uPA831TF transistor equivalent, npn silicon epitaxial transistor.
* Low noise
o Q1 : NF = 1.2 dB TYP., Q2 : NF = 1.4 dB TYP. r @f = 1 GHz, VCE = 3 V, IC = 7 mA
* High gain
P Q1 : |S21e|2 = 9.0 dB TYP. Q2 : |S21e|2 = 12.0 dB TYP..
The µPA831TF has two different built-in transistors (Q1
c and Q2) for low noise amplification in the VHF band to UHF u band. d FEATURES
* Low noise
o Q1 : NF = 1.2 dB TYP., Q2 : NF = 1.4 dB TYP. r @f = 1 GHz, VCE = 3 V, IC = 7 mA
* High gain
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