Product details

Resolution (Bits) 16 Number of DAC channels 4 Interface type JESD204B Sample/update rate (Msps) 1600 Features Ultra High Speed Rating Catalog Interpolation 16x, 1x, 2x, 4x, 8x Power consumption (typ) (mW) 1277 SFDR (dB) 81 Architecture Current Source Operating temperature range (°C) -40 to 85 Reference type Int
Resolution (Bits) 16 Number of DAC channels 4 Interface type JESD204B Sample/update rate (Msps) 1600 Features Ultra High Speed Rating Catalog Interpolation 16x, 1x, 2x, 4x, 8x Power consumption (typ) (mW) 1277 SFDR (dB) 81 Architecture Current Source Operating temperature range (°C) -40 to 85 Reference type Int
FCCSP (AAV) 144 100 mm² (10 mm × 10 mm)
  • Resolution: 16-Bit
  • Maximum Sample Rate:
    • DAC37J84: 1.6 GSPS
    • DAC38J84: 2.5 GSPS
  • Maximum Input Data Rate: 1.23GSPS
  • JESD204B Interface
    • 8 JESD204B Serial Input Lanes
    • 12.5 Gbps Maximum Bit Rate per Lane
    • Subclass 1 Multi-DAC Synchronization
  • On-Chip Very Low Jitter PLL
  • Selectable 1x -16x Interpolation
  • Independent Complex Mixers with 48-bit NCO/
    or ±n×Fs/8
  • Wideband Digital Quadrature Modulator Correction
  • Sinx/x Correction Filters
  • Fractional Sample Group Delay Correction
  • Multi-Band Mode: Digital Summation of Independent
    Complex Signals
  • 3/4-Wire Serial Control Bus (SPI):1.5V – 1.8V
  • Integrated Temperature Sensor
  • JTAG Boundary Scan
  • Terminal-Compatible with Dual-Channel DAC37J82/
    DAC38J82 Family
  • Power Dissipation: 1.8W at 2.5GSPS
  • Package: 10x10mm, 144-Ball Flip-Chip BGA
  • Resolution: 16-Bit
  • Maximum Sample Rate:
    • DAC37J84: 1.6 GSPS
    • DAC38J84: 2.5 GSPS
  • Maximum Input Data Rate: 1.23GSPS
  • JESD204B Interface
    • 8 JESD204B Serial Input Lanes
    • 12.5 Gbps Maximum Bit Rate per Lane
    • Subclass 1 Multi-DAC Synchronization
  • On-Chip Very Low Jitter PLL
  • Selectable 1x -16x Interpolation
  • Independent Complex Mixers with 48-bit NCO/
    or ±n×Fs/8
  • Wideband Digital Quadrature Modulator Correction
  • Sinx/x Correction Filters
  • Fractional Sample Group Delay Correction
  • Multi-Band Mode: Digital Summation of Independent
    Complex Signals
  • 3/4-Wire Serial Control Bus (SPI):1.5V – 1.8V
  • Integrated Temperature Sensor
  • JTAG Boundary Scan
  • Terminal-Compatible with Dual-Channel DAC37J82/
    DAC38J82 Family
  • Power Dissipation: 1.8W at 2.5GSPS
  • Package: 10x10mm, 144-Ball Flip-Chip BGA

The terminal-compatible DAC37J84/DAC38J84 family is a low power, 16-bit, quad-channel, 1.6/2.5 GSPS digital to analog converter (DAC) with JESD204B interface.

Digital data is input to the device through 1, 2, 4 or 8 configurable serial JESD204B lanes running up to 12.5 Gbps with on-chip termination and programmable equalization. The interface allows JESD204B Subclass 1 SYSREF based deterministic latency and full synchronization of multiple devices.

The device includes features that simplify the design of complex transmit architectures. Fully bypassable 2x to 16x digital interpolation filters with over 90 dB of stop-band attenuation simplify the data interface and reconstruction filters. An on-chip 48-bit Numerically Controlled Oscillator (NCO) and independent complex mixers allow flexible and accurate carrier placement.

A high-performance low jitter PLL simplifies clocking of the device without significant impact on the dynamic range. The digital Quadrature Modulator Correction (QMC) and Group Delay Correction (QDC) enable complete IQ compensation for gain, offset, phase, and group delay between channels in direct up-conversion applications. A programmable Power Amplifier (PA) protection mechanism is available to provide PA protection in cases when the abnormal power behavior of the input data is detected.

The terminal-compatible DAC37J84/DAC38J84 family is a low power, 16-bit, quad-channel, 1.6/2.5 GSPS digital to analog converter (DAC) with JESD204B interface.

Digital data is input to the device through 1, 2, 4 or 8 configurable serial JESD204B lanes running up to 12.5 Gbps with on-chip termination and programmable equalization. The interface allows JESD204B Subclass 1 SYSREF based deterministic latency and full synchronization of multiple devices.

The device includes features that simplify the design of complex transmit architectures. Fully bypassable 2x to 16x digital interpolation filters with over 90 dB of stop-band attenuation simplify the data interface and reconstruction filters. An on-chip 48-bit Numerically Controlled Oscillator (NCO) and independent complex mixers allow flexible and accurate carrier placement.

A high-performance low jitter PLL simplifies clocking of the device without significant impact on the dynamic range. The digital Quadrature Modulator Correction (QMC) and Group Delay Correction (QDC) enable complete IQ compensation for gain, offset, phase, and group delay between channels in direct up-conversion applications. A programmable Power Amplifier (PA) protection mechanism is available to provide PA protection in cases when the abnormal power behavior of the input data is detected.

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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet Quad-Channel, 16-Bit, 1.6/2.5 GSPS, Digital-to-Analog Converters datasheet (Rev. B) PDF | HTML Mar 24, 2014
Application note DAC3xJ8x Device Initialization and SYSREF Configuration Sep 27, 2017
Application note System solution for avionics & defense Sep 23, 2015
White paper Ready to make the jump to JESD204B? White Paper (Rev. B) Mar 19, 2015
EVM User's guide Altera JESD204B IP Core and TI DAC37J84 Hardware Checkout Report (Rev. A) Sep 15, 2014
Design guide Analog Interfacing Networks for DAC348x and Modulators (TIDA-00077) (Rev. A) Aug 14, 2013
Application note DAC348x Device Configuration and Synchronization Feb 18, 2013
Application note High Speed, Digital-to-Analog Converters Basics (Rev. A) Oct 23, 2012

Design & development

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

Firmware

TI204C-IP — Request for JESD204 rapid design IP

The JESD204 rapid design IP has been designed to enable FPGA engineers to achieve an accelerated path to a working JESD204 system. The IP has been architected in a way that downstream digital processing and other application logic are isolated from most of the performance- and timing-critical (...)

Supported products & hardware
GUI for evaluation module (EVM)

DATACONVERTERPRO-SW — High Speed Data Converter Pro GUI Installer, v5.31

This high-speed data converter pro GUI is a PC (Windows® XP/7/10 compatible) program designed to aid in evaluation of most TI high-speed data converter [analog-to-digital converter (ADC) and digital-to-analog converter (DAC)] and analog front-end (AFE) platforms. Designed to support the entire (...)

Supported products & hardware
GUI for evaluation module (EVM)

SLAC644 — DAC3XJ8XEVM Software

Supported products & hardware
GUI for evaluation module (EVM)

SLAC661 — TSW3xJ8xEVM Software

Supported products & hardware
Simulation model

DAC38J84 IBIS Model

SLAM197.ZIP (50 KB) - IBIS model
Supported products & hardware
Simulation model

DAC38RF8x IBIS-AMI Model (Rev. A)

SLAM343A.ZIP (24658 KB) - IBIS-AMI model
Supported products & hardware
Reference design

TIDA-00335 — High Bandwidth, High Frequency Transmitter Reference Design

This design illustrates the circuit modifications required to support high bandwidth and  high frequency applications using current source DACs like the  DAC38J84 with the TRF3704 modulator.  The TRF3704 is a 6 GHz modulator capable of supporting wide BB bandwidths.  The (...)

Supported products & hardware
Reference design

TIDA-00409 — 1-GHz Bandwidth Dual Channel Transmitter up to 4-GHz Reference Design

The TSW38J84 EVM reference design provides a platform to demonstrate a wideband dual transmit solution that incorporates an integrated LO.  The reference design utilizes the 2.5 GSPS DAC38J84 device with the high performance modulators: TRF3722 (including integrated PLL/VCO) and TRF3705. The (...)

Supported products & hardware
Reference design

TIDA-00996 — Synchronized Multi-Transmitter Reference Design: Method of Time-Aligning Multiple DACs

To further increase the range, data rate, and reliability of modern mobile communications systems, system designers continue to place more emphasis on multiple-antenna transmitter systems to achieve combinations of spatial diversity and spatial multiplexing. Such implementations can further (...)

Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
FCCSP (AAV) 144 Ultra Librarian

Ordering & quality

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