MT88E41AN ZARLINK [Zarlink Semiconductor Inc], MT88E41AN Datasheet - Page 2

• Manufacturer Part Number: MT88E41AN
• Description: CMOS Extended Voltage Calling Number Identification Circuit (ECNIC)
• Manufacturer: ZARLINK [Zarlink Semiconductor Inc]

CLASS
Features
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Applications
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SEMICMF.019
VRef
1200 baud BELL 202 and CCITT V.23 Frequency
Shift Keying (FSK) demodulation
Compatible with Bellcore GR-30-CORE and SR-
TSV-002476
High input sensitivity: -36dBm minimum FSK
Detection Level
Simple serial 3-wire data interface eliminating the
need for a UART
Power down mode
Internal gain adjustable amplifier
Carrier detect status output
Uses 3.579545 MHz crystal
2.7 - 5.5V operation
Low power CMOS technology
Calling Number Delivery (CND), Calling Name
Delivery (CNAM) and Calling Identity on Call
Waiting (CIDCW) features of Bellcore CLASS
service
Feature phones
Phone sets, adjunct boxes
FAX machines
Telephone answering machines
Database query systems
Battery powered applications
CAP
IN+
GS
IN-
SM
is a service mark of Bellcore
+
-
Generator
PWDN
Bias
Bandpass
Receive
Filter
Figure 1 - Functional Block Diagram
OSC1 OSC2
Generator
Clock
SM
Description
The MT88E41 Extended Voltage Calling Number
Identification Circuit (ECNIC) is a CMOS integrated
circuit providing an interface to various calling line
information delivery services that utilize 1200 baud
BELL 202 or CCITT V.23 FSK voiceband data
transmission schemes. The ECNIC receives and
demodulates the signal and outputs data into a simple
3-wire serial interface.
Typically,
information on the calling line is sent before alerting the
called party or during the silent interval between the first
and
recommendations or Bell 202 specifications.
The ECNIC accepts and demodulates both CCITT V.23
and BELL 202 signals. Along with serial data and clock,
the ECNIC provides a data ready signal to indicate the
reception of every 8-bit character sent from the Central
DS5717
Demodulator
FSK
Extended Voltage Calling Number
second
MT88E41AE
MT88E41AS
MT88E41AN
to other
circuits
the
Identification Circuit (ECNIC)
Detector
Carrier
ring
FSK
Ordering Information
-40 C to +85 C
CMOS
VSS
16 Pin Plastic DIP
16 Pin SOIC
20 Pin SSOP
using
Issue 3
modulated
Data and Timing
VDD IC1
Recovery
either
IC2
MT88E41
data
Data Sheet
February 1998
CCITT
containing
DATA
DR
DCLK
CD
V.23
1