MOTOROLA MRF284

Order this document
by MRF284/D
SEMICONDUCTOR TECHNICAL DATA
The RF Sub–Micron MOSFET Line
N–Channel Enhancement–Mode Lateral MOSFETs
Designed for PCN and PCS base station applications at frequencies from
1000 to 2600 MHz. Suitable for FM, TDMA, CDMA, and multicarrier amplifier
applications. To be used in class A and class AB for PCN–PCS/cellular radio
and wireless local loop.
• Specified Two–Tone Performance @ 2000 MHz, 26 Volts
Output Power = 30 Watts (PEP)
Power Gain = 9 dB
Efficiency = 30%
Intermodulation Distortion = –29 dBc
• Typical Single–Tone Performance at 2000 MHz, 26 Volts
Output Power = 30 Watts (CW)
Power Gain = 9.5 dB
Efficiency = 45%
• Characterized with Series Equivalent Large–Signal Impedance Parameters
• S–Parameter Characterization at High Bias Levels
• Excellent Thermal Stability
• Capable of Handling 10:1 VSWR, @ 26 Vdc, 2000 MHz, 30 Watts (CW)
Output Power
30 W, 2000 MHz, 26 V
LATERAL N–CHANNEL
BROADBAND
RF POWER MOSFETs
CASE 360B–01, STYLE 1
(MRF284)
CASE 360C–03, STYLE 1
(MRF284S)
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Drain–Source Voltage
VDSS
65
Vdc
Gate–Source Voltage
VGS
± 20
Vdc
Total Device Dissipation @ TC = 25°C
Derate above 25°C
PD
87.5
0.5
Watts
W/°C
Storage Temperature Range
Tstg
– 65 to +150
°C
TJ
200
°C
Symbol
Max
Unit
RθJC
2.0
°C/W
Operating Junction Temperature
THERMAL CHARACTERISTICS
Characteristic
Thermal Resistance, Junction to Case
ELECTRICAL CHARACTERISTICS (TC = 25°C unless otherwise noted)
Symbol
Min
Typ
Max
Unit
V(BR)DSS
65
—
—
Vdc
Zero Gate Voltage Drain Current
(VDS = 20 Vdc, VGS = 0)
IDSS
—
—
1.0
µAdc
Gate–Source Leakage Current
(VGS = 20 Vdc, VDS = 0)
IGSS
—
—
10
µAdc
Characteristic
OFF CHARACTERISTICS
Drain–Source Breakdown Voltage
(VGS = 0, ID = 10 µAdc)
NOTE – CAUTION – MOS devices are susceptible to damage from electrostatic charge. Reasonable precautions in handling and
packaging MOS devices should be observed.
REV 3
RF DEVICE DATA
MOTOROLA
Motorola, Inc. 1997
MRF284 MRF284S
1
ELECTRICAL CHARACTERISTICS (TC = 25°C unless otherwise noted)
Characteristic
Symbol
Min
Typ
Max
Unit
Gate Threshold Voltage
(VDS = 10 Vdc, ID = 150 µAdc)
VGS(th)
2.0
3.0
4.0
Vdc
Gate Quiescent Voltage
(VDS = 26 Vdc, ID = 200 mAdc)
VGS(q)
3.0
4.0
5.0
Vdc
Drain–Source On–Voltage
