Marantz ER2500, Service Manual

Page: 27 / 68

25
IC27: AK5381
Modulator
MCLK
AINL
LRCK
SCLK
SDTO
DIF
VCOM
Clock Divider
AINR
AGND VA
Decimation
Filter
Serial I/O
Interface
Voltage Reference
CKS1
DGND VD
CKS2
Modulator
Decimation
Filter
PDN
CKS0
CKS1
VCOM
VD
DGND
AINR
AINL
AGND
VA
Top View
8
7
6
5
4
3
2
1
9
10
11
12
13
14
15
16
DIF
PDN
LRCK
MCLK
SCLK
CKS2
CKS0
SDTO
No. Pin Name I/O Function
1 AINR I Rch Analog Input Pin
2 AINL I Lch Analog Input Pin
3 CKS1 I Mode Select 1 Pin
4 VCOM O
Common Voltage Output Pin, VA/2
Bias voltage of ADC input.
5 AGND - Analog Ground Pin
6 VA - Analog Power Supply Pin, 4.5 5.5V
7 VD - Digital Power Supply Pin, 2.7 5.5V(fs=48kHz), 3.0 5.5V(fs=96kHz)
8 DGND - Digital Ground Pin
9 SDTO O
Audio Serial Data Output Pin
10 LRCK I/O
Output Channel Clock Pin
11 MCLK I Master Clock Input Pin
12 SCLK I/O
Audio Serial Data Clock Pin
13 PDN I
Power Down Mode Pin
14 DIF I
Audio Interface Format Pin
15 CKS2 I Mode Select 2 Pin
16 CKS0 I Mode Select 0 Pin
Note: All digital input pins should not be left floating.
“L” Output in Master Mode at Power-down mode.
“L” Output in Master Mode at Power-down mode.
“L” Output in Master Mode at Power-down mode.
“H”: Power up, ìLî: Power down
“H” : 24bit IS Compatible, “L”: 24bit MSB justified