Datasheet Summary
Voice Switched Speakerphone Circuit
Features
- Improved Attenuator Gain Range: 52dB Between Transmit and Receive
- Low Voltage Operation for Line-Powered Application (3.0V to 6.5V)
- 4-Point Signal Sensing for Improved Sensitivity
- Background Noise Monitors for Both Transmit and
Receive Paths
- Microphone Amplifier Gain Set by External Resistors
- Mute Function Included
- Chip Disable for Active/Standby Operation
- Dial Tone Detector to Inhibit Receive Idle Mode During
Dial Tone Presence
- Standard 28-Pin Plastic DIP Package and SOP
Package Available
- patible with MC34119 Speaker Amplifier
SOP-28 DIP-28
DESCRIPTION
The MC34118 Voice Switched Speakerphone Circuit incorporates the...
