TI DAC3283IRGZR

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 2x4x 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.

• 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

• Cellular Base Stations
• Diversity Transmit
• Wideband Communications Digital Synthesis