Microchip MT88L70AN1

DTMF-приемник2,7 В ~ 3,6 В

Overview

The MT88L70AN1 is a complete 3 Volt, DTMF receiver integrating both the bandsplit filter and digital decoder functions. The filter section uses switched capacitor techniques for high and low group filters; the decoder uses digital counting techniques to detect and decode all 16 DTMF tone-pairs into a 4-bit code. External component count is minimized by on chip provision of a differential input amplifier, clock oscillator and latched three-state bus interface.Typical ApplicationsPaging systemsRepeater systems/mobile radioCredit card systemsRemote controlPersonal computersTelephone answering machine

Features

Tube Package
Available in the 20-SSOP (0.209, 5.30mm Width) package
DTMF SIGNALING CIRCUIT as telecom IC type
Operating supply voltage of 3V
Operating supply current of 2mA
Operating with the requency of 3.58MHz

Surface Mount Mounting Type

Applications

There are a lot of Microchip Technology
MT88L70AN1 Telecom applications.

• Switches
• LAN Routers
• Digital Modems
• SONET/SDH terminal
• Add/Drop multiplexers (ADMs)
• T1/E1/J1 add/drop multiplexers (MUX)
• Channel Service Units (CSUs): T1/E1/J1
• Fractional T1/E1/J1
• BITS Timing
• Digital Access Cross-connect System (DACs)