Datasheet SD2922 Datasheet (SGS Thomson Microelectronics)



HF/VHF/UHF N-CHANNEL MOSFETs

■ GOLDMETALLIZATION

■ EXCELLENTTHERMAL STABILITY

■ COMMONSOURCE CONFIGURATION

■ POUT = 300W MIN. WITH 12.5 dB GAIN

@175MHz

DESCRIPTION

The SD2922 is a gold metallizedN-Channel MOS
field-effect RF power transistor. The SD2922 is
intended for use in 50V dc large signal
applicationsup to 200 MHz

SD2922

RF POWER TRANSISTORS

M244

epoxy sealed

ORDER CODE BRANDING

SD2922 SD2922

PIN CONNECTION

1. Drain 3. Source

2. Gate

ABSOLUTE MAXIMUM RATINGS (T

Symb o l Para meter Val u e Uni t

V

(BR)DSS

V

V

P

T

Drain S our ce Vo lt age 125 V
Drain-Gate Voltage (RGS=1MΩ)

DGR

Gat e- Source Voltage ±20 V

GS

Drain C urr ent 40 A

I

D

Power Di ss ipation 500 W

DISS

Max. Operating Junction Te mperatur e +200

T

j

Sto rage Temperature -65 to 150

STG

case

=25oC)

125 V

THERMAL DATA

R

th(j-c)

R

th(c-s)

∗ Determined using a flat aluminumor copper heatsink with thermal compound applied (Dow Corning 340 or equivalent).

November 1999

Junct ion-Case Ther mal R esista nce 0.35
Case Heatsink Ther mal Resistance ∗

0.12

o
o

o

C/W

o

C/W

C
C

1/13

SD2922

ELECTRICAL SPECIFICATION (T

case

=25oC)

STATIC (per section)

Symbol Para met e r Mi n . Typ . Ma x. Unit

V

(BR)DSSVGS

I

DSS

I

GSS

V

GS(Q)

V

DS(on)VGS

gfs V

C

ISS

C

OSS

C

RSS

=0V IDS= 1 00 mA 125 V
VGS=0V VDS=50V 5 mA
VGS=20V VDS=0V 5 µA
VDS=10V ID=250mA 1 5 V

=10V ID=10A 3 V

=10V ID=5A 4 mho

DS

VGS=0V VDS= 5 0 V f = 1 MHz 411 pF
VGS=0V VDS= 5 0 V f = 1 MHz 198 pF
VGS=0V VDS=50V f=1MHz 27 pF

REF. 1021306E

DYNAMIC

Symbol Para met e r Mi n . Typ . Ma x. Unit

P

OUT

G

η

Load

Mismatch

f = 175 MHz VDD=50V IDQ= 5 00 mA 300 W
f = 175 MHz VDD=50V P

PS

f = 175 MHz VDD=50V P

D

f = 175 MHz V

DD

=50V P

=300W IDQ= 5 00 mA 12.5 15 dB

out

=300W IDQ= 5 00 mA 50 60 %

out

=300W IDQ=500mA

out

5:1 VSWR

All Phase Angles

IMPEDANCEDATA

Measured Gate to Gate and Drain toDrain, respectively.

FREQ. ZIN(Ω) ZDL(Ω)

175 MHz 0 .92 - j 0.14 3.17 + j 4.34

2/13

SD2922

MaximumThermal Resistancevs Case
Temperature

0.42

0.4

0.38

Rth(j-c)(ºC/W)

0.36

0.34
25 45 65 85

Tc,Case Temperature (°C)

Capacitancevs Drain-SourceVoltage

10000

1000

100

C, CAPACITANCE (pF)

10

0 102030405060

VDS, DRAIN-SOURCE VOLTAGE (VOLTS)

GC81240

Ciss

Coss

Crss

GC83360

DC Safe OperatingArea

100

50

30

20

(1)

10

5

Ids, DRAIN CURRENT (A)

3

2

1

1 2 5 10 20 50 100 200 500 1,000

Vds, DRAIN SOURCEVOLTAGE(V)

(1) Currentinthisareamaybelimited by RDS(on)
Twosides,each sectionequallyloaded

GC81900

Drain Current vs Gate Voltage

12

10

VDS = 10V

8

6

4

ID, DRAIN CURRENT (A)

