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CS5371 Datasheet(PDF) 1 Page - Cirrus Logic |
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CS5371 Datasheet(HTML) 1 Page - Cirrus Logic |
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1 / 22 page  Copyright © Cirrus Logic, Inc. 2005 (All Rights Reserved) http://www.cirrus.com CS5371 CS5372 Low-power, High-performance ∆Σ Modulators Features & Description Fourth-order ∆Σ Architecture Clock-jitter-tolerant Architecture Input Voltage: 5 Vpp Fully Differential High Dynamic Range 127 dB SNR @ 215 Hz BW (2 ms Output) 124 dB SNR @ 430 Hz BW (1 ms Output) Low Total Harmonic Distortion -118 dB THD Typical, -112 dB THD Maximum Low Power Consumption Normal Mode: 25 mW per Channel Low-power Mode: 15 mW per Channel Small Footprint, 24-pin SSOP Package Single- or Multi-channel System Support 1-channel System: CS5371 2-channel System: CS5372 3-channel System: CS5371 + CS5372 4-channel System: CS5372 + CS5372 Single or Dual Power Supply Configurations VA+ = +5 V; VA- = 0 V; VD = +3.3 V to +5 V VA+ = +2.5 V;VA- = -2.5 V;VD = +3.3 V Description The CS5371 and CS5372 are one- and two-channel, high dynamic range, fourth-order ∆Σ modulators intend- ed for geophysical and sonar applications. Used in combination with the CS5376A or CS5378 digital filters, a unique high-resolution A/D measurement system results. The CS5371 and CS5372 have high dynamic range (127 dB @ 215 Hz bandwidth) and low total harmonic distortion (typically -118 dB THD), with very low power consumption per channel. In normal mode (LPWR=0, MCLK=2.048MHz), power consumption is 25 mW per channel, and in low-power mode (LPWR=1, MCLK=1.024MHz), power consumption is 15 mW per channel. Each modulator can be indepen- dently powered down to 1 mW per channel, and by halting the input clock, they will enter a micropower state using only 10 µW per channel. The modulators generate an oversampled serial bit stream at 512 kbits per second when operated from a clock frequency of 2.048 MHz. They are available in a small 24-pin SSOP package, providing exceptional per- formance in a very small footprint. ORDERING INFORMATION See page 21. INF1+ VA+ 4TH ORDER INR1+ INR1- VREF+ VREF- MDATA2 MSYNC MCLK PWDN1 VD ∆−Σ MODULATOR INF1- PWDN2 INF2+ 4TH ORDER INR2+ INR2- ∆−Σ MODULATOR INF2- OFST LPWR DGND MFLAG2 CLOCK GENERATOR MDATA1 MFLAG1 VA- INF+ VA+ 4TH ORDER INR+ INR- VREF+ VREF- MSYNC MCLK PWDN VD ∆−Σ MODULATOR INF- OFST LPWR DGND CLOCK GENERATOR MDATA MFLAG VA- CS5371 CS5372 OCT ‘05 DS255F3 |
Número de pieza similar - CS5371_05 |
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Descripción similar - CS5371_05 |
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