Dual DVB-C2/C/T2/T demodulator

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The Si21622C integrates two separate high-performance digital demodulators for the DVB-T2/T, and DVB-C2/C standards into a single compact package. Leveraging Silicon Labs' proven digital demodulation architecture, the Si21622C achieves excellent reception performance for each media while significantly minimizing front-end design complexity, cost, and power dissipation. Connecting the Si21622C to a dual terrestrial/cable TV tuner results in a high-performance and cost optimized TV front-end solution.

Silicon Labs' internally developed DVB-C2 demodulator can accept a standard IF (36 MHz) or low-IF input (differential) and support all modes specified by the DVB-C2 standard. The main features of the DVB-C2 mode are 4096-QAM, 6 or 8 MHz bandwidth, management of notch insertion (broadband and narrowband), and support of multiple data slices and PLPs.

DVB-T2 (including T2-Lite) demodulators support all modes specified by the DVB-T2 standard (V1.4.1). Main features of the DVB-T2 mode are, 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 DVB-T and DVB-C, including ITU-T J.83 annex B, demodulators are enhanced versions of proven and broadly used Si2164/67/68/69 Silicon Labs devices.

The Si21622C offers an on-chip blind scanning algorithm for the DVB-C, as well as blind lock function. The Si21622C embeds two independent programmable transport stream interfaces which provide a flexible range of out put modes, including a cross-bar functionality, and are fully compatible with all MPEG decoders or conditional access modules to support any customer application.

Symmetry Electronics is an authorized Silicon Labs distributor.


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Pin-to-pin compatible with all dual demodulator family: Si216x2 and Si218x2
API compatible with all single and all dual demodulators
DVB-T2 and T2-Lite (ETSI EN 302 755-V1.4.1)
Bandwidth: 1.7, 5, 6, 7 or 8 MHz
NorDig Unified 2.5 and D-Book 8 compliant
DVB-C2 (ETSI EN 302 769)
16-QAM to 4096-QAM OFDM demodulation
DVB-T (ETSI EN 300 744)
NorDig Unified 2.5, D-Book 8 compliant
DVB-C (ETSI EN 300 429) / ITU-T J.83 Annex A/B/C
1 to 7.2 MSymbol/s, C-Book compliant
IC serial bus interfaces (master and0 host)
Upgradeable with firmware patch download via fast SPI or IC (broadcast mode supported)
Dual independent differential IF input for T/C tuners
GPIOs and multi-purpose ports (two per demodulator)
Separate flexible TS interfaces with serial or parallel outputs and cross-bar feature
Fast lock times for all standards
Only two power supplies: 1.2 and 3.3 V
8x8 mm, QFN-68 pin package, Pb-free/RoHS compliant

Previously Viewed Products

Dual DVB-C2/C/T2/T demodulator
Part #: Si21622-C60-GMR
Dual DVB-C2/C/T2/T demodulator