AK5538VN Datasheet, PDF (63/70 Pages) Asahi Kasei Microsystems – 8-Channel Differential 32-bit ADC

[AK5538]
Addr Register Name
02H Control 1
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
0 CKS3 CKS2 CKS1 CKS0 DIF1 DIF0 HPFE
R/W R/W R/W R/W R/W R/W R/W R/W
0
0
0
0
0
0
0
1
HPFE: High Pass Filter Enable
0: High Pass Filter OFF
1: High Pass Filter ON (default)
When this bit is “1”, digital HPFs for all channels are ON.
DIF1-0:Audio Data Interface Mode Select (Table 8, Table 9)
Select A/D data bit length (24-bit/32-bit) and the format (MSB justified/ I2S Compatible)
CKS3-0: Sampling Speed Mode and MCLK Frequency Select (Table 5)
Select Sampling Speed and MCLK frequency.
Addr Register Name
03H Control 2
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
0 TDM1 TDM0 0
0
0
0
0
R/W R/W R/W R/W R/W R/W R/W R/W
0
0
0
0
0
0
0
0
TDM1-0: TDM Modes Select (Table 9)
Select the A/D data multiplex mode from Normal, TDM128, TDM256 and TDM512 modes.
Addr Register Name
04H Control 3
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
DP
0
0
0
0
0
SD SLOW
R/W R/W R/W R/W R/W R/W R/W R/W
0
0
0
0
0
0
0
0
SLOW: Slow Roll-off Filter Select (Table 20)
0: Sharp Roll-off (default)
1: Slow Roll-off
Select Roll-off characteristic of the digital filter.
SD: Short Delay Select (Table 20)
0: Normal Delay (default)
1: Short Delay
Select group delay of the digital filter.
DP: DSD Mode Select
0: PCM mode (default)
1: DSD mode
Select A/D Data Output Mode.
015099878-E-00
- 63 -
2016/03