HMC491LP3 v00.0503 MICROWAVE CORPORATION GaAs MMIC LOW NOISE AMPLIFIER w/ BYPASS MODE, 3.4 - 3.8 GHz AMPLIFIERS - SMT 8 Typical Applications Features The HMC491LP3 is ideal for: Gain: 16 dB • Wireless Local Loop (WLL) Noise Figure: 2.0 dB • Fixed Wireless Access Single Supply: +3.0 V @ 9 mA • Microwave & VSAT Radios Integrated Bypass Mode 50 Ohm Matched Input/Output 3 x 3 x 1 mm QFN SMT Package 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 LNA Mode Bypass Mode Parameter Units Min. Frequency Range Gain Typ. Max. Min. 3.4 - 3.6 14.5 Gain Variation Over Temperature Typ. Max. Min. 3.6 - 3.8 17 13 15.5 -2.8 Typ. Max. 3.4 - 3.8 MHz -2.3 dB 0.012 0.02 0.012 0.02 Noise Figure 2.2 2.7 2.0 2.5 Input Return Loss 12 17 18 dB Output Return Loss 9 7 11 dB Reverse Isolation 34 33 -- dB 28 dBm Input or Output Power for 1dB Compression (P1dB)* 3 6 4 7 25 0.004 0.008 -- -- dB Input Third Order Intercept (IP3) (-20 dBm Input Power per tone, 1 MHz tone spacing) 1 3 11 dBm Supply Current (Idd) 9 9 0.03 mA * P1dB for LNA Mode is referenced to RFOUT while P1dB for Bypass Mode is referenced to RFIN. 8 - 260 dB / °C 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 HMC491LP3 v00.0503 MICROWAVE CORPORATION GaAs MMIC LOW NOISE AMPLIFIER w/ BYPASS MODE, 3.4 - 3.8 GHz LNA Mode Broadband Gain & Return Loss 20 20 15 19 18 S21 17 S11 5 GAIN (dB) S22 0 -5 -10 16 15 14 13 +25 C -15 12 +85 C -20 11 -40 C -25 2.8 3 3.2 3.4 3.6 3.8 10 3.4 4 3.5 FREQUENCY (GHz) 3.6 3.7 3.8 FREQUENCY (GHz) LNA Mode Input Return Loss vs. Temperature LNA Mode Output Return Loss vs. Temperature 0 0 +25 C +85 C -40 C +25 C -3 +85 C -40 C -5 RETURN LOSS (dB) RETURN LOSS (dB) 8 -10 -15 AMPLIFIERS - SMT 10 RESPONSE (dB) LNA Mode Gain vs. Temperature -6 -9 -12 -20 3.4 3.5 3.6 3.7 -15 3.4 3.8 3.5 FREQUENCY (GHz) LNA Mode Noise Figure vs. Temperature 3.7 3.8 LNA Mode Reverse Isolation vs. Temperature 5 0 4.5 -5 +25 C +85 C -40 C 3.5 +25 C +85 C -40 C -10 ISOLATION (dB) 4 NOISE FIGURE (dB) 3.6 FREQUENCY (GHz) 3 2.5 2 1.5 -15 -20 -25 -30 1 -35 0.5 0 3.4 3.5 3.6 FREQUENCY (GHz) 3.7 3.8 -40 3.4 3.5 3.6 3.7 3.8 FREQUENCY (GHz) 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 8 - 261 MICROWAVE CORPORATION HMC491LP3 v00.0503 GaAs MMIC LOW NOISE AMPLIFIER w/ BYPASS MODE, 3.4 - 3.8 GHz LNA Mode Psat vs. Temperature 12 12 11 11 10 10 9 9 8 8 Psat (dBm) OUTPUT P1dB (dBm) AMPLIFIERS - SMT 8 LNA Mode Output P1dB vs. Temperature 7 6 5 7 6 5 4 4 3 +25 C 3 2 +85 C -40 C 2 1 0 3.4 +85 C -40 C 1 3.5 3.6 3.7 0 3.4 3.8 3.5 FREQUENCY (GHz) LNA Mode Input IP3 vs. Temperature Noise Figure 3 Gain 10 Idd 9 8 18 GAIN (dB) 2 1 0 7 6 16 5 4 14 -1 3 +25 C +85 C -40 C -2 -3 2 12 1 0 10 3.6 FREQUENCY (GHz) 3.7 11 3.8 2.7 3 Vdd (Vdc) 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 3.3 NOISE FIGURE (dB), Idd (mA) 20 3.5 3.8 12 22 4 IIP3 (dBm) 3.7 LNA Mode Gain, Noise Figure & Supply Current vs. Supply Voltage @ 3.6 GHz 6 -4 3.4 3.6 FREQUENCY (GHz) 5 8 - 262 +25 C MICROWAVE CORPORATION HMC491LP3 v00.0503 GaAs MMIC LOW NOISE AMPLIFIER w/ BYPASS MODE, 3.4 - 3.8 GHz Bypass Mode Broadband Insertion Loss & Return Loss Bypass Mode Insertion Loss vs. Temperature 0 8 0 -0.5 -10 -15 S21 S11 S22 -20 -25 2.8 3 -1 -1.5 -2 -2.5 -3 -3.5 -4 -4.5 3.2 3.4 3.6 3.8 -5 3.4 4 +25 C +85 C -40 C 3.5 FREQUENCY (GHz) 3.6 3.7 Bypass Mode Input Return Loss vs. Temperature Bypass Mode Output Return Loss vs. Temperature 0 0 +25 C +25 C -3 +85 C -40 C RETURN LOSS (dB) RETURN LOSS (dB) -5 -10 -15 -20 -25 3.4 +85 C -40 C -6 -9 -12 3.5 3.6 3.7 -15 3.4 3.8 3.5 FREQUENCY (GHz) 29 16 28 INPUT P1dB (dBm) 30 18 IIP3 (dBm) 14 12 10 8 6 4 +25 C +85 C 2 -40 C 3.6 FREQUENCY (GHz) 3.7 3.8 Bypass Mode Input P1dB vs. Temperature 20 3.5 3.6 FREQUENCY (GHz) Bypass Mode Input IP3 vs. Temperature 0 3.4 3.8 FREQUENCY (GHz) AMPLIFIERS - SMT INSERTION LOSS (dB) RESPONSE (dB) -5 3.7 27 26 25 24 23 +25 C +85 C -40 C 22 21 3.8 20 3.4 3.5 3.6 3.7 3.8 FREQUENCY (GHz) 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 8 - 263 MICROWAVE CORPORATION HMC491LP3 v00.0503 GaAs MMIC LOW NOISE AMPLIFIER w/ BYPASS MODE, 3.4 - 3.8 GHz 8 Absolute Maximum Ratings Drain Bias Voltage (Vdd) AMPLIFIERS - SMT RF Input Power (RFin) (Vdd = +3.0 Vdc) Typical Supply Current vs. Vdd +7.0 Vdc Vdd (Vdc) Idd (mA) +2.7 7.6 +3.0 9.0 +3.3 10.2 LNA Mode 0 dBm Bypass Mode +30 dBm Channel Temperature 150 °C Continuous Pdiss (T = 85 °C) (derate 1.8 mW/°C above 85 °C) 0.117 W Thermal Resistance (channel to ground paddle) 556 °C/W Truth Table Storage Temperature -65 to +150 °C Operating Temperature -40 to +85 °C LNA Mode Vctl= Vdd @ 1.6 mA Bypass Mode 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. 8 - 264 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 HMC491LP3 v00.0503 GaAs MMIC LOW NOISE AMPLIFIER w/ BYPASS MODE, 3.4 - 3.8 GHz Pin Number Function Description 1, 5 - 8, 12, 13 N/C No connection necessary. These pins may be connected to RF/DC ground. 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. Interface Schematic 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 8 AMPLIFIERS - SMT Pin Descriptions 8 - 265 MICROWAVE CORPORATION v00.0503 HMC491LP3 GaAs MMIC LOW NOISE AMPLIFIER w/ BYPASS MODE, 3.4 - 3.8 GHz Evaluation PCB AMPLIFIERS - SMT 8 List of Material Item Description J1 - J2 PC Mount SMA RF Connector J3 - J6 DC Pin U1 HMC491LP3 Amplifier PCB* 107431 Eval Board * Circuit Board Material: Rogers 4350 8 - 266 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. 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: AMPLIFIERS - SMT 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 8 - 267