
Cirrus Logic
Description
The CS4385 is a complete 8-channel 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 interpolation filters followed by an oversampled, multi-bit delta sigma modulator which includes mismatch shaping technology that eliminates distortion due to capacitor mismatch. Following this stage is a multi-element switched capacitor stage and low-pass filter with differential analog outputs.
FEATUREs
● Advanced Multi-bit Delta Sigma Architecture
● 24-Bit Conversion
● Automatic Detection of Sample Rates up to 192 kHz
● 114 dB Dynamic Range
● -100 dB THD+N
● Direct Stream Digital Mode
– Non-decimating volume control
– On-chip 50 kHz filter
– Matched PCM and DSD analog output levels
● Compatible with Industry-standard Time Division Multiplexed (TDM) Serial Interface
● Selectable Digital Filters
● Volume Control with 1/2-dB Step Size and Soft Ramp
● Low Clock Jitter Sensitivity
● +5 V Analog Supply, +2.5 V Digital Supply
● Separate 1.8 to 5 V Logic Supplies for the Control & Serial Ports