CS53L32A

Low-Voltage Stereo A/D Converter

Overview

Description

The CS53L32A is a highly integrated 24-bit, 96 kHz audio analog-to-digital (A/D) converter that performs stereo A/D conversion using Delta-Sigma techniques.

The CS53L32A is based on Delta-Sigma modulation, allowing infinite adjustment of the sample rate between 2 kHz and 100 kHz simply by changing the master clock frequency.

The CS53L32A contains adjustable analog gain, a 2:1 input mux, and digital attenuation.

The CS53L32A operates from a 1.8 V to 3.3 V supply. These features are ideal for portable MP3 players, minidisc recorders/players, digital camcorders, PDAs, set-top boxes, and other portable systems that require extremely low power consumption in a minimum of space.

Features

• 24-bit conversion/96 kHz sample rate
• 98 dB dynamic range at 3 V supply
• -88 dB THD+N
• Up to 32 dB gain
• 20 dB gain step
• 12 dB variable input gain (1 dB steps)
• Changes made at zero crossings
• Stereo inputs
• Digital volume control
• 96 dB attenuation, 1 dB step size
• Mute
• Soft ramping
• 2:1 input mux
• 1.8 V to 3.3 V supply
• Low power consumption
• 9.7 mW at 1.8 V
• Package: 20-pin TSSOP; option for lead-free assembly

Diagram