Overview
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
Product Details
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.
The AD9857 offers enhanced performance over the industry-standard AD9856, as well as providing additional features.
The AD9857 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.
APPLICATIONS
- HFC data, telephony, and video modems
- Wireless base station
- Agile, LO frequency synthesis
- Broadband communications
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
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AN-924: Digital Quadrature Modulator Gain11/20/2020
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AN-837: DDS-Based Clock Jitter Performance vs. DAC Reconstruction Filter Performance (Rev. 0)2/14/2015
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AN-237: Choosing DACs for Direct Digital Synthesis2/14/2015
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AN-823: Direct Digital Synthesizers in Clocking Applications Time (Rev. 0)2/14/2015
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AN-0996: The Advantages of Using a Quadrature Digital Upconverter (QDUC) in Point-to-Point Microwave Transmit Systems (Rev. 0)3/25/2009
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AN-922: Digital Pulse-Shaping Filter Basics (Rev. 0)2/5/2008
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AN-851: A WiMax Double Downconversion IF Sampling Receiver Design (Rev. 0)7/26/2006
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FAQs7/26/2017
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Improved DDS Devices Enable Advanced Comm Systems9/1/2006
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The Year of the Waveform Generator12/1/2005
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DDS Simplifies Polar Modulation8/5/2004
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Speedy A/Ds Demand Stable Clocks3/22/2004
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Digital Upconverter IC Tames Complex Modulation8/1/2000
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Basics of Designing a Digital Radio Receiver (Radio 101)3/6/1998
Tools & Simulations
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| AD9857ASTZ | Material Declaration | Reliability Data | 80-Lead LQFP (14mm x 14mm) | |
| Wafer Fabrication Data |
PCN-PDN Information
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Sample & Buy
Ordering FAQs
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Buy Now Pricing
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List Pricing
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Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
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