آر اف (فرکانس رادیویی) و بی‌سیم سایر آی سی‌ و ماژول‌های آر اف

Product Attributes

Introduction

The AD9856 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 on a single chip to form a complete quadrature digital upconverter device. The AD9856 is intended to function as a universal I/Q modulator and agile upconverter for communications applications where cost, size, power dissipation, and dynamic performance are critical attributes. The AD9856 is available in a space-saving surface-mount package, and is specified to operate over the extended industrial temperature range of -40°C to +85°C.

Features

• DC to 80 MHz output bandwidth
• Integrated 12-bit D/A converter
• Programmable sample rate interpolation filter
• Programmable reference clock multiplier
• Internal Sinc(x)/x compensation filter

• 82 dB SFDR @ 40 MHz AOUT

• 48 dB SFDR @ 70 MHz AOUT

• 80 dB narrow-band SFDR @ 70 MHz AOUT

• +3 V single-supply operation
• Space-saving surface-mount packaging
• Bidirectional control bus interface
• Supports burst and continuous Tx modes
• Single-tone mode for frequency synthesis applications
• Four programmable, pin-selectable, modulator profiles
• Direct interface to AD8320/AD8321 PGA cable driver

Applications

• HFC data, telephony, and video modems
• Wireless and satellite communications
• Cellular base stations