CD97D79TQ
CD97D79TQ
RoHS
Dual , 16 bit, 1 GSPS analog-to-digital converter
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  • CD97D79TQ
    CD97D79TQ
    Price:$0.00

    Package:TQFP-100

    Stock:1000

    Package Qty:Tray, 90

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  • Resolution(Bits):16
  • Channel:2
  • Sample rate(Msps):1000
  • Interface Type:CMOS
  • SFDR(dB): 82
  • Third-order intermodulation(dB):90
  • ACLR(dB):80
  • Noise spectral density(dB/hz):-159
  • Power consumption:1100 mW
  • Supply Voltage:1.8 V / 3.3 V


  • Low power (full operating conditions): 1.0 W @ 1 GSPS, 600mW @ 500 MSPS

  • Single carrier WCDMA ACLR:80dBc @ 80 MHz IF

  • Adjustable analog output: 8.7 mA-31.7 mA (RL = 25 Ω to 50 Ω)

  • Novel 2×, 4×, and 8× interpolator/coarse complex modulator allows carrier placement anywhere in DAC bandwidth

  • Auxiliary DACs allow control of external VGA and offset control

  • Multiple chip synchronization interface

  • High performance, low noise PLL clock multiplier

  • Digital Inverse Sinc Filter

  • 100-lead Exposed Paddle TQFP Package


  • Wireless infrastructure: W-CDMA, GSM, CDMA2000, TD-SCDMA, WiMax, LTE

  • Digital high or low IF synthesis

  • Internal digital up conversion capability

  • Transmit diversity

  • Wideband communications: LMDS/MMDS, point-to-point


Description
The CD97D79TQ is dual, 16-bit, high dynamic range, digital-to-analog converters (DACs)that provide a sample rate of 1 GSPS, permitting multicarrier generation up to the Nyquist frequency. They include features optimized for direct conversion transmit applications, including complex digital modulation, and gain and offset compensation. The DAC outputs are optimized to interface seamlessly with analog quadrature modulators such as the ADL537XFMOD Series modulator made by ADI company. The three-wire interface provides for programming and readback of many internal parameters. Full-scale output current can be programmed over a range of 10 mA to 30 mA. The devices are manufactured on an advanced 0.18μm CMOS process and operate on 1.8 V and 3.3 V supplies for a total power consumption of 1.0W. The CD97D79TQ can be functionally divided into digital filter unit, DAC core unit, clock (including internal PLL) unit, auxiliary DAC, multi-chip synchronization unit, etc. The digital part performs digital interpolation, digital domain real modulation and complex modulation on the input signal. The DAC core converts the digital signal from digital to analog. SPI configures all of the chip. The clock unit provides high-quality clock for the circuit, four auxiliary DACs are usedfor channel gain and offset correction, The multi-chip synchronization unit is responsible for the synchronization function between multiple chips.
Related Products
Products Selection
  • CD97D79TQ
    CD97D79TQ
    Package:TQFP-100 Price:

    Package:TQFP-100

    Stock:1000

    package Qty:Tray, 90

    Price:
    1+   $0.00
    10+   $0.00
    100+   $0.00

Price:
Quantity:

Total:$0.00
Add to Cart