收藏本站
参数资料
型号： MAX3407EUK
厂商： MAXIM INTEGRATED PRODUCTS INC
元件分类： 通用总线功能
英文描述： 75з/100з/120з Switchable Termination Networks
中文描述： 1-LINE 120 ohm OTHER TERMINATOR, PDSO5
封装： SOT-23, 5 PIN
文件页数： 4/6页
文件大小： 132K
代理商： MAX3407EUK
Detailed Description
The MAX3406/MAX3407/MAX3408 are line-terminating
networks. They provide 75
, 100
, and 120
termina-
tion to be compatible with twisted pair or coaxial cable.
The MAX3406/MAX3407/MAX3408 consume only 50μA
supply current and operate from a +4.5V to +5.5V
power supply. They are available in a space-saving 5-
pin SOT23 package. All specifications are guaranteed
over the extended temperature range of -40
°
C to
+85
°
C.
The ENABLE pin allows switching from one termination
value to another: 75
to 100
for the MAX3406, 75
to
120
for the MAX3407, and 100
to 120
for the
MAX3408 (Figure 1 and Table 1).
Applications Information
In order for the MAX3406/MAX3407/MAX3408 to termi-
nate transmission lines correctly, they should look like a
precision resistance. These devices look this way under
all operating conditions as can be seen from the
Typical
Operating Characteristics.
The very small variations in
resistance with temperature, input voltage, and frequen-
cy should not be of any concern in most applications,
though the users should be aware of them. The next
three sections describe these variations and explain
what end application effect they could have.
The function of a termination is to minimize line reflec-
tions by terminating a transmission line in its character-
istic impedance. The reflection coefficient for a line of
Z0 characteristic impedance terminated with a given
ZL is:
Voltage Reflection Coefficient = (ZL - Z0)/(ZL + Z0)
M
75
/100
/120
Switchable Termination
Networks
4
_______________________________________________________________________________________
0%
20%
10%
50%
40%
30%
80%
70%
60%
90%
74.40
74.80
RESISTANCE (
)
74.60
75.00
75.20
75.40
75.60
ACCURACY DISTRIBUTION
75
MODE
M
P
0%
20%
10%
50%
40%
30%
80%
70%
60%
90%
98.8
99.6
RESISTANCE (
)
99.2
100.0
100.4
100.8
101.2
ACCURACY DISTRIBUTION
100
MODE
M
P
0%
20%
10%
50%
40%
30%
80%
70%
60%
90%
118.5
119.5
RESISTANCE (
)
119.0
120.0
120.5
121.0
121.5
ACCURACY DISTRIBUTION
120
MODE
M
P
Typical Operating Characteristics (continued)
(V
CC
= +5V, T
A
= +25
°
C, unless otherwise noted.)
Pin Description
PIN
1
2
NAME
V
CC
GND
FUNCTION
Supply Voltage +4.5V to +5.5V. Bypass to GND with a 0.1
μ
F capacitor.
Ground
3
ENABLE
Digital Control Input. Drive ENABLE high to turn on the internal switch, pull ENABLE low to disable
the internal switch.
4
5
B
A
Cable Terminator Terminal B
Cable Terminator Terminal A
相关PDF资料
PDF描述
MAX3408 75з/100з/120з Switchable Termination Networks
MAX3408EUK 75з/100з/120з Switchable Termination Networks
MAX3430 【80V Fault-Protected, Fail-Safe, 1/4-Unit Load, #.3V RS-485 Transceiver
MAX3430CPA 【80V Fault-Protected, Fail-Safe, 1/4-Unit Load, #.3V RS-485 Transceiver
MAX3430CSA 【80V Fault-Protected, Fail-Safe, 1/4-Unit Load, #.3V RS-485 Transceiver
相关代理商/技术参数
参数描述
MAX3407EUK-T 功能描述:通信集成电路 - 若干 RoHS:否 制造商:Maxim Integrated 类型:Transport Devices 封装 / 箱体:TECSBGA-256 数据速率:100 Mbps 电源电压-最大:1.89 V, 3.465 V 电源电压-最小:1.71 V, 3.135 V 电源电流:50 mA, 225 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube
MAX3408EUK 制造商:Maxim Integrated Products 功能描述:75OHM/100OHM/120OHM SWITCHABLE TERM - Cut Tape Product
MAX3408EUK+T 功能描述:通信集成电路 - 若干 75/100/120Ohm Swx Termination Network RoHS:否 制造商:Maxim Integrated 类型:Transport Devices 封装 / 箱体:TECSBGA-256 数据速率:100 Mbps 电源电压-最大:1.89 V, 3.465 V 电源电压-最小:1.71 V, 3.135 V 电源电流:50 mA, 225 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube
MAX3408EUK-T 功能描述:通信集成电路 - 若干 RoHS:否 制造商:Maxim Integrated 类型:Transport Devices 封装 / 箱体:TECSBGA-256 数据速率:100 Mbps 电源电压-最大:1.89 V, 3.465 V 电源电压-最小:1.71 V, 3.135 V 电源电流:50 mA, 225 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube
MAX3420EECJ 功能描述:外围驱动器与原件 - PCI RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*