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4.6 SAA6579T-X(IC761): RDS detecter
• Pin layout
QUAL
DATA
MUX
GND
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
www
16
CLK
.
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CLK
1
16
T57
2
15
Vref
OSCO
3
14
OSCI
4
13
V
V
dd
5
12
dd
GND
6
11
CIN
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
x
ao
y
i
http://www.xiaoyu163.com
8
13
OSCILLATOR
RECONSTRUCTION
AND
FILTER
DIVIDER
BIPHASE
SYMBOL
DECODER
TEST LOGIC AND OUTPUT
SELECTOR SWITCH
Q Q
3
6 7
1 3
9
Description
u163
.
KS-FX483R,KS-FX480R,KS-FX43R
2 9
9 4
2 8
14
12
1
QUALITY BIT
GENERATOR
2
DIFFERENTIAL
DECODER
15
15
1 5
0 5
8
2 9
9 4
10
11
m
co
9 9
2 8
9 9
(No.49812)1-21
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