A/D Digital Filter Characteristics - Cirrus Logic CS42518-CQ Instructions Manual

FILT+ Nominal Voltage
Output Impedance
Maximum allowable DC current
Notes: 3. Referred to the typical full-scale voltage.
4. Measured between AIN+ and AIN-

A/D DIGITAL FILTER CHARACTERISTICS

Single Speed Mode (2 to 50 kHz sample rates)
Passband
Passband Ripple
Stopband
Stopband Attenuation
Total Group Delay (Fs = Output Sample Rate)
Group Delay Variation vs. Frequency
Double Speed Mode (50 to 100 kHz sample rates)
Passband
Passband Ripple
Stopband
Stopband Attenuation
Total Group Delay (Fs = Output Sample Rate)
Group Delay Variation vs. Frequency
Quad Speed Mode (100 to 192 kHz sample rates)
Passband
Passband Ripple
Stopband
Stopband Attenuation
Total Group Delay (Fs = Output Sample Rate)
Group Delay Variation vs. Frequency
High Pass Filter Characteristics
Frequency Response
Phase Deviation
Passband Ripple
Filter Setting Time
Notes: 5. The filter frequency response scales precisely with Fs.
6. Response shown is for Fs equal to 48 kHz. Filter characteristics scale with Fs.
8
Parameter
(-0.1 dB)
(-0.1 dB)
(-0.1 dB)
-3.0 dB
-0.13 dB
@ 20 Hz
- 5.0 -
- 35 -
- 0.01 -
Symbol
(Note 5)
(Note 5)
t
∆t
(Note 5)
(Note 5)
t
∆t
(Note 5)
(Note 5)
t
∆t
(Note 6)
(Note 6)
CS42518
- 5.0 -
- 35 -
- 0.01 -
Min Typ
0 - 0.47
±0.035
- -
0.58 -
-95 -
- 12/Fs
gd
- -
gd
0 -
±0.035
- -
0.68 -
-92 -
- 9/Fs
gd
- -
gd
0 -
±0.035
- -
0.78 -
-97 -
- 5/Fs
gd
- -
gd
- 1
20
- 10
- -
5
- 10 /Fs
V
Ω
k
mA
Max Unit
Fs
dB
- Fs
- dB
- s
µs
0.0
0.45 Fs
dB
- Fs
- dB
- s
µs
0.0
0.24 Fs
dB
- Fs
- dB
- s
µs
0.0
- Hz
- Hz
- Deg
0 dB
- s