MT88E45 Datasheet, PDF (1/30 Pages) Mitel Networks Corporation – 4-Wire Calling Number Identification Circuit 2(4-Wire CNIC2)

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
• 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
August 2005
Ordering Information
MT88E45BN 20 Pin SSOP Tubes
MT88E45BS 20 Pin SOIC Tubes
MT88E45BSR 20 Pin SOIC Tape & Reel
MT88EBNR
20 Pin SSOP Tape & Reel
MT88E45BN1 20 Pin SSOP* Tubes
MT88E45BNR1 20 Pin SSOP* Tape & Reel
*Pb Free Matte Tin
-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
IN1+
IN1-
GS1
IN2+
IN2-
GS2
V_REF
FSKen+Tip/Ring CASen
+
-
PWDN
Anti-Alias
Filter
PWDN
PWDN
+
-
Hybrid CASen
Bias
Generator
MODE
PWDN
FSKen
CASen
PWDN
Oscillator
Control Bit
Decode
FSK
Bandpass
FSKen
CASen
2130Hz
Bandpass
2750Hz
Bandpass
CASen
FSK
Demodulator
MODE
Data Timing
Recovery
Carrier
Detector
Tone
Detection
Algorithm
DR
STD
Guard
Time
OSC1 OSC2 CB0 CB1 CB2
Figure 1 - Functional Block Diagram
1
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Copyright 2001-2005, Zarlink Semiconductor Inc. All Rights Reserved.
DATA
DCLK
CD
DR/STD
ST/GT
EST
Vdd
Vss