57
LC-39/50LE750
LC-39/50LE751
LC-39/50LE752
Suitable for low power design: 140 mW (typical, 36 MHz IF sampling mode).
Dual 12-bit ADCs: accept 1st IF, low IF, or zero-IF inputs.
DVB-T channel bandwidth: 5, 6, 7, 8 MHz.
DVB-C symbol rate: 1 to 7.2 MBaud.
DSP-based synchronization and control with embedded ROM code avoids need for code download at startup.
Supports patch code downloads for in-field upgradeability.
Independent AGC controls (for IF & RF), plus RSSI measurement.
ACI filtering: fixed 8 MHz SAW filter even for 7 MHz channel.
Advanced performance for SFN networks.
Impulsive noise protection algorithm.
Ultra fast automatic UHF/VHF band scanning (QuickScan).
Master TS output modes, parallel or serial (with tri-state function).
Slave TS parallel output: external device polls data from an embedded FIFO, providing a seamless interface to any USB
controller.
On-chip PID filtering to reduce TS output bit rate.
Up to six GPIOs.
Two 5 V tolerant I2C control buses (host-side, tuner-side) with on-chip I2C repeater.
4, 16, 20, 24, or 27 MHz clock/crystal reference.
3.3V & 1.2 V power supplies only.
IC1103*: DVB-T/C/S/S2 Demodulator (Terrestial and Satellite).
Part number: Si2167-B20-GM (SILICON LABS)
Sharp code: RH-IXD523WJZZQ
http://www.silabs.com/Support%20Documents/TechnicalDocs/Si2167-B20-short.pdf
The Si2167-B20 integrates DVB-T, DVB-C, DVB-S, DVB-S2 (AMC-compliant), and DSS digital demodulators into a single
CMOS chip for terrestrial, cable, and satellite TV standards. Leveraging Silicon Labs' proven digital demodulation architecture,
the Si2167-B20 achieves superior reception performance for each media while minimizing front-end design complexity and cost.
Connecting the Si2167-B20 to a terrestrial and cable hybrid TV tuner, such as Silicon Labs’ Si217x, results in a high
performance and cost optimized TV front-end solution.
DVB-T and DVB-C demodulators are enhanced versions of proven and broadly used Si2167-A10 and Si2169/68 Silicon Labs
devices. Furthermore, ITU J.83 Annex B is also supported for US and South American cable networks. The IF input supports
standard IF (36 MHz) or low-IF.
For DVB-T and DVB-S/DSS, an innovative and advanced FEC decoding scheme is implemented resulting in higher
performance.
The satellite demodulation functionality allows demodulating widely deployed DVB-S, DIRECTV™ (DSS) legacy standards,
and new generation DVB-S2 satellite broadcast. A zero-IF interface allows for a seamless connection to market proven satellite
silicon tuners. Constant Coding Modulation (CCM), QPSK/8PSK demodulation schemes and broadcast profile are the main
specifications of the DVB-S2 demodulator. Silicon Labs' innovative LDPC and BCH decoding architecture delivers best-in-class
reception while exhibiting low power dissipation.
The Si2167-B20 offers an on-chip blind scanning algorithm for DVB-S/S2 and DVB-C standards (as well as blind lock
function). It also integrates DiSEqC™ 2.0 LNB interface for satellite dish control.
MAJOR ICs INFORMATION ( continued )
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