Pioneer 1014TX-K - THX Select A/V Receiver, Service Manual

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VSX-52TX
133
5 6 7 8
5 6
7
8
C
D
F
A
B
E
7.2 PARTS
7.2.1 IC
Pin Function
No. Pin Name I/O Pin Function Active
1 SDI1 I Digital audio data (Front L/R)
2 GNDIO
−
Interface GND
3 VDDIO
−
Interface power supply (3.3V)
4 SDO3 O Digital audio data (Surround Back L/R)
5 SDO2 O Digital audio data (Center/Subwoofer)
6 SDO1 O Digital audio data (Surround L/R)
7 SDO0 O Digital audio data (Front L/R)
8 VDDCO
−
Core power supply (1.25V)
9 PF8 O General-purpose port
10 PF6
−
General-purpose port: LOCK
11 PF7 O General-purpose port
12 GNDCO
−
Core GND
13 PF2 O General-purpose port
14 PF3 O General-purpose port
15 PF4 O General-purpose port
16 PF5 O General-purpose port
17 VDDIO
−
Interface power supply (3.3V)
18 PF1 O General-purpose port
19 PF0 O General-purpose port
20 GNDSP
−
GND for S/PDIF
21 PF9 O General-purpose port
22 SCAN I Test pin
23 PF10 O General-purpose port
24 GNDIO
−
Interface GND
H
25 VDDIO
−
Interface power supply (3.3V)
26 PB0 I General-purpose port
27 PB1 I General-purpose port L
28 GNDCO
−
Core GND
29 VDDCO
−
Core power supply (1.25V)
30 TDO O JTAG data output
31 TDI I JTAG data input
32 TCK I JTAG test clock
33 TMS I JTAG mode select
34 MOSI I Communication data input with the microcomputer
35 MISO O Communication data output with the microcomputer
36 SCK I Communication clock with the microcomputer
37 SS I Communication chip select with the microcomputer
38 HREQ O Communication request with the microcomputer
39 VDDPA
−
PLL power supply (3.3V)
40 GNDPA
−
PLL GND
L
41 VDDPP
−
PLL power supply (3.3V)
42 GNDPP
−
PLL GND
H
43 GNDPD
−
PLL GND
44 VDDPD
−
PLL power supply (1.25V)
45 EXTAL I External clock input
• The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams.
DSPA56371AF180, AK4628VQE, PD5957A, PE5403A
List of IC
DSPA56371AF180 (DSP ASSY: IC801)
• DSP Microcomputer