MOTOROLA MRFIC2403

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by MRFIC2403/D
SEMICONDUCTOR TECHNICAL DATA
The MRFIC Line
The MRFIC2403 is a two–stage class B GaAs power amplifier in a low–cost
16 lead plastic package designed for use in the 2.4 to 2.5 GHz Industrial–
Scientific–Medical (ISM) band. The design is optimized for efficiency at 5.0 Volt
operation at 2.5 GHz but is usable from 2.0 to 3.0 GHz in applications such as
telemetry and Multichannel Multipoint Distribution System (MMDS) wireless
cable TV systems. Performance is suitable for frequency hopping or direct
sequence spread spectrum as well as single–frequency applications. Power
control circuitry allows 20 dB dynamic range for setting the output power.
• High Output Power = +23.5 dBm Typical
• High Gain = 23 dB Typical
• Excellent Efficiency = 55% Typical
• Power Control = 20 dB Range
• Low–Cost, Low Profile Plastic SOIC Package
• Available in Tape and Reel by Adding R2 Suffix to Part Number.
R2 Suffix = 2,500 Units per 16 mm, 13 inch Reel.
• Device Marking = M2403
2.4 GHz
POWER AMPLIFIER
GaAs MONOLITHIC
INTEGRATED CIRCUIT
CASE 751B-05
(SO–16)
ABSOLUTE MAXIMUM RATINGS (TA = 25_C unless otherwise noted)
Parameter
Symbol
Value
Unit
VDD
6.0
Vdc
Power Control Voltage
VCONTRL
6.0
Vdc
Gate Bias Voltage
VG1, VG2
–4.0
Vdc
RF IN
+10
dBm
TA
–30 to +85
_C
Tstg
–65 to +125
_C
Supply Voltage
RF Input Power
Ambient Operating Temperature
Storage Temperature
N/C
GND
RF OUT
VD2
GND
GND
VG2
GND
VG1
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
VDD
GND
PCNTRL
GND
GND
RF IN
GND
N/C
Pin Connections and Functional Block Diagram
REV 1
RF DEVICE DATA
MOTOROLA
Motorola, Inc. 1995
MRFIC2403
1
RECOMMENDED OPERATING CONDITIONS
Symbol
Value
Unit
Supply Voltage
Parameter
VDD
4.75 to 5.25
Vdc
Gate Bias Voltage, Input Stage
VG1
–1.0
Vdc
Gate Bias Voltage, Output Stage
VG2
–2.0
Vdc
Quiescent Drain Current, Stage One
IDQ1
12
mA
Quiescent Drain Current, Stage Two
IDQ2
10
mA
fOP
2200 to 2700
MHz
Operating Frequency Range
ELECTRICAL CHARACTERISTICS (VDD = 5.0 Vdc, TA = 25_C, RF = 2.45 GHz @ +4.0 dBm, VG1 = –1.0 Vdc, VG2 = –2.0 Vdc, PCNTRL =
5.0 Vdc)
Characteristic
Min
Typ
Max
Unit
Small Signal Gain (Pin = –6.0 dBm)
–
23
–
dB
Power Output (Pin = +4.0 dBm)
23
23.5
–
dBm
Power Output, Saturation
–
23.5
–
dBm
Power Output, 1.0 dB Compression
–
19
–
dBm
2nd Harmonic Output
–
–20
–
dBc
3rd Harmonic Output
–
–30
–
dBc
Third Order Intermodulation Products (Pin = +4.0 dBm PEP)
–
–15
–
dBc
Reverse Isolation
–
32
–
dB
Power Control Range, PCNTRL
–
20
–
dB
Reverse Isolation
–
30
–
dB
Supply Current
–
95
140
mA
SLEEP Mode Supply Current (VG1 = VG2 = –3.0 Vdc, PCNTRL = 0 Vdc)
–
150
–
mA
VG1
VG2
C5
RF OUT
C6
L1
VDD2
9
8
10
7
11
6
12
5
13
4
14
3
15
2
16
1
RF IN
PCNTRL
C2
C1, C2, C3 – 0.01 µF
C4 – 5.1 pF
C5 – 15 pF
C6 – 1.0 pF
L1 – 6.8 nH
Board Material – 30 MIL FR4
Connectors – SMA type
VD1
C1
C3
C4
Figure 1. Applications Circuit Configuration
MRFIC2403
2
MOTOROLA RF DEVICE DATA
Table 1. Class A Scattering Parameters
(VDD = 5 V, IDQ1 = 24 mA, IDQ2 = 96 mA, TA = 25°C, 50 W System)
f
S11
S21
S12
S22
(MHz)
|S11|
∠φ
|S21|
∠φ
|S12|
∠φ
|S22|
∠φ
2000
0.377
–157.00
27.625
57.40
0.004
–74.70
0.740
–102.10
2050
0.218
–171.70
28.938
36.80
0.006
–101.60
0.763
–115.30
2100
0.075
–178.80
29.088
17.20
0.007
–130.70
0.724
–126.80
2150
0.049
–96.10
27.904
–0.20
0.007
–163.20
0.663
