JVC KD-S713R Service Manual page 23

SAA6579T-X (IC71) : RDS detector
1.Terminal Layout
QUAL 1 16
RDCL
RDDA 2 15
T75
Vref 3 14
OSCO
MUX 4 13
OSC1
VDDA 5 12
VDD
GND 6 11
GND
CIN 7 10
TEST
SCOUT 8 9
MODE
3.Block Diagram
ANI-
4
ALLUDING
FILTER
8
CLOCKED
7
COMPARATOR
5
REFERENCE
3
VOLTAGE
6
2.Pin Function
Pin
Symbol
No.
1
QUAL
2
RDDA
3
Vref
4
MUX
5
VDDA
6
GND
7
CIN
8
SCOUT
9
MODE
10
TEST
11
GND
12
VDD
13
OSC1
14
OSC0
15
T75
16
RDCL
5kHz
RECONSTRUCTION
BAND PASS
FILTER
(8th ORDER)
COSTAS LOOP
VARIABLE AND
FIXWD DIVIDER
CLOCK
REGENERATION
AND SYNC
I/O Function
Non connect
-
RDS data output
O
Reference voltage output
O
Multiplex signal input
I
+5V Supply voltage for analog
-
Ground for analog part (0V)
-
Sub carrier output of reconstruction filter
I
Ground for digital part (0V)
O
Ground for digital part (0V)
-
Ground for digital part (0V)
-
Ground for digital part (0V)
-
+5V supply voltage for digital part
-
Oscillator input
I
Oscillator output
O
Non connect
-
RDS clock output
O
13 14
OSCILLATOR
AND
DIVIDER
BIPHASE
SYMBOL
DECODER
TEST LOGIC AND OUTPUT
SELECTOR SWITCH
9 10
KD-S713R/KD-S711R
12
DUALITY BIT
1
GENERATOR
DIFFERENTIAL
2
DECODER
16
15
11
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