MT88E43B Datasheet, PDF (1/29 Pages) Zarlink Semiconductor Inc – Extended Voltage Calling Number Identification Circuit 2

CMOS MT88E43B
Extended Voltage Calling Number
Identification Circuit 2
Data Sheet
Features
• Compatible with:
• British Telecom (BT) SIN227 & SIN242
• U.K.’s Cable Communications Association
(CCA) specification TW/P&E/312
• Bellcore GR-30-CORE (formerly known as
TR-NWT-000030) & SR-TSV-002476
• Bellcore "CPE Alerting Signal (CAS)" and BT
"Idle State Tone Alert Signal" detection
• Ring and line reversal detection
• 1200 baud Bell 202 and CCITT V.23 Frequency
Shift Keying (FSK) demodulation
• 3 or 5 V ±10% supply voltage
• High input sensitivity (-40 dBV Tone and FSK
Detection)
• Selectable 3-wire data interface (microcontroller
or MT88E43 controlled)
• Low power CMOS with powerdown mode
• Input gain adjustable amplifier
• Carrier detect status output
• Uses 3.58 MHz crystal
Applications
• BT Calling Line Identity Presentation (CLIP), CCA
CLIP, and Bellcore Calling Identity Delivery (CID)
systems
April 2006
Ordering Information
MT88E43BE 24 Pin PDIP
MT88E43BS 24 Pin SOIC
MT88E43BSR 24 Pin SOIC
MT88E43BS1 24 Pin SOIC*
MT88E43BSR1 24 Pin SOIC*
Tubes
Tubes
Tape & Reel
Tubes
Tape & Reel
*Pb Free Matte Tin
-40°C to +85°C
• Feature phones, including Analog Display
Services Interface (ADSI) phones
• Phone set adjunct boxes
• FAX and answering machines
• Database query and Computer Telephony
Integration (CTI) systems
Description
The MT88E43 Calling Number Identification Circuit 2
(ECNIC2) is a low power CMOS integrated circuit
intended for receiving physical layer signals
transmitted according to BT (British Telecom) SIN227
& SIN242, the U.K.’s CCA (Cable Communications
Association) TW/P&E/312 and Bellcore GR-30-CORE
& SR-TSV-002476 specifications. The MT88E43 is
suitable for applications using a fixed voltage power
source between 3 and 5 V ±10%.
FSKen MODE
IN+
IN-
GS
VRef
CAP
PWDN
+
Anti-alias
FSK Bandpass
FSK
Data Timing
-
Filter
Filter
Demodulator
Recovery
To internal
cct.
Bias
Generator
To internal cct.
Oscillator
Alert Signal High
Tone Filter
Alert Signal Low
Tone Filter
Carrier
Detector
Tone
Detection
Algorithm
Interrupt
Generator
Guard
Time
DCLK
DATA
DR
CD
INT
StD
St/GT
ESt
VDD
VSS
OSCin OSCout TRIGin TRIGRC
TRIGout
Figure 1 - Functional Block Diagram
1
Zarlink Semiconductor Inc.
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Copyright 1997-2006, Zarlink Semiconductor Inc. All Rights Reserved.