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參數(shù)資料
| 型號： | MT8979AE |
| 廠商： | Mitel Networks Corporation |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| 中文描述： | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| 文件頁數(shù)： | 1/26頁 |
| 文件大小： | 340K |
| 代理商： | MT8979AE |
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4-161
Features
Single chip primary rate 2048 kbit/s CEPT
transceiver with CRC-4 option
Meets CCITT Recommendation G.704
Selectable HDB3 or AMI line code
Tx and Rx frame and multiframe
synchronization signals
Two frame elastic buffer with 32
μ
sec jitter
buffer
Frame alignment and CRC error counters
Insertion and detection of A, B, C, D signalling
bits with optional debounce
On-chip attenuation ROM with option for ADI
codecs
Per channel, overall and remote loop around
ST-BUS compatible
Applications
Primary rate ISDN network nodes
Multiplexing equipment
Private network: PBX to PBX links
High speed computer to computer links
Description
The MT8979 is a single chip CEPT digital trunk
transceiver that meets the requirements of CCITT
Recommendation
G.704
equipment.
for
digital
multiplex
The MT8979 is fabricated in Mitel’s low power
ISO-CMOS technology.
Figure 1 - Functional Block Diagram
V
DD
RxD
RxA
RxB
TxA
TxB
E2i
E8Ko
V
SS
CEPT
Link
Interface
Digital
Attenuator
ROM
ST-BUS
Timing
Circuitry
PCM/Data
Interface
Serial
Control
Interface
ABCD Bit RAM
Control Logic
Phase
Detector
CEPT
Counter
TxMF
C2i
F0i
RxMF
DSTi
DSTo
ADI
CSTi0
CSTi1
CSTo
XCtl
XSt
Remote
&
Digital
Loop-
backs
2 Frame
Elastic Buffer
with Slip
Control
Ordering Information
MT8979AC
MT8979AE
MT8979AP
-40
°
to 85
°
C
28 Pin Ceramic DIP
28 Pin Plastic DIP
44 Pin PLCC
ISSUE 7
May 1995
MT8979
CEPT PCM 30/CRC-4 Framer & Interface
ISO-CMOS ST-BUS
FAMILY
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MT8979AP | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| MT8979AC | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| MT8980D | Digital Switch(數(shù)字開關(guān)（在微處理器控制下，轉(zhuǎn)換PCM編碼控制的話音或數(shù)據(jù)）) |
| MT8980 | ISO-CMOS ST-BUS⑩ FAMILY Digital Switch |
| MT8980D-1 | ISO-CMOS ST-BUS⑩ FAMILY Digital Switch |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT8979AE1 | 制造商:Microsemi Corporation 功能描述:FRAMER CRC-4/PCM 30 5V 28PDIP - Rail/Tube 制造商:Zarlink Semiconductor Inc 功能描述:FRAMER CRC-4/PCM 30 5V 28PDIP - Rail/Tube |
| MT8979AP | 制造商:MITEL 功能描述: |
| MT8979AP1 | 制造商:Microsemi Corporation 功能描述:FRAMER CRC-4/PCM 30 5V 44PLCC - Rail/Tube 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC FRAMER/INTERFACE CEPT 44PLCC 制造商:Microsemi Corporation 功能描述:IC FRAMER/INTERFACE CEPT 44PLCC |
| MT8979APR | 制造商:Microsemi Corporation 功能描述: |
| MT8979APR1 | 制造商:Microsemi Corporation 功能描述:FRAMER CRC-4/PCM 30 5V 44PLCC - Tape and Reel 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC FRAMER/INTERFACE CEPT 44PLCC 制造商:Microsemi Corporation 功能描述:IC FRAMER/INTERFACE CEPT 44PLCC |
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