AD9857 CMOS 200 MSPS 14-Bit Quadrature Digital Upconverter

The AD9857 integrates a high-speed direct-digital synthesizer (DDS), a high-performance, high-speed 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 cost, size, power dissipation, and dynamic performance are critical attributes.

Features and Benefits
  • 200 MHz internal clock rate
  • 14-bit data path
  • Excellent dynamic performance: 80 dB SFDR @ 65 MHz (±100 kHz) AOUT
  • 4× to 20× programmable reference clock multiplier
  • Reference clock multiplier PLL lock detect indicator
  • Internal 32-bit quadrature DDS
  • FSK capability
  • 8-bit output amplitude control
  • Single-pin power-down function
  • Four programmable, pin-selectable signal profiles
  • SIN(x)/x correction (inverse SINC function)
  • Simplified control interface 10 MHz serial, 2-wire or 3-wire SPI®-compatible
RF & Microwave
AD9857 IBIS Models
Data Sheets
Documentnote
AD9857: CMOS 200 MSPS 14-Bit Quadrature Digital Upconverter Data Sheet (Rev. C)PDF 1065 kB
Application Notes
Documentnote
AN-0996: The Advantages of Using a Quadrature Digital Upconverter (QDUC) in Point-to-Point Microwave Transmit Systems (Rev. 0)PDF 219 kB
AN-837: DDS-Based Clock Jitter Performance vs. DAC Reconstruction Filter Performance (Rev. 0)PDF 313 kB
AN-237: Choosing DACs for Direct Digital SynthesisPDF 1156 kB
AN-823: Direct Digital Synthesizers in Clocking Applications Time (Rev. 0)PDF 115 kB
AN-924: Digital Quadrature Modulator Gain (Rev. A)PDF 105 kB
AN-922: Digital Pulse-Shaping Filter Basics (Rev. 0)PDF 1582 kB
AN-851: A WiMax Double Downconversion IF Sampling Receiver Design (Rev. 0)PDF 262 kB
Product Highlight
Documentnote
Introducing Digital Up/Down Converters: VersaCOMM™ Reconfigurable Digital ConvertersPDF 63 kB
Technical Books
Documentnote
Frequently Asked Questions
Documentnote
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD9857ASTZ Production80 ld LQFP (14x14mm)OTH 90-40 to 85C33.6428.6Y
Reference Materials
AD9857: CMOS 200 MSPS 14-Bit Quadrature Digital Upconverter Data Sheet (Rev. C) ad9857
AD9857 (All Speed Grades, All Models) ad9857
AN-0996: The Advantages of Using a Quadrature Digital Upconverter (QDUC) in Point-to-Point Microwave Transmit Systems (Rev. 0) ad9857
AN-837: DDS-Based Clock Jitter Performance vs. DAC Reconstruction Filter Performance (Rev. 0) ad9856
AN-237: Choosing DACs for Direct Digital Synthesis ad9856
AN-823: Direct Digital Synthesizers in Clocking Applications Time (Rev. 0) ad9856
AN-924: Digital Quadrature Modulator Gain (Rev. A) ad9856
AN-237: 放大器直接数字频率合成的DAC选型器应用漫谈 (Rev. 0) ad9540
AN-924: 数字正交调制器增益 (Rev. A) ad9856
AN-0996: 在点对点微波发射系统中使用正交数字上变频器(QDUC)的优势 (Rev. 0) ad9857
AN-922: 数字脉冲整形滤波器基础知识 (Rev. 0) ad9856
AN-922: Digital Pulse-Shaping Filter Basics (Rev. 0) ad9856
AN-837: 基于DDS的时钟抖动性能与DAC重构滤波器性能的关系[中文版] (Rev. 0) ad9540
AN-823: 时钟应用中的直接数字频率合成器[中文版] (Rev. 0) ad9540
AN-851: 一种WiMax双下变频IF采样接收机设计方案[中文版] (Rev. 0) ad9540
AN-851: A WiMax Double Downconversion IF Sampling Receiver Design (Rev. 0) ad9856
Introducing Digital Up/Down Converters: VersaCOMM™ Reconfigurable Digital Converters ad9856
Basics of Designing a Digital Radio Receiver (Radio 101) ad9856
Digital Up/Down Converters: VersaCOMM™ White Paper ad9856
Digital Upconverter IC Tames Complex Modulation ad9857