Reg 5W driver amplifer

spriya

unread,

Mar 18, 2024, 3:06:52 AM3/18/24

to RFPowerTools Forum

Hi,

It is mentioned that 1-55MHz 5W driver amplifer board uses the IC AFT09MS015N. However, it is mentioned that the IC is suitable for 136-941 MHz. Hence, my query is can somebody share the test date for the 5W driver amplifier board for the frequency range of 1-55MHz?

Thanks in Advance!

Sathya

spriya

unread,

Mar 18, 2024, 3:08:15 AM3/18/24

to RFPowerTools Forum

Pls note that it is mentioned in the datasheet of the IC AFT09MS015N, that it is suitable for 136-941 MHz.

spriya

unread,

Mar 18, 2024, 4:43:10 AM3/18/24

to RFPowerTools Forum

Hi,

My apologies. pls read as test data instead of test date.

Thanks

jcve...@gmail.com

unread,

Mar 18, 2024, 7:18:01 AM3/18/24

to RFPowerTools Forum

For the RF Power tools AFT09MS015N 5W amplifier:

Here is the gain vs frequency data at 1W output and 5W output for the driver circuit with the MMG3H21NT1 MMIC pre-driver installed:

Freq Pin dBm Po W Gain Pin dBm Po W Gain
1.9 -11.6 1 41.6 -5.7 5 42.7
3.8 -11.3 1 41.3 -5.3 5 42.3
7.2 -11.6 1 41.6 -5.6 5 42.6
10.1 -11.6 1 41.6 -5.9 5 42.9
14.2 -11.9 1 41.9 -5.9 5 42.9
18.1 -12.0 1 42.0 -6.2 5 43.2
21.1 -12.3 1 42.3 -6.2 5 43.2
24.9 -12.3 1 42.3 -6.2 5 43.2
28.3 -12.5 1 42.5 -6.2 5 43.2
51.2 -12.2 1 42.2 -4.8 5 41.8

Here is the gain vs frequency data at 1W and 5W output for the circuit without the MMIC pre-driver:

Freq Pin dBm Po W Gain    Pin dBm Po W Gain
1.9   10.3 1    19.7    16.9 5 20.1
3.8   10.5 1    19.5    16.9 5 20.1
7.2   10.6 1    19.4    16.9 5 20.1
10.1 10.4 1    19.6    17.1 5 19.9
14.2 10.5 1    19.5    17.1 5 19.9
18.1 10.8 1    19.2    17.1 5 19.9
21.1 10.9 1    19.1    17.1 5 19.9
24.9 10.5 1    19.5    17.1 5 19.9
28.3 10.9 1    19.1    17.6 5 19.4
51.2 10.3 1    19.7    17.1 5 19.9

The amplifier is still very linear at 5W output, the 1dB compression point as 7-8W.