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參數(shù)資料
| 型號(hào)： | ZLNB2002Q16 |
| 廠商： | ZETEX PLC |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | DUAL TONE and POLARITY SWITCH LNB MULTIPLEX CONTROLLER |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO16 |
| 封裝： | QSOP-16 |
| 文件頁(yè)數(shù)： | 8/12頁(yè) |
| 文件大?。?/td> | 168K |
| 代理商： | ZLNB2002Q16 |
FURTHER INFORMATION
1) Inputs V
POL1
and V
POL2
are designed to be
wired to the power inputs of an LNB via
high value (10k) resistors. Input V
POL1
controls outputs HVout1 and Enable1.
Input V
POL2
controls outputs HVout2 and
Enable2. With either input voltage set at
or below 14V, the corresponding HVout
pin will be in active. With either input
voltage at or above 15.5V, the
corresponding HVout pin will be active.
Should the voltage applied to either V
POL
input fall below 8V, the corresponding
Enable pin will be low, otherwise these
outputs will be high.Any input or output
not required may be left open-circuit.
2) The ZLNB2001/2 includes the circuitry
necessary to detect the presence of 22kHz
tones modulated on either of two supply
inputs to the lnb. The main elements of
the detectors in each channel are an
op-amp enabling the construction of a
Sallen Key filter, a rectifier/smoother and
a comparator. Full user control is given
over the centre frequency and bandwidth
of the filter using two external resistors
and capacitors (one of these resistors
shares the function of overvoltage
protection of the corresponding V
POL
pin,
i.e. the 10k referenced in note 1). The
comparator circuit utilises no external
components. The presence of a 22kHz
tone applied to pin Fin1 or Fin2 switches
the corresponding output Tout1 or Tout2
high.
3) The ZLNB2003 / 4 includes the circuitry
necessary to detect the presence of 22kHz
tones modulated on either of two supply
inputs to the LNB. The main elements of
the detectors in each channel are an
op-amp enabling the construction of a
Sallen Key filter, a rectifier/smoother and
a comparator. Full user control is given
over the centre frequency and bandwidth
of the filter using two external resistors
and capacitors (one of these resistors
shares the function of overvoltage
protection of the corresponding Vpol pin,
i.e. the 10k referenced in note 1). The
comparator circuit utilises no external
components. The presence of a 22kHz
tone applied to pin Fin1 or Fin2 switches
the corresponding output Tout1 or Tout2
high. Pins Crec1 and Crec2 make
accessible the outputs of the tone switch
rectifiers and provides a means of
controlling tone switch delays.
Significant switching delays may be
necessary to avoid incorrect operation in
the presence of unwanted interference
(e.g. switching tones intended for other
signalling systems). For correct
operation of the IC, a capacitor and a
parallel connected resistor should be
connected between each Crec pin and
ground. The Tout low to high delays are
set solely by the added capacitors at
approximately 22ms/uF. The high to low
delays are set by the time constant of
each resistor capacitor combination at
approximately 0.2CR seconds. A
capacitor of 100nF and resistor of 1MW
will give a low to high delay of around
2.2ms and a high to low delay of 20ms,
providing immunity to the 60Hz square
wave signal occasionally used for
switching between multiple LNB units.
ZLNB2001 ZLNB2002
ZLNB2003 ZLNB2004
87
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ZLNB2001Q16 | DUAL TONE and POLARITY SWITCH LNB MULTIPLEX CONTROLLER |
| ZLNB2003Q16 | Circular Connector; Body Material:Aluminum; Series:PT01; No. of Contacts:26; Connector Shell Size:16; Connecting Termination:Solder; Circular Shell Style:Cable Receptacle; Circular Contact Gender:Socket; Insert Arrangement:16-26 |
| ZLNB2004Q16 | Circular Connector; No. of Contacts:26; Series:; Body Material:Aluminum; Connector Shell Size:16; Circular Contact Gender:Socket; Circular Shell Style:Box Mount Receptacle; Insert Arrangement:16-26 |
| ZLNB2001 | M39012 MIL RF CONNECTOR |
| ZLNB2002 | M39012 MIL RF CONNECTOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ZLNB2002Q16TC | 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 Dual RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| ZLNB2003 | 制造商:DIODES 制造商全稱:Diodes Incorporated 功能描述:DUAL TONE and POLARITY SWITCH LNB MULTIPLEX CONTROLLER |
| ZLNB2003Q16 | 制造商:ZETEX 制造商全稱:ZETEX 功能描述:DUAL TONE and POLARITY SWITCH LNB MULTIPLEX CONTROLLER |
| ZLNB2003Q16TC | 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 Dual RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| ZLNB2004 | 制造商:ZETEX 制造商全稱:ZETEX 功能描述:DUAL TONE and POLARITY SWITCH LNB MULTIPLEX CONTROLLER |
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