DAC5687 - 16 位 500 MSPS 2x-8x 内插双通道数模转换器 (DAC)

DAC5687是TI德州仪器公司的一款高速DAC(>10MSPS)产品，DAC5687是16 位 500 MSPS 2x-8x 内插双通道数模转换器 (DAC)，本站介绍了DAC5687的封装应用图解、特点和优点、功能等，并给出了与DAC5687相关的TI元器件型号供参考。

DAC5687 - 16 位 500 MSPS 2x-8x 内插双通道数模转换器 (DAC) - 高速DAC(>10MSPS) - 数模转换器 - 德州仪器

产品描述

The DAC5687 is a dual-channel 16-bit high-speed digital-to-analog converter (DAC) with integrated 2×, 4×, and 8× interpolation filters, a complex numerically controlled oscillator (NCO), onboard clock multiplier, IQ compensation, and on-chip voltage reference. The DAC5687 is pin-compatible to the DAC5686, requiring only changes in register settings for most applications, and offers additional features and superior linearity, noise, crosstalk, and PLL phase noise performance.

The DAC5687 has six signal processing blocks: two interpolate-by-two digital filters, a fine frequency mixer with 32-bit NCO, a quadrature modulation compensation block, another interpolate-by-two digital filter, and a coarse frequency mixer with fS/2 or fS/4. The different modes of operation enable or bypass the signal processing blocks.

The coarse and fine mixers can be combined to span a wider range of frequencies with fine resolution. The DAC5687 allows both complex or real output. Combining the frequency upconversion and complex output produces a Hilbert transform pair that is output from the two DACs. An external RF quadrature modulator then performs the final single-sideband upconversion.

The IQ compensation feature allows optimization of phase, gain, and offset to maximize sideband rejection and minimize LO feedthrough for an analog quadrature modulator.

The DAC5687 includes several input options: single-port interleaved data, even and odd multiplexing at half-rate, and an input FIFO with either external or internal clock to ease the input timing ambiguity when the DAC5687 is clocked at the DAC output sample rate.

产品特性

500 MSPS
Selectable 2×-8× Interpolation
On-Chip PLL/VCO Clock Multiplier
Full IQ Compensation Including Offset, Gain, and Phase
Flexible Input Options:
- FIFO With Latch on External or Internal Clock
- Even/Odd Multiplexed Input
- Single Port Demultiplexed Input
Complex Mixer With 32-Bit NCO
Fixed Frequency Mixer With fS/4 and fS/2
1.8-V or 3.3-V I/O Voltage
On-Chip 1.2-V Reference
Differential Scalable Output: 2 mA to 20 mA
Pin Compatible to DAC5686
High Performance
- 81-dBc ACLR WCDMA TM1 at 30.72 MHz
- 72-dBc ACLR WCDMA TM1 at 153.6 MHz
Package: 100-Pin HTQFP
APPLICATIONS
- Cellular Base Transceiver Station Transmit Channel
  - CDMA: W-CDMA, CDMA2000, TD-SCDMA
  - TDMA: GSM, IS-136, EDGE/UWC-136
  - OFDM: 802.16
- Cable Modem Termination System

PowerPAD is a trademark of Texas Instruments. Excel is a trademark of Microsoft Corporation. Matlab is a trademark of The MathWorks, Inc. All other trademarks are the property of their respective owners.

下面可能是您感兴趣的TI德州仪器公司高速DAC(>10MSPS)元器件

TI公司产品现货专家，订购TI公司产品不限最低起订量，TI芯片大陆现货即时发货，香港库存3-5天发货，海外库存7-10天发货

寻找全球TI代理商现货货源 - TI公司（德州仪器）电子元件在线订购