ADI AD9853AS

10 b165 МГц32 b3,3 В, 5 В-40°C ~ 85°C

Overview

The AD9853AS integrates a high speed direct-digital synthesizer (DDS), a high performance, high speed digital-to-analog converter (DAC), digital filters and other DSP functions onto a single chip, to form a complete and flexible digital modulator device. The AD9853AS is intended to function as a modulator in network applications such as interactive HFC, WLAN and MMDS, where cost, size, power dissipation, functional integration and dynamic performance are critical attributes.

    Universal Low Cost Solution for HFC Network    Return-Channel TX Function: 5 MHz42 MHz/5 MHz65 MHz    165 MHz Internal Reference Clock Capability    Includes Programmable Pulse-Shaping FIR Filters and Programmable Interpolating Filters    FSK/QPSK/DQPSK/16-QAM/D16-QAM Modulation Formats    6x Internal Reference Clock Multiplier    Integrated Reed-Solomon FEC Function    Programmable Randomizer/Preamble Function    Supports Interoperable Cable Modem Standards    Internal SINx/x Compensation    >50 dB SFDR @ 42 MHz Output Frequency (Single Tone)    Controlled Burst Mode Operation    +3.3 V to +5 V Single Supply Operation    Low Power: 750 mW @ Full Clock Speed (3.3 V Supply)    Space Saving Surface Mount Packaging

Features

Applications

• Desktop PC
• Notebook
• Pocket PC
• Desktop radio
• Clock radio
• Tuner
• Portable radio
• Car radio
• Satellite radio receiver
• Shortwave receiver