The 14-bit ISL5314 is a complete direct digital synthesizer (DDS) system in a single 48 Ld LQFP package. A 48-bit programmable carrier NCO (numerically controlled oscillator) and a high-speed 14-bit digital-to-analog converter (DAC) are integrated into a stand-alone DDS. The DDS accepts 48-bit center and offset frequency control information via a parallel processor interface. A 40-bit frequency tuning word can also be loaded via an asynchronous serial interface. Modulation control is provided by 3 external pins. The PH0 and PH1 pins select phase offsets of 0°, 90°, 180°, and 270°, while the ENOFR pin enables or zeros the offset frequency word to the phase accumulator. The parallel processor interface has an 8-bit write-only data input C(7:0), a 4-bit address A(3:0) bus, a Write Strobe (WR), and a Write Enable. The processor can update all registers simultaneously by loading a set of master registers, then transfer all master registers to the slave registers by asserting the UPDATE pin.


  • 125MSPS output sample rate with 5V digital supply
  • 100MSPS output sample rate with 3.3V digital supply
  • 14-bit DAC with internal reference
  • Parallel control interface for fast tuning (50MSPS control register write rate) and serial control interface
  • 48-bit programmable frequency control
  • Offset frequency register and enable pin for fast FSK
  • Small 48 Ld LQFP packaging
  • Pb-Free (RoHS compliant)


  • Programmable local oscillator
  • FSK, PSK modulation
  • Direct digital synthesis
  • Clock generation


器件号 Part Status Pkg. Type Carrier Type MOQ Buy Sample
Last Time Buy LQFP Tray 250


文档标题 language 类型 文档格式 文件大小 日期
star ISL5314 Datasheet 数据手册 PDF 838 KB
PLC21035 - End of Life Notice Product Life Cycle Notice PDF 1.17 MB
PLC17007 - Q1 Cy 17 General Product Life Cycle Notice Product Life Cycle Notice PDF 292 KB
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器件号 文档标题 类型 Company
ISL5314EVAL2 Direct Digital Synthesizer Evaluation Board 评估 Renesas