2

0

1234567

Tc= 25°C

Tc= 80°C

Tc= -20°C

VGS GATE-SOURCE VOLTAGE (VOLTS)

GC81250

Gate Voltage vs Case Temperature

1.15

1.1

1.05

1

0.95

0.9

VGS, GATE-SOURCE VOLTAGE(Normalized)

0.85

-25 0 25 50 75 100

Tc, CASE TEMPERATURE (ºC)

Id= 0.25A

Id= 1A

Id = 2A

GC81260

Id= 5A

Id= 4A

Id= 0.1A

3/13

SD2922

TYPICALPERFORMANCE(175 MHz)

OutputPowervs Input Power

400

Vdd = 50V

300

200

100

Pout, OUTPUT POWER (W)

0

135791113

f=175MHz
IDQ = 500 mA

Pin, INPUT POWER (W)

GC81200

Vdd = 40V

OutputPowervs Supply Voltage

GC81220

Pin = 13W

Pin= 10W

Pin = 5W

Pout, OUTPUTPOWER (W)

400

300

200

100

IDQ = 500mA
f = 175MHz

OutputPower vsInput Power

400

300

200

100

Pout, OUTPUT POWER (W)

0

135791113

Pin, INPUT POWER (W)

Tc = -20°C

Tc =25°C

VDD= 50V
f =175MHz
IDQ= 500 mA

Tc=80°C

OutputPower vsGateVoltage

400

Tc= -20°C

VDD= 50 V
IDQ= 50 0mA
f = 175MHz
Pin = Constant

Tc= 80° C

Pout,OUTPUTPOWER (W)

300

Tc= 25° C

200

100

GC81210

GC812 30

0

25 30 35 40 45 50

VDD, SUPPLY VOLTAGE (VOLTS)

4/13

0

-4-3-2-101234

VGSGATE-SOURCEVOLTAGE(VOLTS)

175 MHz Test Circuit Schematic(Production Test Circuit)

SD2922

REF. 1022256B

5/13

SD2922

175 MHz Test CircuitComponentPart List

Compo nent Part Number Ven dor Description

R1/R2 CR2412-1W-471JB VENKEL 470 Ohm 1 W, Surface Mount Chip Resistor
R3/R4 DALE 360 Ohm 0.5 W, Carbon Comp. Axial Lead Resistor or Equiv.
R5/R6 CR2512-1W-471JB VENKEL 470 Ohm 1 W, Surface Mount Chip Resistor
R7/R8 RS 2B DALE 560 Ohm 2 W, Resistor Two Turn Wire Air-Wound Axial Lead

Resistor
R9/R10 534 - 1 -1 - 203 SPECTROL 20 KOhm 3.09 W, 10 Turn Wirewound Precision Potentiometer
C1/C4 ATC130B681KP50X ATC 680 pF ATC 130B Surface Mount Ceramic Chip Capacitor
C2/C7/C8
C17/C19
C20/C21
C3 ATC200B122MW50X ATC 10000 pF ATC 200B Surface Mount Ceramic Chip Capacitor
C5 ATC100B750KP500X ATC 75 pF ATC 100B Surface Mount Ceramic Chip Capacitor
C6 406 ARCO ST40 25 pF -115pF Miniature Variable Trimmer
C9/C10 ATC100B470KP500X ATC 47 pF ATC 100B Surface Mount Ceramic Chip Capacitor
C11-C12
C13
C14-C15
C24-C25
C16-C18 ATC700B471MP200X ATC 470 pF ATC 700B Surface Mount Ceramic Chip Capacitor
C22-C23 GRM43-4X7R104K500 MURATA 0.1 µF / 500V Surface Mount Ceramic Chip Capacitor
C26 C1812X7R501-103KNE VENKEL 0.01 µF/ 500V Surface Mount Ceramic Chip Capacitor
C27 GRM43-4X7R-104K500 MURATA 0.01 µF / 500V Surface Mount Ceramic Chip Capacitor
C28 SME63T10RM MARCON 10 µF / 63 V Aluminum Electrolytic Axial Lead Capacitor
B1 50 Ohm RG316, O.D. 0.076[1.93] L=11.80[299.72] Flexible

