Analog Devices Inc. 亚德诺半导体 AD9144 16 位四通道数模转换器

亚德诺半导体 AD9139 四通道 DAC 是一款 16 位、高动态范围数模转换器(DAC)，提供达 2.8GSPS 的最高采样速率，可以产生高达奈奎斯特频率的多载波。DAC 输出经过优化，可以与 ADRF672x 模拟正交调制器(AQM)无缝对接。选择 3 线式或 4 线式串行端口接口(SPI)允许对许多内部参数进行编程和回读。满量程输出电流可以在 13.9mA 至 27.0mA 典型范围上进行编程。AD9144 采用 88 引脚 LFCSP 封装，非常适合无线通信、宽带通信、发射分集、多输入多输出（MIMO）、仪器仪表、自动测试设备等。

特性

  • Supports input data rate >1GSPS
  • Proprietary low spurious and distortion design
    • 6-carrier GSM IMD = 77dBc at 75MHz IF
    • SFDR = 82 dBc at DC IF, -9dBFS
    • Flexible 8-lane JESD204B interface
    • Support dual DAC mode at 2.8GSPS
  • Multiple chip synchronization
    • Fixed latency
    • Data generator latency compensation
  • Selectable 1×, 2×, 4×, 8× interpolation filter
    • Low power architecture
  • Input signal power detection
    • Emergency stop for downstream analog circuitry protection
  • Transmit enable function allows extra power saving
  • High performance, low noise PLL clock multiplier
  • Digital inverse sinc filter
  • Low power: 1.6W at 1.6GSPS, 1.7W at 2.0GSPS, full operating conditions
  • 88-lead LFCSP with exposed pad

应用

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

Typical Application Circuit

Analog Devices Inc. 亚德诺半导体 AD9144 16 位四通道数模转换器
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