CS4391

24-Bit, 192 kHz Stereo D/A Converter with Volume Control

Overview

Description

The CS4391 is a complete stereo digital-to-analog (D/A) system that includes digital interpolation, fourth-order Delta-Sigma digital-to-analog conversion, digital de-emphasis, volume control, channel mixing, and analog filtering. The advantages of this architecture include ideal differential linearity; no distortion mechanisms due to resistor matching errors; no linearity drift over time and temperature; and a high tolerance to clock jitter.

The CS4391 accepts PCM (pulse code modulation) data at sample rates from 2 kHz to 192 kHz and Direct Stream Digital (DSD) audio data. It consumes very little power and operates over a wide power supply range. These features are ideal for DVD, audio/video receivers, CD, and set-top box systems.

Features

• Complete stereo D/A converter system: interpolation, D/A, output analog filtering
• 108 dB dynamic range
• -94 dB THD+N
• DSD mode
• Low clock-jitter sensitivity
• On-chip digital de-emphasis for 32 kHz, 44.1 kHz, and 48 kHz
• Volume control with soft ramp
• 119 dB attenuation
• 1 dB step size
• Zero crossing click-free transitions
• Direct interface with 5 V to 1.8 V logic
• 3 V to 5 V power supply
• 36 mW with 3 V supply
• ATAPI mixing
• Package: 20-pin TSSOP; option for lead-free assembly

Diagram

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