MT88E45
4-Wire Calling Number Identification
Circuit 2 (4-Wire CNIC2)
Data Sheet
Features
•
Compatible with:
•
•
•
•
Bellcore GR-30-CORE, SR-TSV-002476,
ANSI/TIA/EIA-716, TIA/EIA-777;
ETSI ETS 300 778-1 (FSK only variant) & -2;
BT (British Telecom) SIN227 & SIN242
Ordering Information
MT88E45BN
MT88E45BS
MT88E45BSR
MT88EBNR
MT88E45BN1
MT88E45BNR1
*Pb
20 Pin SSOP
20 Pin SOIC
20 Pin SOIC
20 Pin SSOP
20 Pin SSOP*
20 Pin SSOP*
Free Matte Tin
Tubes
Tubes
Tape & Reel
Tape & Reel
Tubes
Tape & Reel
August 2005
Bellcore ‘CPE Alerting Signal’ (CAS), ETSI ‘Dual
Tone Alerting Signal’ (DT-AS), BT Idle State and
Loop State ‘Tone Alert Signal’ detection
1200 baud Bell 202 and CCITT V.23 FSK
demodulation
Separate differential input amplifiers with
adjustable gain for Tip/Ring and telephone hybrid
or speech IC connections
Selectable 3-wire FSK data interface (bit stream
or 1 byte buffer)
Facility to monitor the stop bit for framing error
check
FSK Carrier detect status output
3 to 5V +/- 10% supply voltage
Uses 3.579545 MHz crystal or ceramic resonator
Low power CMOS with power down
•
•
-40°C to +85°C
•
•
Applications
•
Bellcore CID (Calling Identity Delivery) and
CIDCW (Calling Identity Delivery on Call Waiting)
telephones and adjuncts
ETSI, BT CLIP (Calling Line Identity Presentation)
and CLIP with Call Waiting telephones and
adjuncts
Fax and answering machines
Computer Telephony Integration (CTI) systems
•
•
•
•
•
•
•
FSKen+Tip/Ring CASen
IN1+
IN1-
GS1
IN2+
IN2-
GS2
V
REF
Bias
Generator
PWDN
Oscillator
+
-
Hybrid CASen
MODE
FSKen
PWDN
CASen
MODE
FSK
Bandpass
FSKen
CASen
2130Hz
Bandpass
2750Hz
Bandpass
Mux
Carrier
Detector
DR
STD
Tone
Detection
Algorithm
Guard
Time
FSK
Demodulator
Data Timing
Recovery
DATA
DCLK
CD
DR/STD
+
-
PWDN
PWDN
Anti-Alias
Filter
PWDN
ST/GT
EST
Vdd
Vss
Control Bit
Decode
CASen
CB0 CB1 CB2
OSC1
OSC2
Figure 1 - Functional Block Diagram
1
Zarlink Semiconductor Inc.
Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.
Copyright 2001-2005, Zarlink Semiconductor Inc. All Rights Reserved.
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
