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參數(shù)資料
| 型號： | MT8843AE |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | CMOS Calling Number Identification Circuit 2 Preliminary Information |
| 中文描述： | 來電號碼識別的CMOS電路2的初步信息 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大小： | 115K |
| 代理商： | MT8843AE |
5-21
Features
Compatible with British Telecom (BT) SIN227 &
SIN242, Cable Television Association (CTA)
TW/P&E/312, and Bellcore TR-NWT-000030 &
SR-TSV-002476
Ring and line reversal detection
Bellcore "CPE Alerting Signal (CAS)" and BT
"Idle State Tone Alert Signal" detection
1200 baud BELL 202 and CCITT V.23
Frequency Shift Keying (FSK) demodulation
High input sensitivity
Dual mode 3-wire data interface
Low power CMOS with powerdown mode
Input gain adjustable amplifier
Carrier detect status output
Uses 3.58 MHz crystal or ceramic resonator
Applications
BT Calling Line Identity Presentation (CLIP),
CTA CLIP, and Bellcore Calling Identity Delivery
(CID) systems
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 MT8843 Calling Number Identification Circuit 2
(CNIC2) is a low power CMOS integrated circuit
intended for receiving physical layer signals
transmitted according to BT (British Telecom)
SIN227 & SIN242, CTA (Cable TV Association) TW/
P&E/312 and Bellcore TR-NWT-000030 & SR-TSV-
002476 specifications.
The CNIC2 provides all the features and functions
offered by Mitel’s MT8841 (CNIC), including 1200
baud BELL 202 and CCITT V.23 FSK demodulation.
The 3-wire serial FSK interface provided by CNIC
has been enhanced to operate in two modes. The
first mode is the CNIC compatible mode whereby
data transfer is initiated by the device. The new,
second mode allows a microcontroller to extract 8-bit
data words from the device. Furthermore, CNIC2
offers Idle State Tone Alert Signal and line reversal
detection capability for BT’s CLIP, ring burst
detection for CTA’s CLIP, and ring detection for
Bellcore’s CID.
Figure 1 - Functional Block Diagram
+
-
Anti-alias
Filter
FSK Bandpass
Filter
FSK
Demodulator
Data Timing
Recovery
Carrier
Detector
Alert Signal High
Tone Filter
Alert Signal Low
Tone Filter
Tone
Detection
Algorithm
Bias
Generator
Oscillator
Guard
Time
StD
St/GT
ESt
TRIGout
TRIGRC
TRIGin
DATA
DR
DCLK
MODE
FSKen
CD
CAP
OSCin OSCout
IN+
IN-
GS
VRef
INT
PWDN
VDD
VSS
cct.
To internal cct.
Interrupt
Generator
ISSUE 1
February 1995
Ordering Information
MT8843AE
MT8843AS
-40 °C to +85 °C
24 Pin Plastic DIP
24 Pin SOIC
MT8843
Calling Number Identification Circuit 2
Preliminary Information
CMOS
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MT8843AS | CMOS Calling Number Identification Circuit 2 Preliminary Information |
| MT8843 | Calling Number Identification Circuit(主叫識別電路（提供各種主叫線信息傳遞設(shè)備的接口）) |
| MT8888C | Integrated DTMF Transceiver with Intel Micro Interface(雙音多頻信號（DTMF）收發(fā)器（帶Intel微接口）) |
| MT8889CC-1 | Integrated DTMFTransceiver with Adaptive Micro Interface |
| MT8889CN-1 | Integrated DTMFTransceiver with Adaptive Micro Interface |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT8843AS | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:CMOS Calling Number Identification Circuit 2 Preliminary Information |
| MT8860 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:DTMF DECODER |
| MT8860XC | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:DTMF DECODER |
| MT8860XE | 制造商:Hitachi 功能描述:DTMF RECEIVER, 18 Pin, Plastic, DIP 制造商:Microsemi Corporation 功能描述:DTMF RECEIVER, 18 Pin, Plastic, DIP 制造商:Mitel Networks Corporation 功能描述:DTMF RECEIVER, 18 Pin, Plastic, DIP |
| MT8865 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:DTMF Filter |
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