Dual-Channel, 16-Bit, 800-MSPS, 1x-4x Interpolating Digital-to-Analog Converter (DAC)
 - DAC3283

DAC3283 (ACTIVE)

Dual-Channel, 16-Bit, 800-MSPS, 1x-4x Interpolating Digital-to-Analog Converter (DAC)

 

Description

The DAC3283 is a dual-channel 16-bit 800 MSPS digital-to-analog converter (DAC) with an 8-bit LVDS input data bus with on-chip termination, optional 2x-4x interpolation filters, digital IQ compensation and internal voltage reference. The DAC3283 offers superior linearity, noise and crosstalk performance.

Input data can be interpolated by 2x or 4x through on-chip interpolating FIR filters with over 85 dB of stop-band attenuation. Multiple DAC3283 devices can be fully synchronized.

The DAC3283 allows either a complex or real output. An optional coarse mixer in complex mode provides frequency upconversion and the dual DAC output produces a complex Hilbert Transform pair. The digital IQ compensation feature allows optimization of phase, gain and offset to maximize sideband rejection and minimize LO feed-through of an external quadrature modulator performing the final single sideband RF up-conversion.

The DAC3283 is characterized for operation over the entire industrial temperature range of –40°C to 85°C and is available in a 48-pin 7×7mm QFN package.

Features

  • Dual, 16-Bit, 800 MSPS DACs
  • 8-Bit Input LVDS Data Bus
    • Byte-Wide Interleaved Data Load
    • 8 Sample Input FIFO
    • Optional Data Pattern Checker
  • Multi-DAC Synchronization
  • Selectable 2x-4x Interpolation Filters
    • Stop-Band Attenuation > 85 dB
  • Fs/2 and ± Fs/4 Coarse Mixer
  • Digital Quadrature Modulator Correction
    • Gain, Phase and Offset Correction
  • Temperature Sensor
  • 3- or 4-Wire Serial Control Interface
  • On-Chip 1.2-V Reference
  • Differential Scalable Output: 2 to 20 mA
  • Single-Carrier TM1 WCDMA ACLR: 82 dBc at
    fOUT = 122.88 MHz
  • Low Power: 1.3 W at 800 MSPS
  • Space Saving Package: 48-pin 7×7mm QFN
  • APPLICATIONS
    • Cellular Base Stations
    • Diversity Transmit
    • Wideband Communications
    • Digital Synthesis

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

 
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
DAC3283 DAC3282
16    16   
800    625   
2    2   
Parallel LVDS    Parallel LVDS   
83    83   
1.8, 3.3    1.8, 3.3   
1150    950   
-40 to 85    -40 to 85   
VQFN    VQFN   
48VQFN: 49 mm2: 7 x 7(VQFN)    48VQFN: 49 mm2: 7 x 7(VQFN)   
Catalog    Catalog   
1x
2x
4x   
1x
2x   
Current Sink    Current Sink   
20    20   
2    2   
Differential    Differential   
Int    Int