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參數(shù)資料
| 型號(hào)： | MT90870 |
| 廠商： | Zarlink Semiconductor Inc. |
| 英文描述： | Flexible 12 k Digital Switch (F12kDX) |
| 中文描述： | 靈活的12畝數(shù)字交換機(jī)（F12kDX） |
| 文件頁數(shù)： | 18/86頁 |
| 文件大?。?/td> | 2093K |
| 代理商： | MT90870 |
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MT90870
Data Sheet
18
Zarlink Semiconductor Inc.
1.0 Bidirectional and Unidirectional Applications
The MT90870 has a maximum capacity of 12,288 input channels and 12,288 output channels. This is calculated
from the maximum number of streams and channels: 48 input streams (32 Backplane, 16 Local) at 16.384 Mb/s
and 48 output streams (32 Backplane, 16 Local) at 16.384 Mb/s.
One typical mode of operation is to separate the Backplane and Local sides, as shown in Figure 3 below.
Figure 3 - 8,192 x 4,096 Channels (16 Mb/s), Bidirectional Switching
In this system setup, the chip has a capacity of 8,192 input channels and 8,192 output channels on the Backplane
side as well as 4,096 input channels and 4,096 output channels on the Local side. Note that some of the output
channels on one side can come from the other side, i.e., Backplane input to Local output switching.
Often a system design does not need to differentiate between Backplane and Local side, and merely needs
maximum switching capacity. In this case, the MT90870 can be used as shown in Figure 4 to give the full 12,288 x
12,288 channel capacity.
Figure 4 - 12,288 x 12,288 Channels (16 Mb/s), Unidirectional Switching
In this system, the Backplane and Local inputs and outputs are combined and the switch appears as a 48 stream
input by 48 stream output switch. This style of operation is similar to older switch designs, such as the MT90826.
Note, in either configuration the Backplane may be operated in the 32 Mb/s Mode, providing 512 channels on each
of the 16 available input and output streams (BSTi0-15 and BSTo0-15) operating at a data-rate of 32.768 Mb/s, in
conjunction with the Local streams (LSTi0-15 and LSTo0-15) operated at 16.384 Mb/s. This allows data-rate
conversion between 32.768 Mb/s and 16.384 Mb/s without loss to the switching capacity.
MT90870
32 streams
32 streams
16 streams
16 streams
BSTi0-31
BSTo0-31
LSTo0-15
LSTi0-15
BACKPLANE
LOCAL
MT90870
32 streams
16 streams
32 streams
16 streams
BSTi0-31
LSTi0-15
BSTo0-31
LSTo0-15
INPUT
OUTPUT
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MT90871AV | Flexible 8K Digital Switch (F8KDX) |
| MT90871 | Flexible 8K Digital Switch (F8KDX) |
| MT90883 | TDM to Packet Processors |
| MT91600 | Programmable SLIC |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT90870AG | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 12K X 12K/8K X 4K 1.8V/3.3V 272BGA - Trays |
| MT90870AG2 | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 12K X 12K/8K X 4K 1.8V/3.3V 272BGA - Trays |
| MT90871 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Flexible 8K Digital Switch (F8KDX) |
| MT90871AV | 制造商:Microsemi Corporation 功能描述:FLEXIBLE 8K DIGITAL SWITCH 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC DGTL SWITCH F8KDX 196PBGA 制造商:Microsemi Corporation 功能描述:IC DGTL SWITCH F8KDX 196PBGA |
| MT90871AV2 | 制造商:Microsemi Corporation 功能描述:PB FREE FLEXIBLE 8K DIGITAL SWITCH - Bulk 制造商:Microsemi Corporation 功能描述:IC, TDM SWITCH 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC DGTL SWITCH F8KDX 196PBGA 制造商:Microsemi Corporation 功能描述:IC DGTL SWITCH F8KDX 196PBGA |
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