LMV1091TM

• No loss of speech intelligibility
• Low power consumption
• Shutdown function
• No processing delays are added
• Differential output
• Adjustable 12 - 54 dB gain
• Excellent RF anti-interference
• Available in a 25-bump micro SMD package

illustrate

LMV1091 is a fully analog dual differential input, differential output, microphone array amplifier design to reduce background noise for applications in voice communication while providing superior speech clarity.

LMV1091 retain the microphone 4 cm of near-field voice signal while rejecting microphones with far-field noise of more than 50 cm. Far-field rejection of up to 20dB is possible to match micropohones in a ± of 0.5 dB with proper configuration and use.

The PowerWise™ Energy Saving Solution is part of the family, LMV1091 DSP solutions that consume only 600μA of supply current and consume more than 10 times the power to deliver superior performance.

Dual microphone inputs and processed signal outputs to provide superior immunity to poor interference. The microphones of the internal low-noise bias power supply are biased.

Key specifications:

* FFNS E at f = 1kHz

apply

• Mobile phone headphones
• Mobile and handheld two-way radios
• Bluetooth and other powered headphones
• Handheld voice microphone