TDA1308 hangszedő erősítő lemez szilícium mikrofon digitális mikrofon erősítő modul hallókészülék konferencia mikrofon
TDA1308 pickup amplifier plate silicon microphone digital microphone amplifier module hearing aid conference microphone
R5 is the gain 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, you can use the plug-in resistor.), the larger the resistance , The higher the gain.
Basic parameters:
Working voltage: DC 3v-6v
Board size: 16mm*15mm
Default gain: 40db (you can also adjust the gain as needed, just change the resistance of R5)
1005001699380365 - blackh