(VGS = 10 Vdc, ID = 1.0 Adc)
VDS(on)
—
0.3
0.6
Vdc
Forward Transconductance
(VDS = 10 Vdc, ID = 1.0 Adc)
gfs
1.0
1.5
—
S
Input Capacitance
(VDS = 26 Vdc, VGS = 0, f = 1.0 MHz)
Ciss
—
43
—
pF
Output Capacitance
(VDS = 26 Vdc, VGS = 0, f = 1.0 MHz)
Coss
—
23
—
pF
Reverse Transfer Capacitance
(VDS = 26 Vdc, VGS = 0, f = 1.0 MHz)
Crss
—
1.4
—
pF
Common–Source Power Gain
(VDD = 26 Vdc, Pout = 30 W, IDQ = 200 mA,
f1 = 2000.0 MHz, f2 = 2000.1 MHz)
Gps
9
10.5
—
dB
Drain Efficiency
(VDD = 26 Vdc, Pout = 30 W, IDQ = 200 mA,
f1 = 2000.0 MHz, f2 = 2000.1 MHz)
η
30
35
—
%
Intermodulation Distortion
(VDD = 26 Vdc, Pout = 30 W, IDQ = 200 mA,
f1 = 2000.0 MHz, f2 = 2000.1 MHz)
IMD
—
–32
–29
dBc
Input Return Loss
(VDD = 26 Vdc, Pout = 30 W, IDQ = 200 mA,
f1 = 2000.0 MHz, f2 = 2000.1 MHz)
IRL
9
15
—
dB
Common–Source Amplifier Power Gain
(VDD = 26 Vdc, Pout = 30 W PEP, IDQ = 200 mA,
f1 = 1930.0 MHz, f2 = 1930.1 MHz)
Gps
9
10.4
—
dB
Drain Efficiency
(VDD = 26 Vdc, Pout = 30 W PEP, IDQ = 200 mA,
f1 = 1930.0 MHz, f2 = 1930.1 MHz)
η
—
35
—
%
Intermodulation Distortion
(VDD = 26 Vdc, Pout = 30 W PEP, IDQ = 200 mA,
f1 = 1930.0 MHz, f2 = 1930.1 MHz)
IMD
—
–34
—
dBc
Input Return Loss
(VDD = 26 Vdc, Pout = 30 W PEP, IDQ = 200 mA,
f1 = 1930.0 MHz, f2 = 1930.1 MHz)
IRL
9
15
—
dB
Common–Source Amplifier Power Gain
(VDD = 26 Vdc, Pout = 30 W CW, IDQ = 200 mA,
f1 = 2000.0 MHz)
Gps
8.5
9.5
—
dB
Drain Efficiency
(VDD = 26 Vdc, Pout = 30 W CW, IDQ = 200 mA,
f1 = 2000.0 MHz)
η
35
45
—
%
Output Mismatch Stress
(VDD = 26 Vdc, Pout = 30 W CW, IDQ = 200 mA,
f1 = 2000.0 MHz, VSWR = 10:1,
at All Phase Angles)
Ψ
ON CHARACTERISTICS
DYNAMIC CHARACTERISTICS
FUNCTIONAL TESTS (in Motorola Test Fixture)
MRF284 MRF284S
2
No Degradation In Output Power
MOTOROLA RF DEVICE DATA
VGG(BIAS)
+
B1
B2
B3
C1 R1
C4 R2
C7 R3
B5
B6
R4 C12
R5 C14
R6 C17
+
C5
C8
C13 C15
VDD(DCSupply)
+
+
B4
–
L3
L1
RF
INPUT
Z1
L2
Z2
Z3
Z4
Z5
Z6
Z9
Z7
Z8
Z10
Z11
_
L4
Z12
Z13
DUT
Z14
Z15
RF
OUTPUT
C16
C10
C11
C6
C2
B1 – B6
C1, C17
C2
C3, C9
C4, C14
C5, C15
C6, C16
C7, C12
C8, C13
C10
C11
L1
L2, L3
L4
R1 – R6
Z1
Z2
C3
C9
Ferrite Bead, Round
470 µF, 63 V, Mallory Electrolytic Capacitor
0.6 – 4.5 pF Johansen Gigatrim Variable Capacitors
0.8 – 8.0 pF Johansen Gigatrim Variable Capacitors
0.1 µF Chip Capacitor, KEMET
