HMC997LC4 v01.0112 Variable Gain Amplifier - SMT VARIABLE GAIN AMPLIFIER 17 - 27 GHz Typical Applications Features The HMC997LC4 is ideal for: Wide Gain Control Range: 15 dB • Point-to-Point Radio Single Control Voltage • Point-to-Multi-Point Radio Output IP3 @ Max Gain: +31 dBm • EW & ECM Subsystems Output P1dB: +24 dBm No External Matching • Ka-Band Radar 24 Lead 4x4 mm SMT Package: 16 mm2 • Test Equipment General Description Functional Diagram The HMC997LC4 is a GaAs MMIC PHEMT analog variable gain amplifier and / or driver amplifier which operates between 17 and 27 GHz. Ideal for microwave radio applications, the amplifier provides up to 20.5 dB of gain, output P1dB of up to +24 dBm, and up to +31 dBm of output IP3 at maximum gain, while requiring only 170 mA from a +5V supply. A gain control voltage (Vctrl) is provided to allow variable gain control up to 15 dB. Gain flatness is excellent making the HMC997LC4 ideal for EW, ECM and radar applications. The HMC997LC4 is housed in a RoHS compliant 4 x 4 mm ceramic QFN leadless package and is compatible with high volume surface mount manufacturing. Electrical Specifications, TA = +25°C, Vdd1, 2, 3 = 5V, Vctrl= -4.5V, Idd = 170 mA* Parameter Min. Frequency Range Typ. Max. Min. Max. Units 21 - 27 GHz 19 dB ±0.7 dB 0.02 dB/ °C 14 dB 4.0 3.5 dB Input Return Loss 13 12 dB Output Return Loss 17 19 dB 24 dBm Gain 17 - 21 Typ. 17.0 Gain Flatness 0.02 12 Noise Figure Output Power for 1 dB Compression (P1dB) 16 ±0.3 Gain Variation Over Temperature Gain Control Range 20 21 15 24 12 21 Saturated Output Power (Psat) 25 24.5 dBm Output Third Order Intercept (IP3) 31 30 dBm Total Supply Current (Idd) 170 170 mA *Set Vctrl = -4.5V and then adjust Vgg1, 2 between -2V to 0V to achieve Idd = 170mA typical. 1 For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC997LC4 v01.0112 VARIABLE GAIN AMPLIFIER 17 - 27 GHz Gain vs. Control Voltage Range Gain vs. Control Voltage 25 Vctl = -3.4V Vctl = -3.1V 17 GHz 19 GHz 21 GHz 22 GHz 25 GHz 27 GHz 20 15 GAIN (dB) GAIN (dB) 20 Vctl = -2,5V Vctl = -2.8V 10 Vctl = -1.6V Vctl = -2.2V Vctl = -1.9V 5 15 10 5 Vctl = -1.0V 0 0 17 19 21 23 25 27 -4 -3.7 -3.4 FREQUENCY (GHz) -2.5 -2.2 -1.9 -1.6 -1.3 -1 Gain vs. Temperature 30 30 20 +25C +85C -40C 26 10 GAIN (dB) RESPONSE (dB) -2.8 CONTROL VOLTAGE (V) Broadband Gain & Return Loss S21 S11 S22 0 22 18 -10 14 -20 10 -30 15 17 19 21 23 25 27 17 29 19 21 23 25 27 FREQUENCY (GHz) FREQUENCY (GHz) Input Return Loss vs. Temperature Output Return Loss vs. Temperature 0 0 +25C +85C -40C +25C +85C -40C -5 RETURN LOSS (dB) -5 RETURN LOSS (dB) -3.1 Variable Gain Amplifier - SMT 25 Vctl = -4.5V -10 -15 -20 -25 -10 -15 -20 -25 -30 -30 17 19 21 23 FREQUENCY (GHz) 25 27 17 19 21 23 25 27 FREQUENCY (GHz) For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 