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CS4373A-ISZ Datasheet(PDF) 1 Page - Cirrus Logic |
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CS4373A-ISZ Datasheet(HTML) 1 Page - Cirrus Logic |
1 / 34 page Copyright © Cirrus Logic, Inc. 2006 (All Rights Reserved) http://www.cirrus.com CS4373A Low-power, High-performance ∆Σ Test DAC Features Digital ∆Σ Input from CS5376A Digital Filter Selectable Differential Analog Outputs • Precision output (OUT±) for electronics tests • Buffered output (BUF±) for sensor tests Multiple AC and DC Operational Modes • Signal bandwidth: DC to 100 Hz • Max AC amplitude: 5 VPP differential • Max DC amplitude: + 2.5 Vdc differential Selectable Attenuation for CS3301A / CS3302A • 1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64 Outstanding Performance • AC (OUT): -116 dB THD typical, -112 dB max • AC (BUF): -108 dB THD typical, -90 dB max • DC absolute accuracy: 0.4% typical, 1% max Low Power Consumption • AC modes / DC modes: 40 mW / 20 mW • Sleep mode / Power Down: 1 mW / 10 µW Extremely Small Footprint • 28-pin SSOP package, 8 mm x 10 mm Bipolar Power Supply Configuration • VA+ = +2.5 V;VA- = -2.5 V; VD = +3.3 V Description The CS4373A is a high-performance, differential output digital-to-analog converter (DAC) with programmable at- tenuation and multiple operational modes. AC test modes measure system dynamic performance through THD and CMRR tests while DC test modes are for gain calibration and pulse tests. The CS4373A is driven by a ∆Σ digital bit stream from the CS5376A digital filter test bit stream (TBS) generator. It has two sets of differential analog outputs, OUT and BUF, to simplify system design as dedicated outputs for testing the electronics channel and for in-circuit sensor tests. Analog output attenuation is selected by simple pin settings and matches the gain of the CS3301A / CS3302A differential amplifiers for full-scale testing at all gain ranges. The CS4373A test DAC provides self-test and precision calibration capability for high-resolution, low-frequency multi-channel measurement systems designed from CS3301A / CS3302A differential amplifiers, CS5371A / CS5372A ∆Σ modulators and the CS5376A digital filter. ORDERING INFORMATION See page 34. 24-Bit ∆Σ DAC Attenuator Clock Generator TDATA VA+ MODE(0, 1, 2) ATT(0, 1, 2) VD VA- VREF+ VREF- GND OUT+ OUT- BUF+ BUF- CAP+ CAP- MCLK MSYNC DEC ‘06 DS699F2 |
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