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参数资料
| 型号： | ZLNB2009Q20TC |
| 厂商： | Diodes Inc |
| 文件页数： | 1/11页 |
| 文件大小： | 0K |
| 描述： | MUX DUAL DUAL H/V TONE SW 20QSOP |
| 标准包装： | 2,500 |
| 功能： | 多路控制器 |
| RF 型： | LNB，DiSEqC?，STBs |
| 次要属性： | 带双音和极性开关 |
| 封装/外壳： | 20-SSOP（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
ZLNB2006
DUAL TONE AND POLARITY SWITCH
LNB MULTIPLEX CONTROLLER
DEVICE DESCRIPTION
ZLNB2009
ZLNB2010
The ZLNB2006/09/10 group of dual polarisation and
tone switch controller are part of a wide range of
satellite receiver LNB support circuits available from
Zetex. Each part features two completely independent
channels, each providing logic outputs to control LNB
polarisation selection, local oscillator selection and the
ZLNB2009/10 also provides downfeed disable. They
are intended for use in Twin Universal and Quad LNBs,
replacing many discrete components to save both
manufacturing cost and PCB size whilst improving
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 ZLNB2006/09/10 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 ZLNB2006/9,
additional control of tone switch delays is provided to
assist with the rejection of low frequency control
signals intended for other systems.
reliability.
Polarisation switch and tone detector outputs can
T h e tw o pol a ri s at i on c ont r ol i nput s o f t h e
ZLNB2006/09/10 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.
Multi Feed LNBs can be called to operate with one or
more of their controlling receivers powered
down/disconnected, with attendant cable mismatch
problems. To ease design for this situation, each
polarisation input of the ZLNB2009/10 has a second
threshold set at 9.5V. An input voltage below this
threshold indicates “receiver not present”, switching
the relevant control channels high. This logic output
can be used to disable the associated downfeed driver,
eliminating any problems due to cable mismatch.
FEATURES
? Dual polarisation switch
? Temperature compensated polarisation switch
threshold
? Transient resistant inputs
? Includes Receiver-Off detector (ZLNB2009/10)
? Dual tone switch
? User adjustable filter centre frequency and
bandwidth
? User adjustable tone switching delays
? Tone and Pol outputs are TTL, CMOS, Pin diode
and IF amp capable
ISSUE 1 - APRIL 2002
1
source and sink 10mA making them suitable to drive
TTL and CMOS logic, pin diodes and IF-amp supply
switching.
The ZLNB2006/09/10 operates from a single supply
which can be anything from 5-10V. Their quiescent
current is typically only 6mA and this does not change
significantly with load or logic state. They are available
in the space saving QSOP16 or QSOP20 surface mount
package.
? Wide supply operating range
? Low quiescent current
? Few external components
? Eliminates many discrete components
APPLICATIONS
? Twin Universal LNB
? Multi Feed Universal Lnb’s
? Twin Universal IF switch boxes
? LNB switch boxes
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ZLNB2010 | 制造商:ZETEX 制造商全称:ZETEX 功能描述:DUAL TONE AND POLARITY SWITCH LNB MULTIPLEX CONTROLLER |
| ZLNB2010Q16 | 制造商:未知厂家 制造商全称:未知厂家 功能描述: |
| ZLNB2010Q16TC | 功能描述:编码器、解码器、复用器和解复用器 DUAL H/V TONE SWITCH MUX CONTROLLER RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| ZLNB2010Q20TC | 功能描述:编码器、解码器、复用器和解复用器 Dual RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| ZLNB2012 | 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:DUAL TONE AND POLARITY SWITCH LNB MULTIPLEX CONTROLLER |
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