AK5394A Datasheet, PDF (16/24 Pages) Asahi Kasei Microsystems – Super High Performance 192kHz 24-Bit ADC

ASAHI KASEI
[AK5394A]
VA, VD
RSTN
Settling Time of VREF pin:T(s)
0.005 x C
150ns~1ms
tRTW
tRTV
tRCF
CAL
SDATA
tRCR
Figure 6. Reset & Calibration Timing
„ Digital High Pass Filter
The AK5394A includes a digital high pass filter for DC offset cancellation. The cut-off frequency of the HPF is 1Hz at
fs=48kHz (Normal Speed Mode), at fs=96kHz (Double Speed Mode), at fs=192kHz (Quad Speed Mode) and also scales
with sampling rate (fs) respectively.
Sampling Speed DFS1 DFS0 fc (Cut-off frequency)
Normal
L
L
fs/48kHz
Double
L
H
fs/96kHz
Quad
H
L
fs/192kHz
Table 5. Cut-off frequency
MS0137-E-01
- 16 -
2002/07