KL34018 Overview
Description
The KL34018 speaker-phone integrated circuit incorporates the necessary functions to produce a high quality hands-free speaker-phone system. The applications include household and office speaker-phones, intercom systems, hand free kit for mobile phones, and others.
Key Features
- All necessary level detection and attenuation controls for a hand-free telephone included
- Background noise level monitoring with long time constant
- Background sound level compensation for transmit and receive levels as well as the background level
- Wide operating dynamic range through signal compression
- On-chip voltage regulators illuminate external regulators for lining operation
- Power audio amplifier for typical 100mW output (into 25 ohms)with peak limiting for speaker to minimize distortion
- Chip Select pin for active/stand by operation
- Volume control function for external volume control
- Standard 28-pin plastic DIP and SOP package
