OB-27P40 Datasheet – Electret Condenser Microphone

Part Number : OB-27P40, OB-27

Function :  (6.0 x 2.7) Omnidirection Back Electret Condenser Microphone

Package : PCB 2 Pin Type

Manufacturers : http://www.ringford.com

Image :

OB-27P40 Image

 

Description :

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

Model Informations

1. Lead Wire Type : OB-27L
2. Solderless Type : OB-27S
3. Pin type : OB-27P

 

OB-27P40 Datasheet

Other data sheets within the file : OB-27L40F, OB-27L42, OB-27L42F, OB-27L44

OB-27P40 Datasheet PDF Download

OB-27P40 pdf

HD0802A Datasheet – ALC Band Amplified Microphone Output

Part Number : HD0802A

Function : ALC Band Amplified Microphone Output, 3Ch Audio Amplifier

Package : SMD 16PIN

Manufacturers : Wuxi YouDa Electronics

Images :
HD0802A amplifier

Description :

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.

Block Diagram

HD0802A Pinouts

Features

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

 

Applications

1. CD / VCD / DVD
2. Other audio systems

HD0802A datasheet

HD0802A Datasheet PDF Download

HD0802A pdf