Datasheet

2001 Jan 18 8
Philips Semiconductors Preliminary specification
UHF wideband transistor PBR941B
handbook, full pagewidth
MGS506
0
0.2
0.6
0.4
0.8
1.0
1.0
+5
+2
+1
−0.2
−0.5
−1
−2
−5
0.5 1
2 5
180
°
−135 °
−90 °
−45 °
0 °
45 °
90 °
unstable
region load
unstable region
source
(2)
(3)
(4)
(5)
Γopt
(6)
(1)
0
+0.2
+0.5
135 °
Fig.12 Common emitter available gain, noise and stability circles; typical values.
f=1GHz; V
CE
=6V;
I
C
=5mA; Z
o
=50Ω.
(1) G = 17 dB.
(2) G = 16 dB.
(3) G = 15 dB.
(4) NF = 1.6 dB.
(5) NF = 1.8 dB.
(6) NF = 2 dB.
handbook, full pagewidth
MGS507
0
0.2
0.6
0.4
0.8
1.0
1.0
+5
+2
+1
+0.5
−0.5
−1
−2
−5
0.2
1
2
5
180
°
−135°
−90°
−45°
0°
45°
90°
135°
(2)
(3)
(4)
(5)
(6)
(7)
unstable
region load
unstable region
source
(1)
Γopt
0
+0.2
0.5
−0.2
Fig.13 Common emitter available gain, noise and stability circles; typical values.
f=2GHz; V
CE
=6V; I
C
=5mA;
Z
o
=50Ω.
(1) G
max
=10.9dB.
(2) G = 10 dB.
(3) G = 9 dB.
(4) G = 8 dB.
(5) NF = 2.1 dB.
(6) NF = 2.3 dB.
(7) NF = 2.5 dB.