UM95088 TelephoneCircuit

Posted on Feb 7, 2014

UM95088 telephone circuit diagram is shown in the above picture. UM95088 is specialized integrated module of dual tone multiple frequency for telephone dialing. It adopts the techniques of CMOS with dual-in-line package of 14 pins.

UM95088 TelephoneCircuit
Click here to download the full size of the above Circuit.

Dual tone multiple frequency telephone schematic circuit made of the above IC, mainly comprises power supply, key board, dialing and transmitting network, and ad-dc coupling circuit (the ring circuit is omitted in the picture) etc.

Leave Comment

characters left:

New Circuits



Popular Circuits

Ballast Control IC Design
Class-A 100W Amplifier
Infrared Audio TX/RX
Wiper speed controller
Cosimulation with Analog-RF Systems
Refrigerator Alarm Circuit
Charging capacitor bank with current limiting circuit
With TWH9248 9249 an auto lighting
Digital sound and light control stairs delay circuit switching circuit 6