CS5334/CS5335 pdf datasheet (2

The CS5334 and CS5335 are 2-channel, single +5V
supply, pin compatable analog-to-digital converters for
digital audio systems. The CS5334 and CS5335 perform
sampling, analog-to-digital conversion and anti-alias filtering,
generating 20-bit values for both left and right
inputs in serial form. The output word rate can be up to
50 kHz per channel.
The CS5334 and CS5335 use 4th-order, delta-sigma
modulation with 128X oversampling followed by digital
filtering and decimation, which removes the need for an
external anti-alias filter. These ADCs use a differential
architecture which provides excellent noise rejection.
The CS5334 and CS5335 have a filter passband to
21.7kHz. The filter has linear phase, 0.0025 dB passband
ripple, and >85 dB stopband rejection. An on-chip
high pass filter is also included to remove DC offsets.