User Manual

2 DS568F1
CS4398
Stand-Alone Mode Features
 Selectable Oversampling Modes
– 32 kHz to 54 kHz Sampling Rates
– 50 kHz to 108 kHz Sampling Rates
– 100 kHz to 216 kHz Sampling Rates
 Selectable Serial Audio Interface Formats
– Left-Justified, up to 24 bit
– I²S, up to 24 bit
– Right-Justified 16 bit
– Right-Justified 24 bit
 Auto Mute Output Polarity Detect
 Auto Mute on Static PCM Samples
 44.1 kHz 50/15 µs De-Emphasis Available
 Soft Volume Ramp-up after Reset is Released
Control Port Mode Features
 Selectable Oversampling Modes
– 32 kHz to 54 kHz Sampling Rates
– 50 kHz to 108 kHz Sampling Rates
– 100 kHz to 216 kHz Sampling Rates
 Selectable Serial Audio Interface Formats
– Left-Justified, up to 24 bit
– I²S, up to 24 bit
– Right-Justified 16 bit
– Right-Justified 18 bit
– Right-Justified 20 bit
– Right-Justified 24 bit
 Direct Stream Digital Mode
 Selectable Auto or Manual Mute Polarity
 Selectable Interpolation Filters
 Selectable 32, 44.1, and 48 kHz De-Emphasis
 Configurable ATAPI Mixing Functions
 Configurable Volume and Muting Controls
Description
The CS4398 is a complete stereo 24 bit/192 kHz digital-
to-analog system. This D/A system includes digital de-
emphasis, half dB step size volume control, ATAPI
channel mixing, selectable fast and slow digital interpo-
lation filters followed by an oversampled multi-bit delta-
sigma modulator that includes mismatch shaping tech-
nology that eliminates distortion due to capacitor
mismatch. Following this stage is a multi-element
switched capacitor stage and low pass filter with differ-
ential analog outputs.
The CS4398 also has an proprietary DSD processor
that allows for volume control and 50 kHz on-chip filter-
ing without an intermediate decimation stage. It also
offers an optional path for direct DSD conversion by di-
rectly using the multi-element switched capacitor array.
The CS4398 accepts PCM data at sample rates from
32 kHz to 216 kHz, DSD audio data, has selectable dig-
ital filters, consumes little power, and delivers excellent
sound quality.
ORDERING INFORMATION
Product Description Package Pb-Free Grade Temp Range Container Order #
CS4398
120 dB, 192 kHz Multi-
Bit DAC with Volume
Control
28-pin
TSSOP
YES Commercial -10° to +70° C
Rail CS4398-CZZ
Tape & Reel CS4398-CZZR
CDB4398 CS4398 Evaluation Board - - - - CDB4398