Reference Information - Samsung DVD-A500 Service Manual

2. Reference Information

2-1 IC Descriptions
2-1-1 AIC41 (AK4324 ; Digital-to-Analog Converter)
LRCK
BICK
SDATA
PD
SMUTE
DFS
PIN I / O NAME
Digital ground pin
1 -
DVSS
I Digital power supply
2
DVDD
Master clock select pin (Internal pull-down pin)
Nomal speed "L":MCLK = 256fs, "H":MCLK = 384fs
I CKS
3
Double speed "L":MCLK = 128fs, "H":MCLK = 192fs
Master clock input pin
4 MCLK
I
Power-Down mode pin. When at "L", the AK4324 is in
5 I PD
power-down and is held in rest.
The AK4324 should always be reset upon power-pin
Audio serial data input pin
I BICK
6
64fs clock is recommended to be input on this pin
Audio serial data input pin
I
7 SDATA
2's complement MSB-first data is input on this pin.
I
8 LRCK L/R clock pin.
Soft mute pin
I SMUTE
9 When this pin goes "H", soft mute cycle is initiated
When returning "L", the output mute releases.
Double speed sampling mode pin (Internal pull-down pin)
I DFS
10
"L":normal speed, "H":double speed
I DEM0
11
De-emphasis frequency select pin
De-emphasis frequency select pin
I DEM1
12
Note : Allinput pins except internal pull-down pins should not be left floating.
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DIF0 DIF1 DIF2 DEM0
De-emphasis
Serial Input
Interface
8X
Interpolator Modulator
8X
Interpolator
Modulator
Clock Divider
MCLK CKS DVDD
FUNCTION
DEM1 AVDD AVSS
Control
∆ ∑
SCF
∆ ∑
SCF
DVSS VREF
PIN I / O NAME
I DIF0
13 Digital input format pin
14 I DIF1
Digital input format pin
I DIF2
15
Digital input format pin
Rch negative analog output pin
16 0 AOUTR-
O AOUTR+ Rch positive analog output pin
17
O AOUTL- Lch negative analog output pin
18
19 O AOUTL+ Lch positive analog output pin
AVSS Analog ground pin
20 -
21 O
VREF Voltage reference input pin
22 O
AVDD Analog power supply pin.
23
O DZFR Rch zero input detect pin
DZFL Lch zero input detect pin
24 O
DZFL
AOUTL+
AOUTL-
AOUTR+
AOUTR-
DZFR
FUNCTION
2-1