SL34118 Description
INTRODUCTION The fundamental difference between the operation of a speakerphone and a handset is that of halfduplex versus full-duplex. The handset is full duplex since conversation can occur in both directions (transmit and receive) simultaneousiy. A speakerphone has higher gain levels in both paths, and attempting to converse full duplex results in oscillatory problems due to the loop that exists within the system.
SL34118 Key Features
- Improved Attenuator Gain Range: 52 dB Between Transmit and Receive Low Voltage Operation for Line-Powered
SL34118 Applications
- Mute Function Included Chip Disable for Active Standby Operation On Board Filter Pinned-Out for User Deined Function Dial Tone Detector to Inhibit Receive Idle
- i.e., only one person speaks at a time, while the other listens. To achieve this requires a circuit which can detect who is talking, switch on the appropriate p