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MRFIC1814
1.9 GHz GaAs Downconverter
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. The MRFIC1814 includes a low noise amplifier and downmixer in a
low-cost TSSOP–16 package. The integrated circuit requires minimal
off-chip matching while allowing for the maximum in flexibility and efficiency.
The mixer is optimized for low–side injection and offers reasonable intercept
point as well as high efficiency with 8.0 dB of conversion gain. Image filtering
is implemented off-chip to allow maximum flexibility. CMOS compatible
ENABLE pins allow standby operation where the current drain is less than
0.1 mA.
Together with the rest of the MRFIC18XX series, this GaAs IC family
offers the complete transmit and receive functions, less LO and filters,
needed for a typical 1.8 GHz cordless telephone.
•
Usable Frequency Range = 1.8 to 2.0 GHz
1.8 GHz LOW NOISE
AMPLIFIER AND DOWNMIXER
SEMICONDUCTOR
TECHNICAL DATA
ARCHIVE INFORMATION
Freescale Semiconductor, Inc...
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•
•
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17 dB Typ Gain, 2.5 dB Typ Noise Figure LNA
8.0 dB Typ Gain, 10 dB Typ Noise Figure Mixer
–5.5 dBm Typ Mixer Input Intercept Point
Simple LO/IF Off-chip Matching for Maximum Flexibility
Low Power Consumption = 39 mW (Typ)
Single Bias Supply = 2.7 to 4.5 V
Low LO Power Requirement = –5.0 dBm (Typ)
Low Cost Surface Mount Plastic Package
16
1
PLASTIC PACKAGE
CASE 948C
(TSSOP–16)
PIN CONNECTIONS
Mixer Enable
N.C.
1
2
3
4
5
6
7
8
(Top View)
16
15
14
13
12
11
10
9
IF Out/VDD3
N.C.
Mixer In
Gnd
VDD1
Gnd
Gnd
LNA In
Functional Block Diagram
LO Input
VDD2
IF Out/VDD3
LNA Out
LNA Cap
N.C.
LO Input
Mixer In
LNA Enable
Mixer
LNA Out
LNA
LNA In
Device
ORDERING INFORMATION
Operating
Temperature Range
TA = – 40° to +85°C
Package
TSSOP–16
TSSOP–16
Tape & Reel*
MRFIC1814
MRFIC1814R2
*2,500 Units per 16 mm, 13 inch reel.
©
Motorola, Inc. 1999
Rev 3
MOTOROLA RF/IF DEVICE DATA
For More Information On This Product,
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ARCHIVE INFORMATION
Freescale Semiconductor, Inc.
MRFIC1814
MAXIMUM RATINGS
(TA = 25°C, unless otherwise noted)
Rating
Supply Voltage
LNA Input Power
LO Input Power
Enable Voltage
Storage Temperature Range
Operating Ambient Temperature
NOTES:
1. Meets Human Body Model (HBM)
≤100
V.
2. ESD data available upon request.
Symbol
VDD
LNAIn
PLO
Enable
Tstg
TA
Value
5.5
10
10
5.5
–65 to 150
–30 to 85
Unit
Vdc
dBm
dBm
Vdc
°C
°C
RECOMMENDED OPERATING RANGES
Parameter
Symbol
fRF
fLO
fIF
VDD
Mixer,
LNA Enable
Mixer,
LNA Enable
Min
1.8
1.5
70
2.7
2.7
0
Typ
–
–
–
–
–
–
Max
2.0
1.8
300
4.5
VDD
0.2
Unit
GHz
GHz
MHz
Vdc
Vdc
Vdc
ARCHIVE INFORMATION
RF Input Frequency
Mixer LO Frequency
IF Output Frequency
Supply Voltage
Enable Voltage, On
Enable Voltage, Off
Freescale Semiconductor, Inc...
ELECTRICAL CHARACTERISTICS
(VDD = 3.0 V, TA = 25°C, LO = 1.65 GHz @ –5.0 dBm, RF = 1.9 GHz @ –30 dBm, Mixer & LNA
Enable = 3.0 V, unless otherwise noted.)
Characteristic
LNA Gain (LNA Enable = 3.0 V)
LNA Gain (LNA Enable = 0 V)
LNA Noise Figure
LNA Input 3rd Order Intercept
LNA Output 1.0 dB Gain Compression Point
Mixer Conversion Gain (into 50
Ω)
Mixer Noise Figure
Mixer Input 3rd Order Intercept
Mixer Output 1.0 dB Gain Compression Point
Total Supply Current (Enable Voltages = 3.0 V, LO Off)
Total Supply Current (Enable Voltages = 3.0 V, LO On)
Standby Mode Current (Enable Voltages = 0 V, LO Off)
Symbol
–
–
–
–
–
–
–
–
–
–
–
–
Min
14
–
–
–
–6.0
5.0
–
–
–8.5
–
–
–
Typ
17
–19
2.5
–7.0
–3.0
8.0
10
–5.0
–5.5
10
13
0.05
Max
–
–
–
–
–
–
–
–
–
17
–
0.25
Unit
dB
dB
dB
dBm
dBm
dB
dB
dBm
dBm
mA
mA
mA
2
For More Information On This Product,
MOTOROLA RF/IF DEVICE DATA
Go to: www.freescale.com
ARCHIVE INFORMATION
Freescale Semiconductor, Inc.
MRFIC1814
Figure 1. Applications Circuit Configuration for 250 MHz IF
Mixer In
IF Out
C7
VDD3
C9
C6
L2
C8
16
15
14
13
12
11
10
9
C5
VDD1
C4
L3
C11
LNA In
ARCHIVE INFORMATION
1
R1
Mixer Enable
C10
2
3
L1
C2
4
C1
VDD2
5
6
C3
7
8
R2
LNA Enable
Freescale Semiconductor, Inc...
