MOTOROLA MRF325

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by MRF325/D
SEMICONDUCTOR TECHNICAL DATA
The RF Line
. . . designed primarily for wideband large–signal output and driver amplifier
stages in 100 to 500 MHz frequency range.
• Specified 28 Volt, 400 MHz Characteristics —
Output Power = 30 Watts
Minimum Gain = 8.5 dB
Efficiency = 54% (Min)
30 W, 225 to 400 MHz
CONTROLLED “Q”
BROADBAND RF POWER
TRANSISTOR
NPN SILICON
• Built–In Matching Network for Broadband Operation Using Internal Matching Techniques
• 100% Tested for Load Mismatch at all Phase Angles with 30:1 VSWR
• Gold Metallization for High Reliability Applications
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Collector–Emitter Voltage
VCEO
33
Vdc
Collector–Base Voltage
VCBO
60
Vdc
Emitter–Base Voltage
VEBO
4.0
Vdc
Collector Current — Continuous
Collector Current — Peak
IC
3.4
4.5
Adc
Total Device Dissipation @ TC = 25°C (1)
Derate above 25°C
PD
82
0.47
Watts
W/°C
Storage Temperature Range
Tstg
– 65 to +150
°C
CASE 316–01, STYLE 1
THERMAL CHARACTERISTICS
Characteristic
Thermal Resistance, Junction to Case
Symbol
Max
Unit
RθJC
2.13
°C/W
ELECTRICAL CHARACTERISTICS (TC = 25°C unless otherwise noted.)
Symbol
Min
Typ
Max
Unit
Collector–Emitter Breakdown Voltage
(IC = 30 mAdc, IB = 0)
V(BR)CEO
33
—
—
Vdc
Collector–Emitter Breakdown Voltage
(IC = 30 mAdc, VBE = 0)
V(BR)CES
60
—
—
Vdc
Emitter–Base Breakdown Voltage
(IE = 3.0 mAdc, IC = 0)
V(BR)EBO
4.0
—
—
Vdc
Collector–Base Breakdown Voltage
(IC = 30 mAdc, IE = 0)
V(BR)CBO
60
—
—
Vdc
ICBO
—
—
3.0
mAdc
hFE
20
—
80
—
Characteristic
OFF CHARACTERISTICS
Collector Cutoff Current
(VCB = 30 Vdc, IE = 0)
ON CHARACTERISTICS
DC Current Gain
(IC = 1.5 Adc, VCE = 5.0 Vdc)
NOTE:
(continued)
1. This device is designed for RF operation. The total device dissipation rating applies only when the device is operated as an RF amplifier.
RF DEVICE DATA
MOTOROLA
Motorola, Inc. 1994
MRF325
2–1
ELECTRICAL CHARACTERISTICS — continued (TC = 25°C unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
Cob
—
30
40
pF
Common–Emitter Amplifier Power Gain
(VCC = 28 Vdc, Pout = 30 W, f = 400 MHz)
GPE
8.5
9.5
—
dB
Collector Efficiency
(VCC = 28 Vdc, Pout = 30 W, f = 400 MHz)
η
50
60
—
%
Load Mismatch
(VCC = 28 Vdc, Pout = 30 W, f = 400 MHz,
VSWR = 30:1 all angles)
ψ
DYNAMIC CHARACTERISTICS
Output Capacitance
(VCB = 28 Vdc, IE = 0, f = 1.0 MHz)
FUNCTIONAL TESTS (Figure 1)
No Degradation in Output Power
L3
C11
C14
+
+
C10
C12
–
L1
C13
+V
CC
28 Vdc
–
L2
C8
DUT
RF
OUTPUT
Z3
C2
RF
INPUT
Z1
Z2
C6
C1
C3
C4
C7
C9
C5
C1, C9 — 1.0 – 10 pF Johanson Capacitor (JMC 5201)
C2, C3, C6, C7 — 1.0– 20 pF Johanson Capacitor (JMC 5501)
C4, C5 — 36 pF ATC 100–mil Chip Capacitor
