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CS5317-KP Datasheet

  • CS5317-KP

  • Cirrus Logic [16-Bit, 20 kHz Oversampling A/D Converter]

  • CIRRUS

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CS5317
16-Bit, 20 kHz Oversampling A/D Converter
Features
l
Complete
Description
Voiceband DSP Front-End
The CS5317 is an ideal analog front-end for voiceband
signal processing applications such as high-perfor-
mance modems, passive sonar, and voice recognition
systems. It includes a 16-bit A/D converter with an inter-
nal track & hold amplifier, a voltage reference, and a
linear-phase digital filter.
An on-chip phase-lock loop (PLL) circuit simplifies the
CS5317鈥檚 use in applications where the output word rate
must be locked to an external sampling signal.
The CS5317 uses delta-sigma modulation to achieve
16-bit output word rates up to 20 kHz. The delta-sigma
technique utilizes oversampling followed by a digital fil-
tering and decimation process. The combination of
oversampling and digital filtering greatly eases antialias
requirements. Thus, the CS5317 offers 84 dB dynamic
range and 80 dB THD and signal bandwidths up to
10 kHz at a fraction of the cost of hybrid and discrete
solutions.
The CS5317鈥檚 advanced CMOS construction provides
low power consumption of 220 mW and the inherent re-
liability of monolithic devices.
ORDERING INFORMATION
See page 20.
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-
-
-
16-Bit A/D Converter
Internal Track & Hold Amplifier
On-Chip Voltage Reference
Linear-Phase Digital Filter
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On-Chip
PLL for Simplified Output Phase
Locking in Modem Applications
l
84 dB Dynamic Range
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80 dB Total Harmonic Distortion
l
Output Word Rates up to 20 kHz
l
DSP-Compatible Serial Interface
l
Low Power Dissipation: 220 mW
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Cirrus Logic, Inc.
Crystal Semiconductor Products Division
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.crystal.com
Copyright
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Cirrus Logic, Inc. 1997
(All Rights Reserved)
MAR 鈥?5
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