CS5126 Datasheet, PDF (1/32 Pages) Cirrus Logic – 16-Bit Stereo A/D Converter for Digital Audio

CS5126
16-Bit, Stereo A/D Converter for Digital Audio
Features
l Monolithic CMOS A/D Converter
- Inherent Sampling Architecture
- Stereo or Monaural Capability
- Serial Output
l Monaural Sampling Rates up to 100 kHz
- 50 kHz/Channel Stereo Sampling
l Signal-to-(Noise+Distortion): 92 dB
l Dynamic Range: 92 dB
- 95 dB in 2X Oversampling Schemes
l Interchannel Isolation: 90 dB
l 2’s Complement or Binary Coding
l Low Power Dissipation: 260 mW
- Power Down Mode for Portable Applications
l Evaluation Board Available
Description
The CS5126 CMOS analog-to-digital converter is an ide-
al front-end for stereo or monaural digital audio systems.
The CS5126 can be configured to handle two channels
at up to 50 kHz sampling per channel, or it can be con-
figured to sample one channel at rates up to 100 kHz.
The CS5126 executes a successive approximation algo-
rithm using a charge redistribution architecture. On-chip
self-calibration circuitry has 18-bit resolution thus avoid-
ing any degradation in performance with low-level
signals. The charge redistribution technique also pro-
vides an inherent sampling function which avoids the
need for external sample/hold amplifiers.
Signal-to-(noise+distortion) in stereo operation is 92 dB,
and is dominated by internal broadband noise (1/2 LSB
rms). When the CS5126 is configured for 2X oversam-
pling, digital post-filtering bandlimits this white noise to
20 kHz, increasing dynamic range to 95 dB.
ORDERING INFORMATION
CS5126-KP 0° to 70° C 28-pin Plastic DIP
CS5126-KL 0° to 70° C 28-pin PLCC
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Cirrus Logic, Inc.
Crystal Semiconductor Products Division
P.O. Box 17847, Austin, Texas 78760
[phone] FAX: [phone]
http://www.crystal.com
Copyright © Cirrus Logic, Inc. 1997
(All Rights Reserved)

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