參數(shù)資料
型號(hào)： MAX4670
廠商： Maxim Integrated Products, Inc.
英文描述： Integrated T1/E1/J1 Short-Haul and Long-Haul Protection Switch
中文描述： 集成T1/E1/J1短程、長(zhǎng)程保護(hù)開(kāi)關(guān)
文件頁(yè)數(shù)： 9/20頁(yè)
文件大?。?/td> 1136K
代理商： MAX4670
In a switching-card architecture, a common switching
card contains all the protection switches for the T1/E1/J1
lines entering the system (see Figures 7 and 8).
With an adjacent card architecture, the switches pro-
tecting any given line card reside physically in the adja-
cent line card (see Figures 9 and 10).
Receive and transmit interfaces reside in the same
board for each T1/E1/J1 port. The diagrams represent
the typical interface transformers and resistors recom-
mended for Dallas/Maxim LIUs, such as the DS21Q55.
The protection switches are placed in the low-voltage
side of the transformer to meet the isolation require-
ments. Note that there is also a TVS in the line side of
the transformers. The receive and transmit resistors pro-
vide impedance matching to the T1/E1/J1 transmission
cable characteristic impedance. Refer to Application
Note 2857 for more information on T1/E1/J1 applications.
M
Integrated T1/E1/J1 Short-Haul and
Long-Haul Protection Switch
_______________________________________________________________________________________
9
MAX4670
NO1
R
X
NC1
COM1
NO2
R
X
NC2
COM2
INA
INB
INC
IND
NO3
T
X
NC3
COM3
NO4
T
X
NC4
COM4
NO5
T
X
NC5
COM5
NO6
T
X
NC6
COM6
NO7
R
X
NC7
COM7
NO8
R
X
NC8
COM8
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
V+
GND
SWITCH
INA
X
LOW
HIGH
INB
X
LOW
HIGH
INC
X
LOW
HIGH
IND
X
LOW
HIGH
NC1/NC2 NO1/NO2
OFF
OFF
ON
NC3/NC4 NO3/NO4
OFF
OFF
ON
NC5/NC6 NO5/NO6
OFF
OFF
ON
NC7/NC8 NO7/NO8
OFF
OFF
ON
LOW
HIGH
HIGH
ON
ON
OFF
LOW
HIGH
HIGH
ON
ON
OFF
LOW
HIGH
HIGH
ON
ON
OFF
LOW
HIGH
HIGH
ON
ON
OFF
SWITCH
Figure 1. Functional Diagram
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX4670ETJ 功能描述:通信集成電路 - 若干 RoHS:否 制造商:Maxim Integrated 類型:Transport Devices 封裝 / 箱體:TECSBGA-256 數(shù)據(jù)速率:100 Mbps 電源電壓-最大:1.89 V, 3.465 V 電源電壓-最小:1.71 V, 3.135 V 電源電流:50 mA, 225 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube
MAX4670ETJ+ 功能描述:模擬開(kāi)關(guān) IC Integrated T1/E1/J1 rotection Switch RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)數(shù)量:2 開(kāi)關(guān)配置:SPDT 開(kāi)啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
MAX4670ETJ+T 功能描述:模擬開(kāi)關(guān) IC Integrated T1/E1/J1 rotection Switch RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)數(shù)量:2 開(kāi)關(guān)配置:SPDT 開(kāi)啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
MAX4670ETJ-T 功能描述:模擬開(kāi)關(guān) IC RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)數(shù)量:2 開(kāi)關(guān)配置:SPDT 開(kāi)啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
MAX4670EUU 制造商:Maxim Integrated Products 功能描述:- Rail/Tube
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