B2 83242 BELDEN 50 Ohm RG-142B O.D 0.165[4.19] L=11.80[299.72] Flexible

T1 R.F. Transformer 4:1, 25 Ohm RG316-25, O.D 0.080[2.03]

T2 UT141-25 MICRO

L1 83242 BELDEN Inductor λ 1/4 Wave 50 Ohm O.D. 0.165[4.19] L=11.80[299.72]

FB1 2643665802 FAIR-RITE

FB2 2843009902 FAIR-RITE
FB3 2518068007 FAIR-RITE

FB4 2743021447 FAIR-RITE

FB5 2643801002 FAIR-RITE

FB6 2843010402 FAIR-RITE

PCB G0600M1016QA ROGERS

ATC200B103MW50X ATC 10000 pF ATC 200B Surface Mount Ceramic Chip Capacitor

ATC100B430KP500X ATC 43 pF ATC 100B Surface Mount Ceramic Chip Capacitor
ATC700B122MW50X ATC 1200 pF ATC 700B Surface Mount Ceramic Chip Capacitor

Coaxial Cable 4 Turns thru Fair-rite Bead

Coaxial Cable

L=5.90[149.86] Flexible Coaxial Cable 2 Turns Thru Fair-rite

Multi-aperture Core

R.F. Transformer 1:4, 25 Ohm Semi-rigid Coaxial Cable O.D.

COAX

CORP

CORP

CORP
CORP

CORP

CORP
CORP

0.141[3.58] L=5.90[149.86]

Flexible Coaxial Cable 2 Turns Thru Fair-rite Bead

Shield Bead

Multi-aperture Core

Multilayer FerriteChip Bead (Surface Mount)

Surface Mount Emi Shield Bead

Shield Bead

Multi-aperture Core

Woven Glass Reinforced PTFE Microwave Laminate 0.06”, 1oz

EDCu, Both sides, ε

= 2.55

r

6/13

175 MHz Test Circuit Photomaster

SD2922

175 MHz Text Fixture

7/13

SD2922

TYPICALBROADBANDDATA (175 - 230 MHz)

Input Power vs Frequency

12

10

8

6

Pin,INPUT POWER (W)

4

2

170 180 190 200 210 220 230

Vdd=50V
Idq=600mA
Pout=250W

FREQUENCY (MHz)

GC81920

PowerGain vs Frequency

17

16

15

14

Gp, POWER GAIN (dB)

13

12

170 180 190 200 210 220 230

FREQUENCY (MHz)

Efficiency vs Frequency ReturnLoss vs Frequency

70

67.5

65

62.5

60

EFFICIENCY (%)

57.5

55

170 180 190 200 210 220 230

FREQUENCY (MHz)

Vdd=50V
Idq=600mA
Pout=250W

GC81940

-2

-4

-6

-8

-10
Vdd=50V

-12

Idq=600mA
Pout=250W

-14

-16

RTL, RETURN LOSS(dB)

-18

-20

170 180 190 200 210 220 230

FREQUENCY (MHz)

Vdd=50V
Idq=600mA
Pout=250W

GC81930

GC81950

1 dB Compression

15.5

Vdd=50V
Idq=600mA

14.5

13.5

Gp, POWER GAIN (dB)

12.5
0 100 200 300 400

Pout, OUTPUT POWER(W)

8/13

Freq=175MHz

GC81960

1 dB Compression

15.5

14.5

13.5

Gp, POWER GAIN (dB)

12.5
0 100 200 300 400

Pout, OUTPUT POWER (W)

GC81970

Vdd=50V
Idq=600mA
Freq=230MHz

175 - 230 MHz Circuit Layout (EngineeringFixture)

