Owner's manual

12 DS782F2
CS4349
2.5 Combined Interpolation and On-Chip Analog Filter Response
The filter characteristics have been normalized to the sample rate (Fs) and can be referenced to the desired
sample rate by multiplying the given characteristic by Fs. Amplitude vs. Frequency plots of this data are
available in the “Filter Plots” on page 36.
Notes: 5. Response is clock dependent.
6. The Measurement Bandwidth is from stopband to 3 Fs.
7. De-emphasis is available only in Single-Speed Mode; Only 44.1 kHz De-emphasis is available in Stand-
Alone Mode.
8. Slow Roll-off interpolation filter is only available in Control Port Mode.
Table 6. Combined Interpolation and On-Chip Analog Filter Response
Parameter Min Typ Max Unit
Fast Roll-Off
Passband (Note 5) -0.01 dB corner (Single Speed) 0 - .454 Fs
-0.1 dB corner (Double Speed) 0 - .42 Fs
-0.2 dB corner (Quad Speed) 0 - .27 Fs
-3 dB corner (All Speed Modes) 0 - .499 Fs
Frequency Response 10 Hz to 20 kHz Single Speed -0.01 - +0.01 dB
Double Speed, Quad Speed -0.02 - +0.02 dB
StopBand 0.547 - - Fs
Stop-Band Attenuation (Note 6) 102 - - dB
Total Group Delay (Fs = Output Sample Rate) TDM Slot 0 Channel B - 8.4/Fs - s
All Other Interface Formats and TDM Slots/Channels - 9.4/Fs - s
Intrachannel Phase Deviation - - ±0.56/Fs s
Inter-channel Phase Deviation - - 0 s
De-emphasis Error (Note 7) Fs = 32 kHz - - ±0.23 dB
(Relative to 1 kHz) Fs = 44.1 kHz - - ±0.14 dB
Fs = 48 kHz
--±0.09dB
Slow Roll-Off (Note 8)
Passband (Note 5) -0.01 dB corner (Single Speed) 0 - 0.417 Fs
-0.1 dB corner (Double Speed) 0 - .37 Fs
-0.2 dB corner (Quad Speed) 0 - .27 Fs
-3 dB corner (All Speed Modes) 0 - .499 Fs
Frequency Response 10 Hz to 20 kHz Single Speed -0.01 - +0.01 dB
Double Speed, Quad Speed -0.02 - +0.02 dB
StopBand .583 - - Fs
Stop-Band Attenuation (Note 6) 64 - - dB
Total Group Delay (Fs - Output Sample Rate) TDM Slot 0 Channel B - 5.5/Fs - s
All Other Interface Formats and TDM Slots/Channels - 6.5/Fs - s
Intrachannel Phase Deviation - - ±0.14/Fs s
Inter-channel Phase Deviation - - 0 s
De-emphasis Error (Note 7) Fs = 32 kHz - - ±0.23 dB
(Relative to 1 kHz) Fs = 44.1 kHz - - ±0.14 dB
Fs = 48 kHz
--±0.09dB