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DAC5686 数据手册 ( 数据表 )

零件编号产品描述 (功能)生产厂家
DAC5686 16-BIT, 500-MSPS, 2×–16× INTERPOLATING DUAL-CHANNEL DIGITAL-TO-ANALOG CONVERTER TI
Texas Instruments TI
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DESCRIPTION
The DAC5686 is a dual-channel 16-bit high-speed digital-to-analog converter (DAC) with integrated 2×, 4×, 8×, and 16× interpolation filters, a numerically controlled oscillator (NCO), onboard clock multiplier, and on-chip voltage reference. The DAC5686 has been specifically designed to allow for low input data rates between the DAC and ASIC, or FPGA, and high output transmit intermediate frequencies (IF). Target applications include high-speed digital data transmission in wired and wireless communication systems and high-frequency direct-digital synthesis DDS.

FEATURES
• 500-MSPS Maximum-Update-Rate DAC
• WCDMA ACPR
    – 1 Carrier: 76 dB Centered at 30.72-MHz IF, 245.76 MSPS
    – 1 Carrier: 73 dB Centered at 61.44-MHz IF, 245.76 MSPS
    – 2 Carrier: 72 dB Centered at 30.72-MHz IF, 245.76 MSPS
    – 4 Carrier: 64 dB Centered at 92.16-MHz IF, 491.52 MSPS
• Selectable 2×, 4×, 8×, and 16× Interpolation
    – Linear Phase
    – 0.05-dB Pass-Band Ripple
    – 80-dB Stop-Band Attenuation
    – Stop-Band Transition 0.4–0.6 fDATA
• 32-Bit Programmable NCO
• On-Chip 2×–16× PLL Clock Multiplier With Bypass Mode
• Differential Scalable Current Outputs: 2 mA to 20 mA
• On-Chip 1.2-V Reference
• 1.8-V Digital and 3.3-V Analog Supplies
• 1.8-V/3.3-V CMOS-Compatible Interface
• Power Dissipation: 950 mW at Full Maximum Operating Conditions
• Package: 100-Pin HTQFP

APPLICATIONS
• Cellular Base Transceiver Station Transmit Channel
    – CDMA: W-CDMA, CDMA2000, IS-95
    – TDMA: GSM, IS-136, EDGE/UWC-136
• Baseband I and Q Transmit
• Input Interface: Quadrature Modulation for Interfacing With Baseband Complex Mixing ASICs
• Single-Sideband Up-Conversion
• Diversity Transmit
• Cable Modem Termination System

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