16-Bit 1.0 GSPS 2x-4x Interpolating Dual-Channel DAC Converter (Rev. A)
Texas Instruments
Description
The DAC5682Z is a dual-channel 16-bit 1.0 GSPS digital-to-analog converter (DAC) with wideband LVDS data input, integrated 2x/4x interpolation filters, on-board clock multiplier and internal voltage reference. The DAC5682Z offers superior linearity, noise, crosstalk and PLL phase noise performance.The DAC5682Z integrates a wideband LVDS port with on-chip termination. Full-rate input data can be transferred to a single DAC channel, or half-rate and 1/4-rate input data can be interpolated by on-board 2x or 4x FIR filters. Each interpolation FIR is configurable in either Low-Pass or High-Pass mode, allowing selection of a higher order output spectral image. An on-chip delay lock loop (DLL) simplifies LVDS interfacing by providing skew control for the LVDS input data clock. The DAC5682Z allows both complex or real output. An optional Fs/4 coarse mixer in complex mode provides coarse frequency upconversion and the dual DAC output produces a complex Hilbert Transform pair. An external RF quadrature modulator then performs the final single sideband up-conversion. The DAC5682Z is characterized for operation over the industrial temperature range of -40°C to 85°C and is available in a 64-pin QFN package. Other single-channel members of the family include the interpolating DAC5681Z and non-interpolating DAC5681.
Features
16-Bit Digital-to-Analog Converter (DAC)1.0 GSPS Update Rate16-Bit Wideband Input LVDS Data Bus8 Sample Input FIFOInterleaved I/Q data for Dual-DAC ModeHigh Performance73 dBc ACLR WCDMA TM1 at 180 MHz2x-32x Clock Multiplying PLL/VCO2x or 4x Interpolation FiltersStopband Transition 0.4-0.6 FdataFilters Configurable in Either Low-Pass or High-Pass Mode Allows Selection of Higher Order ImageFs/4 Coarse Mixer On Chip 1.2 V ReferenceDifferential Scalable Output: 2 to 20 mAPackage: 64-Pin 9 ×1; 9 mm QFNAPPLICATIONSCellular Base StationsBroadband Wireless Access (BWA)WiMAX 802.16Fixed Wireless BackhaulCable Modem Termination System (CMTS)
Related Datasheets
| Part Number | Description | Category |
| ADS1281 | High-Resolution Analog-to-Digital Converter (Rev. A) | Cards and Modules |
| ADS5281 | 12-Bit Octal-Channel ADC Family Up to 65MSPS (Rev. G) | Cards and Modules |
| ADS5463 | 12-Bit 500-MSPS ADC (Rev. A) | Cards and Modules |
| DAC5681 | 16-bit 1.0 GSPS Digital-To-Analog Converter | Cards and Modules |
| DAC5686 | 16-Bit 500 MSPS 2x-16x Interpolating Dual-Channel DAC (Rev. E) | Cards and Modules |
| DAC5687 | 16-Bit 500 MSPS 2x-8x Interpolating Dual-Channel DAC (Rev. E) | Cards and Modules |
| DAC5687-EP | 16-Bit 500 MSPS 2x-8x Interpolating Dual-Channel DAC | Cards and Modules |
| DAC5688 | 16-Bit, 800 MSPS 2x?8x Interpolating Dual-Channel Digital-to-Analog Converter (D (Rev. A) | Cards and Modules |
| DAC8564 | 16-Bit, Quad Chan, Ultra-Low Glitch, Voltage Output DAC w/2.5V, 2ppm/C Int Ref (Rev. A) | Cards and Modules |
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