alc272 Realtek Semiconductor Corporation, alc272 Datasheet - Page 15

• Manufacturer Part Number: alc272
• Description: 4 Channel High Definition Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

6.
6.1. Digital I/O Pins
6.2. Analog I/O Pins
4 Channel High Definition Audio Codec
Name
RESET#
SYNC
BITCLK
SDATA-OUT
SDATA-IN
GPIO0 /
DMIC-DATA1/2
GPIO1 /
DMIC-DATA3/4
EAPD
SPDIFO1
SPDIFO2
DMIC-CLK3/4
DMIC-CLK1/2
Name
LINE2-L
LINE2-R
MIC2-L
MIC2-R
MIC1-L
MIC1-R
LINE1-L
LINE1-R
PCBEEP-IN
HPOUT-R
HPOUT-L
LOUT1-L
LOUT1-R
Pin Descriptions
Type Pin Description
Type Pin Description
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
O
O
O
O
O
O
O
O
I
I
I
I
I
33
35
11
10
47
48
45
44
46
14
15
16
17
21
22
23
24
12
32
36
6
5
8
2
3
H/W Reset
Sample Sync (48KHz)
24MHz Bit Clock Input
Serial TDM Data Input
Serial TDM Data Output
General Purpose Input/Output 0 /
Data Input for Digital Mic1/2
General Purpose Input/Output 1/
Data Input for Digital Mic3/4
External Amplifier Power Down
SPDIF Output 1
SPDIF Output 2
Clock Output for Digital Mic3/4
Clock Output for Digital Mic1/2
2
2
2
Channel
2
Right Channel
1
Channel
1
Right Channel
1
1
External PCBEEP Input
Headphone Out Right Channel
Headphone Out Left Channel
LOUT1 Output Left Channel
LOUT1 Output Right Channel
nd
nd
nd
nd
st
st
st
st
Stereo Microphone Input Left
Stereo Microphone Input
Line Input Left Channel
Line Input Right Channel
Line Input Left Channel
Line Input Right Channel
Stereo Microphone Input Left
Stereo Microphone Input
Table 2.
Table 1.
Analog I/O Pins
Digital I/O Pins
7
Characteristic Definition
V
V
V
V
In: V
Out: V
In: V
Shared with the digital MIC input data.
In: V
Shared with the digital MIC input data.
V
Output has 12 mA@75Ω driving capability.
Output has 12 mA@75Ω driving capability.
3.072M / 1.536M / 2.048M Hz
3.072M / 1.536M / 2.048M Hz
Total: 12 Pins
Characteristic Definition
Analog input/output, default is input (PORT-E-L)
Analog input/output, default is input (PORT-E-R)
Analog input/output, default is input (PORT-F-L)
Analog input/output, default is input (PORT-F-R)
Analog input/output, default is input (PORT-B-L)
Analog input/output, default is input (PORT-B-R)
Analog input/output, default is input (PORT-C-L)
Analog input/output, default is input (PORT-C-R)
Analog input, 1.6Vrms of full-scale input
Analog output (PORT-I-R)
Analog output (PORT-I-L)
Analog output (PORT-D-L)
Analog output (PORT-D-R)
t
t
t
t
OH
=0.5*DVDDIO
=0.5*DVDDIO
=0.5*DVDDIO
=0.5*DVDDIO
=DVDDIO, V
t
t
t
=0.5*DVDDIO
=0.5*DVDD; Out: V
=0.5*DVDD; Out: V
OH
=DVDDIO, V
Track ID: JATR-1076-21
OL
=DVSS
OL
=DVSS
OH
OH
=DVDD, V
=DVDD, V
Datasheet
OL
OL
ALC272
=DVSS /
=DVSS /
Rev. 1.0