–135.80
2200
0.104
–56.60
26.930
–14.90
0.008
–169.60
0.601
–141.80
2250
0.130
–60.60
24.246
–27.80
0.009
173.50
0.550
–146.30
2300
0.125
–65.40
24.286
–39.40
0.010
165.00
0.504
–149.10
2350
0.106
–67.60
22.287
–49.60
0.010
157.70
0.471
–151.60
2400
0.083
–56.10
21.867
–59.80
0.009
140.70
0.444
–153.80
2450
0.064
–27.00
21.837
–68.90
0.011
141.40
0.422
–155.90
2500
0.072
26.20
20.113
–78.00
0.012
139.80
0.401
–158.60
2550
0.110
44.60
19.828
–86.40
0.009
140.00
0.385
–161.20
2600
0.160
44.50
18.941
–94.30
0.007
124.50
0.364
–164.50
2650
0.194
40.60
18.001
–101.90
0.012
128.30
0.350
–167.70
2700
0.237
36.60
17.268
–109.20
0.011
102.30
0.335
–171.40
2750
0.269
31.30
16.379
–116.30
0.010
110.90
0.317
–174.50
2800
0.304
25.50
15.826
–123.40
0.009
105.80
0.311
–178.60
2850
0.325
19.80
15.125
–130.40
0.010
103.60
0.292
177.50
2900
0.345
14.50
14.611
–137.50
0.008
99.70
0.279
172.80
2950
0.356
9.40
14.048
–143.60
0.009
92.80
0.271
168.90
3000
0.370
2.40
13.663
–150.40
0.011
88.20
0.259
163.80
MOTOROLA RF DEVICE DATA
MRFIC2403
3
Table 2. Class B Scattering Parameters
(VDD = 5 V, IDQ1 = 12 mA, IDQ2 = 10 mA, TA = 25°C, 50 W System)
f
S11
S21
S12
S22
(MHz)
|S11|
∠φ
|S21|
∠φ
|S12|
∠φ
|S22|
∠φ
2000
0.634
–149.00
12.40
88.00
0.007
–59.00
0.893
–81.00
2050
0.554
–170.00
14.76
72.00
0.013
–81.00
0.966
–89.00
2100
0.456
163.00
17.00
53.00
0.015
–95.00
0.990
–100.00
2150
0.362
129.00
18.09
32.00
0.017
–117.00
0.955
–110.00
2200
0.310
91.00
18.81
12.00
0.020
–138.00
0.870
–119.00
2250
0.298
58.00
17.37
–5.00
0.021
–156.00
0.771
–125.00
2300
0.298
30.00
17.22
–21.00
0.021
–169.00
0.681
–128.00
2350
0.289
11.00
15.89
–34.00
0.020
179.00
0.612
–130.00
2400
0.275
0.00
14.74
–45.00
0.020
168.00
0.562
–130.00
2450
0.248
–8.00
15.35
–56.00
0.021
155.00
0.528
–131.00
2500
0.216
–10.00
13.62
–66.00
0.019
147.00
0.498
–131.00
2550
0.199
–8.00
13.46
–75.00
0.021
143.00
0.473
–132.00
2600
0.187
–2.00
12.95
–83.00
0.020
134.00
0.447
–132.00
2650
0.185
4.00
12.32
–91.00
0.020
129.00
0.426
–134.00
2700
0.202
10.00
11.78
–99.00
0.021
123.00
0.405
–135.00
2750
0.218
13.00
11.25
–107.00
0.021
115.00
0.384
–136.00
2800
0.244
14.00
10.83
–114.00
0.018
106.00
0.373
–137.00
2850
0.268
13.00
10.34
–121.00
0.019
98.00
0.353
–139.00
2900
0.285
10.00
10.05
–129.00
0.019
99.00
0.332
–140.00
2950
0.301
7.00
9.61
–135.00
0.018
102.00
0.316
–143.00
3000
0.317
3.00
9.46
–142.00
0.018
90.00
0.302
–145.00
MRFIC2403
4
MOTOROLA RF DEVICE DATA
TYPICAL CHARACTERISTICS
23
21
70
26
60
25
50
EFFICIENCY
40
19
17
15
13
11
–10
30
f = 2.45 GHz
VDD = 5.0 Vdc
VG1 = –1.0 Vdc
VG2 = –2.0 Vdc
–8
–6
–4
–2
0
2
PIN, INPUT POWER (dBm)
20
6
4
Pout , OUTPUT POWER (dBm)
POUT
POWER ADDED EFFICIENCY (%)
Pout , OUTPUT POWER (dBm)
25
TA = – 30°C
24
25°C
23
85°C
22
21
Pin = +4.0 dBm
VDD = 5.0 Vdc
VG1 = –1.0 Vdc
VG2 = –2.0 Vdc
20
10
19
0
18
2.0
Figure 2. Output Power and Efficiency versus
Input Power
2.1
2.2
2.3
2.5 2.6
2.7
2.4
f, FREQUENCY (GHz)
2.8
2.9
3.0
Figure 3. Output Power versus Frequency
25
Pout , OUTPUT POWER (dBm)
20
15
10
f = 2.45 GHz
Pin = +4.0 dBm
VDD = 5.0 Vdc
VG1 = –1.0 Vdc
VG2 = –2.0 Vdc
5
0
–5
0
1
2
3
PCNTRL, (VOLTS)
4
5
Figure 4. Output Power versus PCNTRL Voltage
DESIGN AND APPLICATIONS INFORMATION
The MRFIC2403 is a two–stage power amplifier designed
using Motorola’s MAFET planar, refractory gate MESFET IC
process. The RF MESFETs are power, depletion mode
