Dual 12-bit DAC; up to 650 Msps; 2x, 4x or 8x interpolating with JESD204A interface

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

The DAC1208D650 is a high-speed 12-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 DAC1208D650 allows the complex pattern provided through lane 0, lane 1, lane 2 and lane 3, to be converted up 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 DAC1208D650 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.

Features

  • 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 12-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 1.22 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
DAC1208D650HN-C1 Obsolete NLG64 VFQFPN 64 I Yes Tray Availability
DAC1208D650HN-C18 Obsolete NLG64 VFQFPN 64 I Yes Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
DAC1208D650 Datasheet Datasheet PDF 624 KB Jun 15, 2012
PCNs & PDNs
PDN# : DC-14-03 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 994 KB Feb 16, 2014

Evaluation Boards