Datasheet Texas Instruments LMV1088 — 数据表

LMV1088
www.ti.com SNAS385J – SEPTEMBER 2007 – REVISED APRIL 2013 LMV1088 Dual Input, Far Field Noise Suppression Microphone Amplifier with Automatic
Calibration Ability
Check for Samples: LMV1088 FEATURES DESCRIPTION The LMV1088 amplifies near-field voice signals within
4cm of the microphones while rejecting far-field
acoustic noise greater than 0.5m from the
microphones. Up to 20dB of far-field rejection is
possible in a properly configured and calibrated
system. 1 2 Low Power Consumption
No Added Processing Delay
Automatic Calibration
Space-Saving 36 Bump DSBGA Package
Up to 20dB SNRI APPLICATIONS Mobile Handsets
Mobile and Handheld Two-Way Radios
Bluetooth and Other Powered Headsets
Hand-Held Voice Microphones
Portable Public Address Systems KEY SPECIFICATIONS (3.3V Supply, Unless Otherwise Specified)
Supply Voltage 2.7V to 5.5 V
Supply Current 1mA (typ)
Signal to Noise Ratio (A-Weighted) 60 dB (typ)
Total Harmonic Distortion 0.1% (typ)
Noise Cancellation 20 dB (typ)
PSRR 85 dB (typ) Part of the PowerwiseВ® family of energy efficient …