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TDA1308 Silicon Microphone Amplifier Module Silicon Microphone Amplifier Microphone Head with Pre-amplification High Sensitivity
 
 
 
Description
It adopts Knowles high-sensitivity silicon microphone pre-amplifier circuit design, with an output of about 30mw, which can directly drive ordinary 32 ohm headphones.
Board size: 18mm*15mm
Working voltage: 3v-5v DC
R5: Magnification adjustment resistor. The resistance value can be 4.7k-100k (the plug-in pad is reserved next to the chip resistor. If there is no chip resistor or the welding technology is not good, the plug-in resistor can be used.) The resistance value is higher. The higher the gain, the higher the gain.
R6: Microphone sensitivity adjustment resistance. The default is the highest sensitivity (resistance value is 0 ohms), and the resistance can be selected from 0 ohms to 10K (the plug-in pad is reserved next to the chip resistor, if there is no chip resistor or welding technology No good, plug-in resistors can be used.)
, the larger the resistance value, the lower the sensitivity.
 
Package Included
1 Pcs TDA1308 Silicon Microphone Amplifier Module
 
1005004277567108. - yikesu