ALC888S 查看數據表（PDF） - Realtek Semiconductor
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ALC888S
Realtek Semiconductor
ALC888S Datasheet PDF : 83 Pages
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Name
FRONT-R
SURR–L
SURR–R
CENTER
LFE
SIDE–L
SIDE–R
Sense A
Sense B
AGPIO
Type
IO
IO
IO
O
O
O
O
I
I
IO
Pin Description
36 Front Output Right Channel
39 Surround Out Left Channel
41 Surround Out Right Channel
43 Center Output
44 Low Frequency Output
45 Side Output Left Channel
46 Side Output Right Channel
13 Jack Detect Pin l
34 Jack Detect Pin 2
33 Analog General Purpose I/O
ALC888S & ALC888SDD
Datasheet
Characteristic Definition
Analog output (JACK –D)
Analog output (JACK –A)
Analog output (JACK –A)
Analog output (JACK –G)
Analog output (JACK –G)
Analog output (JACK –H)
Analog output (JACK –H)
Jack resistor network input 1
Jack resistor network input 2
Input: Vt=(1/2)*AVDD1
Output: VOH=AVDD, VOL=AVSS1
Total: 23 Pins
6.3. Filter/Reference
Name
VREF
MIC1-VREFO-L
LINE1-VREFO
MIC2-VREFO
LINE2-VREFO
MIC1-VREFO-R
PIN37-VREFO
JDREF
Type
-
O
O
O
O
O
O
-
Table 3. Filter/Reference
Pin Description
Characteristic Definition
27 2.5V Reference Voltage
10µF capacitor to analog ground
28 Bias Voltage for MIC1 Jack
2.5V/3.75V reference voltage
29 Bias Voltage for LINE1 Jack
2.5V/3.75V reference voltage
30 Bias Voltage for MIC2 Jack
2.5V/3.75V reference voltage
31 Bias Voltage for LINE2 Jack
2.5V/3.75V reference voltage
32 Bias Voltage for MIC1 Jack
2.5V/3.75V reference voltage
37 Bias Voltage for Software Select Jack 2.5V/3.75V reference voltage
40 Reference Resistor for Jack Detection 20K, 1% external resistor to analog ground
Total: 8 Pins
6.4. Power/Ground
Name
AVDD1
AVSS1
AVDD2
AVSS2
DVDD
DVSS
DVDD-IO
DVSS
Type
I
I
I
I
I
I
I
I
Table 4.
Pin Description
25 Analog VDD
26 Analog GND
38 Analog VDD
42 Analog GND
1 Digital VDD
4 Digital GND
9 Digital VDD
7 Digital GND
Power/Ground
Characteristic Definition
Analog power for mixer and amplifier
Analog ground for mixer and amplifier
Analog power for DACs and ADCs
Analog ground for DACs and ADCs
Digital power for core
Digital ground for core
Digital IO power for HDA bus
Digital ground for HDA bus
Total: 8 Pins
7.1+2 Channel High Definition Audio Codec
10
w/Two Independent S/PDIF-OUT
Track ID: JATR-1076-21 Rev. 1.2
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