Clare M-88L70
The M-88L70 is a full DTMF Receiver that integrates both bandsplit filter and decoder functions into a single 18-pin DIP or SOIC package. Its filter section uses switched capacitor technology for both the high and low group filters and for dial tone rejection. Its decoder uses digital counting techniques to detect and decode all 16 DTMF tone pairs into a 4-bit code.| Part No. | M-88L70 |
|---|---|
| Datasheet | M-88L70 Download |
| Manufacturer |  Clare |
| Description | 3V DTMF Receiver |
| Buy | Stock & Price |
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 compatible with Clare’s M-8870
APPLICATIONS
● Telephone switch equipment● Mobile radio
● Remote control
● Paging systems
● PCMCIA
● Portable TAD
● Remote data entry Manufactured using CMOS process technology, the M-88L70 offers low power consumption (18 mW max), precise data handling and 3V operation. External component count is minimized by provision of an on-chip differential input amplifier, clock generator, and latched tri-state interface bus. Minimal external components required include a low-cost 3.579545 MHz color burst crystal, a timing resistor, and a timing capacitor. Figure 2 Block Diagram
DESCRIPTION
The M-88L70 monolithic DTMF receiver offers small size, low power consumption and high performance, with 3 volt operation.
