 Vdd
6 GND
7 CIN
8 SCOUT
9 MODE
10 TEST
11 GND
12 Vdd
13 OSCI
14 OSCO
15 T57
16 CLK
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CLK
1 16
T57
2 15
OSCO
3
14
OSCI
4 13
V
5
dd 12 dd
GND
6 11
TEST
7
10
MODE
8 9
ANTI-
57 kHz
4
ALIASING BAND PASS
FILTER
(8th ORDER)
8
COSTAS LOOP
7
CLOCKED
VARIABLE AND
COMPARATOR
FIXED DIVIDER
5
VP1
CLOCK
3
REFERENCE
REGERATION
VOLTAGE
AND SYNC
6
Quality indication output
RDS data output
Reference voltage output (0.5VDDA)
Multiolex signal input
+5V supply voltage for analog part
Ground for analog part (0V)
Sub carrier input to comparator
Sub carrier output of reconstruction filter
Oscillator mode / test control input
Test enable input
Ground for digital part (0V)
+5V supply voltage for digital part
Oscillator input
Oscillator output
57 kHz clock signal output
RDS clock output
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y
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8
13
OSCILLATOR
RECONSTRUCTION
AND
FILTER
DIVIDER
BIPHASE
SYMBOL
DECODER
TEST LOGIC AND OUTPUT
SELECTOR SWITCH
9
Q Q
3 6 7 1 3
Description
u163
.
2 9 9 4 2 8
14 12
1
QUALITY BIT
GENERATOR
2
DIFFERENTIAL
DECODER
15
15
10 11
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9
(No.49841)1-49