Analog Devices Inc. AD9135 11-Bit Dual DAC

Analog Devices Inc. AD9135 is a dual, 11-bit, high dynamic range digital-to-analog converter (DAC) offering a maximum sample rate of 2.8GSPS to support a multicarrier generation over a very wide bandwidth. The DAC outputs are optimized to interface seamlessly with the ADRF6720 and ADRF670x analog quadrature modulators (AQMs). An optional 3-wire or 4-wire serial port interface (SPI) allows programming/readback of many internal parameters. 

Designers can program a full-scale output current over a typical range of 13.9mA to 27.0mA. Available in a small 88-lead LFCSP package with a 12mm × 12mm footprint, the AD9135 DAC is ideally suited for wireless communications, wideband communications, transmit diversity, multiple input/multiple output (MIMO), instrumentation, and automated test equipment.

Features

  • Supports input data rate >2GSPS
  • Proprietary low spurious and distortion design
    • SFDR = 82dBc at dc IF, −9dBFS
    • Flexible 8-lane JESD204B interface
  • Multiple chip synchronization
    • Fixed latency
    • Data generator latency compensation
  • Selectable 1×, 2×, 4×, 8× interpolation filter
  • Low power architecture
  • Transmit enable function allows extra power saving and instant control of the output status
  • High performance, low noise phase-locked loop (PLL) clock multiplier
  • Digital inverse sinc filter
  • Low power: 1.42W at 1.6GSPS full operating conditions
  • 88-lead LFCSP with exposed pad

Applications

  • Wireless communications
    • 3G/4G W-CDMA base stations
    • Wideband repeaters
    • Software defined radios
  • Wideband communications
    • Point-to-point
    • Local multipoint distribution service (LMDS) and multichannel multipoint distribution service (MMDS)
  • Transmit diversity, multiple input/multiple output (MIMO)
  • Instrumentation
  • Automated test equipment

Functional Block Diagram

Block Diagram - Analog Devices Inc. AD9135 11-Bit Dual DAC
Zveřejněno: 2014-10-08 | Aktualizováno: 2022-03-11