alc203-lf Realtek Semiconductor Corporation, alc203-lf Datasheet - Page 22

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

6.1.21 MX2C PCM DAC Rate
Default: BB80h
The ALC203 allows adjustment of the output sample rate. This register is used to adjust the sample rate. By changing the values,
sampling rates from 8000 to 48000 can be chosen.
6.1.22 MX32 PCM ADC Rate
Default: BB80h
The ALC203 allows adjustment of the input sample rate. This register is used to adjust the sample rate. By changing the values,
sampling rates from 8000 to 48000 can be chosen.
Two-Channel AC’97 2.3 Audio Codec
15:0
15:0
Bit
Bit
Note that If the value written is not support, the closest value is returned.
Note that if the value written is not supported, the closest value is returned.
When MX2A.0=0 (VRA is disable), this register will return BB80h when read.
When MX2A.0=0 (VRA is disable), this register will return BB80h when read.
The ALC203 supports the following sampling rates, as required in the PC99/PC2001 design guide.
The ALC203 supports the following sampling rates, as required in the PC99/PC2001 design guide.
Type
Type
R/W
R/W
Output Sampling Rate FOSR[15:0]
Output Sampling Rate FISR[15:0]
Sampling rate
Sampling rate
11025
12000
16000
22050
24000
32000
44100
48000
11025
12000
16000
22050
24000
32000
44100
48000
8000
8000
FOSR[15:0]
18
FISR[15:0]
AC44h
AC44h
BB80h
BB80h
2B11h
7D00h
2B11h
7D00h
1F40h
3E80h
1F40h
3E80h
5622h
5622h
5DC0
5DC0
2EE0
2EE0
Function
Function
ALC203 DataSheet
Rev1.6