LMV1012TP-07/NOPB

Audio Amplifiers Overview

The LMV1012TP-07/NOPB is a pre-amplified integrated circuit designed for small form factor electret microphones. It operates on a single supply voltage ranging from 2 V to 5 V with a typical supply current of 139 μA at 2.2 V and 158 μA at 5 V. The device provides a fixed voltage gain of 7.8 dB, enabling direct compatibility with existing JFET microphone solutions. It features an A-weighted signal-to-noise ratio of 59 dB and total harmonic distortion of 0.09%. The component functions within a temperature range of -40°C to +85°C and utilizes a 4-bump DSBGA package.

Audio Amplifiers Feature Summary

• Provides built-in fixed voltage gain to replace standard JFET amplifiers in two-wire electret microphone applications.
• Designed for high signal integrity in the presence of ambient or RF noise, suitable for cellular communications.
• Enables a two-pin electret microphone solution with direct pin-to-pin compatibility to existing JFET market standards.

Audio Amplifiers Applications

• Cellular phones
• Headsets
• Mobile communications devices
• Automotive accessories
• Accessory microphone products

Audio Amplifiers Procurement Notes

Verify the specific ordering suffix 'TP' against the Package Option Addendum to confirm the exact physical dimensions and lead finish specifications required for the design. Ensure the selected variant matches the target PCB footprint and thermal requirements. Confirm RoHS compliance status and moisture sensitivity level ratings prior to finalizing procurement orders.

Audio Amplifiers Selection Notes

Select this component when a low-power, space-saving amplifier is needed for ECM canisters. The 7.8 dB gain setting is appropriate for applications requiring modest signal amplification. Consider alternative suffixes if higher gain values such as 15.6 dB or 23.8 dB are necessary for the specific audio application.

Audio Amplifiers Part Context

This device belongs to the LMV1012 Analog Series, which includes variants with different fixed gains (07, 15, 20, 25). The series is engineered to fit inside various size ECM canisters using extremely thin space-saving packages. It serves as a modern replacement for traditional JFET amplifiers used in two-wire microphone configurations.

Audio Amplifiers Replacement Considerations

LMV1012UP-07/NOPB

Audio Amplifiers FAQ

How does the LMV1012 handle RF noise interference?

The device is designed for high signal integrity in the presence of ambient or RF noise. External capacitors can be connected to ground to reduce noise caused by GSM carrier signals, mitigating AM-demodulation effects known as bumblebee noise.

What is the maximum input signal capability?

The maximum input signal is specified at 1 kHz with a Total Harmonic Distortion plus Noise (THD+N) limit. The datasheet specifies a source resistance of 50 Ω for gain measurements.