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| BB402M Datasheet, PDF (3/11 Pages) Hitachi Semiconductor – Build in Biasing Circuit MOS FET IC UHF/VHF RF Amplifier | |||
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Main Characteristics
Test Circuit for Operating Items (I D(op) , |yfs|, Ciss, Coss, Crss, NF, PG)
VG1
RG
Gate 1
VG2
Gate 2
BB402M
Source
Drain
A
ID
Power Gain, Noise Figure Test Circuit
VT
1000p
VG2
1000p
VT
1000p
Input (50â¦)
1000p
1000p 47k
47k
BBFET
L1
36p
1000p
1SV70
R G 120k
47k
L2
1000p
Output (50â¦)
10p max
RFC
1SV70
1000p
V D = V G1
L1: Ï1mm Enameled Copper Wire,Inside dia 10mm, 2Turns
L2: Ï1mm Enameled Copper Wire,Inside dia 10mm, 2Turns
RFC: Ï1mm Enameled Copper Wire,Inside dia 5mm, 2Turns
Unit Resistance (â¦)
Capacitance (F)
3
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