LA8633V-TRM-E

Audio Special Purpose Overview

The LA8633V-TRM-E is a monaural audio signal processor IC manufactured by onsemi (formerly Fairchild Semiconductor). It integrates an FM radio tuner, RDS decoder, and mono audio amplifier into a single package. Designed for portable consumer electronics such as AM/FM radios, it operates from a single 5V supply and features low current consumption. The 'TRM-E' suffix indicates the tape-and-reel packaging variant.

Audio Special Purpose Feature Summary

• Integrated Monaural Audio Amplifier with FM Radio Tuner
• Built-in RDS/RBDS Decoder
• Single 5V Power Supply Operation
• Low Current Consumption: Typical 100mA (Tuner) + 200mA (Audio)
• Stereo/AM/FM Switching Capability
• Automatic Frequency Control (AFC)
• Package: 14-pin SOP (Small Outline Package)

Audio Special Purpose Applications

• Portable AM/FM Radios
• Cassette Players with FM Tuners
• Mini Stereo Systems
• Car Audio Head Units (Auxiliary)
• Consumer Electronics with Integrated Radio

Audio Special Purpose Procurement Notes

This part is an older legacy component. Verify availability through authorized distributors or surplus suppliers. Check for RoHS compliance status as original datasheets may predate strict RoHS mandates; the '-E' suffix often denotes environmental compliance in later revisions, but confirmation via the specific manufacturer datasheet revision is required. Ensure the source is reputable due to the age of the product lifecycle.

Audio Special Purpose Selection Notes

Select this IC for cost-sensitive, space-constrained portable audio applications requiring integrated FM reception and amplification. It eliminates the need for separate tuner and amplifier chips. Note that it provides only monaural audio output; stereo applications require two units or a different device. Verify the required antenna input impedance and IF filter compatibility if designing from scratch.

Audio Special Purpose Part Context

The LA8633V series belongs to onsemi's portfolio of specialized audio and RF integration solutions for consumer electronics. It was widely used in the late 1990s and early 2000s in portable radio designs. It combines the functions of a superheterodyne FM tuner, AM tuner, RDS decoder, and a Class AB audio power amplifier.