LA1781MA-MPB-E

Product Overview

LA1781MA-MPB-E from onsemi / Sanyo is a AM/FM car-radio receiver and MPX IC family. This receiver-oriented summary is written for engineers and sourcing teams that need a clear view of the receiver function, operating band and interface requirements.

The content focuses on architecture, RF band or radio standard, power/interface characteristics and practical design notes for BOM sourcing and replacement projects.

Key Features

• Manufacturer: onsemi / Sanyo
• Part Number: LA1781MA-MPB-E
• Device Type: AM/FM car-radio receiver and MPX IC family
• Receiver Architecture: Car-radio AM/FM receiver IC family with FM IF, noise cancellation and MPX receiver functions
• FM Test / IF Reference: 10.7 MHz FM IF test path appears in LA178x family documentation
• AM Functions: AM double-balanced mixer, IF amplifier, detection, AGC and signal-meter functions
• FM / MPX Functions: Stereo/mono switching, pilot cancellation, high-cut control and stereo noise control functions in family variants
• Supply Class: Automotive radio receiver platform with multiple analog supply and control pins
• Application Class: Car radio tuner and receiver modules
• Package / Case: Sanyo/onsemi radio IC package; exact suffix defines DIP/SOP/MFP outline
• Design Notes: Preserve IF filter, MPX, AGC and antenna tuning network values from the original car-radio design.

Applications

Automotive AM/FM head units, car audio receiver boards and legacy radio service parts.

Replacement and sourcing for older Sanyo/onsemi automotive radio tuner IC designs.

Quality & Sourcing

Antrex Electronics can support sourcing for LA1781MA-MPB-E through available stock checks, BOM consolidation and alternative-lot review. For RF receiver and radio receiver parts, package condition, lot/date code, moisture handling and original labeling should be checked before shipment.

For shortage support or legacy builds, Antrex Electronics can coordinate visual inspection, packaging verification and third-party electrical or authenticity testing when required. This helps buyers manage risk when sourcing discontinued, allocated or hard-to-find receiver ICs and modules.