LM1036N/NOPB

Audio Special Purpose Overview

The LM1036N/NOPB is a dual DC-operated tone, volume, and balance circuit designed for stereo audio applications. It operates on a supply voltage range of 9V to 16V with a typical supply current of 45 mA. The device provides a typical volume control range of 75 dB and tone control ranges of ±15 dB for bass and treble. Key electrical specifications include a typical channel separation of 75 dB and a signal-to-noise ratio of 80 dB at an input level of 0.3 Vrms. Total harmonic distortion is typically 0.06% at 0 dB gain. The component is housed in a 20-PDIP package and supports through-hole mounting.

Audio Special Purpose Feature Summary

• Dual DC-controlled processing for bass, treble, balance, and volume functions
• Wide supply voltage range from 9V to 16V
• Integrated zener regulated output (Pin 17) for biasing control potentiometers
• Loudness compensation capability via dedicated control input

Audio Special Purpose Applications

• Car radio audio systems
• Television audio circuits
• Stereo audio preamplifiers

Audio Special Purpose Procurement Notes

The LM1036N/NOPB is classified as OBSOLETE by Texas Instruments, indicating discontinued production. Verification of availability requires checking distributor stock levels directly. Designers should confirm the final status of the component before initiating new designs due to the end-of-life designation.

Audio Special Purpose Selection Notes

Selection requires verifying the 20-PDIP package dimensions against the PCB footprint. The device requires a single supply voltage between 9V and 16V. Tone response characteristics are determined by external capacitors; standard values are 0.39 μF for bass and 0.01 μF for treble. Ensure the control interface matches the DC voltage requirements for the specific pins.

Audio Special Purpose Part Context

This part belongs to the LM1036 family of audio processors. The 'N' suffix denotes the PDIP package variant, while '/NOPB' indicates compliance with RoHS standards and absence of lead/bromine. Other variants in the family include the SOIC packaged LM1036M/NOPB.

Audio Special Purpose Replacement Considerations

Public documentation identifies the LM4610 as a compatible alternative offering similar DC control functionality with added 3D sound field expansion features.