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ZLNB1001
DBS tone and polarity multiplex controller
Description
The ZLNB1001 multiplex controller is one of a wide range of satellite
receiver LNB and IF distribution support circuits available from Zetex.
It supports a single IF path providing logic outputs to select one of four
IF switch input channels, which typically using PIN diodes. It is
intended for use in multi-switch applications for selection and
distribution of universal LNB IF output signals, replacing many discrete
components including the voltage regulator to save both
manufacturing cost and PCB size whilst improving reliability.
The highly accurate control input of the ZLNB1001 has both voltage and tone control for the four
required states. The voltage threshold is nominally 14.5 V and to meet the demanding
requirements of some broadcasters it has a switching range of 14.0 V to 15 V. The threshold is
temperature compensated to minimize drift. This features a low and stable input current that
enables transient protection to be achieved with the addition of only a single resistor.
The outputs are configured to deliver a positive regulated voltage drive of 7 V when a desired
channel is selected, and 0V when de-selected.
Features
■ Precision voltage and tone detectors
■ Temperature compensated
■ Low cost solution
■ Integrated tone filter
■ Powered from STB: no additional power requirement
■ Direct drive to PIN diodes
■ SO8 SMD package
Pin out - top view
Applications
■ Switch boxes for satellite IF distribution
■ LNB receivers
VIN
VPOL
FIN
GND
1
2
3
4
8
7
6
5
VOUT4
VOUT3
VOUT2
VOUT1
Issue 1 - September 2005
? Zetex Semiconductors plc 2005
1
www.zetex.com
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相关代理商/技术参数
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ZLNB100N8TC 功能描述:开关变换器、稳压器与控制器 Dual Polar Switch RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel
ZLNB100X 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:DUAL POLARISATION SWITCH TWIN LNB
ZLNB100X8 制造商:ZETEX 制造商全称:ZETEX 功能描述:
ZLNB100X8TC 功能描述:开关变换器、稳压器与控制器 Dual Polar Switch RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel
ZLNB101 制造商:ZETEX 制造商全称:ZETEX 功能描述:DUAL POLARISATION SWITCH TWIN LNB MULTIPLEX CONTROLLER
ZLNB101N8 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:DUAL POLARISATION SWITCH TWIN LNB
ZLNB101N8TC 功能描述:开关变换器、稳压器与控制器 Dual Polar Switch RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel