U4082B-MFLG

The U4082B-MFLG from Microchip Technology is a low-voltage voice-switched speakerphone integrated circuit. It operates within a supply voltage range of 3V to 6.5V and typically draws 5.5mA of current. This IC incorporates a wide array of functions including amplifiers, level detectors, transmit and receive attenuators, background noise monitors, a chip disable feature, a dial tone detector, and a mute function.

The device offers an attenuator gain range of 52 dB between transmit and receive operations. It is designed for improved sensitivity with four-point signal sensing and includes a monitoring system for background noise levels. The U4082B-MFLG also features an adjustable microphone amplifier gain and an on-board filter.

Packaged in a 28-SOIC surface mount configuration, this IC is suitable for hands-free operation in telecommunication applications. Its versatility is enhanced by providing access to internal circuit points, allowing for flexible integration into various designs. The component is compatible with the U4083B speaker amplifier.

Key electrical characteristics include a low-voltage operation from 3V to 6.5V and a typical current draw of 5.5mA. The attenuator gain range is specified at 52 dB. The operating temperature range is from -20°C to 60°C.