f = 875 MHz
f = 845 MHz
Zload
Zsource
f = 875 MHz
f = 845 MHz
Zo = 10 Ω
VDD = 32 V, IDQ = 2 x 1000 mA, Pout = 45 W Avg., DVBT OFDM
f
MHz
Zsource
Ω
Zload
Ω
845
4.66 – j5.90
8.59 – j4.22
860
4.38 – j5.64
9.36 – j4.95
875
3.93 – j5.33
9.39 – j6.06
Zsource = Test circuit impedance as measured from
gate to gate, balanced configuration.
Zload = Test circuit impedance as measured
from drain to drain, balanced configuration.
Input
Matching
Network
Device
+ Under
Test
-
Z source
-
+
Z load
Output
Matching
Network
Figure 7. 845–875 MHz Narrowband Series Equivalent Input and Output Impedance
MRF377 MRF377R3 MRF377R5
6
MOTOROLA RF DEVICE DATA