AD9857ASTZ

ANALOG DEVICES  AD9857ASTZ  芯片, 数字上变频器, 14位, 200MSPS, LQFP-80

The is a high speed Direct Digital Synthesizer DDS with a high performance, 14-bit digital-to-analog converter DAC, clock multiplier circuitry, digital filters and other DSP functions onto a single chip, to form a complete quadrature digital upconverter device. The AD9857 is intended to function as a universal I/Q modulator and agile upconverter, single-tone DDS or interpolating DAC for communications applications, where power dissipation and dynamic performance are critical attributes.

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200MHz Internal clock rate

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14-bit Data path

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Excellent dynamic performance - 80dB SFDR at 65MHz ±100kHz AOUT

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4x to 20x Programmable reference clock multiplier

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Reference clock multiplier PLL lock detect indicator

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Internal 32-bit quadrature DDS

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FSK capability

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8-bit Output amplitude control

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Single-pin power-down function

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Four programmable, pin-selectable signal profiles

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SINx/x correction inverse SINC function

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Simplified control interface

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10MHz serial, 2-wire or 3-wire SPI®-compatible

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Single-ended or differential input reference clock

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Three modes of operation - Quadrature modulator mode, Single-tone mode, Interpolating DAC mode