DESCRIPTION:
BL1110A
BL1110A(BL1001) is a low voltage versatile transmission IC.
It offers the entire microphone, receive and line interface functions required in telephone sets.
It performs the interface between the line and the transducers of the handset.
It includes a DTMF amplifier, a microphone amplifier and a receive amplifier.
The selection between the microphone amplifier and the DTMF amplifier is made with a “MUTE” function.
The MUTE/input switches-off both the microphone and the receive amplifiers and switches-on the DTMF amplifier.
FEATURES
• Low DC line voltage: operates down to 1.
6 V • Voltage
regulator with adjustable DC voltage • Provides a supply for external circuits • Sy...