MT8880CSR

Manufacturer Part NumberMT8880CSR
ManufacturerZarlink Semiconductor
MT8880CSR datasheet
 


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Features
Complete DTMF transmitter/receiver
Central office quality
Low power consumption
Microprocessor port
Adjustable guard time
Automatic tone burst mode
Call progress mode
Applications
Credit card systems
Paging systems
Repeater systems/mobile radio
Interconnect dialers
Personal computers
Description
The MT8880C is a monolithic DTMF transceiver with
call progress filter. It is fabricated in Zarlink
2
Semiconductor’s
ISO
-CMOS
technology,
D/A
TONE
Converters
Tone Burst
Control
Gating Cct.
Logic
IN+
+
Dial
Tone
-
High Group
IN-
Filter
Filter
GS
Low Group
OSC1
Filter
Oscillator
Circuit
OSC2
Control
Bias
Circuit
V
V
V
DD
Ref
SS
Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.
Copyright 2001-2005, Zarlink Semiconductor Inc. All Rights Reserved.
Integrated DTMF Transceiver
MT8880CE
MT8880CS
MT8880CN
MT8880CP
MT8880CP1
MT8880CS1
MT8880CE1
MT8880CN1
MT8880CSR
MT8880CPR
MT8880CPR1
MT8880CSR1
provides low power dissipation and high reliability. The
DTMF receiver is based upon the industry standard
MT8870 monolithic DTMF receiver; the transmitter
utilizes a switched capacitor D/A converter for low
distortion, high accuracy DTMF signalling. Internal
counters provide a burst mode such that tone bursts
can be transmitted with precise timing. A call progress
filter can be selected allowing a microprocessor to
analyze
call
microprocessor bus is provided and is directly
compatible with 6800 series microprocessors.
which
Row and
Transmit Data
Column
Register
Counters
Status
Register
Control
Register
A
Digital
Algorithm
and Code
Control
Converter
Register
B
Receive Data
Steering
Logic
Register
Logic
ESt
St/GT
Figure 1 - Functional Block Diagram
1
Zarlink Semiconductor Inc.
2
MT8880C
ISO
- CMOS
Data Sheet
September 2005
Ordering Information
20 Pin PDIP
Tubes
20 Pin SOIC
Tubes
24 Pin SSOP
Tubes
28 Pin PLCC
Tubes
28 Pin PLCC*
Tubes
20 Pin SOIC*
Tubes
20 Pin PDIP*
Tubes
24 Pin SSOP*
Tubes
20 Pin SOIC
Tape & Reel
28 Pin PLCC
Tape & Reel
28 Pin PLCC*
Tape & Reel
20 Pin SOIC*
Tape & Reel
*Pb Free Matte Tin
-40°C to +85°C
progress
tones.
A
standard
D0
Data
Bus
D1
Buffer
D2
D3
Interrupt
Logic
IRQ/CP
Φ2
I/O
CS
Control
R/W
RS0

MT8880CSR Summary of contents