AK5373 AKM [Asahi Kasei Microsystems], AK5373 Datasheet - Page 17

• Manufacturer Part Number: AK5373
• Description: 24-bit Stereo ADC with USB Interface
• Manufacturer: AKM [Asahi Kasei Microsystems]

■
The ADC has a digital high pass filter for DC offset cancellation. The cut-off frequency of the HPF is 0.93Hz at
fs=48kHz. The digital high pass filter cut-off frequency scales with the sampling rate (fs). The HPF is always enabled.
■
The AK5373 supports 8bit, 16bit and 24bit audio data format and outputs LSB first to USB bus.
MS1202-E-00
Sample #
bit position
Digital High Pass Filter
Audio Data Format
1) 8bit mono data format on the USB
2) 16bit stereo data format on the USB
3) 24bit stereo data format on the USB
Sample #
bit position
Lower
8 bit
0-7
Sample #
bit position
L-ch data
Middle
Lower
8-15
8 bit
8 bit
0-7
L-ch data
Upper
16-23
8 bit
Upper
8 bit
8-15
#1
Table 5. Audio Data Format for 16bit stereo
Table 6. Audio Data Format for 24bit stereo
mono
Table 4. Audio Data Format for 8bit mono
8 bit
0-7
#1
Lower
#1
8 bit
0-7
Lower
8 bit
0-7
R-ch data
R-ch data
Middle
8 bit
8-15
Upper
8 bit
8-15
Upper
16-23
- 17 -
8 bit
mono
8bit
0-7
#2
Lower
8 bit
Lower
0-7
8 bit
0-7
L-ch data
L-ch data
Middle
Upper
8 bit
8-15
8 bit
8-15
mono
8 bit
0-7
#3
#2
Upper
16-23
8 bit
Lower
8bit
0-7
R-ch data
#2
Lower
8 bit
0-7
Upper
8 bit
8-15
···
···
···
···
R-ch data
Middle
8 bit
8-15
···
···
···
···
Upper
8 bit
16-23
[
AK5373]
2010/06
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