LMV1012 - 用于高增益麦克风的模拟前置放大器 IC

LMV1012是TI德州仪器公司的一款无产品，LMV1012是用于高增益麦克风的模拟前置放大器 IC，本站介绍了LMV1012的封装应用图解、特点和优点、功能等，并给出了与LMV1012相关的TI元器件型号供参考。

LMV1012 - 用于高增益麦克风的模拟前置放大器 IC - 无 - 麦克风前置放大器 - 德州仪器

产品描述

The LMV1012 is an audio amplifier series for small form factor electret microphones. This 2-wire portfolio is designed to replace the JFET amplifier currently being used. The LMV1012 series is ideally suited for applications requiring high signal integrity in the presence of ambient or RF noise, such as in cellular communications. The LMV1012 audio amplifiers are specified to operate over a 2.2V to 5.0V supply voltage range with fixed gains of 7.8 dB, 15.6 dB, 20.9 dB, and 23.8 dB. The devices offer excellent THD, gain accuracy and temperature stability as compared to a JFET microphone.

The LMV1012 series enables a two-pin electret microphone solution, which provides direct pin-to-pin compatibility with the existing JFET market.

The devices are offered in extremely thin space saving 4-bump DSBGA packages. The LMV1012XP is designed for 1.0 mm canisters and thicker ECM canisters. These extremely miniature packages are designed for electret condenser microphones (ECM) form factor.

产品特性

Typical LMV1012-15, 2.2V Supply, RL = 2.2 k?, C = 2.2 μF, VIN = 18 mVPP, Unless Otherwise Specified
Supply Voltage: 2V - 5V
Supply Current: <180 μA
Signal to Noise Ratio (A-Weighted): 60 dB
Output Voltage Noise (A-Weighted): −89 dBV
Total Harmonic Distortion: 0.09%
Voltage Gain
- LMV1012-07: 7.8 dB
- LMV1012-15: 15.6 dB
- LMV1012-20: 20.9 dB
- LMV1012-25: 23.8 dB
Temperature Range: −40°C to 85°C
Offered in 4-Bump DSBGA Packages

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