VGLA20RPDC
TechnicalProductData
Features
• VariableGainAmplifier
-3≤Gain≤23dB
• ExtremelyFlatGroupDelay
Lessthan1nsVariation
• ExcellentSWRThroughoutDynamicRange
SWR≤1.8:1 Max,≤1.5:1Typical
Description
TheVGLA20RPDCGPSVariableGainLineAmplifierisaoneinput,oneoutputdevicefeaturinga variablegainblockwith25dBofdynamicrange.ThefrequencyresponsecoverstheGPSL1/L2and GLONASSbandswithexcellentflatnessthroughoutmostoftheattenuationrange. Inthenormal configuration,theRFoutput（J1）passesDCfromtheconnectedGPSreceiverthroughtheamplifierto theantenna,allowingtheGPSreceivertopowerboththeantennaandtheamplifier.
ElectricalSpecifications,TA=250C
| Parameter | Conditions | Min | Typ | Max | Units |
| Freq.Range | Ant–J1 | 1.1 | | 1.7 | GHz |
| In/OutImpedance | Ant,J1 | | 50 | | Ω |
| Gain,MaxSetting | Ant–J1,ControlFullyClockwise | 22 | 23 | 24 | dB |
| Gain,MinSetting | Ant–J1,ControlFullyCounterclockwise | -4 | -3 | -2 | dB |
| InputSWR | J1-50Ω,acrossfullgainrange | | | 1.8:1 | - |
| OutputSWR | Ant-50Ω,acrossfullgainrange | | | 2.0:1 | - |
| GainFlatness | |L1-L2|,Ant–J1,from0dBgainto20+dBgain | | | 1.5 | dB |
| ReverseIsolation | J1–Ant,MaxGainsetting | 40 | | | dB |
| GroupDelay Flatness | τd,max-τd,min:Ant–J1 | | | 1 | ns |
| Req.DCInputV. | Non-NetworkConfiguration,DCInputonJ1 | 3.8 | | 15 | Vdc |
| Current（1） | AmplifierCurrentDraw,Allproducts-50Ω | | | 15 | mA |
（1）.CurrentdrawonJ1portinthenon-networkedconfiguration.
AvailableOptions
| NetworkPowerSupply |
| SourceVoltageOptions | VOLTAGEINPUT | STYLE |
| 110VAC | Transformer（WallMount） |
| 220VAC | Transformer（WallMount） |
| 240VAC（UnitedKingdom） | Transformer（WallMount） |
| CustomerSuppliedDC9-32VDC | MilitaryStyleConnector |
| OutputVoltageOptions（1） | DCVOLTAGEOUT | MAXCURRENTOUTFOR CORRESPONDINGVout（2） |
| 5V | 110mA |
| 7.5V | 130mA |
| 9V | 140mA |
| 12V | 170mA |
| 15V | 210mA |
| Custom | TDB |
| Pass/BlockDCOptions |
| PassDC（1） | AllPortsPassDC |
| DCBlocked（1） | AntisDCblocked,PassDCJ1 |
| RFConnectorOptions |
| ConnectorOptions | CONNECTORSTYLE | CHARGE |
| TypeN | NC |
| TypeSMA | NC |
| TypeTNC | NC |
| TypeBNC | NC |
（1）.WithNetworkOption,anyRFport（input oroutput）canbeDCblockedorcanpassthenetworkDC
voltage.
（2）.TA=+50oC.AssumingaSourceof110V,220Vor240VWallMountTransformer. Ingeneral, maximumoutputcurrentcanbedeterminedby:
Iout≤2.9/（VsourceDC–Vout）A
PartNumber
NVGLA20PDC-S/5/110
NetworkOption:
N=NetworkOption;Blank:NoNetwork
DCOptions:
DCB=Ant.DCBlocked;PDC=PassDC ConnectorOptions:
N=Ntype;S=SMA;T=TNC;B=BNC DCOutputVoltage:
3.3,5,7.5,9,12,15,CXX（Custom:“XX”denotesthedesiredV） SourceVoltage:
110-Transformer,220–Transformer,240–Transformer,MC–MilitaryConn.（Usersupplies
DCVoltage）
Performance
MaxGainSetting（ControlFullCW）
InputSWR（Ant.Port）andFrequencyResponse（Typical,TypeNConnector）
MinGainSetting（ControlFullCCW）
InputSWR（Ant.Port）andFrequencyResponse（Typical,TypeNConnector）
Mechanical
Dimensions: Height:1.3”
Length（notincludingconnectors）Body:2.5”
BasePlate:3.25”
Width: 2.5” Weight: 9.8oz.（272grams） OperatingTemp. Range:-40oto+75oC
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