Si2107/08/09/10 Satellite Receiver for DVB-S/DSS - Silicon Laboratories - #1

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Satellite Receiver Copyright © 2005 by Silicon Laboratories 10.5.05 Under embargo until November 7, 2005. AGC Acquisition Control Tuner A/D Converter Demodulator Viterbi Decoder De-interleaver RS Decoder Descrambler MPEG-TS LNB Control RF Sythesizer I2C Interface XOUT SCL SDA INT/RLK/GPO TS_ERR TS_SYNC TS_VAL TS_DATA[7:0] TS_CLK PWM/DCS ISEN/NC LNB2/DRL VSEN/TDET RFIP LNB1/TGEN Si2107/08/09/10 Satellite Receiver for DVB-S/DSS Description The Si2107/08/09/10 are a family of pin-compatible complete front end solutions for DSS and DVB-S digital satellite reception. The IC family incorporates a tuner, demodulator, and LNB controller into a single device resulting in a significant reduction in board space and external components. The device supports symbol rates of 1 to 45 MBaud over a 950 to 2150 MHz range. A full suite of features including automatic acquisition, fade recovery, blind scanning, performance monitoring, and DiSEqC Level 2.2 compliant signaling are supported. The Si2108/10 further add short-circuit protection, overcurrent protection, and a step-up dc-dc controller to implement a low-cost LNB supply solution. Si2110/09 versions include a hardware channel scan accelerator for fast “blindscan”. An I2C bus interface is used to configure and monitor all internal parameters. The Si2107/08/09/10 provides a complete front end solution for DVB-S and DSS receivers encompassing the functionality of a satellite network interface module (NIM), with additional LNB power supply regulator functionality. By integrating the RF synthesizer and PLL (including the loop filter), eliminating the analog I/Q signal interface and the control loop interfaces between tuner and demodulator (AGC, clock synchronization), the product family uses minimal external BOM, resulting in a low-cost and easy-to-use satellite RF receiver solution. Features - Single-chip tuner, demodulator, and LNB controller - DVB-S and DSS compliant - QPSK/BPSK demodulation - 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 - Automatic acquisition and fade recovery - Automatic gain control - On-chip blind scan accelerator (Si2109/10 only) - DiSEqC™ 2.2 support - Power, C/N and BER estimators - I2C bus interface - 3.3/1.8 V supply, 3.3 V I/O - Lead-free/RoHS-compliant package Applications - Set-top boxes - Digital video recorders - Digital televisions - Satellite PC-TV - SMATV trans-modulators (Satellite Master Antenna TV)