AD9856

CMOS 200 MHz的正交数字上变频器 CMOS 200 MHz Quadrature Digital Upconverter

Product Details

The integrates a high-speed direct-digital synthesizer DDS, a high-performance, high-speed 12-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 AD9856 is primarily intended to function as a universal upstream and downstream I/Q modulator for interactive HFC cable network applications, where cost, size, power dissipation, and dynamic performance are critical attributes.

### Features and Benefits

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Universal Low Cost Modulator Solution for Communications Applications

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DC to 80 MHz Output Bandwidth

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Integrated 12-Bit D/A Converter

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Programmable Sample Rate Interpolation Filter

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Programmable Reference Clock Multiplier

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Internal SINx/x Compensation Filter

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>52 dB SFDR @ 40 MHz AOUT

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+3 V Single Supply Operation

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>48 dB SFDR @ 70 MHz AOUT

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>80 dB Narrowband SFDR @ 70 MHz AOUT

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Space-Saving Surface-Mount Packaging

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Bidirectional Control Bus Interface

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