ICs
CD22859E
- Integrated DTMF Tone Generator: Generates standard dual-tone dialing signals for telephone and communication systems.
- Built-in Oscillator: Uses a 3.579545MHz TV crystal for high-accuracy and stable tone generation.
- Mute Control Logic: Includes TX and RX mute outputs, capable of controlling external transmitter and receiver muting transistors.
- Direct Interface with Telephone Keypads: Supports K500-type push-button telephone keyboards.
- Low Power Consumption: Operates efficiently on regulated DC or telephone loop current.
- DIP-16 Package for Easy Integration: Through-hole mounting for quick PCB prototyping and production use.
