v00.0503
MICROWAVE CORPORATION
HMC491LP3
GaAs MMIC LOW NOISE AMPLIFIER w/ BYPASS MODE, 3.4 - 3.8 GHz
Features
Gain: 16 dB Noise Figure: 2.0 dB Single Supply: +3.0 V @ 9 mA Integrated Bypass Mode 50 Ohm Matched Input/Output 3 x 3 x 1 mm QFN SMT Package
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AMPLIFIERS - SMT
Typical Applications
The HMC491LP3 is ideal for: • Wireless Local Loop (WLL) • Fixed Wireless Access • Microwave & VSAT Radios
Functional Diagram
General Description
The HMC491LP3 is a versatile, integrated, Low Noise Amplifier (LNA) featuring a bypass mode intended for 3.4 to 3.8 GHz Fixed Wireless & WLL applications. The amplifier provides 16 dB of gain, 2 dB noise figure and +3 dBm input IP3 while requiring only 9 mA from a +3V supply. Using a single control line, the LNA can be switched into a low loss 2.2 dB bypass mode reducing the current consumption to 20 µA. A low cost, leadless 3x3 mm QFN surface mount package (LP3) houses the amplifier. No external RF matching components are required.
Electrical Specifications, TA = +25° C, Vdd = +3V
LNA Mode Parameter Min. Frequency Range Gain Gain Variation Over Temperature Noise Figure Input Return Loss Output Return Loss Reverse Isolation Input or Output Power for 1dB Compression (P1dB)* Input Third Order Intercept (IP3) (-20 dBm Input Power per tone, 1 MHz tone spacing) Supply Current (Idd) 3 14.5 Typ. 3.4 - 3.6 17 0.012 2.2 12 9 34 6 1 9 4 0.02 2.7 13 Max. Min. Typ. 3.6 - 3.8 15.5 0.012 2.0 17 7 33 7 3 9 25 0.02 2.5 -2.8 Max. Min. Typ. 3.4 - 3.8 -2.3 0.004 -18 11 -28 11 0.03 0.008 -Max. MHz dB dB / °C dB dB dB dB dBm dBm mA LNA Mode Bypass Mode Units
* P1dB for LNA Mode is referenced to RFOUT while P1dB for Bypass Mode is referenced to RFIN.
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For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com
v00.0503
MICROWAVE CORPORATION
HMC491LP3
GaAs MMIC LOW NOISE AMPLIFIER w/ BYPASS MODE, 3.4 - 3.8 GHz
LNA Mode Broadband Gain & Return Loss
20 15 10 RESPONSE (dB) 5 0 -5 -10 -15 -20 -25 2.8
S21 S11
LNA Mode Gain vs. Temperature
20 19 18 17 16 15 14 13 12 11
+25 C +85 C -40 C
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AMPLIFIERS - SMT
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GAIN (dB) 3.8 4
S22
3
3.2
3.4
3.6
10 3.4
3.5
3.6 FREQUENCY (GHz)
3.7
3.8
FREQUENCY (GHz)
LNA Mode Input Return Loss vs. Temperature
0
+25 C
LNA Mode Output Return Loss vs. Temperature
0
+25 C +85 C -40 C
RETURN LOSS (dB)
RETURN LOSS (dB) 3.8
-5
+85 C -40 C
-3
-6
-10
-9
-15
-12
-20 3.4
3.5
3.6 FREQUENCY (GHz)
3.7
-15 3.4
3.5
3.6 FREQUENCY (GHz)
3.7
3.8
LNA Mode Noise Figure vs. Temperature
5 4.5 4 NOISE FIGURE (dB) 3.5 3 2.5 2 1.5 1 0.5 0 3.4 3.5 3.6 FREQUENCY (GHz) 3.7 3.8
+25 C +85 C -40 C
LNA Mode Reverse Isolation vs. Temperature
0 -5 -10 ISOLATION (dB) -15 -20 -25 -30 -35 -40 3.4
+25 C +85 C -40 C
3.5
3.6 FREQUENCY (GHz)
3.7
3.8
For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com
MICROWAVE CORPORATION
v00.0503
HMC491LP3
GaAs MMIC LOW NOISE AMPLIFIER w/ BYPASS MODE, 3.4 - 3.8 GHz
8
AMPLIFIERS - SMT
LNA Mode Output P1dB vs. Temperature
12 11 10 OUTPUT P1dB (dBm) 9 7 6 5 4 3 2 1 0 3.4 3.5 3.6 FREQUENCY (GHz) 3.7 3.8
+25 C +85 C -40 C
LNA Mode Psat vs. Temperature
12 11 10 9 Psat (dBm) 8 7 6 5 4 3 2 1 0 3.4 3.5 3.6 FREQUENCY (GHz) 3.7 3.8
+25 C +85 C -40 C
8
LNA Mode Input IP3 vs. Temperature
6 5 4 3 IIP3 (dBm)
LNA Mode Gain, Noise Figure & Supply Current vs. Supply Voltage @ 3.6 GHz
22
Noise Figure Gain
12 11 10 9 8 7 6 5 4 3 2 1 0 3 Vdd (Vdc) 3.3 NOISE FIGURE (dB), Idd (mA)
20 18 GAIN (dB) 16 14
+25 C +85 C -40 C
Idd
2 1 0 -1 -2 -3 -4 3.4 3.5 3.6 FREQUENCY (GHz) 3.7
12 10 3.8 2.7
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For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com
MICROWAVE CORPORATION
v00.0503
HMC491LP3
GaAs MMIC LOW NOISE AMPLIFIER w/ BYPASS MODE, 3.4 - 3.8 GHz
Bypass Mode Broadband Insertion Loss & Return Loss
0
Bypass Mode Insertion Loss vs. Temperature
0 -0.5 INSERTION LOSS (dB)
