JVC XT-G70RBK Service Manual page 26

RX-G7ORBK
H SAA6579T (IC192) : Radio data system demodulator
1. Terminal Layout 2. Pin Function
RDDA {2 T57
MUX |4 oscl .
VDDA |5 VDD RDDA RDS data output
GND {6 GND
CIN {7 GND Reference voltage output
ei SND MUX Multiplex signal input
VDDA +5V supply voltage for analog part
Ground for analog part (OV)
|
+5V supply voltage for digital part
Oscillator input
Oscillator output
RDS clock output
OSCO
RDCL
oO = o = = = = =
3. Block Diagram
ANTI- 57kHZ OSCILLATOR
ALIADING BANDPASS RECONSTRUCTION AND QUALITY BIT
COSTAS LOOP BIPHASE
CLOCKED
VARIABLE AND
SYMBOL
COMPARATOR FIXWD DIVIDER DECODER DECODER -
CLOCK
REFERENCE REGENERATION TEST LOGIC AND OUTPUT
VOLTEGE AND SYNC SELECTOR SWITCH
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