91 pF ATC RF Chip Capacitors, Case “B”
10 pF ATC RF Chip Capacitors, Case “B”
1000 pF ATC RF Chip Capacitors, Case “B”
5.1 pF ATC RF Chip Capacitors, Case “B”
2.7 pF ATC RF Chip Capacitors, Case “B”
0.4 – 2.5 pF Johansen Gigatrim Variable Capacitors
4 Turns, #27 AWG, 0.087″ OD, 0.050″ ID, 0.069″ Long, 10 nH
9 Turns, #26 AWG, 0.080″ OD, 0.046″ ID, 0.170″ Long, 30.8 nH
2 Turns, #24 AWG, 0.85″ OD, 0.042″ ID, 0.064″ Long, 5.2 nH
12 Ω Fixed Film Chip Resistor 0.08″ x 0.13″
0.145″ x 0.080″ Microstrip
0.680″ x 0.080″ Microstrip
Z3
Z4
Z5
Z6
Z7
Z8
Z9
Z10
Z11
Z12
Z13
Z14
Z15
Board
0.185″ x 0.080″ Microstrip
0.395″ x 0.080″ Microstrip
0.490″ x 0.080″ Microstrip
0.035″ x 0.325″ Microstrip
0.240″ x 0.325″ Microstrip
0.210″ x 0.515″ Microstrip
0.130″ x 0.515″ Microstrip
0.080″ x 0.515″ Microstrip
0.190″ x 0.325″ Microstrip
0.090″ x 0.325″ Microstrip
0.515″ x 0.080″ Microstrip
0.860″ x 0.080″ Microstrip
0.510″ x 0.080″ Microstrip
0.030″ Glass Teflon, 2 oz Copper,
3 x 5″ Dimensions, Manufacturer;
Arlon, P/N: GX0300–55–22, εr = 2.55
Figure 1. Schematic of 1.93–2.0 GHz Broadband Test Circuit
MOTOROLA RF DEVICE DATA
MRF284 MRF284S
3
VSUPPLY
+
+
R1
C1
R3
+
VDD
P1
B1
VDD
+
B3
B4
B5
R9
R10
R11
C15
B2
+
Q1
R4
R2
Q2
R6
R5
+
C9
C7 R7
C8
R8
C11
C2
C13
C10
C16
C4
–
L4
L1
RF
INPUT
Z1
L3
Z2
Z3
Z4
Z5
Z6
Z10
Z7
Z8
Z9
Z11
Z12
Z13
DUT
Z14
Z15
Z16
RF
OUTPUT
C14
C12
C17
C3
L2
B1 – B5
C1, C9, C16
C2, C13
C3, C14
C4, C11
C5
C6
C7, C15
C8
C10
C12, C17
L1
L2
L3, L4
P1
Q1
Q2
R1
R2
R3
R4
C5
C6
Ferrite Bead, Round
100 µF, 50 V, Electrolytic Capacitor, Sprague
51 pF, ATC RF Chip Capacitors, Case “B”
10 pF, ATC RF Chip Capacitors, Case “B”
12 pF, ATC RF Chip Capacitors, Case “B”
0.8 – 8.0 pF Variable Capacitor, Johansen Gigatrim
4.7 pF, ATC RF Chip Capacitor, Case “B”
91 pF, ATC RF Chip Capacitors, Case “B”
1000 pF, ATC RF Chip Capacitor, Case “B”
0.1 µF, Chip Capacitor, KEMET
0.6 – 4.5 pF, Variable Capacitors, Johansen Gigatrim
4 Turns, #27 AWG, 0.087″ OD, 0.050″ ID,
0.069″ Long, 10 nH
5 Turns, #24 AWG, 0.083″ OD, 0.040″ ID,
0.128″ Long, 12.5 nH
9 Turns, #26 AWG, 0.080″ OD, 0.046″ ID,
0.170″ Long, 30.8 nH
1000 Ohm Potentiometer, 1/2 W, 10 Turns
Transistor, NPN, Motorola P/N: MJD31, Case 369A–10
Transistor, PNP, Motorola P/N: MJD32, Case 369A–10
360 Ω, Fixed Film Chip Resistor 0.08″ x 0.13″
