DRF1401 Datasheet, PDF (4/7 Pages) List of Unclassifed Manufacturers – UHF POWER TRANSISTOR

UHF POWER TRANSISTOR
DRF1401
¤ APPLICATION INFORMATION (I)
RF performance at Ts ≤ 60  in common emitter test circuit (see Fig 7)
Mode of Operation
CW, class-AB
f [MHz]
900
VCE [V]
4.8
PL [mW]
600
GP [dB]
‡7
ǵC [%]

10
(Q
<E#> ⁸
6
100
30
η C [%] _{1- 26}
80
<E#N>
22
60
18
4
40
14
10
2
20
6
0
8
0
12 17 21 25 28 30
1-<E#N>
G.)[
7$&7
*$2N"
5T


Fig 3. Power gain and collector efficiency v.s
load power (typical value)
2
0 4 8 12 16 20 24
1JO<E#N>
G.)[
7$&7
*$2N"
5T


Fig 4. Load power v.s input power (typical value)
Typical Large Signal Impedance
VCE = 4.8V, ICQ = 5mA, Pout = 28dBm
'SFR<.)[>
800
820
840
860
880
900
920
940
960
980
1000
Mag
0.615
0.631
0.65
0.666
0.682
0.698
0.711
0.724
0.735
0.746
0.760
Ǚsource
Ang
-162.5
-164.0
-165.9
-167.6
-169.5
-171.2
-172.7
-174.5
-175.9
-177.6
-179.3
Mag
0.460
0.478
0.494
0.509
0.524
0.538
0.550
0.563
0.578
0.593
0.600
Ǚload
Ang
161.4
159.6
158.0
156.2
154.0
151.9
150.0
147.3
145.0
142.8
140.3
www.tachyonics.co.kr
- 4/7 -
Sep-03-2002
2nd Edition