Cirrus Logic CS5331A - Manual (Page 6)

6 DS138F6
CS5330A/31A
DIGITAL CHARACTERISTICS
DIGITAL FILTER CHARACTERISTICS
(FS = 48 kHz)
6. Filter characteristics scale with output sample rate.
7. The analog modulator samples the input at 6.144 MHz for an output sample rate of 48 kHz. There is no
rejection of input signals which are multiples of the sampling frequency (n x 6.144 MHz ±21.7 kHz where
n = 0,1,2,3…).
8. Group delay for Fs = 48 kHz, t gd = 15/48 kHz = 312 µs.
Parameter Symbol Min Typ Max Unit
High-Level Input Voltage V IH 2.4 - - V
Low-Level Input Voltage V IL - - 0.8 V
High-Level Output Voltage at lo = -20 µA V OH VA-1.0 - - V
Low-Level Output Voltage at lo = 20 µA V OL - - 0.4 V
Input leakage Current I in - - ±10.0 µA
Parameter Symbol Min Typ Max Unit
Passband (0.05) (Note 6) 0.02 - 21.7 kHz
Passband Ripple - - ±0.05 dB
Stopband (Note 6) 29 - 6115 kHz
Stopband Attenuation (Note 7) 80 - - dB
Group Delay (Note 8) t gd - 15/Fs - s
Group Delay Variation vs. Frequency
t
gd - - 0 µs
High Pass Filter Characteristics
Frequency Response: -3 dB (Note 6)
-0.1 dB
-
- 3.7
20
-
- Hz
Hz
Phase Deviation @ 20 Hz (Note 6) - 10 - Degree
Passband Ripple - - 0 dB