- 制造厂商:TI
- 产品类别:数据转换器
- 技术类目:数模转换器 (DAC) - 高速数模转换器 (>10MSPS)
- 功能描述:双通道、16 位、500MSPS 1x-8x 内插数模转换器 (DAC)
- 点击这里打开及下载DAC5687的技术文档资料
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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.
- 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
- Cellular Base Transceiver Station Transmit Channel
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- Resolution (Bits)
- 16
- Number of DAC channels (#)
- 2
- Interface type
- Parallel CMOS
- Sample/update rate (MSPS)
- 500
- Features
- High Performance
- Rating
- Catalog
- Interpolation
- 1x, 2x, 4x, 8x
- Power consumption (Typ) (mW)
- 1410
- SFDR (dB)
- 78
- Architecture
- Current Sink
- Operating temperature range (C)
- -40 to 85
- Reference type
- Int
DAC5687的完整型号有:DAC5687IPZP、DAC5687IPZPR,以下是这些产品的关键参数及官网采购报价:
DAC5687IPZP,工作温度:-40 to 85,封装:HTQFP (PZP)-100,包装数量MPQ:90个,MSL 等级/回流焊峰值温度:Level-3-260C-168 HR,引脚镀层/焊球材料:NIPDAU,TI官网DAC5687IPZP的批量USD价格:35.299(1000+)
DAC5687IPZPR,工作温度:-40 to 85,封装:HTQFP (PZP)-100,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-3-260C-168 HR,引脚镀层/焊球材料:NIPDAU,TI官网DAC5687IPZPR的批量USD价格:33.299(1000+)
DAC5688EVM — DAC5688 评估模块
DAC5688EVM 是一块电路板,它允许设计人员评估具有宽带 LVDS 数据输入、集成 2x/4x/8x 内插滤波器、32 位 NCO 和内部参考电压的德州仪器 (TI) 双通道 16 位 800MSPS 数模转换器 (DAC)。EVM 提供了可在各种时钟、输入条件下测试 DAC5688 的灵活环境。
它能与 TSW3100 配合使用以执行各种测试程序。TSW3100 生成了测试模式,该模式将通过单行速度可达 250MSPS 的双路 CMOS 端口被馈送至 DAC5688。DAC5688EVM 具有可使 TSW3100 板与 DAC5688 同步的可编程时钟芯片。
DATACONVERTERPRO-SW — High Speed Data Converter Pro 软件
此高速数据转换器专业 GUI 是一款 PC 程序(兼容 Windows XP/7/10),旨在帮助评估大多数 TI 高速数据转换器和模拟前端 (AFE) 平台。DATACONVERTERPRO-SW 支持整个 TSW14xxx 系列的数据采集和模式生成卡,为分析时域和频域中的数据转换器提供了快速强大的解决方案以及单音调、多音调和调制信号支持。此 GUI 还兼容用于快速合成单音调、多音调和调制信号的 TI 模式生成 GUI。用户可以为 DATACONVERTERPRO-SW 提供定制模式,以加载到 TI 数模转换器 (DAC)。支持从模数转换器 (ADC) 采集内导出 CSV (...)
DAC5687 IBIS Model (Rev. C)
PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用,包括业内超大的模型库之一,涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。借助?PSpice for TI 的设计和仿真环境及其内置的模型库,您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案,然后再进行布局和制造,可缩短产品上市时间并降低开发成本。
在?PSpice for TI 设计和仿真工具中,您可以搜索 TI (...)
DAC5687CALC — DAC5687 组件计算器
DAC5687CALC calculates appropriate external component values for the DAC5687 given a set of system parameters while highlighting intermediate calculations.