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參數(shù)資料
| 型號： | MT8979AP |
| 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)： | 18/26頁 |
| 文件大?。?/td> | 340K |
| 代理商： | MT8979AP |
MT8979
ISO-CMOS
4-178
Receiver
The receive line interface circuit shown in Figure 15
will decode the HDB3 line signals into two split
phase unipolar steering signals. These signals
are used to drive the violation detectors RxA and
RxB as well as being NAND‘ed to produce the
received data (RxD).
The NAND gate was removed from the devices to
make the delay for the data path equal to the delay
of the clock path. This will optimize the jitter
performance of the receiver.
The typical connection diagram for the CEPT digital
trunk interface is provided in Figure 16. The
bipolar line driver and receiver have been simplified
for convenience as well as the addition of a clock
extractor and phase-lock loop. The clock extractor is
required to adjust the phase of the E2 clock in order
to sample the received data in the middle of the
pulse on RxD. The phase-lock loop, on the other
hand, will correct the system clocks to absorb the
low rate wander present on the line.
Please note:
The configuration shown in Figure 16
using the MT8940 may not meet some international
standards for jitter performance. In cases where
strict idle jitter specifications must be met, a custom
phase-lock loop may be required.
Figure 15 - Typical Bipolar Line Receiver
Figure 16 - Typical Connection Diagram
RxT
RxR
RxA
RxD
RxB
MT8979
1:
:1
:1
+5V
+5V
74LS00
MT8979
DSTi
DSTo
CSTo0
CSTi1
CSTo
F0i
C2i
E8Ko
TxMF
TxA
TxB
RxA
RxD
RxB
Line
Driver
Line
Receiver
Clock
Extractor
16.388
Crystal
MT8980
STo0
STi0
STo1
STo2
STi1
F0i
C4i
μ
P
MT8940
C4b
F0b
V
DD
V
DD
E2i
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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 |
| MT8980DE | ISO-CMOS ST-BUS⑩ FAMILY Digital Switch |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)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 |
| MT8980 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ISO-CMOS ST-BUS⑩ FAMILY Digital Switch |
| MT8980D | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:ISO-CMOS ST-BUS Family Digital Switch |
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