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TI’s DAC12DL3200 is a Low Latency, Dual Channel, RF DAC

Written by Stephen Vicinanza

Texas Instruments DAC12DL3200 is an extremely low-latency, dual channel, RF sampling digital-to-analog converter (DAC). The DAC is capable of input and output rates of 6.4-GSPS in single channel mode and a 3.2-GSPS in dual channel mode. It can transmit 2GHz and more signal bandwidths at carrier frequencies and can even approach 8GHz when using the multi-Nyquist output modes. These high output frequency ranges allow for direct sampling through the c-band (8 GHz) and beyond.

The DAC12DL3200 can be run as an I/Q baseband DAC in the dual channel setting. The output frequency range and high sampling rates give the DAC the capability of arbitrary waveform generation (AWG) and also direct digital synthesis (DDS), giving a broader spectrum of frequency generation. The DDS allows for two-tone generation and single-tone generation directly on the chip.

The DAC12DL3200 has an LVDS parallel interface which can consist of 48 LVDS pairs and 4 DDR LVDS clocks. The synchronization of the unit is performed with a strobe signal through the interface and can be sent over the least significant bit (LSB) or over a dedicated strobe LVDS lane.

Each LVDS pair has the ability to run at speeds of up to 1.6 Gbps. The multi-device synchronization is supported by utilizing a synchronization signal (SYSREF) that is compatible with clocking devices of the JESD204B/C.  SYSREF windowing eases synchronization in multi-device scenarios and systems.

Key Features

  • 12-bit resolution
  • Max input and output sample rate
    • Single channel 6.4 GSPS
    • Dual Channel 3.2 GSPS
  • Multi-Nyquist operating modes
    • Single channel NRZ, RTZ, RF
    • Dual channel NRZ, RTZ, RF, 2xRF
  • Low latency – 6 ns to 8 ns
  • Output frequency range >8 GHz
  • Full scale current 21 mA
  • Parallel DDR LVDS interface
    • 1 LVDS DDR clock per 12-bit bus
    • 24 or 48 LVDS pairs up to 1.6 Gbps
    • Source synchronous interface to simplify timing
  • Matching transmission to low latency receiver ADC12DL3200
    • DAC and ADC combined latency <15 ns (not including FPGA)

For further information on the Texas Instruments DAC12DL3200 check out the product page on the website.

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Texas Instruments | ti.com

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For the past 8 years, I have been writing about embedded technologies, added to my technical, academic, and medical editorial experience, with companies like Elsevier and Cambridge University Press. I tell people to read what I write, not try to pronounce my last name. I am always available for comments and suggestions you can reach me at product-editor@circuitcellar.com and I promise I will take the time to reach back out to you. I live in the North East with my wonderful family.

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TI’s DAC12DL3200 is a Low Latency, Dual Channel, RF DAC

by Stephen Vicinanza time to read: 1 min