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
I / O NAME
PIN
Digital ground pin
1 -
DVSS
I Digital power supply
2
DVDD
Master clock select pin (Internal pull-down pin)
CKS Nomal speed "L":MCLK = 256fs, "H":MCLK = 384fs
I
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
9 I SMUTE
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)
10 I DFS
"L":normal speed, "H":double speed
11 I DEM0
De-emphasis frequency select pin
De-emphasis frequency select pin
12 I DEM1
Note : Allinput pins except internal pull-down pins should not be left floating.
Samsung Electronics
DIF0 DIF1 DIF2
Serial Input
Interface
8X
Interpolator
8X
Interpolator
Clock Divider
MCLK CKS
FUNCTION
DEM0 DEM1 AVDD
De-emphasis
Control
∆ ∑
Modulator
∆ ∑
Modulator
DVDD DVSS
I / O NAME
PIN
I DIF0
13
Digital input format pin
14 I DIF1
Digital input format pin
I DIF2
15
Digital input format pin
0 AOUTR- Rch negative analog output pin
16
17 O AOUTR+ Rch positive analog output pin
18 O AOUTL- Lch negative analog output pin
AOUTL+
19 O 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
AVSS
DZFL
AOUTL+
SCF
AOUTL-
AOUTR+
SCF
AOUTR-
DZFR
VREF
FUNCTION
2-1