LA1776M-MPB-E Equivalent & Substitute Parts

Part Overview

The LA1776M-MPB-E is an analog car radio tuner IC manufactured by onsemi, designed for AM/FM front-end signal processing, multiplexing, and switching functions in automotive radio applications. This part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

LA1776M-MPB-E

onsemiIn Stock: 8769LA1776M-MPB-E Datasheet

Current PartRFQ

TDA7706CB

STMicroelectronicsIn Stock: 2166TDA7706CB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LA1776M-MPB-E is determined by the following critical parameters:

• Functional Equivalence: Both the main part and substitute must support AM/FM tuner functionality with front-end signal processing and multiplexing capabilities
• RF Type Compatibility: AM and FM band support is required
• Mounting Technology: Surface mount configuration must be maintained
• Package Pin Count: 64-pin configuration is the baseline requirement
• Automotive Grade: For automotive applications, automotive qualification is a determining factor
• Regulatory Compliance: REACH and ECCN classifications must align with the original part's regulatory status

The TDA7706CB from STMicroelectronics meets these substitution criteria as a 64-pin surface-mount AM/FM tuner IC with automotive qualification.

Parameter Comparison

Engineering Selection Recommendations

The TDA7706CB is available as an active product with AEC-Q100 automotive qualification, providing design continuity for applications requiring AM/FM tuner functionality. The substitute maintains equivalent MSL rating and regulatory compliance status. The TDA7706CB carries ROHS3 compliance, supporting modern environmental standards.

Package footprint differences exist between the LA1776M-MPB-E (64-QIPE 14x14) and TDA7706CB (64-TQFP 10x10). PCB layout modifications are required to accommodate the smaller package footprint of the substitute part.

Frequently Asked Questions (FAQ)

Q: Can the TDA7706CB directly replace the LA1776M-MPB-E without PCB modifications?

A: No. While both parts are 64-pin surface-mount AM/FM tuner ICs, the package footprints differ. The LA1776M-MPB-E uses a 64-QIPE (14x14) package, while the TDA7706CB uses a 64-TQFP (10x10) package. PCB layout redesign is necessary.

Q: What are the key functional parameters that define substitution eligibility?

A: Substitution is determined by AM/FM RF type support, 64-pin configuration, surface-mount technology, and automotive-grade qualification. Both parts meet these criteria.

Q: Is the TDA7706CB suitable for automotive applications?

A: Yes. The TDA7706CB carries automotive grade designation and AEC-Q100 qualification, meeting automotive industry standards.

Q: Are there regulatory compliance differences between these parts?

A: Both parts share identical REACH and ECCN classifications (REACH Unaffected, EAR99). The TDA7706CB additionally carries ROHS3 compliance.

Q: What is the moisture sensitivity consideration for storage and handling?

A: Both parts have MSL 3 rating with a 168-hour floor life. Identical moisture control procedures apply during storage and assembly.