MT9162AS

Telecom Overview

The MT9162AS is a programmable telecommunications codec manufactured by Microsemi Corporation. It integrates analog and digital functions to perform voice signal processing using A-law or μ-law companding algorithms. The device operates on a single 5 V power supply and supports an extended industrial temperature range from -40 °C to +85 °C. It features a maximum gain tolerance of 1.6 dB and includes built-in filtering capabilities for signal conditioning. The component is housed in a 20-pin plastic dual in-line package (PDIP) with a 0.300-inch body width, designed for through-hole mounting in standard telecom equipment architectures.

Telecom Feature Summary

• Supports programmable A-law and μ-law companding standards for international telephony compatibility
• Integrates low-pass and anti-aliasing filters within the CMOS architecture
• Operates reliably across the full industrial temperature spectrum without external thermal management

Telecom Applications

• Public Switched Telephone Network (PSTN) interface circuits
• Digital Signal Processing (DSP) front-end modules
• Telecommunications base station audio interfaces

Telecom Procurement Notes

Verify the specific suffix 'S' against the manufacturer's current production status, as it may indicate a specialized temperature grade or packaging variant. Confirm RoHS compliance requirements prior to procurement, as older Microsemi components often carry lead-based terminations. Ensure the DIP-20 footprint matches the target PCB design constraints and that the 5 V logic levels are compatible with the system microcontroller.

Telecom Selection Notes

Select this component when a dedicated codec solution is required for standard PCM voice channels. Compare performance metrics such as total harmonic distortion and dynamic range against alternative codecs if high-fidelity audio is necessary. Verify that the 1.6 dB gain tolerance meets the link budget requirements of the application. Consider the PDIP package size limitations if space-constrained designs require surface-mount alternatives.

Telecom Part Context

This part belongs to the Microsemi family of telecommunications integrated circuits, specifically designed for voice channel processing. It serves as a bridge between analog telephone lines and digital data buses. The device is typically used in conjunction with digital switches or multiplexers to handle voice digitization and reconstruction tasks in legacy and modern telecom infrastructure.

Telecom Replacement Considerations

Check for direct pin-compatible upgrades from Microchip or other vendors offering similar CMOS codecs. Verify that any substitute maintains the same A/μ-law support and 5 V operating voltage. Ensure the replacement package matches the DIP-20 form factor or requires adapter solutions.