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2
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Marantz
Technical Service Manual
ASAHI KASEI
[AK4386]
MS0280-E-00
2003/12
- 3 -
PIN/FUNCTION
No.
Pin Name
I/O
Function
1
MCLK
I
Master Clock Input Pin
2
BICK
I
Audio Serial Data Clock Pin
3
SDTI
I
Audio Serial Data Input Pin
4
LRCK
I
Input Channel Clock Pin
5
PDN
I
Full Power Down Mode Pin
“
L
”
: Power down,
“
H
”
: Power up
6
DFS0
I
Sampling Speed Select 0 Pin
7
DFS1
I
Sampling Speed Select 1 Pin
8
DEM
I
De-emphasis Filter Enable Pin
“
L
”
: OFF,
“
H
”
: ON (De-emphasis of fs=44.1kHz is enable.)
9
DIF0
I
Audio Interface Format 0 Pin
10
ROUT
O
Rch Analog Output Pin
11
LOUT
O
Lch Analog Output Pin
12
VCOM
O
Common Voltage Output Pin, 0.55
×
VDD
Normally connected to VSS with a 4.7
µ
F (min. 1
µ
F, max. 10
µ
F) electrolytic
capacitor.
13
VSS
-
Ground Pin
14
VDD
-
Power Supply Pin, 2.2
∼
3.6V
15
DIF1
I
Audio Interface Format 1 Pin
16
TEST
I
TEST Pin
This pin should be connected to VDD.
Note: All digital input pins should not be left floating.
n
Handling of Unused Pin
The unused output pins should be processed appropriately as below.
Classification
Pin Name
Setting
Analog
LOUT, ROUT
This pin should be open.
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