NOTICE - The following device(s) are recommended alternatives:

The DAC1408D650 is a high-speed 14-bit dual channel Digital-to-Analog Converter (DAC) with selectable 2x, 4x or 8x interpolating filters optimized for multi-carrier WCDMA transmitters. Because of its digital on-chip modulation, the DAC1408D650 allows the complex pattern provided through lane 0, lane 1, lane 2 and lane 3, to be converted from baseband to IF. The mixing frequency is adjusted via a Serial Peripheral Interface (SPI) with a 32-bit Numerically Controlled Oscillator (NCO) and the phase is controlled by a 16-bit register. The DAC1408D650 also includes a 2x, 4x or 8x clock multiplier which provides the appropriate internal clocks and an internal regulation to adjust the output full-scale current.


  • 1.8 V and 3.3 V power supplies
  • 32-bit programmable NCO frequency
  • 650 Msps maximum update rate
  • ACPR: 71 dBc
  • two carriers WCDMA
  • fs = 640 Msps
  • fo = 133 MHz
  • Differential CML receiver with embedded termination
  • Differential scalable output current from 1.6 mA to 22 mA
  • Dual 14-bit resolution
  • Embedded complex modulator
  • External analog offset control (10-bit auxiliary DACs)
  • Four JESD204A serial input lanes
  • Fully compatible SPI port
  • IMD3: 80 dBc
  • fs = 640 Msps
  • fo = 140 MHz
  • Industrial temperature range from -40°C to +85°C
  • Input data rate up to 312.5 Msps
  • Integrated PLL can be bypassed
  • Internal digital offset control
  • Inverse (sin x) / x function
  • LMF = 421 or LMF = 211 support
  • LVDS compatible clock inputs
  • On-chip 1.29 V reference
  • Power-down mode and Sleep modes
  • Selectable 2x, 4x or 8x interpolation filters
  • Synchronization of multiple DAC outputs
  • 2's complement or binary offset data format
  • Typical 1.26 W power dissipation at 4x interpolation, PLL off and 640 Msps
  • Very low noise cap free integrated PLL

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
DAC1408D650HN-C1 Obsolete NLG64 VFQFPN 64 I Yes Tray
DAC1408D650HN-C18 Obsolete NLG64 VFQFPN 64 I Yes Reel

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
DAC1408D650 Datasheet PDF 684 KB Jun 15, 2012
PDN# : DC-14-03 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 994 KB Feb 16, 2014

Evaluation Boards

Part Number Title Sort ascending
DAC1408D650W2 DAC1408D650W2 demo board with Lattice ECP3
DAC1408D650W1 DAC1408D650W1 demo board with Virtex 5 FPGA
DAC1408D650WO DAC1408D650W0 demo board