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Product details

Parameters

Resolution (Bits) 14 DAC channels 1 Interface JESD204B Sample/update rate (MSPS) 9000 Features Ultra High Speed Rating Catalog Interpolation 10x, 12x, 16x, 18x, 20x, 24x, 6x, 8x Power consumption (Typ) (mW) 2195 SFDR (dB) 97 Architecture Current Source Operating temperature range (C) -40 to 85 Reference: type Ext, Int open-in-new Find other High-speed DACs (>10MSPS)

Package | Pins | Size

FCBGA (AAV) 144 100 mm² 10 x 10 open-in-new Find other High-speed DACs (>10MSPS)

Features

  • 14-Bit Resolution
  • Maximum DAC Sample Rate: 9 GSPS
  • Key Specifications:
    • RF Full-Scale Output Power at 2.1 GHz:
      • DAC38RF80/90/84: 0 dBm
      • DAC38RF83/93/85: 3 dBm (with 2:1 balun)
    • Spectral Performance(on-chip PLL, DIFF):
      • fDAC = 5898.24 MSPS, fOUT = 2.14 GHz
        • WCDMA ACLR: 75 dBc
        • WCDMA alt-ACLR: 77 dBc
      • fDAC = 8847.36 MSPS, fOUT = 3.7 GHz
        • 20 MHz LTE ACLR: 63 dBc
      • fDAC = 9 GSPS, fOUT = 1.8 GHz
        • IMD3 = 70 dBc (–6 dBFS, 10-MHz tone spacing)
        • NSD = –157 dBc/Hz
  • Dual-Band Digital Up-converter per DAC
    • 6, 8, 10, 12, 16, 18, 20 or 24x Interpolation
    • 4 Independent NCOs With 48-Bit Resolution
  • JESD204B Interface, Subclass 1
    • Support for Multichip Synchronization
    • Maximum Lane Rate: 12.5 Gbps
  • Single-Ended Output With Integrated Balun (DAC38RF80/90/84) Covering 700 MHz to 3800 MHz
  • Internal PLL and VCO With Bypass
    • fC(VCO) = 5.9 or 8.9 GHz
  • Power Dissipation: 1.4 to 2.2 W/ch
  • Power Supplies: –1.8 V, 1 V, 1.8 V
  • Package: 10 x 10 mm BGA, 0.8 mm Pitch, 144-Balls

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open-in-new Find other High-speed DACs (>10MSPS)

Description

The DAC38RFxx is a family of high-performance, dual/single-channel, 14-bit, 9-GSPS, RF-sampling digital-to-analog converters (DACs) that are capable of synthesizing wideband signals from 0 to 4.5 GHz. A high dynamic range allows the DAC38RFxx family to generate signals for a wide range of applications including 3G/4G signals for wireless base-stations and radar.

The devices feature a low-power JESD204B Interface with up to 8 lanes with a maximum bit rate of 12.5 Gbps allowing an input data rate of 1.25 GSPS complex per channel. The DAC38RFxx provides two digital up-converters per channel, with multiple options for interpolation rates. A digital quadrature modulator with independent, frequency flexible NCOs are available to support multi-band operation. An optional low-jitter PLL/VCO simplifies the DAC sampling clock generation by allowing use of a lower frequency reference clock.

open-in-new Find other High-speed DACs (>10MSPS)
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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet DAC38RFxx Dual- or Single-Channel, Single-Ended or Differential Output, 14-Bit, 9-GSPS, RF-Sampling DAC With JESD204B Interface and On-Chip PLL datasheet (Rev. C) Jul. 31, 2017
Application notes Impact of Power-Supply Noise on Phase Noise Performance of RF DACs Jun. 13, 2018
Application notes Eye Scan Testing with the DAC38RFxx Aug. 10, 2017
Application notes Quick-Start Methods in Simulating the DAC38RF8x Input/Output Buffer Information Aug. 02, 2017
Application notes DAC38RF8x Test Modes Jul. 25, 2017
Technical articles Digital signal processing in RF sampling DACs – part 2 Apr. 04, 2017
User guides DAC38RF8xEVM User's Guide (Rev. A) Mar. 24, 2017
Technical articles Digital signal processing in RF sampling DACs - part 1 Feb. 13, 2017
Technical articles Why phase noise matters in RF sampling converters Nov. 28, 2016
User guides Efficient Power Supply Scheme for RF-Sampling DAC Reference Design Aug. 22, 2016
Technical articles RF sampling: frequency planning yields a clean spectrum Nov. 18, 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
Description
The DAC38RF82EVM is the circuit board for evaluating DAC38RF82/83/85/93 digital to analog converters (DACs). The EVM can be used to evaluate the performance of the DAC up to 9GSPS sampling rate and it is designed to work with the TSW14J56 EVM. The available FMC connector also makes it possible to (...)
Features
  • Allows evaluation of DAC38RF82/83/85/93 up to 9GSPS sampling rate
  • Supports up to 12.5Gbps serdes signaling rate across FMC
  • Integrated low phase noise On–chip PLL with 2 VCOs to simplify system clock generation. Also supports external clock mode.
  • AC coupled, differential output with on-board 2:1 (...)
GUIS FOR EVALUATION MODULES (EVM) Download
SLAC722D.ZIP (216778 KB)

Software development

FIRMWARE Download
SLAC779A.ZIP (48623 KB)

Design tools & simulation

SIMULATION MODELS Download
SLAM304.ZIP (70 KB) - IBIS Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SCHEMATICS Download
SLAC734.ZIP (10565 KB)

Reference designs

REFERENCE DESIGNS Download
Power Supply Reference Design for Optimizing Spur and Phase Noise in RF-sampling DACs
TIDA-01215 — This reference design provides an efficient power supply scheme to power-up the RF-sampling DAC38RF8x digital-to-analog data converter (DAC) without sacrificing performance and also reduces board area and BOM. The reference design uses both DC/DC switchers and an LDO to power-up the DAC38RF8x while (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
FCBGA (AAV) 144 View options

Ordering & quality

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