AD9778A
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AD9778A

Dual, 14-Bit, 1 GSPS, Digital-to-Analog Converter

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $33.39
Features
  • Low power: 1.0 W @ 1 GSPS, 600 mW @ 500 MSPS, full operating conditions
  • Single carrier W-CDMA ACLR = 80 dBc @ 80 MHz IF
  • Analog output: adjustable 8.7 mA to 31.7 mA, RL = 25 Ω to 50 Ω
  • Novel 2×, 4×, and 8× interpolator/coarse complex modulator allows carrier placement anywhere in DAC bandwidth
  • Auxiliary DACs allow control of external VGA and offset control
  • Multiple chip synchronization interface
  • High performance, low noise PLL clock multiplier
  • Digital inverse sinc filter
  • 100-lead, exposed paddle TQFP
Additional Details
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The AD9776A/AD9778A/AD9779A are dual, 12-/14-/16-bit, high dynamic range digital-to-analog converters (DACs) that provide a sample rate of 1 GSPS, permitting a multicarrier generation up to the Nyquist frequency. They include features optimized for direct conversion transmission applications, including complex digital modulation and gain and offset compensation. The DAC outputs are optimized to interface seamlessly with analog quadrature modulators such as the ADL537x FMOD series from Analog Devices, Inc. A 3-wire interface provides for programming/readback of many internal parameters. Full-scale output current can be programmed over a range of 10 mA to 30 mA. The devices are manufactured on an advanced 0.18 μm CMOS process and operate on 1.8 V and 3.3 V supplies for a total power consumption of 1.0 W. They are enclosed in a 100-lead thin quad flat package (TQFP).

Product Highlights

  1. Ultralow noise and intermodulation distortion (IMD) enable high quality synthesis of wideband signals from baseband to high intermediate frequencies.
  2. A proprietary DAC output switching technique enhances dynamic performance.
  3. The current outputs are easily configured for various single-ended or differential circuit topologies.
  4. CMOS data input interface with adjustable setup and hold.
  5. Novel 2×, 4×, and 8× interpolator/coarse complex modulator allows carrier placement anywhere in DAC bandwidth.

Applications

  • Wireless infrastructure W-CDMA, CDMA2000, TD-SCDMA, WiMax, GSM, LTE
  • Digital high or low IF synthesis
  • Internal digital upconversion capability
  • Transmit diversity
  • Wideband communications: LMDS/MMDS, point-to-point
Part Models 2
1ku List Price Starting From $33.39

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

PCN

Mar 7, 2012

- 11_0074

Addition of ASE, Shanghai as an Alternative Assembly Source for Select LQFP and TQFP-EP Packages

Jun 16, 2009

- 09_0027

Conversion to Laser Mark for the LQFP Packages (Single Grades)

AD9778ABSVZ

PRODUCTION

AD9778ABSVZRL

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Mar 7, 2012

- 11_0074

arrow down

Addition of ASE, Shanghai as an Alternative Assembly Source for Select LQFP and TQFP-EP Packages

Jun 16, 2009

- 09_0027

arrow down

Conversion to Laser Mark for the LQFP Packages (Single Grades)

AD9778ABSVZ

PRODUCTION

AD9778ABSVZRL

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

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Evaluation Kit

Evaluation Kits 1

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EVAL-AD9778A

AD9778A Evaluation Board

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EVAL-AD9778A

AD9778A Evaluation Board

AD9778A Evaluation Board

Features and Benefits

  • Evaluation board for the AD9776A/AD9778A/AD9779A
  • Includes options to evaluate
    DAC only
    DAC and ADL5375 quadrature modulator
  • USB interface for configuration
  • On-board or external power supply regulation
  • On-board or external clock distribution
  • Data pattern generator and SPI software interfaces

Product Detail

This page contains evaluation board documentation and ordering information for evaluating the AD9778A.

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