Product Summary

The bgy145b/s is a RF amplifier module, designed for use in transmitters of mobile communications equipment powered by vehicles with 12.5V battery supplies. The bgy145b/s is a two-stage transistor amplifier and consists of two RF npn transistors, together with surface mounted components that make up the matching and bias circuits. The bgy145b/s will provide 28W RF power into a 50Ω loadm when operated within the frequency range of 146 to 174MHz.

Parametrics

bgy145b/s absolute maximum ratings: (1) DC supply voltage VS1, VS2: 15.5V; (2) RF input terminal voltage ±Vi: 25V; (3) RF output terminal voltage: 25V; (4) RF input power PD: 450mW; (5) RF output power PL: 40W; (6) storage temperature range Tstg: -30 to 100°C; (7) heatsink operating temperature Th: 90°C.

Features

bgy145b/s characteristics: (1) quiescent current IQ1: 10 to 25mA (PD=0) ; (2) quiescent current IQ2: 35mA (PD=0) ; (3) RF output power PL: 300mW (PD=300mW) ; (4) RF power gain Gp: 19.7dB (PL=28W) ; (5) 2nd&3rd harmonic outputs: -30dBc (PL=28W) .

Diagrams

BGY145B/S Circuit