The DAC5688 is a dual-channel 16-bit 800 MSPS digital-to-analog converter (DAC) with dual CMOS digital data bus, integrated 2x-8x interpolation filters, a fine frequency mixer with 32-bit complex numerically controlled oscillator (NCO), on-board clock multiplier, IQ compensation, and internal voltage reference. Different modes of operation enable or bypass various signal processing blocks. The DAC5688 offers superior linearity, noise, crosstalk and PLL phase noise performance.
The DAC5688 dual CMOS data bus provides 250 MSPS input data transfer per DAC channel. Several input data options are available: dual-bus data, single-bus interleaved data, even and odd multiplexing at half-rate, and an input FIFO with either external or internal clock to ease interface timing. Input data can interpolated 2x, 4x or 8x by on-board digital interpolating FIR filters with over 80 dB of stop-band attenuation.
The DAC5688 allows both complex or real output. An optional 32-bit NCO/mixer in complex mode provides frequency upconversion and the dual DAC output produces a complex Hilbert Transform pair. A digital Inverse SINC filter compensates for natural DAC sin(x)/x frequency roll-off. The digital Quadrature Modulator Correction (QMC) feature allows IQ compensation 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 DAC5688 is pin compatible with the DAC5689 which does not include a clock-multiplying PLL. The DAC5688 is characterized for operation over the industrial temperature range of –40°C to 85°C and is available in a 64-pin 9x9mm QFN package.
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | 16-Bit, 800 MSPS 2x–8x Interpolating Dual-Channel Digital-to-Analog Converter (D datasheet (Rev. C) | 2010/08/19 | |
| Analog Design Journal | Q3 2009 Issue Analog Applications Journal | 2018/09/24 | ||
| Analog Design Journal | Interfacing op amps to high-speed DACs, Part 1: Current-sinking DACs | 2009/07/14 | ||
| Application note | Smart Selection of ADC/DAC Enables Better Design of Software-Defined Radio | 2009/04/28 | ||
| Application note | Passive Terminations for Current Output DACs | 2008/11/10 | ||
| Application note | CDCE72010 as a Clocking Solution for High-Speed Analog-to-Digital Converters | 2008/06/08 | ||
| Application note | Phase Noise Performance and Jitter Cleaning Ability of CDCE72010 | 2008/06/02 |
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The DAC5688EVM is a circuit board that allows designers to evaluate the performance of Texas Instruments' dual-channel 16-bit 800 MSPS digital-to-analog converter (DAC) with wideband LVDS data input, integrated 2x/4x/8x interpolation filters, on-board clock multiplier and PLL, 32-bit NCO and (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| VQFN (RGC) | 64 | Ultra Librarian |
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.