Nexo NXAMP 4X4 Service Manual

■
LSI PIN DESCRIPTION
（LSI 端子機能表）
•
PCM1803ADBR (X7357B0) A/D CONVERTER
CONTROL: IC035, IC036, IC037, IC038
(1) Schmitt trigger input
(2) Schmitt trigger input with internal pulldown (50 kΩ, typically), 5 V tolerant
(3) Schmitt trigger input, 5 V tolerant
PIN
NO.
NAME I/O FUNCTION
1V
IN
L I Analog input, L-channel
2V
IN
R I Analog input, R-channel
3V
REF
1 – Reference voltage 1 decoupling capacitor
4V
REF
2 – Reference voltage 2 decoupling capacitor
5V
CC
– Analog power supply, 5 V
6 AGND – Analog GND
7
PDWN I Power-down control, active-low
(2)
8 BYPAS I HPF bypass control / LOW: Normal mode (dc reject); HIGH: Bypass mode (through)
(2)
9 TEST I Test, must be connected to DGND
(2)
10 LRCK I/O Audio data latch enable input/output
(1)
11 BCK I/O Audio data bit clock input/output
(1)
12 DOUT O Audio data digital output
13 DGND – Digital GND
14 V
DD
– Digital power supply, 3.3 V
15 SCKI I System clock input: 256 fs, 384 fs, 512 fs or 768 fs
(3)
16 OSR I Oversampling ratio select input / LOW: x 64 fs, HIGH: x 128 fs
(2)
17 FMT0 I Audio data format select input 0 / See data format section
(2)
18 FMT1 I Audio data format select input 1 / See data format section
(2)
19 MODE0 I Mode select input 0 / See data format section
(2)
20 MODE1 I Mode select input 1 / See data format section
(2)
NXAMP4x4
37

Nexo NXAMP 4X4 Specifications

General

Brand	Nexo
Model	NXAMP 4X4
Category	Recording Equipment
Language	English