SI2165-D-GM

Video Processing Overview

The Si2165-D-GM is a multi-standard DVB-T and DVB-C digital TV demodulator from Skyworks Solutions. It features dual 12-bit ADCs supporting standard IF, Low-IF, or Zero-IF inputs at approximately 36 MHz. The device integrates an embedded 32-bit DSP with preloaded ROM code for immediate operation and supports downloadable patch code via I2C. It complies with NorDig Unified 2.0, D-Book, and C-Book 4.0 standards. Power consumption is typically 140 mW in DVB-T mode and 120 mW in DVB-C mode, utilizing 3.3 V and 1.2 V supplies within a compact QFN-36 package.

Video Processing Feature Summary

• Dual 12-bit ADCs accept first IF, low IF, or zero IF inputs
• Embedded 32-bit DSP with ROM code avoids startup code download
• Supports ultra-fast channel scanning via QuickScan algorithm
• On-chip PID filtering reduces transport stream output bit rate

Video Processing Applications

• Digital terrestrial and cable set-top boxes
• Network Interface Modules (NIM)
• Integrated Digital Television (iDTV) sets
• Personal Video Recorders
• PC-TV tuner peripherals

Video Processing Procurement Notes

Verify the specific ordering suffix against official Skyworks documentation to confirm pin compatibility and firmware version. Confirm RoHS compliance status and packaging details directly with the manufacturer or authorized distributors prior to procurement.

Video Processing Selection Notes

Select this component for designs requiring support for DVB-T hierarchical modes and DVB-C Annex A/C standards. Ensure the host system can accommodate the required 3.3 V and 1.2 V power rails. Verify that the external tuner interface matches the device's I2C pass-through and AGC control capabilities.

Video Processing Part Context

This demodulator is designed to pair with Skyworks’ Si2170/1/2 hybrid silicon tuner family. It serves as a standalone solution for digital television reception, minimizing bill of materials through its compact footprint and integrated signal processing capabilities.

Video Processing Replacement Considerations

No direct replacement part numbers are confirmed in the provided source material. Consult official Skyworks documentation for end-of-life notices or recommended alternative components.

Video Processing FAQ

Does the Si2165 require code download at startup?

No, sophisticated on-chip algorithms ensure optimum reception, and DSP firmware is preloaded into ROM so the device is immediately active at powerup.

What clock frequencies are supported by the Si2165?

The device supports 4, 16, 20, 24, or 27 MHz clock or crystal reference frequencies.