LO In
C1, C2, C4
C3
C5
C6, C8
C7
C9
C10
15 pF
3.0 pF
30 pF
10 pF
12 pF
560 pF
3.6 pF
LNA Out
C11
1.6 pF
L1
4.7 nH
L2
10 nH
L3
3.9 nH
R1, R2
10 kΩ
Board Material Glass/Epoxy,
ε
r = 4.45,
0.018 Inch Dielectric Thickness
Figure 2. Equivalent IF Output Circuit
1.0 nH
IF Out
500
Ω
15 pF
MOTOROLA RF/IF DEVICE DATA
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ARCHIVE INFORMATION
Freescale Semiconductor, Inc.
MRFIC1814
Figure 3. LNA Gain versus Frequency
VD = 4.5 V
4.0 V
20
GAIN (dB)
19
18
17
16
1700
fRF = 1.9 GHz
PRF = –25 dBm
TA = 25°C
1750
1800
1850
1900
1950
2000
2050
2100
2.7 V
3.0 V
P1dB , INPUT 1.0 dB COMPRESSION (dBm)
22
21
–17
Figure 4. LNA Input 1.0 dB Compression
versus Frequency
–18
VD = 4.5 V
–19
3.0 V
–20
–21
–22
1700
fRF = 1.9 GHz
TA = 25°C
1800
1900
f, FREQUENCY (MHz)
2000
2100
2.7 V
4.0 V
ARCHIVE INFORMATION
Freescale Semiconductor, Inc...
Figure 5. LNA Gain versus Frequency
P1dB , INPUT 1.0 dB COMPRESSION (dBm)
22
21
LNA GAIN (dB)
20
19
85°C
18
17
16
1700
VD = 3.0 V
fRF = 1.9 GHz
PRF = –25 dBm
1800
1900
f, FREQUENCY (MHz)
2000
2100
TA = 25°C
–17
–18
Figure 6. LNA Input 1.0 dB Compression
versus Frequency
TA = 25°C
–30°C
–30°C
–19
85°C
–20
–21
–22
1700
VD = 3.0 V
fRF = 1.9 GHz
1800
1900
f, FREQUENCY (MHz)
2000
2100
Figure 7. LNA Output Power versus Input Power
5.0
VD = 4.5 V
Pout , OUTPUT POWER (dBm)
Pout , OUTPUT POWER (dBm)
0
–5.0
–10
–15
–20
–25
–40
fRF = 1.9 GHz
TA = 25°C
–35
–30
–25
–20
–15
–10
2.7 V
3.0 V
4.0 V
0
5.0
Figure 8. LNA Output Power versus Input Power
–30°C
85°C
–5.0
–10
–15
–20
–25
–40
VD = 3.0 V
fRF = 1.9 GHz
–35
–30
–25
–20
–15
–10
TA = 25°C
Pin, INPUT POWER (dBm)
Pin, INPUT POWER (dBm)
4
For More Information On This Product,
MOTOROLA RF/IF DEVICE DATA
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ARCHIVE INFORMATION
f, FREQUENCY (MHz)
Freescale Semiconductor, Inc.
MRFIC1814
Figure 9. LNA Noise Figure versus Frequency
3.0
17
15
85°C
13
–30°C
11
TA = 25°C
9.0
7.0
1700
VD = 3.0 V
fIF = 250 MHz
PLO = –5.0 dBm
2000
2100
Figure 10. Mixer Noise Figure versus Frequency
NF, NOISE FIGURE (dB)
2.5
85°C
2.0
TA = 25°C
1.5
VD = 3.0 V
1.0
1700
1800
1900
–30°C
NF, NOISE FIGURE (dB)
2000
2100
1800
1900
f, FREQUENCY (MHz)
ARCHIVE INFORMATION
Freescale Semiconductor, Inc...
Figure 11. Mixer Noise Figure versus Frequency
17
15
13
11
250 MHz
9.0
350 MHz
7.0
1700
1800
1900
f, FREQUENCY (MHz)
VD = 3.0 V
PLO = –5.0 dBm
TA = 25°C
2000
2100
8.0
Figure 12. Mixer Conversion Gain
versus LO Power
VD = 4.5 V
7.5
CONVERSION GAIN (dB)
4.0 V
7.0
6.5
2.7 V
6.0
5.5
5.0
–10
fRF = 1.9 GHz
fLO = 1.65 GHz
TA = 25°C
–8.0
–6.0
–4.0
–2.0
0
3.0 V
fIF = 110 MHz
PLO, LO POWER (dBm)
Figure 13. Mixer Conversion Gain
versus LO Power
9.0
8.0
CONVERSION GAIN (dB)
7.0
6.0
5.0
4.0
3.0
–10
VD = 3.0 V
fRF = 1.9 GHz
fLO = 1.65 GHz
–8.0
–6.0
–4.0
–2.0
0
–30°C
CONVERSION GAIN (dB)
TA = 25°C
85°C
10
Figure 14. Mixer Conversion Gain
versus Frequency
VD = 4.5 V
8.0
6.0
2.7 V
4.0
2.0
0
1800
fIF = 250 MHz
PLO = –5.0 dBm
TA = 25°C
1850
1900
1950
2000
2050
2100
3.0 V
4.0 V
PLO, LO POWER (dBm)
f, FREQUENCY (MHz)
MOTOROLA RF/IF DEVICE DATA
For More Information On This Product,
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ARCHIVE INFORMATION
f, FREQUENCY (MHz)
NF, NOISE FIGURE (dB)
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