MOTOROLA MRFIC1808

Order this document
by MRFIC1808/D
SEMICONDUCTOR TECHNICAL DATA
The MRFIC Line
Designed primarily for use in wireless Personal Communication Systems
(PCS) applications such as Digital European Cordless Telephone (DECT),
Japan’s Personal Handy System (PHS) and the emerging North American
systems as a preamp for discrete or integrated downmixers. The MRFIC1808
is a two–stage low noise amplifier in a low–cost SO–8 package. The amplifier
can be matched to optimize gain or noise figure with simple off–chip input
matching. The design employs a novel stacked MESFET design which reuses
bias current for the highest gain at minimal current. A CMOS compatible
RECEIVE ENABLE pin allows for very low standby current while the system is
in transmit mode.
• Usable Frequency Range = 1.7 to 2.1 GHz
• 19 dB Typ Gain
• 1.6 dB Typ Noise Figure
• Simple Off–chip Matching for Maximum Gain/Noise Figure Flexibility
• High Reverse Isolation = –34 dB (Typ)
• Low Power Consumption = 13 mW (Typ)
• Single Bias Supply = 2.7 to 4.5 Volts
• Low Standby Current = 8 µA (Typ)
• Low Cost Surface Mount Plastic Package
• Order MRFIC1808R2 forTape and Reel.
R2 Suffix = 2,500 Units per 16 mm, 13 inch Reel.
• Device Marking = M1808
1.9 GHz GaAs
LOW NOISE
AMPLIFIER
CASE 751–05
(SO–8)
VDD1
1
8
RX ENABLE
N/C
2
7
GND
RF OUT
3
6
RF IN
LNA CAP
4
5
GND
Pin Connections and Functional Block Diagram
REV 1
RF DEVICE DATA
MOTOROLA
Motorola, Inc. 1997
MRFIC1808
1
MAXIMUM RATINGS (TA = 25°C unless otherwise noted)
Symbol
Limit
Unit
Supply Voltage
VDD
5.5
Vdc
RF Input Power
PRF
3
dBm
Enable Voltage
RX ENABLE
5.5
Vdc
Tstg
– 65 to +150
°C
TA
– 30 to +85
°C
Rating
Storage Temperature Range
Operating Ambient Temperature
RECOMMENDED OPERATING RANGES
Symbol
Value
Unit
RF Frequency
Parameter
fRF
1.7 to 2.1
GHz
Supply Voltage
VDD
2.7 to 4.5
Vdc
RX Enable Voltage, ON
RX ENABLE
2.7 to VDD
Vdc
RX Enable Voltage, OFF
RX ENABLE
0 to 0.2
Vdc
ELECTRICAL CHARACTERISTICS (VDD = 3 V, TA = 25°C, RF = 1.9 GHz, RX ENABLE = 3 V, Tested in Circuit Shown in Figure 1)
Min
Typ
Max
Unit
16.0
19
—
dB
SSB Noise Figure
—
1.6
—
dB
RF Output 3rd Order Intercept Point
—
13
—
dBm
– 3.0
1
—
dBm
Reverse Isolation (s12)
—
–34
—
dB
Input Return Loss
—
–12
—
dB
Output Return Loss
—
–15
—
dB
Supply Current RX Mode
—
4.2
6.5
mA
Supply Current Standby Mode (RX ENABLE = 0 V)
—
8
25
mA
Characteristic
RF Gain
