Datasheet Texas Instruments LMV1099TL/NOPB — 数据表

LMV1099
www.ti.com SNAS490D – JULY 2010 – REVISED MAY 2013 LMV1099 Uplink Far Field Noise Suppression and Downlink SNR Enhancing Microphone
Amplifier with Earpiece Driver
Check for Samples: LMV1099 FEATURES DESCRIPTION The LMV1099 is an uplink and downlink voice
intelligibility enhancing analog IC, ideally suited for
mobile handsets. Uplink voice intelligibility is
improved by rejecting far-field noise through a unique
two-microphone solution. Downlink voice intelligibility
is improved by enhancing the SNR (Signal-to-Noise
Ratio) between the downlink voice and the ambient
noise environment at the user’s earpiece. 1 2 Noise Reduction Without DSP-Type Artifacts
Adapting AGC (Automatic Gain Control) on
Ambient Noise Level and Downlink Signal
Strength
Downlink Adjustable Noise-reducing High
Pass Filter
Separate Uplink and Downlink Enable
Functions
No Added Process Delays
Low Power Consumption
Shutdown Function
Maximum AGC Limiter
Differential Inputs and Outputs for Noise …