Marantz PMD351, Service Manual

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38
No. Pin Name I/O Pin Function and Description
1 SDATA I Serial Audio Data Input - two’s complement MSB-first serial data is input on this pin.
The data is clocked into the CS4334/5/8/9 via internal or external SCLK, and the channel
is determined by LRCK.
2 DEM/SCLK I De-Emphasis/External Serial Clock Input - used for de-emphasis filter control or exter-
nal serial clock input.
3 LRCK I Left/Right Clock - determines which channel is currently being input on the Audio Serial
Data Input pin, SDATA.
4 MCLK I Master Clock - frequency must be 256x, 384x, or 512x the input sample rate in BRM and
either 128x or 192x the input sample rate in HRM.
5 AOUTR O Analog Right Channel Output - typically 3.5 Vp-p for a full-scale input signal.
6 AGND I Analog Ground - analog ground reference is 0V.
7 VA I Analog Power - analog power supply is nom5V.
8 AOUTL O Analog Left Channel Output - typically 3.5 Vp-p for a full-scale input signal.
SERIAL DATA INPUT SDATA AOUTL ANALOG LEFT CHANNEL OUTPUT
DE-EMPHASIS / SCLK DEM/SCLK VA ANALOG POWER
LEFT / RIGHT CLOCK LRCK AGND ANALOG GROUND
MASTER CLOCK MCLK AOUTR ANALOG RIGHT CHANNEL OUTPUT
7 2
6 3
5 4
8 1
LRCK
3
SDATA
1
DEM/SCLK
2
MCLK
4
VA
AOUTL
8
AOUTR
5
Serial Input
Interface
Interpolator
Interpolator
De-emphasis
Modulator
Modulator
DAC
DAC
Voltage Reference
Analog
Low-Pass
Filter
Analog
Low-Pass
Filter
7
AGND
6
∆∑
∆∑
Q303:BU2630FV
12. MICROPROCESSOR AND IC DATA
Pin descriptions
Q381:CS4338