Digital filter characteristics – Cirrus Logic CS8422 User Manual
Page 14
14
DS692F2
CS8422
PERFORMANCE SPECIFICATIONS - SAMPLE RATE CONVERTER
XTI-XTO = 24.576 MHz; Input signal = 1.000 kHz, Measurement Bandwidth = 20 to Fso/2 Hz, and
Word Width = 24-Bits.
Notes:
2.
Fsi indicates the input sample rate. Fso indicates the output sample rate. Numbers separated by a colon
indicate the ratio of Fsi to Fso.
DIGITAL FILTER CHARACTERISTICS
Parameter
Min Typ
Max
Units
Resolution
16
-
24
bits
Sample Rate
Slave
Master
XTI/2048
XTI/512
-
-
XTI/128
XTI/128
kHz
kHz
Sample Rate Ratio - Upsampling
-
-
1:6
Fsi:Fso
Sample Rate Ratio - Downsampling
-
-
6:1
Fsi:Fso
Interchannel Gain Mismatch
-
0.0
-
dB
Interchannel Phase Deviation
-
0.0
-
Degrees
Gain Error
-0.2
-
0
dB
Peak Idle Channel Noise Component
-
-
-144
dBFS
Dynamic Range - Unweighted (20 Hz to Fso/2, -60 dBFS Input)
32 kHz:48 kHz
-
140
-
dB
44.1 kHz:48 kHz
-
141
-
dB
44.1 kHz:192 kHz
-
138
-
dB
48 kHz:44.1 kHz
-
140
-
dB
48 kHz:96 kHz
-
141
-
dB
96 kHz:48 kHz
-
140
-
dB
192 kHz:32 kHz
-
141
-
dB
Total Harmonic Distortion + Noise (20 Hz to Fso/2, 0 dBFS Input)
32 kHz:48 kHz
-
-134
-
dB
44.1 kHz:48 kHz
-
-134
-
dB
44.1 kHz:192 kHz
-
-133
-
dB
48 kHz:44.1 kHz
-
-131
-
dB
48 kHz:96 kHz
-
-135
-
dB
96 kHz:48 kHz
-
-136
-
dB
192 kHz:32 kHz
-
-137
-
dB
Parameter
Min Typ
Max
Units
Passband (Upsampling or Downsampling)
-
-
0.4535*
min(Fsi,Fso)
Fs
Passband Ripple
-
-
± 0.05
dB
Stopband (Downsampling)
0.5465*Fso
-
-
Fs
Stopband Attenuation
125
-
-
dB
Group Delay