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數據轉換器
數位轉類比轉換器 (DAC)
高速 DAC (>10 MSPS)

DAC5687

現行

雙通道 16 位元 500-MSPS、1x-8x 內插數位轉類比轉換器 (DAC)

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產品規格表

DAC5687

現行
產品規格表 立即訂購

產品詳細資料

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
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
HTQFP (PZP) 100 256 mm² 16 x 16
  • 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.
  • 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.

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.

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.
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技術文件

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重要文件 類型 標題 格式選項 日期
* Data sheet 16-Bit 500 MSPS 2x-8x Interpolating Dual-Channel DAC datasheet (Rev. E) 2006年 9月 20日
Analog Design Journal Q3 2009 Issue Analog Applications Journal 2018年 9月 24日
Application note High Speed, Digital-to-Analog Converters Basics (Rev. A) 2012年 10月 23日
Analog Design Journal Interfacing op amps to high-speed DACs, Part 1: Current-sinking DACs 2009年 7月 14日
Application note Passive Terminations for Current Output DACs 2008年 11月 10日
Application note CDCE72010 as a Clocking Solution for High-Speed Analog-to-Digital Converters 2008年 6月 8日
Application note Phase Noise Performance and Jitter Cleaning Ability of CDCE72010 2008年 6月 2日
User guide TSW3003 Demonstration Kit (Rev. D) 2007年 8月 28日
Product overview TSW3003: RF Transmit Signal Chain Demonstration Kit Bulletin 2006年 9月 28日
Product overview TSW3000: DAC5687 and TRF3701/02 16-Bit, 500 MSPS DAC Coupled with Direct IQ Modu 2005年 9月 14日
Application note DAC5686/DAC5687 Clock Generation Using PLL & External Clock Modes (Rev. A) 2005年 7月 21日

設計與開發

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開發板

DAC5688EVM — DAC5688 評估模組

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 (...)

使用指南: PDF
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開發模組 (EVM) 的 GUI

DATACONVERTERPRO-SW — High Speed Data Converter Pro GUI Installer, v5.31

This high-speed data converter pro GUI is a PC (Windows® XP/7/10 compatible) program designed to aid in evaluation of most TI high-speed data converter [analog-to-digital converter (ADC) and digital-to-analog converter (DAC)] and analog front-end (AFE) platforms. Designed to support the entire (...)

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開發模組 (EVM) 的 GUI

SLWC071 — DAC5687 EVM SPI Installation Software

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模擬型號

DAC5687 IBIS Model (Rev. C)

SLWC062C.ZIP (62 KB) - IBIS Model
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計算工具

DAC5687CALC — DAC5687 元件計算機

DAC5687CALC calculates appropriate external component values for the DAC5687 given a set of system parameters while highlighting intermediate calculations.
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計算工具

SLWC084 — Calculation Utility

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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一，涵蓋我們的類比和電源產品組合，以及特定類比行為模型，且使用無需支付費用。

PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。 

在 PSpice for TI 設計與模擬工具中，您可以搜尋 TI (...)
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