2 x 12 kΩ, Fixed Film Chip Resistor 0.08″ x 0.13″
1 Ω, Wirewound, 5 W, 3% Resistor
4 x 6.8 kΩ, Fixed Film Chip Resistor 0.08″ x 0.13″
R5
R6
R7 – R11
Z1
Z2
Z3
Z4
Z5
Z6
Z7
Z8
Z9
Z10
Z11
Z12
Z13
Z14
Z15
Z16
Raw PCB
Material
2 x 1500 Ω, Fixed Film Chip Resistor 0.08″ x 0.13″
270 Ω, Fixed Film Chip Resistor, 0.08″ x 0.13″
12 Ω, Fixed Film Chip Resistor, 0.08″ x 0.13″
0.363″ x 0.080″ Microstrip
0.080″ x 0.080″ Microstrip
0.916″ x 0.080″ Microstrip
0.517″ x 0.080″ Microstrip
0.050″ x 0.325″ Microstrip
0.050″ x 0.325″ Microstrip
0.071″ x 0.325″ Microstrip
0.125″ x 0.325″ Microstrip
0.210″ x 0.515″ Microstrip
0.210″ x 0.515″ Microstrip
0.235″ x 0.325″ Microstrip
0.02″ x 0.325″ Microstrip
0.02″ x 0.325″ Microstrip
0.510″ x 0.080″ Microstrip
0.990″ x 0.080″ Microstrip
0.390″ x 0.080″ Microstrip
0.030″ Glass Teflon, 2 oz Copper,
3 x 5″ Dimensions, Manufacturer;
Arlon, P/N: GX–0300–55–22, εr = 2.55
Figure 2. Schematic of 2.0 GHz Class A Test Circuit
MRF284 MRF284S
4
MOTOROLA RF DEVICE DATA
TYPICAL CHARACTERISTICS
14
45
35
13
40
30
12
25
11
10
20
Gpe
15
9
8
10
VDD = 26 Vdc
IDQ = 200 mA
f = 2000 MHz Single Tone
5
0
4W
0
1.0
0.5
3.5
35
2W
30
25
Pin = 1 W
20
VDD = 26 Vdc
IDQ = 200 mA
Single Tone
15
7
2.0
3.0
1.5
2.5
Pin, INPUT POWER (WATTS)
3W
6
4.0
10
1800 1820 1840 1860 1880 1900 1920 1940 1960 1980 2000
f, FREQUENCY (MHz)
12
– 20
VDD = 26 Vdc
IDQ = 200 mA
– 30 f = 2000.0 MHz
1
f2 = 2000.1 MHz
– 40
– 50
Figure 4. Output Power versus Frequency
–15
Gpe
3rd Order
5th Order
– 60
10
–20
9
–25
7th Order
–30
8
Pout = 30 W (PEP)
IDQ = 200 mA
f1 = 2000.0 MHz
f2 = 2000.1 MHz
7
– 70
– 80
0.1
–10
11
G pe , GAIN (dB)
IMD, INTERMODULATION DISTORTION (dBc)
Figure 3. Output Power & Power Gain
versus Input Power
6
16
1.0
10
Pout, OUTPUT POWER (WATTS) PEP
18
26
–40
28
13
– 20
– 30
24
20
22
VDD, DRAIN SUPPLY VOLTAGE (Vdc)
–35
Figure 6. Power Gain and Intermodulation
Distortion versus Supply Voltage
VDD = 26 Vdc
f1 = 2000.0 MHz
f2 = 2000.1 MHz
IDQ = 400 mA
12
G pe , POWER GAIN (dB)
IMD, INTERMODULATION DISTORTION (dBc)
Figure 5. Intermodulation Distortion
versus Output Power
IMD
IMD, INTERMODULATION DISTORTION (dBc)
Pout
G pe , GAIN (dB)
,
OUTPUT
POWER (WATTS)
Pout
Pout , OUTPUT POWER (WATTS)
40
100 mA
– 40 300 mA
300 mA
200 mA
11
10
200 mA
– 50
9
IDQ = 400 mA
– 60
0.1
1.0
10
VDD = 26 Vdc
f1 = 2000.0 MHz
f2 = 2000.1 MHz
100 mA
8
0.1
1.0
10
Pout, OUTPUT POWER (WATTS) PEP
Pout, OUTPUT POWER (WATTS) PEP
Figure 7. Intermodulation Distortion
versus Output Power
Figure 8. Power Gain versus Output Power
MOTOROLA RF DEVICE DATA
MRF284 MRF284S
5
TYPICAL CHARACTERISTICS
3
100
Ciss
Tflange = 100°C
C, CAPACITANCE (pF)
ID, DRAIN CURRENT (Adc)
Tflange = 75°C
2
1
Coss
10
TJ = 175°C
Crss
0
0
4
8
12
16
20
24
28
1
0
4
VDD, DRAIN SUPPLY VOLTAGE (Vdc)
Pout , OUTPUT POWER (dBm)
Figure 9. DC Safe Operating Area
60
50
40
30
20
10
0
–10
– 20
– 30
– 40
– 50
– 60
–70
– 80
– 90
8
16
12
20
24
VDS, DRAIN SOURCE VOLTAGE (VOLTS)
28
Figure 10. Capacitance versus
Drain Source Voltage
FUNDAMENTAL
3rd Order
VDD = 26 Vdc
IDQ = 1.8 Adc
f1 = 2000.0 MHz
f2 = 2000.1 MHz
0
5
10
15
20 25 30 35 40
Pin, INPUT POWER (dBm)
45
50
55
60
Figure 11. Class A Third Order Intercept Point
MRF284 MRF284S
6
MOTOROLA RF DEVICE DATA
45
GAIN
40
Gp , GAIN (dB)
9
35
η
Pout = 30 Watts (PEP)
VDD = 26 Vdc, IDQ = 200 mA
Two–Tone
Frequency Delta = 100 kHz
8
7
30
6
IMD
–36
5
4
VSWR
3
1920
1940
1960
f, FREQUENCY (MHz)
3.0
–32
1980
–40
2000
INTERMODULATION
DISTORTION (dBc)
10
2.0
INPUT VSWR
11
EFFICIENCY (%)
TYPICAL CHARACTERISTICS
1.0
Figure 12. 1.92–2.0 GHz Broadband Circuit Performance
MTBF FACTOR (HOURS x AMPS 2 )
1.E+10
1.E+09
1.E+08
1.E+07
1.E+06
1.E+05
1.E+04
0
50
100
150
200
250
TJ, JUNCTION TEMPERATURE (°C)
This graph displays calculated MTBF in hours x ampere2 drain current.
Life tests at elevated temperature have correlated to better than ±10%
of the theoretical prediction for metal failure. Divide MTBF factor by ID2
for MTBF in a particular application.
Figure 13. MTBF Factor versus Junction Temperature
MOTOROLA RF DEVICE DATA
MRF284 MRF284S
7
+ j1
+ j0.5
+ j2
+ j3
Zin
2 GHz
+ j0.2
+ j5
Zo = 1 Ω
0.2
0.0
0.5
+ j10
2 GHz
f = 1.8 GHz
1
2
3
5
ZOL*
f = 1.8 GHz
– j10
– j5
– j0.2
– j3
– j2
– j0.5
– j1
VCC = 26 V, ICQ = 200 mA, Pout = 15 Wavg
f
MHz
Zin(1)
Ω
ZOL*
Ω
1800
1.0 + j0.4
2.1 – j0.4
1860
1.0 + j0.8
2.2 + j0.2
1900
1.0 + j1.1
2.3 + j0.5
1960
1.0 + j1.4
2.5 + j0.9
2000
1.0 + j2.3
2.6 + j0.92
Zin(1)= Conjugate of fixture base terminal impedance.
ZOL* = Conjugate of the optimum load impedance at
given output power, voltage, bias current and
frequency.
