alc885-gr Realtek Semiconductor Corporation, alc885-gr Datasheet - Page 16

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alc885-gr

Manufacturer Part Number
alc885-gr
Description
7.1+2 Channel High-performance Hda Codec With Content Protection
Manufacturer
Realtek Semiconductor Corporation
Datasheet
6.3. Filter/Reference/NC
6.4. Power/Ground
7.1+2 Channel High-Performance HDA Codec
With Content Protection
Name
Name
Name
PCBEEP
FRONT-L
FRONT-R
SURR -L
SURR -R
CENTER
LFE
SIDESURR -L
SIDESURR -R
Sense A
Sense B
AVDD1
AVSS1
AVDD2
AVSS2
DVDD
DVSS
DVDD-IO
DVSS
VREF
MIC1-VREFO-L
LINE1-VREFO
MIC2-VREFO
LINE2-VREFO
MIC1-VREFO-R
NC
JDREF
Type Pin Description
Type Pin Description
IO
IO
IO
IO
O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
Type Pin Description
O
O
O
O
O
-
-
-
12
35
36
39
41
43
44
45
46
13
34
25
26
38
42
1
4
9
7
27
28
29
30
31
32
37
40
External PCBEEP input
Front output left channel
Front output right channel
Surround out left channel
Surround out right channel
Center output
Side output left channel
Side output right channel
Jack Detect pin l
Jack Detect pin 2
Analog VDD
Analog GND
Analog VDD
Analog GND
Digital VDD
Digital GND
Digital VDD
Digital GND
Low Frequency output
Bias voltage for MIC1 jack
2.5V Reference voltage
Bias voltage for MIC1 jack
Bias voltage for LINE1 jack
Bias voltage for MIC2 jack
Bias voltage for LINE2 jack
Not Connected
Reference resistor for Jack
detection
Table 3.
Table 4.
Filter/Reference
Power/Ground
8
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 (1.5V~3.3V)
Digital ground for HDA bus
Total: 8 Pins
Characteristic Definition
Analog input, 1.6Vrms of full scale input
Analog output (JACK -D)
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
Total: 22 Pins
Characteristic Definition
10uf capacitor to analog ground
2.5V/3.75V reference voltage
2.5V/3.75V reference voltage
2.5V/3.75V reference voltage
2.5V/3.75V reference voltage
2.5V/3.75V reference voltage
20K, 1% external resistor to analog ground
Total: 8 Pins
ALC885 Series
Datasheet
Rev. 1.1