Transcription of Low Voltage Microphone Preamplifier with Variable ...
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Low Voltage Microphone Preamplifier with Variable ...
Low Voltage Microphone Preamplifier with Variable Compression and Noise Gating Data Sheet SSM2167. FEATURES PIN CONFIGURATION. Complete Microphone conditioner in a 10-lead package GND 1 10 VDD. Single 3 V operation VCAIN 2. SSM2167 9 OUTPUT. Low shutdown current < 2 A SHUTDOWN 3 TOP VIEW. (Not to Scale). 8 COMPRESSION RATIO. BUFOUT 4 7 GATE THRS. Adjustable noise gate threshold 02628-001. INPUT 5 6 AVG CAP. Adjustable compression ratio Automatic limiting feature prevents ADC overload Figure 1. 10-Lead MSOP (RM Suffix). Low noise and distortion: THD + N. 20 kHz bandwidth LIMITING. THRESHOLD LIMITING. APPLICATIONS (ROTATION POINT) REGION.
A downward expander (noise gate) prevents amplification of background noise or hum. This results in optimized signal levels prior to digitization, thereby eliminating the need for additional gain or attenuation in the digital domain. The flexibility of setting the compression ratio
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