MRF1570NT1 MRF1570FNT1
13
RF Device Data
Freescale Semiconductor
Zin
= Complex conjugate of source
impedance.
ZOL* = Complex conjugate of the load
impedance at given output power,
voltage, frequency, and ηD
> 50 %.
Notes: Impedance Zin
was measured with input terminated at 50
.
Impedance Z
OL
was measured with output terminated at 50
.
Figure 32. Series Equivalent Input and Output Impedance
f
MHz
Zin
Ω
ZOL*
Ω
450 0.94 -j1.12 0.61 -j1.14
VDD
= 12.5 V, I
DQ
= 0.8 A, P
out
= 70 W
470 1.03 -j1.17 0.62 -j1.12
500 0.95 -j1.71 0.75 -j1.03
520 0.62 -j1.74 0.77 -j0.97
f
MHz
Zin
Ω
ZOL*
Ω
400 0.92 -j0.71 1.05 -j1.10
VDD
= 12.5 V, I
DQ
= 0.8 A, P
out
= 70 W
440 1.12 -j1.11 0.83 -j1.45
470 0.82 -j0.79 0.59 -j1.43
f
MHz
Zin
Ω
ZOL*
Ω
135 2.8 +j0.05 0.65 +j0.42
VDD
= 12.5 V, I
DQ
= 0.8 A, P
out
= 70 W
155 3.9 +j0.34 1.01 +j0.63
175 2.4 -j0.47 0.71 +j0.37
Zin
f = 175 MHz
ZOL*
f = 470 MHz
Zo
= 5
Ω
Zin
ZOL*
Zin
ZOL*
Input
Matching
Network
Device
Under Test
Output
Matching
Network
f = 175 MHz
f = 470 MHz
f = 520 MHz
Zo
= 5
Ω
Zin
ZOL*
f = 450 MHz
f = 135 MHz
f = 135 MHz
f = 400 MHz
f = 400 MHz
f = 450 MHz
f = 520 MHz
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