NJM2113M

Overview

The NJM2113M is a low voltage audio power amplifier in an 8-DMP package. It operates on a supply voltage of 2V to 16V with a typical operating current of 2.7mA. The device delivers output power exceeding 250mW at V+=6V into a 32Ω load. It features differential speaker outputs eliminating coupling capacitors, adjustable closed-loop gain from 0 to 43dB, and a CD pin for power-down with mute functionality.

Feature Summary

• Differential speaker outputs eliminate the need for external coupling capacitors
• CD input enables power-down mode with simultaneous input signal muting
• Closed-loop gain is adjustable via two external resistors

Applications

• Telephone applications such as speakerphones
• Low voltage audio power amplification systems

Procurement Notes

Verify the specific DMP-8 package variant against the official datasheet specifications. Confirm that the component meets the required operating temperature range of -20°C to +75°C for your application environment. Ensure compatibility with the recommended load impedance range of 8Ω to 200Ω before finalizing procurement decisions.

Selection Notes

Select this component when designing circuits requiring direct speaker drive without output capacitors. It is suitable for applications needing adjustable gain within the voice band. Consider the power-down control feature if system power management requires muting capabilities alongside standby modes.

Part Context

This part belongs to the NJM2113 series of low voltage audio power amplifiers manufactured by Nisshinbo Micro Devices Inc. The series includes various package options such as DIP8, SOP8, and SSOP8. The NJM2113M specifically utilizes the DMP8 surface mount package configuration.

Replacement Considerations

NJU2103AM-TE1 is listed as a possible replacement monitor circuit.