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DAC5687 Datasheet PDF - Texas Instruments

Part NameDescriptionManufacturer
DAC5687 16-BIT, 500 MSPS 2×–8× INTERPOLATING DUAL-CHANNEL DIGITAL-TO-ANALOG CONVERTER (DAC) Texas-Instruments
Texas Instruments Texas-Instruments
Other PDF  no available.
DAC5687 Datasheet PDF : DAC5687 pdf   
DAC5687 image

DESCRIPTION
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 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.

FEATURES
• 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

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DAC5687 16-BIT, 500 MSPS 2×–8× INTERPOLATING DUAL-CHANNEL DIGITAL-TO-ANALOG CONVERTER (DAC) DAC5687 View Texas Instruments
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