Cirrus Logic CS4391 - Manual (Page 6)

CS4391
6 DS335PP4
ANALOG CHARACTERISTICS
(continued)
Notes: 17. Triangular PDF dithered data.
18. THD+N specifications for 48 kHz sample rates are made over a 20 kHz Bandwidth.
19. Valid with the recommended capacitor values on FILT+ and CMOUT as shown in Figure 1. Increasing
the capacitance will also increase the PSRR.
20. Response is clock dependent and will scale with Fs. Note that the response plots (Figures 18-25) have
been normalized to Fs and can be de-normalized by multiplying the X-axis scale by Fs.
21. For Single-Speed Mode, the Measurement Bandwidth is 0.5465 Fs to 3 Fs.
For Double-Speed Mode, the Measurement Bandwidth is 0.577 Fs to 1.4 Fs.
Parameter Symbol Min Typ Max Unit
Combined Digital and On-chip Analog Filter Response - Single Speed Mode
Passband (Note 3)
to -0.05 dB corner
to -3 dB corner
0
0 -
- .4535
.4998 Fs
Fs
Frequency Response 10 Hz to 20 kHz -.02 - +.035 dB
StopBand .5465 - - Fs
StopBand Attenuation (Note 5) 50 - - dB
Group Delay tgd - 9/Fs - s
Passband Group Delay Deviation 0 - 20 kHz - ±0.36/Fs - s
De-emphasis Error (Relative to 1 kHz)
Control Port Mode Fs = 32 kHz
Fs = 44.1 kHz
Fs = 48 kHz
Stand-Alone Mode Fs = 32 kHz
Fs = 44.1 kHz
Fs = 48 kHz
-
-
-
-
-
- -
-
-
-
-
- +.2/-.1
+.05/-.14
+0/.22
TBD
+.05/-.14
TBD
dB
dB
dB
dB
dB
dB
Combined Digital and On-chip Analog Filter Response - Double Speed Mode
Passband (Note 4)
to -0.1 dB corner
to -3 dB corner
0
0 -
- .4621
.4982 Fs
Fs
Frequency Response 10 Hz to 20 kHz -0.1 - 0 dB
StopBand .577 - - Fs
StopBand Attenuation (Note 5) 55 - - dB
Group Delay tgd - 9/Fs - s
Passband Group Delay Deviation 0 - 20 kHz - ±0.23/Fs - s
On-chip Analog Filter Response - Quad Speed Mode
Passband (Note 4)
to -3 dB corner 0 - 0.25 Fs
Frequency Response 10 Hz to 20 kHz -0.7 - 0 dB
On-chip Analog Filter Response - DSD Mode
Passband (Note 4)
to -3 dB corner 0 - 1.0 Fs
Frequency Response 10 Hz to 20 kHz -0.7 - 0 dB