(VCC = 12.5 Vdc, Pout = 25 W, IC (MAX) = 3.6 Adc, f = 470 MHz)
Input Power
(VCC = 12.5 Vdc, Pout = 25 W, f = 470 MHz)
Collector Efficiency
(VCC = 12.5 Vdc, Pout = 25 W, IC (MAX) = 3.6 Adc, f = 470 MHz)
Output Mismatch Stress
(VCC = 16 Vdc, Pin = Note 1, f = 470 MHz,
VSWR = 20:1, All Phase Angles)
Series Equivalent Input Impedance
(VCC = 12.5 Vdc, Pout = 25 W, f = 470 MHz)
Series Equivalent Output Impedance
(VCC = 12.5 Vdc, Pout = 25 W, f = 470 MHz)
Gpe
Pin
η
ψ
*
No Degradation in Output Power
Zin
ZOL
—
—
1.2 + j3.3
1.9 + j2.1
—
—
Ohms
Ohms
6.2
—
55
7.0
5.0
60
—
6.0
—
dB
Watts
%
NOTE:
1. Pin = 150% of Drive Requirement for 25 W Output at 12.5 Vdc.
*
ψ
= Mismatch stress factor — the electrical criterion established to verify the device resistance to load mismatch failure. The mismatch stress
test is accomplished in the standard test fixture (Figure 1) terminated in a 20:1 minimum load mismatch at all phase angles.
RFC1
B
SOCKET
C11
B
C10
C12 C13
C14
L2
L1
C4
C6
Z5
Z1
Z2
Z3
Z4
D.U.T.
C7
C1
C2
C3
C5
C8
Z6
Z7
Z8
C9
Z9
C1, C2, C7, C8 — 1.0 – 20 pF Johanson Variable
C3 — 27 pF 100 mil ATC
C4 — 30 pF 100 mil ATC
C5, C6 — 33 pF 100 mil ATC
C9 — 250 pF 100 mil ATC
C10 — 100 pF UNELCO
C11, C14 — 1.0
µF
35 V TANTALUM
C12, C13 — 680 pF Feedthrough
L1 — 5″ #22 AWG 0.100″ ID
L2 — 5″ #20 AWG 0.187″ ID
RFC1 — Ferroxcube VK200–20–4B
B — Ferroxcube Bead 56–590–65–3B
Z1 — 0.25″ x 0.20″ Microstrip
Z2 — 1.63″ x 0.20″ Microstrip
Z3 — 0.20″ x 0.20″ Microstrip
Z4, Z5 — 1/2″ #18 AWG bent in a
Z4, Z5 —
“V” shape 1/8″ Wide
Z6 — 0.20″ x 0.20″ Microstrip
Z7 — 0.70″ x 0.20″ Microstrip
Z8 — 0.33″ x 0.20″ Microstrip
Z9 — 0.50″ x 0.20″ Microstrip
Board — 62.5 mil Glass Teflon,
ε
r = 2.55
Figure 1. Test Circuit Schematic
MRF644
2
MOTOROLA RF DEVICE DATA
40
Pout , POWER OUTPUT (WATTS)
Pout , POWER OUTPUT (WATTS)
f = 470 MHz
30
VCC = 13.6 V
12.5 V
20
40
Pin = 8 W
30
6W
20
10
10
VCC = 12.5 V
0
1
2
3
4
5
6
7
8
9
0
440
460
480
f, FREQUENCY (MHz)
500
520
Pin, POWER INPUT (WATTS)
Figure 2. Power Output versus Power Input
Figure 3. Power Output versus Frequency
40
Pout , POWER OUTPUT (WATTS)
f = 470 MHz
Pin = 6 W
20
Pout , minus Pin (WATTS)
30
40
f = 470 MHz
30
20
VCC = 13.6 V
12.5 V
10
10
0
4
6
8
10
12
14
16
18
20
0
1
2
3
4
5
6
7
8
9
VCC, SUPPLY VOLTAGE (VOLTS)
Pin, POWER INPUT (WATTS)
Figure 4. Power Output versus Supply Voltage
Figure 5. Power Saturation Profile
512
5.0
10
0
470
Zin
f = 450 MHz
5.0
10
f = 450 MHz
ZOL*
5.0
512
15
20
10
FREQUENCY
MHz
15
20
25
Zin
(OHMS)
ZOL*
(OHMS)
450
470
512
1.21 + j3.47 1.76 + j1.96
1.21 + j3.25 1.90 + j2.14
1.06 + j2.09 1.96 + j2.34
ZOL* = Conjugate of the optimum load impedance into which the device output
operates at a given output power, voltage and frequency.
Figure 6. Series Equivalent Input–Output Impedance
MOTOROLA RF DEVICE DATA
MRF644
3
PACKAGE DIMENSIONS
D
R
3
F
4
K
NOTES:
1. FLANGE IS ISOLATED IN ALL STYLES.
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
1
Q
2
L
B
J
E
N
H
A
U
STYLE 1:
PIN 1.
2.
3.
4.
C
DIM
A
B
C
D
E
F
H
J
K
L
N
Q
R
U
EMITTER
COLLECTOR
EMITTER
BASE
CASE 316–01
ISSUE D
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
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
not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in
systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of
the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such
unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless
against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part.
Motorola and
are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.
Literature Distribution Centers:
USA: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036.
EUROPE: Motorola Ltd.; European Literature Centre; 88 Tanners Drive, Blakelands, Milton Keynes, MK14 5BP, England.
JAPAN: Nippon Motorola Ltd.; 4-32-1, Nishi-Gotanda, Shinagawa-ku, Tokyo 141, Japan.
ASIA PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Center, No. 2 Dai King Street, Tai Po Industrial Estate, Tai Po, N.T., Hong Kong.
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