Cable Silicon Tuner


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Product Details


  • Single 3.3 V supply voltage
  • RF frequency coverage up to 1 GHz
  • Flexible low IF output from 3 MHz to 7.5 MHz to ease the matching with various demodulators
  • RoHS compliant
  • I²C-bus interface compatible with 3.3 V microcontrollers
  • Strong Immunity to wireless interferers (WLAN, GSM, LTE)
  • Multi-reference clock frequency compliant: 16 MHz, 24 MHz, 25 MHz, 27 MHz, 30 MHz
  • Crystal oscillator output buffer to drive demodulator, SoC or follower tuner
  • Follower Tuner Output (STO), integrated splitter for dual tuner applications
  • Fully integrated oscillators
  • LT output, both in active and Zero Power Loop-Through mode (ZPLT)
  • Fully integrated IF and RF selectivity; eliminating the need for external SAW filters
  • Single-ended RF input (no need for external balun)
  • Enhanced ESD protection (8 kV) on RF_IN and ZPLT pins
  • Alignment free
  • Excellent return loss compatible with cable requirements
  • Integrated RSSI function, readable through I²C-bus
  • Integrated temperature sensor
  • Integrated gain control

Target Applications

  • Digital cable STB applications:
    • DVB-C
    • J83.B
    • J83.C
  • Digital terrestrial STB applications:
    • DTMB
    • DVB-T/DVB-T2 (NORDIG 2.4, DTG D-Book 7)
    • ISDB-T
    • ATSC
  • PVR
  • DOCSIS 2.0 and EuroDOCSIS 2.0 cable modem
  • DOCSIS 3.0 and EuroDOCSIS 3.0

Part numbers include: TDA18250AHN, TDA18250BHN, TDA18250HN, TDA18254AHN.


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