D1024UK
Document Number 3037
Issue 3
Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk
Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed
to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use.
Semelab encourages customers to verify that datasheets are current before placing orders.
PDPower Dissipation
BVDSS Drain – Source Breakdown Voltage *
BVGSS Gate – Source Breakdown Voltage *
ID(sat) Drain Current *
Tstg Storage Temperature
TjMaximum Operating Junction Temperature
100W
70V
±20V
5A
–65 to 150°C
200°C
MECHANICAL DATA GOLD METALLISED
MULTI-PURPOSE SILICON
DMOS RF FET
40W – 28V – 500MHz
PUSH–PULL
FEATURES
• SIMPLIFIED AMPLIFIER DESIGN
• SUITABLE FOR BROAD BAND
APPLICATIONS
•LOW C
rss
• USEFUL POat 1 GHz
• LOW NOISE
• HIGH GAIN – 13 dB MINIMUM
ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated)
APPLICATIONS
•HF/VHF/UHF COMMUNICATIONS
from 1 MHz to 500 MHz
METAL GATE RF SILICON FET
TetraFET
* Per Side
A
B
G
O
I
E
(2 pl s)
F
J
Typ.
K
N
Q
M
D
C
PH
1324
8675
DD
PIN 1 SOURCE (COMMON)
PIN 3 DRAIN 2
PIN 5 SOURCE (COMMON)
PIN 7 GATE 1
PIN 2 DRAIN 1
PIN 4 SOURCE (COMMON)
PIN 6 GATE 2
PIN 8 SOURCE (COMMON)
DIM mm Tol. Inches Tol.
A 9.14 0.13 0.360 0.005
B 12.70 0.13 0.500 0.005
C 45° 5° 45° 5°
D 6.86 0.13 0.270 0.005
E 0.76 0.13 0.030 0.005
F 9.78 0.13 0.385 0.005
G 19.05 0.25 0.750 0.010
H 4.19 0.13 0.165 0.005
I 3.17 0.13 0.125 0.005
J 1.52R 0.13 0.060R 0.005
K 1.65R 0.13 0.065R 0.005
M 16.51 0.13 0.650 0.005
N 22.86 0.13 0.900 0.005
O 0.13 0.02 0.005 0.001
P 6.35 0.64 0.250 0.025
Q 10.77 0.13 0.424 0.005
ROHS COMPLIANT
Parameter Test Conditions Min. Typ. Max. Unit
D1024UK
Document Number 3037
Issue 3
Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk
Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed
to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use.
Semelab encourages customers to verify that datasheets are current before placing orders.
70
1
1
17
0.8
13
50
20:1
60
30
2.5
VGS = 0 ID= 100mA
VDS = 28V VGS = 0
VGS = 20V VDS = 0
ID= 10mA VDS = VGS
VDS = 10V ID= 1A
PO= 40W
VDS = 28V IDQ = 0.4A
f = 400MHz
VDS = 28V VGS = –5V f = 1MHz
VDS = 28V VGS = 0 f = 1MHz
VDS = 28V VGS = 0 f = 1MHz
V
mA
μA
V
S
dB
%
—
pF
pF
pF
ELECTRICAL CHARACTERISTICS (Tcase = 25°C unless otherwise stated)
Drain–Source
BVDSS Breakdown Voltage
Zero Gate Voltage
IDSS Drain Current
IGSS Gate Leakage Current
VGS(th) Gate Threshold Voltage *
gfs Forward Transconductance *
GPS Common Source Power Gain
ηDrain Efficiency
VSWR Load Mismatch Tolerance
Ciss Input Capacitance
Coss Output Capacitance
Crss Reverse Transfer Capacitance
HAZARDOUS MATERIAL WARNING
The ceramic portion of the device between leads and metal flange is beryllium oxide. Beryllium oxide dust is highly
toxic and care must be taken during handling and mounting to avoid damage to this area.
THESE DEVICES MUST NEVER BE THROWN AWAY WITH GENERAL INDUSTRIAL OR DOMESTIC WASTE.
RTHj–case Thermal Resistance Junction – Case Max. 1.75°C / W
THERMAL DATA
* Pulse Test: Pulse Duration = 300 μs , Duty Cycle ≤2%
TOTAL DEVICE
PER SIDE
PER SIDE
D1024UK
Document Number 3037
Issue 3
Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk
Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed
to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use.
