SI2185-A10-GM

Video Processing Overview

The Si2185-A10-GM is a hybrid TV receiver integrating a complete tuner, DVB-T/C digital demodulator, and analog TV demodulator into a single CMOS IC. It supports RF input frequencies from 42 to 870 MHz with supply voltages of 1.8 V and 3.3 V. The device features integrated LNAs and tracking filters, eliminating the need for external SAW filters. It provides serial or parallel transport stream outputs compatible with MPEG decoders.

Video Processing Feature Summary

• Integrates hybrid analog and digital tuners with on-chip crystal oscillator
• Supports PAL/SECAM and NTSC analog standards alongside DVB-T and DVB-C digital protocols
• Includes Blindscan and Blindlock algorithms for channel acquisition
• Delivers CVBS and SIF/AF video/audio outputs

Video Processing Applications

• Integrated Digital TV (iDTV)
• Hybrid PVR and DVD recorders
• Hybrid terrestrial or cable set-top boxes
• Hybrid PC-TV cards and USB dongles

Video Processing Procurement Notes

Verify component authenticity through authorized distributors. Confirm package integrity upon receipt. Ensure proper ESD handling during installation. Validate pin compatibility with target PCB layout. Review datasheet specifications for operating conditions.

Video Processing Selection Notes

Evaluate power consumption requirements against available voltage rails. Assess antenna interface compatibility with the RF_IN pin. Determine if serial or parallel transport stream modes suit the downstream processor. Verify support for required analog and digital broadcast standards in the deployment region.

Video Processing Part Context

This component belongs to the Silicon Labs Si218x series of hybrid TV receivers. It utilizes a third-generation digital low-IF tuner architecture designed for superior reception in crowded spectrum environments. The monolithic design reduces system complexity by consolidating multiple functions onto a single die.

Video Processing Replacement Considerations

Si2185-A10-GM

Video Processing FAQ

Does the Si2185 require external SAW filters?

No, the device integrates complete tracking filters and LNAs, removing the need for external SAW filters.

What analog TV standards are supported?

The demodulator supports PAL, SECAM, and NTSC standards.