M168776

The M168776 is a type of silicon MOS FET power amplifier with 135-175MHz, 6.5W FM portable. The absolute maxim um ratings of the M168776 can be summarized as:(1)supply voltage(VGG<3.5V, Zg=ZI=50ohms): 9.2V; (2)gate bias voltage: 4V; (3)input power(f=135-175MHz, Zg=ZI=50ohms): 30mW; (4)output power(f=135-175MHz, Zg=ZI=50 oh ms): 10W;(5)operation case temperature(f=135-175MHz, Zg=ZI=50ohms):-30deg; (6)storage temperature:-40 to 110.

Electrical characteristics of M168776 are:(1)frequency range: 135MHz min and 175MHz max; (2)output power(Vdd= 7.2V, Vgg=3.5V, pin=20mW): 6.5W min; (3)total efficiency(Vdd=7.2V, Vgg=3.5V, pin=20mW): 40% min; (4)2nd harm onic(Vdd=7.2V, Vgg=3.5V, pin=20mW):-25dBc; (5)input VSWR(Vdd=7.2V, Vgg=3.5V, pin=20mW): 4; (6)stability(Zg= 500hms, Vdd=4-9.2V, load VSWR<4:1)with no parastic oscillation; (7)load VSWR tolerance(Vdd=9.2V, pin=20mW, Po =6.5W, Zg=50ohms, load VSWR=20.1)with no degration or destroy.