Quad-Channel, 16-Bit, 1.6-GSPS, 1x-16x Interpolating Digital-to-Analog Converter (DAC) - DAC37J84

DAC37J84 (ACTIVE)

Quad-Channel, 16-Bit, 1.6-GSPS, 1x-16x Interpolating Digital-to-Analog Converter (DAC)

 

Description

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.

Features

  • 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

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Parametrics Compare all products in High Speed DACs (>10MSPS)

 
Internal PLL
Resolution (Bits)
Sample / Update Rate (MSPS)
DAC Channels
Interface
SFDR (dB)
Supply Voltage(s) (V)
Power Consumption (Typ) (mW)
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
Rating
Interpolation
Architecture
Output Range Max. (mA)
Output Range Min. (mA)
Output Type
Reference: Type
DAC37J84 DAC37J82 DAC38J82 DAC38J84 DAC39J82 DAC39J84
Yes    Yes    Yes    Yes    Yes    Yes   
16    16    16    16    16    16   
1600    1600    2500    2500    2800    2800   
4    2    2    4    2    4   
JESD204B    JESD204B    JESD204B    JESD204B    JESD204B    JESD204B   
81    81    79    79    68    68   
0.9, 1.8, 3.3    0.9, 1.8, 3.3    0.9, 1.8, 3.3    0.9, 1.8, 3.3    1.0, 1.8, 3.3    1.0, 1.8, 3.3   
1277    789    1144    1859    1135    1619   
-40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85   
FCBGA    FCBGA    FCBGA    FCBGA    FCBGA    FCBGA   
See datasheet (FCBGA)    See datasheet (FCBGA)    See datasheet (FCBGA)    See datasheet (FCBGA)    See datasheet (FCBGA)    See datasheet (FCBGA)   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
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2x
4x
8x
16x   
1x
2x
4x
8x
16x   
1x
2x
4x
8x
16x   
1x
2x
4x
8x
16x   
1x
2x
4x
8x
16x   
1x
2x
4x
8x
16x   
Current Source    Current Source    Current Source    Current Source    Current Source    Current Source   
30    30    30    30    30    30   
10    10    10    10    10    10   
Differential    Differential    Differential    Differential    Differential    Differential   
Int    Int    Int    Int