1. Sensitiviry : -40 +- 30dB 2. Impedance : Max. 2.2 Kohm 3. Standard Power Supply : 2.0V DC 4. Current consumption : Max. 0.5 mA 5. Sensitivity reduction : Within-3dB at 1.5V 6. S/N radio : More than 58 dB 7. Directivity : Omnidriectional
1. Lead Wire Type : OB-27L 2. Solderless Type : OB-27S 3. Pin type : OB-27P
Other data sheets within the file : OB-27L40F, OB-27L42, OB-27L42F, OB-27L44
The device is a 3-channel audio amplifier with built-in microphone input amplifier. High quality audio output is available through simpleperipheral circuit and the amplifier gain can be adjusted flexibly by external resistor. It is widely used as pre-amplification in various stereo and 2.1-channel audio systems to pre-amplify the signal from the main chip audio.
1. BICMOS technology 2. Dual power supply (+5V/-12V) 3. Built-in voltage regulator 4. Low distortion 5. Standby function 6. Mute function and ON/OFF POP noise suppression