Cirrus CS4354 24位立体声数模转换方案

The CS4354 is a complete stereo digital-to-analog system including digital interpolation, third-order multi-bit delta-sigma digital-to-analog conversion, digital de-emphasis, analog filtering, and on-chip 2 VRMS line-level driver from a 5 V supply.

The advantages of this architecture include ideal differential linearity, no distortion mechanisms due to resistor matching errors, no linearity drift over time and temperature,

high tolerance to clock jitter, and a minimal set of external components.

The CS4354 is available in a 14-pin SOIC package in Commercial (-40°C to +85°C) grade. The CDB4354 Customer Demonstration Board is also available for device evaluation and implementation suggestions.

These features are ideal for cost-sensitive, 2-channel audio systems including video game consoles, Blu-Ray Disc® and DVD players, set-top boxes, digital TVs, and DAB/DMB devices.

CS4354主要特性：

Advanced Multi-bit Delta-Sigma Modulator

101 dB A-wt Dynamic Range

-86 dB THD+N

Single-ended Ground Centered Analog Architecture

– No DC-blocking Capacitors Required

– Integrated Inverting Charge Pump

– Filtered Line-level Outputs

– 2VRMS Full-scale Output

 Low-latency Digital Filtering

 Supports Sample Rates up to 192 kHz

 24-bit I²S Input

 +5 V Analog Supply with Integrated Inverting

Charge Pump and Regulator for Core Logic, and +1.8 V to +5 V Interface Power Supplies

 50 mW Power Consumption

 14-pin SOIC, Lead-free Assembly

图1。CS4354方框图

图2。CS4354典型连接框图

CS4354评估板

Evaluation Board for the CS4354

The CDB4354 evaluation board is a dedicated platform designed to facilitate the evaluation of the CS4354 24-bit, stereo D/A converter. Evaluation requires an analog signal analyzer, a digital signal s...