Si21xx Satellite Receivers
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- In detail
The Si21xx satellite receiver product family is the industry's first fully-integrated single-chip satellite RF front-end solution for direct broadcast satellite (DBS).
Offering the highest performance, smallest size and easiest-to-use receiver solution for DBS, the Si21xx devices are ideal for all free-to-air (FTA) and pay-TV DBS equipment including satellite set-top boxes, PC cards for satellite TV, DBS receivers for automotive or avionic use, DVD recorders and digital TVs with integrated satellite receivers.
The satellite receiver family incorporates a tuner, demodulator and LNB controller into a single chip, resulting in a significant reduction in board space and external components. The IC supports symbol rates of 1 to 45 MBaud over a 950 to 2150 MHz range. The ICs support a full suite of features including automatic acquisition, fade recovery, blind scanning, performance monitoring and DiSEqC™ Level 2.2 compliant signaling. The Si2108/10 ICs further add short-circuit protection, overcurrent protection and a step-up dc-dc controller to implement a low-cost LNB supply solution. Si2109/10 versions include a hardware channel scan accelerator for fast "blindscan". An I²C bus interface is used to configure and monitor all internal parameters.
Features
- Single-chip tuner, demodulator and LNB controller
- DVB-S and DSS compliant
- Proprietary QuickScan / ultra-fast on-chip scan (Si2109/10 only)
- Integrated step-up dc-dc converter for LNB power supply (Si2108/10 only)
- Input signal level: -81 to -18 dBm
- Symbol rate range: 1 to 45 MBaud