Output 1 dB Gain Compression
VDD
C4
1
8
2
7
3
6
RX ENABLE
L1
RF OUT
C3
RF IN
C2
5
4
C1
C1
C2
C3, C4
L1
2 pF
1.8 pF
22 pF
5.6 nH
Figure 1. Applications Circuit Configuration
MRFIC1808
2
MOTOROLA RF DEVICE DATA
21
21
5V
–30°C
20
20
4V
25°C
19
G, GAIN (dB)
G, GAIN (dB)
19
VDD = 3 V
18
TA = 85°C
18
17
Pin = –30 dBm
TA = 25°C
RX ENABLE = 3 V
17
16
1.8
Pin = –30 dBm
VDD = 3 V
RX ENABLE = 3 V
16
15
1.85
1.9
f, FREQUENCY (GHz)
1.95
1.8
2
1.82
Figure 2. Gain versus Frequency
1.84 1.86
1.88 1.9 1.92 1.94
f, FREQUENCY (GHz)
1.96 1.98
2
Figure 3. Gain versus Frequency
6
6
5V
0
Pout , OUTPUT POWER (dBm)
Pout , OUTPUT POWER (dBm)
–30°C
3
VDD = 3 V
–3
4V
–6
TA = 25°C
f = 1.9 GHz
RX ENABLE = 3 V
–9
–12
–31
–28
–25
–22
–19
–16
Pin, INPUT POWER (dBm)
–13
3
–6
–12
–31
–22
–19
–25
–16
Pin, INPUT POWER (dBm)
–13
–10
5.25
VDD = 3 – 5 V
RX ENABLE = VDD
IDD , SUPPLY CURRENT (mA)
NF, NOISE FIGURE (dB)
–28
Figure 5. Output Power versus Input Power
4.5
3.5
3
TA = 85°C
2.5
2
25°C
1.5
–30°C
1
1.7
VDD = 3 V
f = 1.9 GHz
RX ENABLE = 3 V
–9
–10
25°C
TA = 85°C
–3
Figure 4. Output Power versus Input Power
4
25°C
0
1.8
1.9
2
f, FREQUENCY (GHz)
2.1
Figure 6. Noise Figure versus Frequency
MOTOROLA RF DEVICE DATA
2.2
5
4.75
4.5
f = 1.9 GHz
TA = 25°C
RX ENABLE = 3 V
4.25
4
2.8
3.1
4.6
3.4
3.7
4
4.3
VDD, SUPPLY VOLTAGE (VOLTS)
4.9
5.2
Figure 7. Supply Current versus Voltage
MRFIC1808
3
–33
–32
–34
REVERSE ISOLATION (dB)
REVERSE ISOLATION (dB)
–30°C
VDD = 3 V
4V
–35
5V
–36
Pin = –30 dBm
TA = 25°C
RX ENABLE = 3 V
–37
1.8 1.82
1.84 1.86 1.88 1.9 1.92 1.94
f, FREQUENCY (GHz)
1.96 1.98
Figure 8. Reverse Isolation versus Frequency
MRFIC1808
4
–33
25°C
–34
TA = 85°C
–35
Pin = –30 dBm
VDD = 3 V
RX ENABLE = 3 V
–36
2
–37
1.8
1.82 1.84
1.86 1.88 1.9 1.92 1.94
f, FREQUENCY (GHz)
1.96 1.98
2
Figure 9. Reverse Isolation versus Frequency
MOTOROLA RF DEVICE DATA
Table 1. Scattering Parameters (VDD = 3 Volts, TA = 25°C, RX ENABLE = 3 Volts, 50 W System)
S11
S21
S12
S22
f
(MHz)
|S11|
∠φ
|S21|
∠φ
|S12|
∠φ
|S22|
∠φ
1500
0.859
–40.95
2.58
139.07
0.013
103.72
0.583
–79.05
1530
0.870
–41.50
2.79
134.79
0.013
105.63
0.530
–80.94
1560
0.866
–42.06
3.01
130.60
0.013
99.14
0.474
–82.85
1590
0.871
–42.92
3.18
125.11
0.014
98.40
0.412
–83.57
1620
0.873
–43.47
3.30
118.70
0.012
98.00
0.348
–83.11
1650
0.876
–43.60
3.37
112.85
0.012
97.39
0.285
–80.54
1680
0.877
–44.86
3.52
106.23
0.012
92.68
0.229
