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ZLNB2002Q16TA PDF预览

ZLNB2002Q16TA

更新时间： 2024-11-18 13:16:15
品牌 Logo 应用领域
捷特科 - ZETEX 模拟IC信号电路光电二极管控制器
页数 文件大小 规格书
12页 170K
描述
Analog Circuit, 1 Func, PDSO16, QSOP-16

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ZLNB2002Q16TA 技术参数

生命周期：Transferred包装说明：SSOP,
Reach Compliance Code：unknownHTS代码：8542.39.00.01
风险等级：5.04模拟集成电路 - 其他类型：ANALOG CIRCUIT
JESD-30 代码：R-PDSO-G16JESD-609代码：e3
长度：4.9 mm湿度敏感等级：1
功能数量：1端子数量：16
最高工作温度：70 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：SSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, SHRINK PITCH
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.75 mm最大供电电压 (Vsup)：10 V
最小供电电压 (Vsup)：5 V标称供电电压 (Vsup)：5 V
表面贴装：YES温度等级：OTHER
端子面层：MATTE TIN端子形式：GULL WING
端子节距：0.635 mm端子位置：DUAL
处于峰值回流温度下的最长时间：40宽度：3.9116 mm
Base Number Matches：1

ZLNB2002Q16TA 数据手册

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ZLNB2001 ZLNB2002  
ZLNB2003 ZLNB2004  
DUAL TONE and POLARITY SWITCH LNB  
MULTIPLEX CONTROLLER  
ISSUE 1- NOVEMBER 1998  
DEVICE DESCRIPTION  
"receiver not present", switching the  
channels Enable pin low. This logic output  
can be used to disable the associated  
downfeed driver, eliminating any problems  
due to cable mismatch.  
The ZLNB200X dual polarisation and tone  
switch controller is one of a wide range of  
satellite receiver LNB support circuits  
available from Zetex. It features two  
completely independent channels, each  
providing logic outputs to control LNB  
polarisation selection, local oscillator  
selection and downfeed disable. It is  
intended for use in Twin Universal LNBs,  
replacing manydiscretecomponents tosave  
both manufacturing cost and PCB size whilst  
improving reliability.  
Universal LNB local oscillator selection is  
achieved by detection of a low level AC  
voltage superimposed on the polarisation  
control voltage. To facilitate this function,  
the ZLNB200X includes a separate tone  
detector for each channel. Full control of  
detector bandwidth and sensitivity is  
provided using two external resistors and  
capacitors. In the ZLNB2003/4, additional  
control of tone switch delays is provided to  
assist with the rejection of low frequency  
control signals intended for other systems.  
The two polarisation control inputs of the  
ZLNB200X have a nominal threshold of  
14.75V. The threshold is temperature  
compensated to minimise drift. Each  
features a low and stable input current that  
enables transient protection to be achieved  
with the addition of only a single resistor per  
channel.  
Polarisation switch and tone detector  
outputs can source and sink 10mA making  
them suitable to drive TTL and CMOS logic,  
pin diodes and for IF-amp supply switching.  
Twin Universal LNBs can be called to  
operate with one of their controlling  
receivers powered down/disconnected, with  
attendant cable mismatch problems. To  
ease design for this situation, each  
polarisation input of the ZLNB200X has a  
second threshold set at 9.5V. An input  
voltage below this threshold indicates  
The ZLNB200X operates from a single  
supply which can be anything from5-10V. Its  
quiescent current is typically only 6mA and  
this does not change significantly with load  
or logic state. It is available in the space  
saving QSOP16 surface mount package.  
FEATURES  
Receiver-Off detector TTL and CMOS  
•
compatible  
Dual polarisation switch  
•
•
Wide supply operating range  
•
Temperature compensated polarisation  
switch threshold  
Low quiescent current  
•
Few external components  
Transient resistant inputs  
•
•
Eliminates many discrete components  
Includes Receiver-Off detector  
•
•
Dual tone switch  
•
•
APPLICATIONS  
User adjustable filter centre frequency  
and bandwidth  
Twin Universal LNB  
•
Twin Universal IF switch boxes  
User adjustable tone switching delays  
(ZLNB2003/4 only)  
•
•
LNB switch boxes  
•
Tone and pol. outputs TTL, CMOS, Pin  
diode and IF amp capable  
•
81  
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