Pioneer GEX-P900DAB Service Manual page 38

GEX-P900DAB
*MN6577H
24
25
36
37
- Pin Functions (SAA3500)
Pin No. Pin Name
1,2 NC
3 GND1
4 OSC
5 NC
6 VDD1
7 GND2
8-17 INP[0-9]
18 GND3
19 ADCLK
20 IQSELECT
bypass
21
fsi
22
fso
23
24 AGC LOCK
25 AGCW
26 GND4
27 OCLK
28 VDD2
29 OIQ
ocir
30
oen
31
32-39 OUT[0-7]
40 GND5
41 MCLK
42 VDD3
43 REF
44-46 SOV3-1
47,48 SOD3,2
49 SOD1
38
13
12
1
48
I/O Function and Operation
Connect to ground for proper operation.
Digital ground
I System clock input 24.576 MHz
Do not connect !
Voltage supply + 3V
Digital ground
I 2 MHz IF of Baseband digital parallel input data (10 bits)
Digital ground
O A/D clock output 8.192 MHz if BYP=high, 4.096 MHz if BYP=low.
I Clock signal indicating I or Q Baseband data if BYP=low.
Signal for swapping I and Q data bytes if BYP=high.
I IF input stage bypass if BYP=low.
I Frame sync Input (low indicates DAB null symbol detection).
O Frame sync output (low indicates DAB null symbol position)
Not used
Not used
Digital ground
O Output data clock (negative edge indicates new data)
Voltage supply + 3V
O Output I or Q select signal or frame trigger ( if OIQ=high)
I Output select baseband if OIQ=1, CIR if OIQ=0
I OUT enable (if low)
O Baseband or channel impulse response output.
Digital ground
O Master clock output 24.576 MHz
Voltage supply + 3V
O Receiver error flag (from viterbi decoder)
O Serial output valid data 3-1
O Serial output data 3,2
O Serial output data 1 (from channel decoder)
IC's marked by* are MOS type.
Be careful in handling them because they are very
liable to be damaged by electrostatic induction.