–73.01
1710
0.880
–45.35
3.68
100.77
0.011
93.90
0.186
–60.35
1740
0.876
–46.03
3.80
94.40
0.012
93.12
0.168
–40.74
1770
0.876
–47.22
3.87
88.75
0.011
88.55
0.182
–20.50
1800
0.885
–48.69
3.98
82.96
0.010
88.40
0.221
–6.82
1830
0.879
–48.55
3.98
76.83
0.010
89.46
0.272
–0.29
1860
0.881
–49.87
3.98
71.11
0.009
94.75
0.324
3.05
1890
0.885
–50.71
4.00
66.38
0.009
97.00
0.376
4.39
1920
0.878
–51.81
4.09
61.64
0.009
88.22
0.425
4.25
1950
0.873
–52.42
4.19
56.66
0.008
87.57
0.474
3.79
1980
0.860
–52.98
4.15
51.32
0.007
88.75
0.522
2.22
2010
0.866
–54.24
3.98
44.93
0.006
100.17
0.564
0.85
2040
0.859
–56.12
3.85
40.93
0.005
87.86
0.599
–0.87
2070
0.861
–56.69
3.89
37.99
0.004
99.30
0.634
–3.01
2100
0.850
–57.79
4.04
35.71
0.004
98.94
0.661
–4.59
2130
0.844
–58.53
4.18
31.89
0.004
118.15
0.691
–6.96
2160
0.834
–60.21
4.21
26.88
0.003
137.84
0.714
–8.94
2190
0.834
–61.26
4.15
22.38
0.003
141.53
0.734
–11.49
2220
0.830
–62.53
4.17
18.75
0.004
–164.13
0.760
–13.48
2250
0.817
–63.84
4.22
14.85
0.004
–172.30
0.776
–15.27
2280
0.812
–64.69
4.21
9.17
0.005
–165.76
0.787
–17.20
2310
0.811
–66.64
4.14
4.09
0.006
–148.57
0.805
–19.42
2340
0.800
–67.89
3.95
1.20
0.007
–153.96
0.808
–21.63
2370
0.794
–69.40
3.83
0.29
0.008
–144.49
0.819
–23.38
2400
0.791
–72.05
3.88
0.33
0.009
–133.12
0.822
–26.10
2430
0.784
–73.59
4.09
–2.06
0.012
–138.06
0.826
–28.21
2460
0.774
–75.60
4.30
–8.63
0.014
–138.55
0.824
–30.43
2490
0.769
–78.81
4.33
–16.94
0.015
–146.05
0.821
–32.72
2520
0.751
–80.46
4.31
–23.37
0.018
–148.25
0.815
–35.42
2550
0.737
–83.20
4.23
–27.46
0.021
–149.08
0.798
–37.56
2580
0.707
–86.12
4.08
–32.67
0.024
–155.44
0.767
–39.31
MOTOROLA RF DEVICE DATA
MRFIC1808
5
Table 2. Scattering Parameters (VDD = 4 Volts, TA = 25°C, RX ENABLE = 3 Volts, 50 W System)
S11
S21
S12
S22
f
(MHz)
|S11|
∠φ
|S21|
∠φ
|S12|
∠φ
|S22|
∠φ
1500
0.849
–40.63
2.83
138.31
0.013
101.12
0.592
–78.76
1530
0.854
–41.00
3.07
134.02
0.012
99.54
0.537
–80.92
1560
0.852
–41.65
3.30
129.90
0.012
97.89
0.482
–82.91
1590
0.855
–42.76
3.50
124.44
0.013
103.09
0.421
–84.04
1620
0.861
–43.15
3.63
118.09
0.013
104.42
0.357
–84.20
1650
0.862
–43.22
3.73
112.01
0.012
95.75
0.293
–82.14
1680
0.861
–44.49
3.89
106.04
0.012
95.43
0.233
–75.91
1710
0.861
–44.93
4.07
100.17
0.011
99.73
0.187
–63.54
1740
0.869
–45.60
4.19
94.14
0.011
94.00
0.164
–43.94
1770
0.864
–46.48
4.30
87.75
0.011
95.67
0.173