devices and, therefore, require negative bias on the MESFET
gates. For class B operation, –1.0 Vdc is applied to VG1 and
–2.0 Vdc is applied to VG2. Class A biasing will yield slightly
higher gain and 1.0 dB compression point and can be accomplished by adjusting the bias on VG1 for IDQ1 = 24 mA and
VG2 for IDQ2 = 96 mA. Where negative voltages are not
already available, Motorola’s MC33128 Power Management
IC can produce –2.5 Vdc from a single positive supply.
The device is capable of better than +23 dBm saturated
output power in the 2.4 to 2.5 GHz ISM band with the output
matching circuit shown in Figure 1. The device can be
operated at other frequencies in the 2.0 GHz to 3.0 GHz
range with this circuit but performance can be improved
with tuning for the specific frequency of use. Input matching is provided on chip. This circuit provides the best gain,
saturated output power and efficiency tradeoff. Saturated
operation has the advantage of best efficiency with less
variation in performance over frequency and temperature.
Operation in saturation is acceptable for constant envelope modulation schemes such as 2 and 4 level FM as specified for frequency hopping (FHSS) radios in the proposed
IEEE 802.11 PHY layer specification. For direct sequence
MOTOROLA RF DEVICE DATA
(DSSS) IEEE 802.11 operation, where differential binary
phase shift keying (DBPSK) and differential quadrature
phase shift keying (DQPSK) are specified, the amplifier will
have to be “backed off” from saturation by 5.0 dB or more to
avoid spectral regrowth. Care must be taken in the layout of
the circuit and controlled impedance lines must be used at
the RF pins. Capacitive bypassing as shown in the Applications Circuit must be implemented as close to the chip as
possible to avoid amplifier instability. Additionally, the supply
voltage should be supported by sufficient “stiffening” capacitance, typically electrolytic or tantalum bypass capacitors, to
eliminate noise from digital circuits.
Output power control is accomplished by varying the voltage on the PCNTRL pin. 0 Vdc gives minimum output and
reduces the current drawn by the amplifier to the quiescent
value. The amplifier can be put into “sleep” mode by
decreasing the voltage on the gate bias pins to –3.0 Vdc and
the current drain is reduced to a few hundred microamps.
EVALUATION BOARDS
Evaluation boards are available for RF Monolithic Integrated Circuits by adding a “TF” suffix to the device type.
For a complete list of currently available boards and ones
in development for newly introduced poduct, please contact your local Motorola Distributor or Sales Office.
MRFIC2403
5
PACKAGE DIMENSIONS
–A–
16
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.
5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.
9
–B–
1
P
8 PL
0.25 (0.010)
8
M
B
S
G
R
K
F
X 45 _
C
–T–
SEATING
PLANE
J
M
D
16 PL
0.25 (0.010)
M
T B
S
A
S
DIM
A
B
C
D
F
G
J
K
M
P
R
MILLIMETERS
MIN
MAX
9.80
10.00
3.80
4.00
1.35
1.75
0.35
0.49
0.40
1.25
1.27 BSC
0.19
0.25
0.10
0.25
0_
7_
5.80
6.20
0.25
0.50
INCHES
MIN
MAX
0.386
0.393
0.150
0.157
0.054
0.068
0.014
0.019
0.016
0.049
0.050 BSC
0.008
0.009
0.004
0.009
0_
7_
0.229
0.244
0.010
0.019
CASE 751B–05
ISSUE J
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
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MRFIC2403
6
◊
*MRFIC2403/D*
MRFIC2403/D
MOTOROLA RF DEVICE
DATA