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CBM99D57BQ

14 bit DAC,Quadrature Digital Upconverter(QDUC)

Product Application

HFC data, telephony, and video modems

Wireless base station transmissions

Broadband communications transmissions

Internet telephony

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Overview

Product Details

  The CBM99D57 functions as a universal I/Q modulator and agile upconverter for communications systems where cost, size, power consumption, and dynamic performance are critical. The CBM99D57 integrates a high speed, direct digital synthesizer (DDS), a high performance, high speed, 14-bit digital-to-analog converter (DAC), clock multiplier circuitry, digital filters, and other DSP functions onto a single chip. It provides baseband upconversion for data transmission in a wired or wireless communications system.

Functional Characteristics

  • 1 GSPS internal clock speed (up to 400 MHz analog output)

  • Integrated 1 GSPS 14-bit DAC

  • 250 MSPS input data rate

  • Phase noise ≤ −125 dBc/Hz (400 MHz carrier at 1 kHz offset)

  • Excellent dynamic performance >80 dB narrow-band SFDR

  • 8 programmable profiles for shift keying

  • Sin(x)/(x) correction (inverse sinc filter)

  • Reference clock multiplier

  • Internal oscillator for a single crystal operation

  • Software and hardware controlled power-down

  • Integrated RAM

  • Phase modulation capability

  • Multichip synchronization

  • Easy interface to Blackfin SPORT

  • Interpolation factors from 4× to 252×

  • Interpolation DAC mode

  • Gain control DAC

  • Internal divider allows references up to 2 GHz

  • 1.8 V and 3.3 V power supplies

  • EP_TQFP-100

Sample application

ModelPackagePinsTemp RangePacking QtyRoHSSample
CBM99D57BQEP_TQFP-100100-45℃ to +85℃Tray, 90RoHSOnline Apply


Document download

  • File Name File Description File Size Time Download
  • CBM99D57 Datasheet 1.5M 2023-11-15
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