–22.19
1800
0.870
–48.17
4.41
82.13
0.011
88.56
0.210
–7.42
1830
0.860
–48.09
4.41
75.97
0.010
88.92
0.258
0.31
1860
0.866
–49.28
4.41
70.37
0.010
96.31
0.313
3.91
1890
0.870
–50.19
4.46
65.24
0.009
93.39
0.367
5.28
1920
0.861
–50.75
4.54
60.65
0.008
90.74
0.417
5.60
1950
0.852
–51.77
4.66
55.96
0.008
89.58
0.468
4.75
1980
0.849
–52.40
4.56
50.46
0.007
84.42
0.518
3.22
2010
0.847
–53.50
4.40
44.25
0.006
94.48
0.561
1.68
2040
0.847
–55.19
4.25
39.96
0.005
88.62
0.597
–0.03
2070
0.847
–55.75
4.29
37.08
0.004
109.85
0.633
–2.25
2100
0.842
–56.92
4.47
34.67
0.005
103.26
0.664
–3.78
2130
0.830
–57.36
4.61
30.80
0.004
125.77
0.694
–6.23
2160
0.823
–59.26
4.66
26.03
0.004
122.00
0.717
–8.30
2190
0.820
–60.09
4.57
21.27
0.004
152.31
0.742
–10.87
2220
0.820
–61.37
4.57
17.70
0.002
160.02
0.762
–13.04
2250
0.812
–63.01
4.63
13.81
0.003
176.88
0.778
–14.80
2280
0.801
–63.88
4.61
8.47
0.004
–165.16
0.792
–17.00
2310
0.802
–65.68
4.54
2.90
0.005
–156.21
0.807
–19.20
2340
0.789
–67.07
4.32
0.38
0.007
–141.83
0.815
–21.21
2370
0.781
–68.28
4.21
–1.24
0.008
–144.89
0.821
–23.34
2400
0.775
–70.61
4.23
–0.61
0.010
–143.18
0.826
–25.75
2430
0.771
–72.01
4.47
–2.85
0.012
–140.04
0.829
–28.07
2460
0.764
–74.59
4.70
–9.44
0.012
–144.28
0.829
–30.56
2490
0.759
–77.25
4.72
–17.93
0.015
–149.63
0.826
–32.63
2520
0.743
–78.88
4.69
–24.28
0.017
–148.60
0.820
–35.12
2550
0.730
–81.98
4.58
–28.44
0.021
–148.70
0.802
–37.38
2580
0.700
–85.55
4.45
–33.64
0.022
–157.99
0.772
–39.29
MRFIC1808
6
MOTOROLA RF DEVICE DATA
Table 3. Scattering Parameters (VDD = 5 Volts, TA = 25°C, RX ENABLE = 3 Volts, 50 W System)
S11
S21
S12
f
(MHz)
|S11|
∠φ
|S21|
∠φ
|S12|
1500
0.830
–40.58
3.12
137.17
1530
0.839
–41.24
3.39
132.69
1560
0.836
–41.75
3.64
1590
0.842
–42.35
1620
0.848
1650
S22
∠ φ
|S22|
∠φ
0.011
98.73
0.600
–78.51
0.011
101.93
0.548
–80.73
128.74
0.012
96.66
0.492
–82.85
3.85
123.33
0.013
99.33
0.433
–84.11
–42.88
4.02
116.83
0.012
101.06
0.370
–84.63
0.843
–43.41
4.11
110.95
0.012
95.15
0.306
–82.83
1680
0.844
–44.37
4.30
104.87
0.012
96.02
0.243
–77.32
1710
0.849
–45.07
4.49
99.42
0.012
96.86
0.193
–66.79
1740
0.852
–45.25
4.64
93.23
0.010
99.66
0.163
–48.45
1770
0.848
–46.18
4.75
87.02
0.012
88.90
0.164
–26.11
1800
0.856
–47.76
4.88
81.25
0.011
93.18
0.200
–9.04
1830
0.850
–47.99
4.87
75.09
0.010
90.25
0.247
–0.08
1860
0.850
–48.93
4.90
69.14
0.009
88.62
0.301
3.73
1890
