AN6425 Description
AN6425K Speech Network Circuit s Overview The AN6425K is a high-function speech network IC with speaker amplifier. It incorporates a transmitter-system non-linear circuit, receiver digital VRs, etc. and is suitable for realizing the multifunctional telephone sets.
AN6425 Key Features
- Speech network IC for the multifunctional telephone sets
- Capable of interfacing with the light-weight small receivers
- Built-in 2V REG constant voltage source (2V typ) for ECM
- Built-in non-linear circuits in the transmitter and receiver
- Built-in speaker amplifier and capable of driving with a main
- Built-in hold-tone amplifier, key-in-tone amplifier, and
- Automatic gain control (automatic pad function) according to a circuit curret
- Built-in tertiary active filter circuit and capable of sending a DTMF circuit with much higher harmonic at a low distort
- Built-in single touch receiver volume-up function (about 6dB)
- D5dB D3dB D6dB REC in DVR