SI2167-B22-GMR

Video Processing Overview

The Si2167-B22 is a CMOS digital TV demodulator integrating DVB-T, DVB-C, DVB-S, and DVB-S2 standards. It operates with two power supplies: VDD_VCORE (1.14 to 1.30 V) and VDD_VANA/VDD_VIO (3.00 to 3.60 V). Total power consumption ranges from 180 mW for DVB-C to 465 mW for DVB-S2. The device supports input clock references of 4 to 30 MHz and crystal frequencies of 16 to 30 MHz. Thermal resistance is 32 °C/W on a 2-layer PCB and 23 °C/W on a 4-layer PCB.

Video Processing Feature Summary

• Integrates DVB-T, DVB-C, DVB-S, and DVB-S2 demodulators with enhanced FEC decoding.
• Includes an on-chip blind scanning algorithm and DiSEqC 2.0 LNB interface.
• Features three ADCs with independent IF and ZIF inputs for terrestrial/cable and satellite signals.
• Provides flexible transport stream interfaces compatible with MPEG decoders.

Video Processing Applications

• Full-NIM systems
• Integrated Digital TV (iDTV)
• Digital terrestrial, cable, and satellite set-top boxes
• PC-TV accessories
• PVR, DVD, and Blue Ray disc recorders

Video Processing Procurement Notes

Verify the specific ordering suffix against official Skyworks documentation to confirm package type and compliance status. Confirm availability through authorized distributors as supply conditions may vary. Ensure firmware compatibility requirements are met for integration with existing host controllers.

Video Processing Selection Notes

Select this component for designs requiring a single-chip solution for multiple broadcast standards. Verify pin-to-pin compatibility with legacy Si2164/69/68/66 devices if upgrading existing designs. Check thermal performance requirements based on the target PCB layer count.

Video Processing Part Context

The Si2167-B22 belongs to the Si2167 family of multimedia digital TV demodulators. It is designed to connect with hybrid TV tuners like the Si217x series to form optimized front-end solutions. The device leverages proven digital demodulation architecture to minimize design complexity.

Video Processing Replacement Considerations

The datasheet confirms pin-to-pin and API compatibility with Si2164, Si2169, Si2168, and Si2166 devices.

Video Processing FAQ

What FEC decoding schemes does the Si2167-B22 support?

It implements advanced FEC decoding for DVB-T and DVB-S/DSS, and utilizes LDPC and BCH decoding architecture for DVB-S2.

Does the Si2167-B22 support blind scanning?

Yes, it offers an on-chip blind scanning algorithm for DVB-S/S2 and DVB-C standards, including a blind lock function.