SD2922

175 -230 MHz Circuit LayoutComponent Part List

PCB 1/32” WovenFiberglass 0.030Cu, 2 sides, er =4.8
T1 50 OhmFlexibleCoax Cable OD 0.06”, 3” Long. Ferrite Core NEOSIDE
T2 / T3 9:1 Transformer,16.5 OhmFlexible Coax CableOD 0.1”, 3”Long
T4 / T5 4:1Transformer, 25 OhmFlexible Coax Cable OD 0.06”, 5”Long
C1 8.2 pF Ceramic Cap
C2/C3 100pF ChipCap
C4 2-18pF VariableCap
C5 47pF CeramicCap
C6 / C11 47 nF CeramicCap
C7 56pF ATCChip Cap
C8 / C9 / C13 470 pF ATCChip Cap
C10 100nF CeramicCap
C12 2x330nF / 500V Cap
C14 10 nF / 63V Electrolytic Cap
R1 / R3 47 OhmResistor
R2 6.8KOhm Chip Resistor
R4 4.7KOhm MultiTurnsTrimResistor
R5 8.2KOhm Resistor
R6 3.3KOhm / 5 W Resistor
D1 6.8 V ZenerDiode
L1 20 nH Inductor
L2 70 nH Inductor
L3 30 nH Inductor
L4 10 nH Inductor
L5 15 nH Inductor

9/13

SD2922

TYPICALBROADBANDDATA (88 - 108 MHz)

Input Power vs Frequency

7

6

5

4

3

Pin, INPUT POWER(W)

2

1

85 90 95 100 105 110

Vdd=50V
Idq=400mA
Pout=300W

FREQUENCY (MHz)

GC81980

PowerGain vs Frequency

22
21
20
19
18
17
16
15

Gp, POWER GAIN (dB)

14
13
12

85 90 95 100 105 110

Vdd=50V
Idq=400mA
Pout=300W

FREQUENCY (MHz)

Efficiency vs Frequency ReturnLoss vs Frequency

70

67

64

61

EFFICIENCY (%)

58

55

85 90 95 100 105 110

Vdd=50V
Idq=400mA
Pout=300W

FREQUENCY (MHz)

GC82000

-2

-4

-6

-8

-10

-12

-14

-16

RTL, RETURN LOSS (dB)

-18

-20
85 90 95 100 105 110

FREQUENCY (MHz)

Vdd=50V
Idq=400mA
Pout=300W

GC81990

GC82010

10/13

88 - 108 MHz Circuit Layout (EngineeringFixture)

SD2922

88 -108 MHz Circuit Layout ComponentPart List

PCB 1/32” Woven Fiberglass 0.030 Cu, 2 sides, er =4.8
T1 50 Ohm Flexible Coax Cable OD 0.06”, 5” Long
T2 / T3 9:1 Transformer, 25 Ohm Flexible Coax Cable OD 0.1”, 3.9”. Ferrite Core NEOSIDE
T4 / T5 4:1Transformer, 25 Ohm Flexible Coax Cable OD 0.1”, 5” Long
T6 50 Ohm Flexible Coax Cable OD 0.1”, 5” Long
FB1 VK200
C1 10 pF Ceramic Cap
C2 / C3 / C4 / C7 / C8 1 nF Chip Cap
C5 / C6 1 nF ATC chip Cap
C9 470 pF ATC Chip Cap
C10 100 nF Chip Cap
C11 100 uF / 63 V Electrolytic Cap
R1 56 Ohm Resistor
R2/R4 10 Ohm Chip Resistor
R3 10K Ohm Resistor
R5 5.6K Ohm Resistor
R6 10K Ohm, 10 Turn Trim Resistor
R7 3.3K Ohm / 5 W Resistor
R8 15 Ohm / 1 W Resistor
D1 6.8 VZener Diode
L1 10 nH Inductor
L2 40 nH Inductor
L3 70 nH Inductor

11/13

SD2922

M244 (.400 x .860 4/L BAL N/HERM W/FLG) MECHANICALDATA

DIM.

MIN. TYP. MAX. MIN. TYP. MAX.

A 5.59 5.84 0.220 0.230
B 5.33 0.210
C 3.05 3.30 0.120 0.130
D 9.65 9.91 0.380 0.390
E 19.81 20.83 0.780 0.820
F 11.05 0.435
G 27.94 1.100
H 33.91 34.16 1.335 1.345

I 0.08 0.18 0.003 0.007

J 1.52 1.78 0.060 0.070

K 2.54 2.92 0.100 0.115

L 5.84 0.230
M 10.03 10.34 0.395 0.407
N 21.59 22.10 0.850 0.870

mm inch

12/13

Note: Controllingdimension in Inches

1020876A

SD2922

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13/13