PRF957 View Datasheet(PDF) - Philips Electronics
Part Name
Description
MFG CO.
PRF957 Datasheet PDF : 16 Pages
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Philips Semiconductors
UHF wideband transistor
Product specification
PRF957
handbook, full pagewidth
unstable region
source
90°
+1
135°
+ 0.5
unstable
region load
1.0
+2
45°
0.8
0.6
+ 0.2
180°
f = 1 GHz; VCE = 6 V; IC = 5 mA;
Zo = 50 Ω.
(1) G = 16 dB
(2) G = 15 dB
(3) G = 14 dB
(4) NF = 1.3 dB
(5) NF = 1.5 dB
(6) NF = 1.7 dB.
(1)
0.2
0.5
0
(2)
(3)
− 0.2
− 0.5
−135°
Γopt
(4)
1
2
(5)
(6)
+5
5
0.4
0.2
0° 0
−5
−1
− 90°
−2 −45°
1.0
MGS522
Fig.12 Common emitter available gain, noise and stability circles; typical values.
handbook, full pagewidth
90°
unstable region
source
+1
135°
+ 0.5
unstable
region load
1.0
+2
45°
0.8
0.6
+ 0.2
0.4
+5
0.2
180° 0
0.2
(1)
0.5
Γopt
1
(5)
2
5
(7)
(6)
0° 0
f = 2 GHz; VCE = 6 V; IC = 5 mA;
Zo = 50 Ω.
(1) Gmax = 9.95 dB
(2) G = 9 dB
(3) G = 8 dB
(4) G = 7 dB
(5) NF = 1.8 dB
(6) NF = 2 dB
(7) NF = 2.2 dB.
− 0.2
(2)
(3)
− 0.5
−135°
(4)
−1
− 90°
−5
−2 −45°
1.0
MGS523
Fig.13 Common emitter available gain, noise and stability circles; typical values.
1999 Jul 23
8
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