Semelab encourages customers to verify that datasheets are current before placing orders.
Figure 1
Power Output and efficiency vs. Power Input.
Figure 2
Power Output and Gain vs. Power Input.
Figure 3
IMD Vs. Output Power.
OPTIMUM SOURCE AND LOAD IMPEDANCE
Frequency ZSZL
MHz ΩΩΩΩ
400MHZ 10.7 - j35.4 13.8 - j22.2
0 2 4 6 8 1 0 1 2
P i n W
0
1 0
2 0
3 0
4 0
5 0
6 0
P o u t
W
2 0
3 0
4 0
5 0
6 0
7 0
8 0
D r a i n E f f i c i e n c y
%
P o u t
D r a i n E f f i c i e n c y
f = 4 0 0 M H z
I d q = 0 . 4 A
V d s = 2 8 V
0 2 4 6 8 1 0 1 2
P i n W
0
1 0
2 0
3 0
4 0
5 0
6 0
P o u t
W
6
8
1 0
1 2
1 4
1 6
1 8
G a i n
d B
P o u t
G a i n
f = 4 0 0 M H z
I d q = 0 . 4 A
V d s = 2 8 V
0 10 20 30 40 50 60
P o u t W P E P
- 6 0
- 5 0
- 4 0
- 3 0
- 2 0
- 1 0
0
I M D 3
d B c
I M D 3
f 1 = 4 0 0 M H z
f 2 = 4 0 0 . 1 M H z
I d q = 0 . 4 A
V d s = 2 8 V
!Freq S11 S21 S12 S22
!MHz mag ang mag ang mag ang mag ang
100 0.767 -135 22.646 88 0.0155 9 0.531 -103
200 0.813 -153 10.116 57 0.0099 4 0.692 -131
300 0.841 -161 5.623 39 0.0076 49 0.794 -143
400 0.861 -169 3.548 25 0.0130 79 0.841 -151
500 0.882 -175 2.820 20 0.0210 78 0.875 -156
600 0.902 180 2.093 14 0.0285 78 0.910 -161
700 0.923 174 1.365 9 0.0376 77 0.944 -166
800 0.912 170 1.096 2 0.0457 66 0.944 -170
900 0.923 164 0.902 -3 0.0484 66 0.933 -176
1000 0.923 161 0.724 -4 0.0596 64 0.944 -177
!V
DS = 28V, IDQ = 1A
# MHZ S MA R 50
Typical S Parameters
D1024UK
Document Number 3037
Issue 3
Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk
Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed
to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use.
Semelab encourages customers to verify that datasheets are current before placing orders.
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
0.00 5.00 10.00 15.00 20.00 25.00 30.00 35.00
VDS (V)
IDS (A)
Vg=13 V
Vg=12 V
Vg=11 V
Vg=10 V
Vg=9V
Vg=8 V
Vg=7 V
Vg=6 V
Vg=5 V
1
10
100
0 5 10 15 20 25 30
Vds V
Capacitance pF
Output capacitance
Input Capacitance
Reverse transfer capacitance
Figure 4 – Typical IV Characteristics.
Figure 5 – Typical CV Characteristics.
D1024UK
Document Number 3037
Issue 3
Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk
Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed
to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use.
Semelab encourages customers to verify that datasheets are current before placing orders.
D1024UK
D1024UK
INPUT
BIAS
T2
T3
T1
2-18pF
10K
30pF
10K 620pF
620pF
100nF
L1
L2
OUTPUT
1-3.5pF
620pF
620pF
30pF
100nF
10uF
+28V
39
2-18pF
T4
T5
T6
T7
T8
T9
T10
D1024UK TEST FIXTURE
Substrate 1.6mm FR4
All microstrip lines W = 2.5mm
T1 45mm 50 OHM UT34 semi-rigid coax
T2, T3 55mm 50 OHM UT 34 semi-rigid coax
T4, T5 25mm microstrip line
T6, T7 10mm microstrip line
T8, T9 45mm 25 OHM UT 34-25 semi-rigid coax
T10 60mm 50OHM UT34 semi-rigid coax
L1 4 turns 19swg enamelled copper wire, 7mm i.d.
L2 2.5 turns of 19swg enamelled copper wire on T50-6 ferrite toroid
