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參數(shù)資料
| 型號： | ZNBG3211Q20 |
| 廠商： | ZETEX PLC |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | Circular Connector; MIL SPEC:MIL-DTL-38999 Series III; Body Material:Metal; Series:TVP00; No. of Contacts:24; Connector Shell Size:25; Connecting Termination:Crimp; Circular Shell Style:Wall Mount Receptacle; Body Style:Straight |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO20 |
| 封裝： | QSOP-20 |
| 文件頁數(shù)： | 12/16頁 |
| 文件大?。?/td> | 387K |
| 代理商： | ZNBG3211Q20 |
ZNBG3210
ZNBG3211
Single Universal LNB Block Diagram
The following block diagram shows the main section of an LNB designed for use with the Astra
series of satellites. The ZNBG3210/11 is the core bias and control element of this circuit. The
ZNBG provides the negative rail, FET bias control, polarisation switch control, tone detection and
band switching with the minimum of external components. Compared to other discrete
component solutions the ZNBG circuit reduces component count and overall size required.
Tone detection and band switching is provided on the ZNBG3210/11 devices. The following
diagrams describes how this feature operates in an LNB and the external components required.
The presence or absence of a 22kHz tone applied to pin F
IN
enables one of two outputs, L
and
H
. A tone present enables H
and tone absent enables L
. The L
and H
outputs are designed
to be compatible with both MMIC and discrete local oscillator applications, selected by pin L
.
Referring to Figure 1 wiring pin L
to ground will force L
B
and H
to switch between -2.6V
(disabled) and 0V (enabled). Referring to Figure 2 wiring pin L
to a positive voltage source (e.g.
a potential divider across V
and ground set to the required oscillator supply voltage, V
) will
force the L
B
and H
B
outputs to provide the required oscillator supply, V
OSC
, when enabled.
Tone Detection Function
L
OV
F
IN
L
B
H
B
L
B
H
B
G
ND
22kHz
Disabled
Enabled
-2.6 volts
G
ND
—
Enabled
Disabled
G
ND
-2.6 volts
V
OSC
22kHz
Disabled
Enabled
Note 1
V
OSC
—
Enabled
Disabled
V
OSC
Note 1
Note 1: 0 volts in typical LNB applications but dependent on extenal circuits.
67-12
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| ZNBG3211Q20TC | 功能描述:MOSFET 3BIAS TONE H/V SWTCH 2.0V RoHS:否 制造商:STMicroelectronics 晶體管極性:N-Channel 汲極/源極擊穿電壓:650 V 閘/源擊穿電壓:25 V 漏極連續(xù)電流:130 A 電阻汲極/源極 RDS（導(dǎo)通）:0.014 Ohms 配置:Single 最大工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:Max247 封裝:Tube |
| ZNBG3310Q16TC | 制造商:Diodes Incorporated 功能描述:LOGIC BIAS GEN AND OSC SWITCH - Tape and Reel |
| ZNBG4000 | 制造商:DIODES 制造商全稱:Diodes Incorporated 功能描述:FET BIAS CONTROLLER |
| ZNBG4000Q16 | 制造商:ZETEX 制造商全稱:ZETEX 功能描述:FET BIAS CONTROLLER |
| ZNBG4000Q16TC | 功能描述:接口 - 專用 FET BIAS CONTROLLER RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59 |
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