Figure 14. Series Equivalent Input and Output Impedence
MRF284 MRF284S
8
MOTOROLA RF DEVICE DATA
Table 1. Common Source S–Parameters at VDS = 26 Vdc, ID = 1.8 Adc
f
GHz
GH
S11
S21
S12
S22
|S11|
∠f
|S21|
∠f
|S12|
∠f
|S22|
∠f
1.0
0.902
–170
1.10
28
0.005
60
0.913
–162
1.1
0.934
–167
0.92
26
0.006
82
0.921
–163
1.2
0.948
–167
0.85
24
0.007
89
0.924
–164
1.3
0.957
–169
0.73
21
0.009
94
0.929
–165
1.4
0.959
–169
0.68
19
0.011
94
0.931
–165
1.5
0.960
–170
0.59
17
0.014
94
0.933
–167
1.6
0.958
–172
0.53
14
0.015
92
0.936
–168
1.7
0.958
–172
0.50
13
0.016
93
0.936
–169
1.8
0.956
–174
0.45
10
0.019
92
0.937
–170
1.9
0.954
–175
0.43
8
0.020
90
0.937
–171
2
0.944
–177
0.39
6
0.023
82
0.937
–173
2.1
0.934
–177
0.38
4
0.023
72
0.935
–174
2.2
0.935
–178
0.35
–1
0.013
72
0.932
–176
2.3
0.945
180
0.31
–4
0.016
116
0.925
–179
2.4
0.944
178
0.30
–5
0.023
112
0.930
–179
2.5
0.946
177
0.29
–7
0.024
105
0.935
179
2.6
0.941
174
0.25
–11
0.025
112
0.930
176
MOTOROLA RF DEVICE DATA
MRF284 MRF284S
9
NOTES
MRF284 MRF284S
10
MOTOROLA RF DEVICE DATA
PACKAGE DIMENSIONS
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
G
1
–B–
DIM
A
B
C
D
E
F
G
H
K
N
Q
3
Q 2 PL
2
K
0.25 (0.010)
D
E
H
T A
M
B
M
C
F
N
M
–T–
SEATING
PLANE
INCHES
MIN
MAX
0.790
0.810
0.220
0.240
0.125
0.175
0.205
0.225
0.050
0.070
0.004
0.006
0.562 BSC
0.070
0.090
0.215
0.255
0.350
0.370
0.120
0.140
MILLIMETERS
MIN
MAX
20.07
20.57
5.59
6.09
3.18
4.45
5.21
5.71
1.27
1.77
0.11
0.15
14.27 BSC
1.78
2.29
5.47
6.47
8.89
9.39
3.05
3.55
STYLE 1:
PIN 1. DRAIN
2. GATE
3. SOURCE
–A–
CASE 360B–01
ISSUE O
(MRF284)
1
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
–B–
2
K
E
D
N
F
H
3
C
–T–
DIM
A
B
C
D
E
F
H
K
N
INCHES
MIN
MAX
0.370
0.390
0.220
0.240
0.105
0.155
0.205
0.225
0.035
0.045
0.004
0.006
0.057
0.067
0.085
0.115
0.350
0.370
MILLIMETERS
MIN
MAX
9.40
9.91
5.59
6.09
2.67
3.94
5.21
5.71
0.89
1.14
0.11
0.15
1.45
1.70
2.16
2.92
8.89
9.39
SEATING
PLANE
–A–
STYLE 1:
PIN 1. DRAIN
2. GATE
3. SOURCE
CASE 360C–03
ISSUE B
(MRF284S)
MOTOROLA RF DEVICE DATA
MRF284 MRF284S
11
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 which may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. 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.
Mfax is a trademark of Motorola, Inc.
How to reach us:
USA / EUROPE / Locations Not Listed: Motorola Literature Distribution;
P.O. Box 5405, Denver, Colorado 80217. 1–303–675–2140 or 1–800–441–2447
JAPAN: Nippon Motorola Ltd.: SPD, Strategic Planning Office, 4–32–1,
Nishi–Gotanda, Shinagawa–ku, Tokyo 141, Japan. 81–3–5487–8488
Customer Focus Center: 1–800–521–6274
Mfax: [email protected] – TOUCHTONE 1–602–244–6609
ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park,
Motorola Fax Back System
– US & Canada ONLY 1–800–774–1848 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298
– http://sps.motorola.com/mfax/
HOME PAGE: http://motorola.com/sps/
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