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AMPLIFIERS - SMT
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-5 RESPONSE (dB)
-1 -1.5 -2 -2.5 -3 -3.5 -4 -4.5
+25 C +85 C -40 C
-10
-15
S21 S11 S22
-20
-25 2.8
3
3.2
3.4
3.6
3.8
4
-5 3.4
3.5
3.6 FREQUENCY (GHz)
3.7
3.8
FREQUENCY (GHz)
Bypass Mode Input Return Loss vs. Temperature
0
+25 C
Bypass Mode Output Return Loss vs. Temperature
0
+25 C
-5 RETURN LOSS (dB)
-10
RETURN LOSS (dB)
+85 C -40 C
-3
+85 C -40 C
-6
-15
-9
-20
-12
-25 3.4
3.5
3.6 FREQUENCY (GHz)
3.7
3.8
-15 3.4
3.5
3.6 FREQUENCY (GHz)
3.7
3.8
Bypass Mode Input IP3 vs. Temperature
20 18 16 14 IIP3 (dBm) 12 10 8 6 4 2 0 3.4 3.5 3.6 FREQUENCY (GHz) 3.7
+25 C +85 C -40 C
Bypass Mode Input P1dB vs. Temperature
30 29 28 INPUT P1dB (dBm) 27 26 25 24 23 22 21 3.8 20 3.4 3.5 3.6 FREQUENCY (GHz) 3.7
+25 C +85 C -40 C
3.8
For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com
MICROWAVE CORPORATION
v00.0503
HMC491LP3
GaAs MMIC LOW NOISE AMPLIFIER w/ BYPASS MODE, 3.4 - 3.8 GHz
8
AMPLIFIERS - SMT
Absolute Maximum Ratings
Drain Bias Voltage (Vdd) RF Input Power (RFin) (Vdd = +3.0 Vdc) Channel Temperature Continuous Pdiss (T = 85 °C) (derate 1.8 mW/°C above 85 °C) Thermal Resistance (channel to ground paddle) Storage Temperature Operating Temperature +7.0 Vdc LNA Mode 0 dBm Bypass Mode +30 dBm 150 °C
Typical Supply Current vs. Vdd
Vdd (Vdc) +2.7 +3.0 +3.3 Idd (mA) 7.6 9.0 10.2
0.117 W
Truth Table
556 °C/W -65 to +150 °C -40 to +85 °C LNA Mode Bypass Mode Vctl= Vdd @ 1.6 mA Vctl= 0Vdc @ -13 µA Vdd= +3V ±10%
Outline Drawing
NOTES: 1. MATERIAL PACKAGE BODY: LOW STRESS INJECTION MOLDED PLASTIC SILICA AND SILICON IMPREGNATED. 2. LEAD AND GROUND PADDLE MATERIAL: COPPER ALLOY 3. LEAD AND GROUND PADDLE PLATING: Sn/Pb SOLDER 4. DIMENSIONS ARE IN INCHES [MILLIMETERS]. 5. LEAD SPACING TOLERANCE IS NON-CUMULATIVE 6. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM. PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM. 7. PACKAGE WARP SHALL NOT EXCEED 0.05mm. 8. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND.
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For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com
MICROWAVE CORPORATION
v00.0503
HMC491LP3
GaAs MMIC LOW NOISE AMPLIFIER w/ BYPASS MODE, 3.4 - 3.8 GHz
Pin Descriptions
Pin Number 1, 5 - 8, 12, 13 Function N/C Description No connection necessary. These pins may be connected to RF/DC ground. Interface Schematic
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AMPLIFIERS - SMT
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2, 4, 9, 11, 15
GND
These pins must be connected to RF/DC ground.
3
RF IN
This pin is AC coupled and matched to 50 Ohms.
10
RF OUT
This pin is AC coupled and matched to 50 Ohms.
14
Vdd
Power supply voltage.
16
Vctl
Control voltage. Vctl= Vdd for LNA mode. Vctl= 0V for bypass mode.
For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com
MICROWAVE CORPORATION
v00.0503
HMC491LP3
GaAs MMIC LOW NOISE AMPLIFIER w/ BYPASS MODE, 3.4 - 3.8 GHz
8
AMPLIFIERS - SMT
Evaluation PCB
List of Material
Item J1 - J2 J3 - J6 U1 PCB* Description PC Mount SMA RF Connector DC Pin HMC491LP3 Amplifier 107431 Eval Board
* Circuit Board Material: Rogers 4350
The circuit board used in the final application should use RF circuit design techniques. Signal lines should have 50 ohm impedance while the package ground leads and exposed paddle should be connected directly to the ground plane similar to that shown. A sufficient number of VIA holes should be used to connect the top and bottom ground planes. The evaluation circuit board shown is available from Hittite upon request.
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For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com
MICROWAVE CORPORATION
v00.0503
HMC491LP3
GaAs MMIC LOW NOISE AMPLIFIER w/ BYPASS MODE, 3.4 - 3.8 GHz
Notes:
8
AMPLIFIERS - SMT
For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com
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