Mfr Part #:

MT8870DSR1

The MT8870DSR1 is a complete DTMF receiver from Zarlink Semiconductor Inc. It integrates bandsplit filter and digital decoder functions.

✓ Total Stock: 23 pcs

$ Price Range: $0.99

MT8870DSR1 Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Speed Components Ltd ✓ Non-Authorised Inventory information	23 pcs On Request	23 pcs	On Request	1	On Request	On Request	06+26	On Request	On Request

MT8870DSR1 Specifications Quick View

Most important parameters for selection – full specs in datasheet.

SELECT ALL

Category	New Products
Manufacturer Name	Zarlink Semiconductor Inc
Lead Spacing	1.27 mm
Lead Style	Gull-Wing
Mounting Type	Surface Mount
Operating Temperature	-40°C to +85°C
Tape & Reel	Yes

View Similar Products (0)

MT8870DSR1 Description

Short technical summary and product information.

The MT8870DSR1 by Zarlink Semiconductor Inc. is a comprehensive DTMF receiver that combines both bandsplit filter and digital decoder functionalities. Utilizing switched capacitor techniques for its high and low group filters, and digital counting techniques for decoding, it can detect and decode all 16 DTMF tone-pairs into a 4-bit code.

This component offers low power consumption and features an internal gain setting amplifier with an adjustable guard time. It is designed for central office quality applications and includes power-down and inhibit modes. The device operates within a temperature range of -40°C to +85°C and is available in an 18-pin SOIC package suitable for surface mounting.

Key features include backward compatibility with MT8870C/MT8870C-1, making it a versatile choice for system upgrades. Its design minimizes external component count through on-chip provision of a differential input amplifier, clock oscillator, and latched three-state bus interface.

MT8870DSR1 Quick Information

Product Type: Integrated DTMF Receiver

Series: MT8870

Canonical Name: MT8870DSR1 Integrated DTMF Receiver

Subcategory: Telecom ICs

MT8870DSR1 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

MT8870DSR1 Estimated Pricing

Qty	Low	High
1+	$0.99	$0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

MT8870DSR1 Features

Complete DTMF receiver with filter and decoder.
Low power consumption for efficiency.
Adjustable guard time feature included.
Operates from -40°C to +85°C.
Surface mountable SOIC package.

MT8870DSR1 Applications

Used in paging systems.
Suitable for repeater systems.
Applicable in credit card systems.
Can be used for remote control.
Designed for telephone answering machines.

MT8870DSR1 FAQs

4 frequently asked questions generated from this part’s specifications.

What is the operating temperature range of the MT8870DSR1?

-40°C to +85°C.

What package is the MT8870DSR1 available in?

SOIC.

What is the mounting type for the MT8870DSR1?

Surface Mount.

Is tape and reel packaging available for the MT8870DSR1?

Yes.

MT8870DSR1 Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.

View All Alternate Parts

ADM3491AR-REEL

Analog Devices / Maxim Integrated

The Analog Devices ADM3491AR-REEL is a 3.3V, full-duplex, 10Mbps RS-485 transceiver. It is designed for low-power applications and operates over an industrial temperature range.

View Part

INA133UA

Texas Instruments

The Texas Instruments INA133UA is a precision difference amplifier offering a 1.5MHz bandwidth and low offset voltage. It operates over a wide supply range and is available in an SOIC-8 package.