SI2147-A30-GM

Video Processing Overview

The Si2147-A30-GM is a worldwide digital TV tuner supporting ATSC/QAM, DVB-T2/T/C2/C, ISDB-T/C, and DTMB standards. It utilizes a digital low-IF architecture with a fifth-generation RF front-end to deliver industry-leading second-order distortion performance and phase noise specifications. The device operates on 3.3 V and 1.8 V supplies or a single 3.3 V supply, consuming 484 mW total power when the crystal oscillator is disabled. It features an RF input frequency range of 42 to 870 MHz, terrestrial NF values between 3.7 dB and 4.0 dB, and cable mode return loss of 9 dB. The DLIF output center frequency ranges from 4 MHz to 8 MHz depending on channel bandwidth.

Video Processing Feature Summary

• Integrates complete tracking filters and LNAs without requiring external baluns, SAW filters, or wire-wound inductors
• Provides high immunity to Wi-Fi and LTE interference through a harmonic rejection mixer
• Delivers optimized return loss via software-selectable cable mode
• Includes integrated power-on reset circuitry for simplified system design

Video Processing Applications

• Digital ½-NIM tuner module
• Integrated Digital TV (iDTV)
• Digital terrestrial and cable set-top boxes (STB)
• Digital PVR, DVD, and Blu-Ray disc recorders
• PC-TV accessories

Video Processing Procurement Notes

Verify that the specific ordering suffix matches the required voltage configuration and package variant. Confirm RoHS compliance status as indicated in the manufacturer documentation. Ensure the selected part number aligns with the intended application environment and regulatory requirements for the target market.

Video Processing Selection Notes

Select this component for designs requiring minimal external passive components due to its fully integrated RF front-end. Consider the single-supply option if board space constraints preclude dual-voltage generation. Evaluate the low-IF output interface compatibility with the downstream SoC or demodulator to ensure signal integrity across the specified frequency range.

Video Processing Part Context

This device belongs to Silicon Laboratories' fourth-generation mass-produced tuner family, building upon field experience from prior generations. It maintains pin- and API-compatibility with previous models to minimize customer development effort while offering superior performance metrics compared to discrete MOPLL-based tuners.

Video Processing Replacement Considerations

Check datasheet addendums for updated ordering information. Verify pinout compatibility with legacy silicon tuner solutions to facilitate direct replacement without redesigning the host PCB layout.