MT3370B - Wide Dynamic Range DTMF Receiver

Zarlink Semiconductor

MT3370B Datasheet Preview — Preview of MT3370B PDF

Datasheet Details

Part number	MT3370B
Manufacturer	Zarlink Semiconductor
File Size	558.76 KB
Description	Wide Dynamic Range DTMF Receiver
Datasheet	MT3370B_ZarlinkSemiconductor.pdf

MT3370B Product details

Description

Data Sheet The MT3x7xB is a family of high performance DTMF receivers which decode all 16 tone pairs into a 4-bit binary code.These devices incorporate an AGC for wide dynamic range and are suitable for end-to-end signalling.The MT3x70B provides an early steering (ESt) logic output to indicate the detection of a DTMF signal and requires external software guard time to validate the DTMF digit.The MT3x71B, with preset internal guard times, uses a delay steering (DStD) logic output to indicate

Features

Wide dynamic range (50 dB) DTMF Receiver Call progress (CP) detection via cadence indication 4-bit synchronous serial data output Software controlled guard time for MT3x70B Internal guard time circuitry for MT3x71B Powerdown option (MT317xB & MT337xB) 4.194304 MHz crystal or ceramic resonator (MT337xB and MT327xB) External clock input (MT317xB) Guarantees non-detection of spurious tones Ordering Information.

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MT3270B - Wide Dynamic Range DTMF Receiver

Published: May 14, 2010 |