0.849
–49.88
4.96
64.08
0.009
93.94
0.355
5.69
1920
0.846
–50.72
5.02
59.31
0.009
93.67
0.407
6.01
1950
0.837
–51.45
5.15
54.55
0.007
90.89
0.459
5.70
1980
0.830
–52.33
5.07
48.85
0.008
98.84
0.511
4.17
2010
0.831
–52.97
4.89
42.81
0.006
90.07
0.557
2.40
2040
0.831
–55.08
4.72
38.38
0.004
100.73
0.593
0.51
2070
0.829
–55.58
4.74
35.43
0.005
96.39
0.631
–1.55
2100
0.823
–56.53
4.95
32.95
0.004
122.68
0.661
–3.57
2130
0.815
–57.23
5.10
29.26
0.004
112.15
0.691
–5.96
2160
0.805
–58.81
5.14
24.21
0.004
132.80
0.718
–7.96
2190
0.802
–59.57
5.04
19.45
0.004
136.20
0.739
–10.56
2220
0.801
–60.70
5.05
15.80
0.003
178.25
0.762
–12.60
2250
0.791
–62.24
5.11
12.01
0.004
170.40
0.780
–14.52
2280
0.781
–62.95
5.08
6.42
0.005
–172.19
0.793
–16.63
2310
0.786
–64.98
4.97
1.09
0.006
–169.11
0.811
–18.96
2340
0.773
–66.05
4.74
–1.76
0.006
–150.31
0.818
–21.10
2370
0.766
–67.23
4.60
–2.91
0.008
–143.53
0.821
–23.29
2400
0.763
–69.83
4.64
–2.54
0.009
–146.46
0.827
–25.81
2430
0.757
–71.49
4.89
–4.89
0.011
–141.36
0.832
–27.88
2460
0.750
–73.61
5.12
–11.49
0.012
–147.16
0.832
–30.37
2490
0.742
–76.17
5.17
–19.88
0.014
–145.27
0.827
–32.68
2520
0.726
–78.01
5.10
–26.09
0.016
–145.14
0.820
–35.26
2550
0.712
–81.26
5.01
–30.13
0.018
–150.98
0.805
–37.48
2580
0.686
–84.54
4.81
–35.31
0.022
–155.55
0.771
–39.32
MOTOROLA RF DEVICE DATA
MRFIC1808
7
PACKAGE DIMENSIONS
D
A
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME
Y14.5M, 1994.
2. DIMENSIONS ARE IN MILLIMETERS.
3. DIMENSION D AND E DO NOT INCLUDE MOLD
PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.
5. DIMENSION B DOES NOT INCLUDE MOLD
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS
OF THE B DIMENSION AT MAXIMUM MATERIAL
CONDITION.
C
8
5
0.25
H
E
M
B
M
1
4
h
B
X 45 _
e
q
A
C
SEATING
PLANE
L
0.10
A1
B
0.25
M
C B
S
A
S
DIM
A
A1
B
C
D
E
e
H
h
L
q
MILLIMETERS
MIN
MAX
1.35
1.75
0.10
0.25
0.35
0.49
0.18
0.25
4.80
5.00
3.80
4.00
1.27 BSC
5.80
6.20
0.25
0.50
0.40
1.25
0_
7_
CASE 751–05
ISSUE S
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
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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. 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
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INTERNET: http://motorola.com/sps
MRFIC1808
8
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MRFIC1808/D
MOTOROLA RF DEVICE
DATA