參數(shù)資料
型號: ZNBG3115Q20
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; Number of Contacts:42; 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: MO-137AD, QSOP-20
文件頁數(shù): 11/14頁
文件大小: 1845K
代理商: ZNBG3115Q20
ZNBG3115
ZNBG3116
ISSUE 1 - JUNE 2001
11
ZNBG3115/16
Regulator
Single Universal LNB Block Diagram
ThefollowingblockdiagramshowsthemainsectionofanLNBdesignedforusewiththeAstraseriesofsatellites.
The ZNBG3115/16 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.
APPLICATIONS INFORMATION(cont)
Tone detection and band switching is provided on the ZNBG3115/16 devices. The following diagrams describes
how this feature operates in an LNB and the external components required. The presence or absence of a 22kHz
toneappliedtopinF
enablesoneoftwooutputs,L
andH
.AtonepresentenablesH
andtoneabsentenables
L
. The L
and H
outputs are designed to be compatible with both MMIC and discrete (bipolar or FET) local
oscillator applications, selected by pin L
. Referring to Figure 1 wiring pin L
to ground will force L
and H
to
switchbetween-2.6V(disabled)and0V(enabled).ReferringtoFigures2and3 wiringpinL
toapositivevoltage
source (e.g. a potential divider across V
and ground set to the required oscillator supply voltage, V
) will
forcetheL
B
andH
B
outputstoprovidetherequiredoscillatorsupply,V
OSC
,whenenabledand0Vwhendisabled.
Tone Detection Function
L
OV
F
IN
L
B
H
B
L
B
H
B
G
ND
22kHz
Disabled
Enabled
-3 volts
G
ND
Enabled
Disabled
G
ND
-3 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 ependent on extenal circuits.
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參數(shù)描述
ZNBG3115Q20TC 功能描述:MOSFET 3BIAS TONE H/V SWTCH 2.2V 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
ZNBG3116 制造商:ZETEX 制造商全稱:ZETEX 功能描述:FET BIAS CONTROLLER WITH POLARISATION SWITCH AND TONE DETECTION
ZNBG3116Q16 制造商:ZETEX 制造商全稱:ZETEX 功能描述:FET BIAS CONTROLLER WITH POLARISATION SWITCH AND TONE DETECTION
ZNBG3116Q16(1) 制造商:ZETEX 制造商全稱:ZETEX 功能描述:
ZNBG3116Q20 制造商:ZETEX 制造商全稱:ZETEX 功能描述:FET BIAS CONTROLLER WITH POLARISATION SWITCH AND TONE DETECTION