Pioneer VSX-321-K-P Service Manual page 32

1
A • Pin Function
No. Name
1 ZR1/ZR1/FMT0
2
MS/ADR/FMT1
3 MC/SCL/DEMP
4 MD/SDA/MUTE
5 SCK
6 DATA1
7
BCK
8 LRCK
B
9 V
DD
10 DGND
11 DATA2
12 DATA3
13 DATA4
14 MSEL
15 V
OUT8
16 V
OUT7
17 V
CC1
18 AGND1
19 V
OUT6
C
20 V
OUT5
21 V
OUT4
22 V
OUT3
23 V
CC2
24 AGND2
25 V
COM
26 V
OUT2
27 V
OUT1
28 ZR2
(1) Schmitt-trigger input.
(2) 5-V tolerant.
(3) Open-drain output in I2C mode.
D
(4) V /2 biased, quad state input.
DD
E
F
32
1
2
In/Out
I/O Zero-flag output 1 for SPI, zero-flag output 1 for I2C, format control input 0 for H/W(1)
I Select input for SPI, address input for I2C, format control input 1 for H/W (1) (2)
I Shift clock input for SPI, serial clock input for I2C, de-emphasis control for H/W (1) (2)
I/O Serial data input for SPI, serial data input/output for I2C, mute control for H/W (1) (2) (3)
I System clock input. Input frequency is 128, 192, 256, 384, 512, 768, or 1152 fS. (1) (2)
I Serial audio data input for V
I Shift clock input for serial audio data (1) (2)
I Left and right clock input. The frequency of this clock is equal to the sampling rate, fS. (1) (2)
— Digital power supply, 3.3-V
— Digital ground
I Serial audio data input for V
I Serial audio data input for V
I Serial audio data input for V
I Mode control select, I2C, H/W with narrow mode O/S, H/W with wide mode O/S, SPI select(1) (4)
O Voltage output for audio signal corresponding to R-ch on DATA4
O Voltage output for audio signal corresponding to L-ch on DATA4
— Analog power supply, 5-V
— Analog ground
O Voltage output for audio signal corresponding to R-ch on DATA3
O Voltage output for audio signal corresponding to L-ch on DATA3
O Voltage output for audio signal corresponding to R-ch on DATA2
O Voltage output for audio signal corresponding to L-ch on DATA2
— Analog power supply, 5-
— Analog ground
— Common voltage output. This pin should be bypassed with a 10-mF capacitor to AGND.
O Voltage output for audio signal corresponding to R-ch on DATA1
O Voltage output for audio signal corresponding to L-ch on DATA1
O Zero-flag output 2
HTP-071
2
3
Description
and V (1) (2)
OUT1 OUT2
and V (1) (2)
OUT3 OUT4
and V (1) (2)
OUT5 OUT6
and V (1) (2)
OUT7 OUT8
3
4
4