M-88L70 Overview
The M-88L70 monolithic DTMF receiver offers small size, low power consumption and high performance, with 3 volt operation. Its architecture consists of a bandsplit filter section, which separates the high and low group tones, followed by a digital counting section which verifies the frequency and duration of the received tones before passing the corresponding code to the output bus. 1 M-88L70 Filter The low and high...
M-88L70 Key Features
- Operates between 2.7 and 3.6 volts
- Low power consumption
- Power-down mode
- Inhibit mode
- Central office quality and performance
- Inexpensive 3.58 MHz time base
- Adjustable acquisition and release times
- Dial tone suppression
- Functionally patible with Clare’s M-8870