Si21672/662-D Dual Digital TV Demodulators 

Each of the Si21672/662-D dual demodulators integrate two separate high-performance single demodulators in a compact 8 x 8 mm QFN package. The Si21672/662-D support DVB-S2X/S2/T/C/S and DVB-S2X/S2/S, respectively. Leveraging Silicon Labs' proven digital demodulation architecture, each embedded demodulator achieves excellent reception performance for each media while significantly minimizing front-end design complexity and cost. Connecting the Si21672/662-D to both a dual terrestrial/cable TV tuner, and a dual satellite tuner, results in a high-performance and cost optimized dual-channel TV or STB front-end solution.

 

Features

  • DVB-S2 (ETSI EN 302 307-1)
    • QPSK/8PSK demodulator
  • DVB-S2X (ETSI EN 302 307-2)
    • QPSK/8PSK, 8/16/32APSK demodulator
    • Roll-off factors from 0.05 to 0.35
  • DVB-C (ETSI EN 300 429) and ITU-T J.83 Annex A/B/C
    • QAM demodulator and FEC decoder
    • 1 to 7.2 M Symbol(s)
  • DVB-T (ETSI EN 300 744)
    • OFDM demodulator and enhanced FEC decoder
    • NorDig Unified 2.4, D-Book 7 V3 compliant
  • DVB-S (ETSI EN 300 421) and DSS
  • 1 to 45 MSymbol/s for all satellite standards (<40 MSps in 32APSK)
  • LDPC and BCH decoding for S2X/S2 standards
  • Dual DiSEqC™ 2.x interface, Unicable support
  • Enhanced immunity to co-channel interferers
  • I2C serial bus interfaces (master and host)
  • Dual independent differential IF input for T/C tuners and differential ZIF I/Q inputs for satellite tuners
  • GPIOs and multi-purpose ports (two per demodulator)
  • Firmware control for upgradeability
  • Separate flexible TS interfaces with serial or parallel outputs, and cross-bar feature
  • Fast lock times for all media
  • Only two power supplies: 1.2 and 3.3 V
  • 8 mm x 8 mm, QFN68 package, Pb-free/RoHS compliant
  • Pin-to-pin compatible with Si216x2/8x2 dual demods family
  • API compatible with all single and dual demods families

Si21672/662 Product Matrix

Devices
Part Number Description
Si21662-B
Dual DVB-S2/S Digital Satellite Demodulator
Si21662-D
Dual DVB-S2X/S2/S Digital Satellite Demodulator
Si21672-B
Dual DVB-T/C/S2/S Digital Demodulator
Si21672-D
Dual DVB-T/C/S2X/S2/S Digital Demodulator
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