C8 — 100 pF UNELCO
C10, C13 — 1.0 µF 50 V Tantalum
C11, C14 — 680 pF Feedthru
C12 — 0.1 µF Erie Redcap
L1 — 8 Turns #26 AWG Enameled, 1/16″ ID Closewound
L1 — with Ferroxcube Bead (#56–590–65/4B) on Ground End
L2 — 14 Turns, #22 AWG Enameled, Closewound on a 470 Ω,
L2 — 2.0 Watt Resistor with Ferroxcube Bead (#56–590–65/4B)
L2 — on Cold End of L2
L3 — Ferroxcube VK200–19/4B Ferrite Choke
Z1 — Microstrip 0.19″ W x 0.88″ L
Z2 — Microstrip 0.28″ W x 1.0″ L
Z3 — Microstrip 0.31″ W x 1.25″ L
Board — Glass Teflon εr = 2.56, t = 0.062″
Input/Output Connectors — Type N
DUT Socket Lead Frame Etched from 80–mil–Thick Copper
Figure 1. 400 MHz Test Circuit
MRF325
2–2
MOTOROLA RF DEVICE DATA
Pout , OUTPUT POWER (WATTS)
50
40
f = 225 MHz
30
400 MHz
20
10
VCC = 28 Vdc
0
1
0
2
3
4
5
Pin, INPUT POWER (WATTS)
Figure 2. Output Power versus Input Power
50
Pin = 1.7 W
40
30
1W
20
0.6 W
10
Pout , OUTPUT POWER (WATTS)
Pout , OUTPUT POWER (WATTS)
50
40
Pin = 4 W
30
3W
20
2W
10
f = 225 MHz
0
10
14
18
22
26
f = 400 MHz
30
0
10
14
18
22
26
30
VCC, SUPPLY VOLTAGE (VOLTS)
VCC, SUPPLY VOLTAGE (VOLTS)
Figure 3. Output Power versus Supply Voltage
Figure 4. Output Power versus Supply Voltage
MOTOROLA RF DEVICE DATA
MRF325
2–3
0
–5
5
f = 225 MHz
Zin
– 10
ZOL*
f = 225 MHz
400
10
5
400
Pout = 30 W, VCC = 28 V
10
f
MHz
Zin
Ohms
ZOL*
Ohms
225
400
0.4 + j1.6
1.0 + j3.9
4.9 – j5.5
5.5 – j2.4
ZOL* = Conjugate of the optimum load impedance into which the device output operates at a given output power,
ZOL* = voltage and frequency.
Figure 5. Series Equivalent Impedance
MRF325
2–4
MOTOROLA RF DEVICE DATA
PACKAGE DIMENSIONS
F
D
4
R
NOTES:
1. FLANGE IS ISOLATED IN ALL STYLES.
K
3
DIM
A
B
C
D
E
F
H
J
K
L
N
Q
R
U
1
Q
2
L
B
J
C
E
N
INCHES
MIN
MAX
24.38
25.14
12.45
12.95
5.97
7.62
5.33
5.58
2.16
3.04
5.08
5.33
18.29
18.54
0.10
0.15
10.29
11.17
3.81
4.06
3.81
4.31
2.92
3.30
3.05
3.30
11.94
12.57
MILLIMETERS
MIN
MAX
0.960
0.990
0.490
0.510
0.235
0.300
0.210
0.220
0.085
0.120
0.200
0.210
0.720
0.730
0.004
0.006
0.405
0.440
0.150
0.160
0.150
0.170
0.115
0.130
0.120
0.130
0.470
0.495
H
A
U
STYLE 1:
PIN 1.
2.
3.
4.
EMITTER
COLLECTOR
EMITTER
BASE
CASE 316–01
ISSUE D
MOTOROLA RF DEVICE DATA
MRF325
2–5
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the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit,
and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different
applications. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does
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associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part.
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MRF325
2–6
◊
*MRF325/D*
MRF325/D
MOTOROLA RF DEVICE
DATA