1-30 (No.49854)
4.10 SAA6579T-X (IC71):RDS detecter
• Pin layout
• Block diagram
• Pin function
QUAL
DATA
Vref
MUX
V
dd
GND
CIN
SCOUT
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
CLK
T57
OSCO
OSCI
V
dd
GND
TEST
MODE
Pin No.
Symbol
Description
1
QUAL
Quality indication output
2
DATA
RDS data output
3
Vref
Reference voltage output (0.5VDDA)
4
MUX
Multiolex signal input
5
Vdd
+5V supply voltage for analog part
6
GND
Ground for analog part (0V)
Sub carrier input to comparator
Sub carrier output of reconstruction filter
Oscillator mode / test control input
+5V supply voltage for digital part
15
T57
57 kHz clock signal output
16
CLK
RDS clock output
ANTI-
ALIASING
FILTER
CLOCKED
COMPARATOR
COSTAS LOOP
VARIABLE AND
FIXED DIVIDER
57 kHz
BAND PASS
(8th ORDER)
RECONSTRUCTION
FILTER
OSCILLATOR
AND
DIVIDER
BIPHASE
SYMBOL
DECODER
TEST LOGIC AND OUTPUT
SELECTOR SWITCH
CLOCK
REGERATION
AND SYNC
REFERENCE
VOLTAGE
DIFFERENTIAL
DECODER
QUALITY BIT
GENERATOR
8
4
7
5
VP1
3
6
11
15
15
2
1
12
14
13
9
10
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