Module: RF Power Amplifier
Function:
provide 3-5 Watts RF output
Input/Output:
- POWER: 9-15 VDC, 5.5 x 2.5mm power jack
- RF IN: Zin = 50 ohms, expect 10.8 V p-p, BNC Jack
- RF OUT: Zout = 50 ohms, BNC Jack
- KEY IN: Zin >=10K, driven by CMOS, RCA Jack 0 V = key-down (i.e., transmit)
Operator Controls:
- No operator controls anticipated
Key Specs or Limitations:
- Class AB preferred for future SSB use, Class C OK
- Gain 12-14 with .25-.35 W drive (typ)
- Broadband topology preferred, single band OK
- Push-Pull preferred for 2nd harmonic rejection, single ended OK
- Output stage should withstand loads of 5-500 ohms without damage
- Negligible backwave when un-keyed (< 1 mW)
- Heatsink may extend outside normal form factor
Misc Notes: