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BB304C Datasheet, PDF (3/10 Pages) Hitachi Semiconductor – Build in Biasing Circuit MOS FET IC UHF RF Amplifier
BB304C
Main Characteristics
Test Circuit for Operating Items (ID(op) , |yfs|, Ciss, Coss, Crss, NF, PG)
VG2
Gate 2
RG
VG1
Gate 1
Drain
A
ID
Source
200MHz Power Gain, Noise Figure Test Circuit
VT
1000p
VG2
1000p
VT
1000p
Input(50Ω)
1000p
1000p
47k
47k
BBFET
L1
36p
1000p
1SV70
RG
470k
47k
L2
1000p
Output(50Ω)
10p max
RFC
1SV70
1000p
VD = VG1
L1 : φ1mm Enameled Copper Wire,Inside dia 10mm, 2Turns
L2 : φ1mm Enameled Copper Wire,Inside dia 10mm, 2Turns
RFC : φ1mm Enameled Copper Wire,Inside dia 5mm, 2Turns
Unit Resistance (Ω)
Capacitance (F)
Rev.6.00 Aug 10, 2005 page 3 of 9