CS5371A/72A/76A 7.9 mm 7. 4 mm C S 5371 A/72 A 24-p in SSOP dime nsions CS5371A/72A Features • 24-bit analog-to-digital conversion • Fourth-order Delta-Sigma architecture High-Performance Multichannel C hipset for Seismic & Geophysical Measurements low-power, fourth-order Delta-Sigma 24-Bit Delta-Sigma Modulators Provide Exceptional Performance and Low- Power Consumption modulators. The CS5376A is a The CS5371A and CS5372A provide high multifunction digital filter utilizing a dynamic range and low total harmonic low-power signal processing architecture distortion, while consuming only 25 mW to achieve efficient filtering for up to per channel in normal mode. Additionally, four Delta-Sigma modulators. When each modulator can be independently combined, the CS5371A/72A modulators placed in a power-down mode using and the CS5376A digital filter produce a 1 mW per channel and, by halting the input compact, high-resolution, analog-to-digital clock, the modulators enter a micropower measurement system ideal for seismic state consuming only 10 µW per channel. and geophysical applications. Available in a 24-pin SSOP package, • Clock-jitter-tolerant architecture The CS5371A and CS5372A are single- • Input voltage range 5 Vp-p differential and dual-channel, high dynamic range, • High dynamic range (signal-to-noise ratio) • 127 dB at 215 Hz bandwidth (2 ms sampling) • 124 dB at 430 Hz bandwidth (1 ms sampling) • Low Total Harmonic Distortion (THD) • -118 dB THD typical • -112 dB THD max • Dual power-supply configuration • VA+ = 2.5 V; VA- = -2.5 V; VD = 3.3 V • Low-power consumption • Normal mode: 25 mW per channel the CS5371A and CS5372A provide • Small footprint: 24-pin SSOP package consumption in a very small footprint. exceptional performance and low-power www.cirrus.com CS5371A/72A/76A 11 .7 mm 11.7 mm C S 5376 A 64-p in TQF P dime nsions CS5376A Features • 1- to 4-channel digital decimation filter • Multiple on-chip FIR and IIR coefficient sets • Programmable coefficients for custom filters • Synchronous operation for simultaneous sampling • Selectable output word rate • 4000, 2000, 1000, 500, 333, 250 SPS • 200, 125, 100, 50, 40, 25, 20, 10, 5, 1 SPS • Digital Calibrations • Gain correction • Offset correction • Offset calibration Highly Integrated, Multifunction Quad Decimation Filter Delivers Accurate Results Total-S. A Complete Seismic Solution. The CS5376A is a multifunction digital filter modulators and the CS5376A digital utilizing a low-power signal processing filter are the foundation of our Total-S architecture to achieve efficient filtering seismic platform. When combined with the for up to four Delta-Sigma modulators. CS3301A/02A differential amplifiers and Digital filter coefficients for the FIR and the CS4373A digital-to-analog converter, IIR filters are included on-chip or can be this chipset can easily and quickly create a programmed for custom applications. synchronous high-resolution multichannel Using the on-chip selectable coefficient measurement system for seismic and sets, the digital filter decimation ratios geophysical data acquisition. produce output word rates ranging from 4,000 SPS to 1 SPS, resulting in measurement bandwidths ranging from 1,720 Hz down to 430 mHz. • Digital test bit stream signal generator • Sine wave or impulse output mode • Ideal for use with the CS4373A Seismic Test DAC The CS5376A provides highly integrated • Time-break controller • Offset and gain corrections • 12 general-purpose I/O • Digital test D/A converter bit-stream • Secondary SPI Port peripherals that simplify system design: • Selectable digital filter decimation ratios signal generator • Microcontroller or EEPROM configuration • Time-break controller • Low-power consumption • 9.5 mW per channel at 500 SPS OWR • 12 general purpose I/O pins • Flexible power supplies • I/O interface: 3.3 V or 5.0 V • Digital logic core: 3.0 V, 3.3 V, or 5.0 V The CS5371A/72A Delta-Sigma • Secondary SPI port • Small footprint: 64-pin TQFP package www.cirrus.com Cirrus Lo gic , In c. · 2901 Via For t una · Aus t in T X 7 8 74 6 U S A · T 5 1 2 - 8 5 1 - 4 0 0 0 · T 8 0 0 - 8 8 8 - 5 0 1 6 · F 5 1 2 - 8 5 1 - 4 9 7 7 Product Bulletin 0111-0807-PB-W © 2007 Cirrus Logic, Inc. All rights reserved. Product information is subject to change without notice. Cirrus Logic is a trademark of Cirrus Logic, Inc. Other brand and product names may be trademarks or service marks of their respective owners.