alc203-lf Realtek Semiconductor Corporation, alc203-lf Datasheet - Page 10

• Manufacturer Part Number: alc203-lf
• Description: Two-channel Ac?97 2.3 Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

5.2 Analog I/O Pins
5.3 Filter/Reference/NC
5.4 Power/Ground
Two-Channel AC’97 2.3 Audio Codec
MONO-OUT/
LINE-OUT-L
LINE-OUT-R
VREFOUT3
VREFOUT2
LINE-IN-L
LINE-IN-R
HP-OUT-L
HP-OUT-R
VREFOUT
PC-BEEP
CD-GND
DC VOL
VREF
PHONE
AFILT1
AFILT2
AVDD1
AVDD2
DVDD1
DVDD2
AUX-L
AUX-R
AVSS1
AVSS2
DVSS1
DVSS2
VAUX
Name
Name
CD-L
CD-R
MIC1
MIC2
JD2
JD1
JD0
Name
NC
NC
Type Pin No
Type Pin No
Type Pin No
IO
IO
IO
IO
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
I
-
-
-
-
I
I
-
I
I
I
I
I
I
I
I
12
13
14
15
16
17
45
18
19
20
21
22
23
24
35
36
39
41
37
27
28
29
30
31
32
33
34
40
25
38
26
42
1
9
4
7
PC speaker input
Speakerphone input
AUX Left channel
AUX Right channel
Jack Detect 2 for UAJ2
Jack Detect 1 for UAJ2
Jack Detect 0 for MIC
CD audio Left channel
CD audio analog GND
CD audio Right channel
First MIC input
Second MIC input
Line input Left channel
Line input Right channel
Line-Out Left channel
Line-Out Right channel
Headphone Out Left
channel
Headphone Out Left
channel
Speaker Phone output /
Third Ref. voltage out
ADC anti-aliasing filter
ADC anti-aliasing filter
Auxiliary Power to keep CD
Digital VDD (3.3V)
Digital VDD (3.3V)
Digital GND
Digital GND
Reference voltage
Ref. voltage out
Not Connection
DC
Control
Secondary Ref. voltage out
and amplifier turned on.
Not Connection
Analog VDD
Analog VDD
Analog GND
Analog GND
Description
Description
Voltage
Description
Volume
6
Analog input (1.6Vrms)
Analog input (1.6Vrms)
Analog input/output
Analog input/output
Internally pulled high to AVDD by a 50K resistor
Internally pulled high to AVDD by a 50K resistor
Internally pulled high to AVDD by a 50K resistor
Analog input (1.6Vrms)
Analog input
Analog input (1.6Vrms)
Analog input (1.6Vrms)
Analog input (1.6Vrms)
Analog input (1.6Vrms)
Analog input (1.6Vrms)
Analog output w/o amplifier
Analog output w/o amplifier
ALC203: Analog output with amplifier / Analog input
ALC203: Analog output with amplifier / Analog input
Analog output / Third reference voltage output
(2.5V/4.0V)
1uf capacitor to analog ground
Analog DC voltage output (2.5V / 4.0V)
Analog Input (AGND~AVDD)
Analog DC voltage output (2.5V / 4.0V)
+5V analog stand-by power
1000pf capacitor to analog ground.
1000pf capacitor to analog ground.
Characteristic Definition
Characteristic Definition
Characteristic Definition
Total: 18 Pins
Total: 9 Pins
Total: 8 Pins
ALC203 DataSheet
Rev1.6