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.

Features

  • 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)

Applications

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

tuneProduct Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Last Time Buy LQFP Tray 250
Availability

descriptionDocumentation

Title language Type Format File Size Date
Datasheets & Errata
star ISL5314 Datasheet Datasheet PDF 838 KB
PCNs & PDNs
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
PCN15013 - EFTEC-64T LF convert to C194 LF due to impact of Japan Earthquake Product Change Notice PDF 85 KB

memoryBoards & Kits

Part Number Title Type Company
ISL5314EVAL2 Direct Digital Synthesizer Evaluation Board Evaluation Renesas