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GaAs FET
CFY 35
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Datasheet
* Low noise * High gain * For low-noise front end amplifiers * For DBS down converters
ESD:
Electrostatic discharge sensitive device, observe handling precautions!
Type
Marking
Ordering code (tape and reel)
Pin Configuration 1 2 3 4
Package 1)
CFY 35-20 CFY 35-23
NA NB
Q62702-F1393 Q62702-F1394
S
D
S
G
MW-4
Maximum ratings Drain-source voltage Drain-gate voltage Gate-source voltage Drain current Channel temperature Storage temperature range Total power dissipation (TS < 53C) 2) Thermal resistance Channel-soldering point 2)
Symbol
Value 5 6 -4 ... 0 60 150 -40...+150 180
Unit V V V mA C C mW
VDS VDG VGS ID TCh Tstg Ptot
RthChS
540
K/W
1) Dimensions see chapter Package Outlines 2) TS is measured on the source 1 lead at the soldering point to the PCB.
Siemens Aktiengesellschaft
pg. 1/4
13.02.1996 HL EH PD 21
GaAs FET
Electrical characteristics at TA = 25C, unless otherwise specified
CFY 35
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Characteristics Drain-source saturation current
V = 2.5 V,
DS
Symbol
min
typ
max
Unit mA
V =0V
GS
IDSS VGS(P) gm IG F
10 -0.2
25
45 V
Pinch-off voltage
V = 2.5 V
DS
I = 1 mA
D
-1.2
-2.5 mS
Transconductance
V = 2.5 V
DS
I = 10 mA
D
20
30
A
Gate leakage current
V = 2.5 V
DS
I = 10 mA
D
-
0.1
2 dB
Noise figure
V = 2.5 V
DS
I = 10 mA
D
f = 12 GHz CFY 35-20 CFY 35-23
-
1.9 2.2
2.0 2.3 dB
Associated gain
V = 2.5 V
DS
Ga
f = 12 GHz
I = 10 mA
D
8
8.5
-
Typical Common Source Noise Parameters
ID = 10 mA f GHz 2 4 6 8 10 12 14 Fmin dB 0.60 0.83 1.10 1.38 1.64 1.90 2.15 Ga dB 17.6 14.2 11.8 10.5 9.4 8.5 7.9 opt MAG 0.82 0.73 0.65 0.60 0.58 0.61 0.62 ANG 32 65 105 146 -177 -139 -110 VDS = 2.5 V Rn 35 25 14 5.5 3 10 26 rn - 0.7 0.5 0.28 0.11 0.06 0.2 0.52 N 0.08 0.11 0.14 0.19 0.22 0.28 0.33 Z0 = 50 F50 dB 2.35 2.30 2.35 2.55 2.80 3.50 3.95 G(F50 ) dB 12.9 11.2 9.5 7.8 6.5 4.9 3.8
Siemens Aktiengesellschaft
pg. 2/4
13.02.1996 HL EH PD 21
GaAs FET
CFY 35
________________________________________________________________________________________________________
Total Power Dissipation Ptot = f (TS;TA)
* package mounted on alumina 200 180 P [ mW ] tot 160 140 120 100 80 60 40 20 0 0 50 100 TA ; TS [ C ] TA TS
Siemens Aktiengesellschaft
pg. 3/4
13.02.1996 HL EH PD 21
GaAs FET
Typical Common Source S-Parameters
ID = 10 mA
f GHz 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 Mag 0.99 0.98 0.97 0.95 0.93 0.91 0.89 0.87 0.85 0.82 0.79 0.77 0.75 0.74 0.73 0.72 0.71 0.70 0.70 0.70 0.70 0.70 0.70 0.70 0.72 0.73 0.74 0.75 0.76 0.77 0.78 0.80 0.82 0.82 0.82 0.82 S11 Ang -9.3 -19.1 -29.2 -39.8 -50.5 -60.8 -70.9 -81.2 -91.9 -103.2 -114.9 -126.2 -136.8 -146.7 -155.7 -164.1 -172.1 180.0 172.1 163.8 155.0 146.3 138.1 130.9 124.9 118.8 112.3 106.0 100.0 94.3 89.3 85.3 81.4 77.4 72.5 69.9 Mag 2.930 2.938 2.948 2.936 2.904 2.859 2.818 2.791 2.770 2.736 2.672 2.586 2.489 2.392 2.299 2.211 2.133 2.065 2.007 1.960 1.907 1.837 1.751 1.664 1.589 1.526 1.462 1.399 1.339 1.275 1.209 1.156 1.113 1.073 1.036 1.010
CFY 35
Z0 = 50
S12 S22 Ang 82.6 75.9 67.8 60.3 52.7 45.7 39.0 32.6 26.1 18.9 11.8 5.3 -0.9 -6.5 -11.3 -15.5 -19.1 -22.4 -25.2 -27.3 -29.5 -31.7 -33.2 -33.2 -32.3 -31.1 -30.5 -31.3 -32.0 -32.6 -33.2 -34.1 -35.6 -37.9 -40.6 -41.2 Mag 0.76 0.76 0.75 0.73 0.71 0.69 0.67 0.64 0.61 0.58 0.54 0.51 0.48 0.46 0.45 0.44 0.42 0.41 0.39 0.37 0.36 0.36 0.36 0.37 0.39 0.41 0.43 0.44 0.46 0.47 0.49 0.52 0.55 0.57 0.58 0.58 Ang -6.1 -12.6 -19.4 -26.5 -33.5 -40.0 -46.2 -52.5 -59.1 -66.5 -74.6 -83.0 -91.6 -100.0 -107.8 -114.9 -121.7 -128.8 -136.7 -146.1 -157.2 -169.1 179.0 168.0 158.6 150.2 142.3 134.1 125.7 116.8 108.3 101.3 95.5 90.1 84.1 80.3 13.02.1996 HL EH PD 21 Mag
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VDS = 2.5 V
S21 Ang 170.9 161.8 152.4 142.7 133.0 123.7 114.8 105.9 96.7 87.1 77.4 68.0 59.0 50.4 42.1 34.2 26.7 19.3 12.1 4.5 -3.6 -11.9 -19.8 -26.9 -33.5 -40.2 -47.1 -54.0 -60.7 -67.1 -73.2 -78.7 -84.3 -90.1 -96.0 -99.4 pg. 4/4
0.014 0.026 0.039 0.051 0.062 0.072 0.082 0.090 0.098 0.104 0.108 0.111 0.111 0.110 0.108 0.106 0.104 0.101 0.099 0.096 0.094 0.092 0.088 0.085 0.084 0.085 0.086 0.089 0.093 0.096 0.099 0.103 0.107 0.114 0.120 0.129
Siemens Aktiengesellschaft

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