Si21692/682-D Dual Digital TV Demodulators

Si21692/682-D dual demodulators integrate two separate high-performance single demodulators in a compact 8x8 mm QFN package and support DVB-T2/S2X/S2/T/C/S and DVB-T2/T/C. Leveraging our 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 Si21692/682-D to 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.

Our DVB-T2 (including T2-Lite) demodulators support all modes specified by the DVB-T2 standard (V1.3.1) and features include: SISO and MISO support, FEF management, fully autonomous signal acquisition including automatic L1 signaling parsing support for all pilot patterns and DVB-T2/T auto-detection. The satellite demodulation functionality allows demodulating widespread DVB-S, DIRECTV™ (DSS), DVB-S2 and DIRECTV™ (AMC) legacy standards, as well as new Part II of DVB-S2 (S2X) satellite broadcast standard. A zero-IF interface allows for a seamless connection to market-proven satellite silicon tuners.

The Si216x2 embeds two independent programmable transport stream interfaces which provide a flexible range of output modes, including a TS cross-bar functionality, and are fully compatible with all MPEG decoders or conditional access modules to support any application.

Package
As small as 8x8 mm
Pin compatible and API compatible
Dual demodulators

Si21692/682 Common Specs

  • DVB-T2 (ETSI EN 302 755-V1.3.1) and T2-Lite (Annex 1)
  • Bandwidth: 1.7, 5, 6, 7 or 8 MHz (and extended BW)
    • Scrambling of L1 post signaling supported
    • FEF management
    • NorDig Unified 2.4, D-Book 7 V3 compliant
  • 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
  • LDPC and BCH decoding for T2 and S2X/S2 standards
  • 1 to 45 MSymbol/s for all satellite standards (<40 MSps in 32APSK)
  • 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
  • 8x8 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
Find the Right Si21692/682 Device Select Columns
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Part Number Description Package Type Package Size (mm)
Dual DVB-T2/T/C Digital Demodulator QFN68 8x8
Dual DVB-T2/S2X/S2/T/C/S Digital Demodulator QFN68 8x8

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