JVC KS-FX460R Service Manual page 23

SAA6579T-X(IC761):RDS Detector
1.Terminal Layout
QUAL 1 16
RDDA 2 15
Vref 3 14
MUX 4 13
VDDA 5 12
GND 6 11
CIN 7 10
SCOUT 8 9
3.Block Diagram
ANI-
4
ALLUDING
FILTER
8
CLOCKED
7
COMPARATOR
5
REFERENCE
3
VOLTAGE
6
2.Pin Function
Pin
Symbol
No.
RDCL
1
QUAL
T75
2
RDDA
OSCO
3
Vref
OSC1
4
MUX
VDD
5
VDDA
GND
6
GND
TEST
7
CIN
MODE
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
KS-FX460R/KS-FX463R
12
DUALITY BIT
1
GENERATOR
DIFFERENTIAL
2
DECODER
16
15
11
1-21