We want to hear from you
Help us improve your experience on our site. We invite you to take our five-question survey.
Sign in for a personalized NXP experience.
The MC145446A has been discontinued. Suggested replacement: none.
The MC145446A is a silicon gate CMOS frequency shift keying (FSK) modem intended for use with telemeter systems or remote control systems over the telephone network. It replaces the MC145446. This device is compatible with CCITT V.21 and contains the entire circuit that provides a full-duplex or half-duplex 300-baud data communication over a pair of telephone lines. This device also includes the DTMF generator/receiver and call progress tone detector (CPTD).
The differential line driver has the capability of driving 0 dBm into a 600 ohm load with a single 5 V power supply. The transmit level is controlled by the programmable attenuator in 1 dB steps.
This device also includes a serial control interface and internal control and status registers that permit a CPU to exercise its built-in features.
Quick reference to our documentation types.
1 document
There are no results for this selection.
Please wait while your secure files are loading.
1 documents
There are no recently viewed products to display.
Help us improve your experience on our site. We invite you to take our five-question survey.