2 HMC997LC4 v01.0112 VARIABLE GAIN AMPLIFIER 17 - 27 GHz Input Return Loss @ Control Voltage Extreme Output Return Loss @ Control Voltage Extreme 0 -4.5 Volts -1.0 Volts -4.5 Volts -1.0 Volts -5 RETURN LOSS (dB) RETURN LOSS (dB) -5 -10 -15 -20 -25 -10 -15 -20 -25 -30 -30 17 19 21 23 25 27 17 19 FREQUENCY (GHz) 23 25 27 Noise Figure vs. Control Voltage 7 14 +25C +85C -40C 12 NOISE FIGURE (dB) 6 5 4 3 2 17 GHz 18 GHz 20 GHz 22 GHz 24 GHz 25 GHz 26 GHz 10 8 6 4 1 0 2 17 18 19 20 21 22 23 24 25 26 27 -4 -3.5 FREQUENCY (GHz) -2.5 -2 -1.5 -1 Psat vs. Temperature 30 30 Vctrl = -4.5V Vctrl = -4.5V 25 20 20 Psat (dBm) 25 15 Vctrl = -1V 10 -3 CONTROL VOLTAGE (V) P1dB vs. Temperature P1dB (dBm) 21 FREQUENCY (GHz) Noise Figure vs. Temperature NOISE FIGURE (dB) Variable Gain Amplifier - SMT 0 15 Vctrl = -1V 10 +25C +85C -40C 5 +25C +85C -40C 5 0 0 17 19 21 23 25 27 FREQUENCY (GHz) 17 19 21 23 25 27 FREQUENCY (GHz) [1] Tested with broadband bias tee on RF ports and C1 = 10,000pF [2] C1, C6 and C8 = 100pF, L1 = 24nF 3 For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC997LC4 v01.0112 VARIABLE GAIN AMPLIFIER 17 - 27 GHz Reverse Isolation vs. Temperature Output IP3 vs. Temperature 0 -10 +25C +85C -40C -40 -50 25 20 Vctrl=-1V, Pout=+14dBm -60 15 -70 -80 10 16 18 20 22 24 26 28 17 18 19 20 IP3 and Gain @ 18 GHz Pin = -20 dBm 35 35 30 30 IP3 (dBm), GAIN (dB) 40 25 20 15 10 0 -4.5 OIP3 GAIN IIP3 -4 -3.5 -2.5 23 24 25 26 27 25 20 15 10 OIP3 GAIN IIP3 5 -3 22 IP3 and Gain @ 22 GHz Pin = -20 dBm 40 5 21 FREQUENCY (GHz) FREQUENCY (GHz) IP3 (dBm), GAIN (dB) +25C +85C -40C Vctrl=-4.5V, Pout=+14dBm 30 -30 IP3 (dBm) ISOLATION (dB) -20 35 -2 -1.5 0 -4.5 -1 -4 -3.5 -3 -2.5 -2 -1.5 Variable Gain Amplifier - SMT 40 -1 CONTROL VOLTAGE (V) CONTROL VOLTAGE (V) IP3 and Gain @ 26 GHz Pin = -20 dBm 40 IP3 (dBm), GAIN (dB) 35 OIP3 GAIN IIP3 30 25 20 15 10 5 0 -4.5 -4 -3.5 -3 -2.5 -2 -1.5 -1 CONTROL VOLTAGE (V) For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 4 HMC997LC4 v01.0112 VARIABLE GAIN AMPLIFIER 17 - 27 GHz Bias Voltage Absolute Maximum Ratings Variable Gain Amplifier - SMT Drain Bias Voltage (Vdd1, 2, 3) +5.5V Vdd1,2,3 (V) Idd Total (mA) 170 Gate Bias Voltage (Vgg1, 2) -3 to 0V +5V Gain Control Voltage (Vctrl) -5 to 0V Vgg1,2 (V) Igg Total (mA) RF Power Input (RFIN) +5 dBm 0V to -2V <0.1 mA Channel Temperature 175 °C Continuous Pdiss (T = 85 °C) (derate 10.2 mW/°C above 85 °C) [1] 0.92 W Thermal Resistance (Channel to ground paddle) 97.6 °C/W Storage Temperature -65 to +150 °C ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Operating Temperature -40 to +85 °C ESD Sensitivity (HBM) Class 0 Passed 100V Outline Drawing NOTES: 1. PACKAGE BODY MATERIAL: ALUMINA. 2. LEAD AND GROUND PADDLE PLATING: GOLD FLASH OVER NICKEL. 3. DIMENSIONS ARE IN INCHES (MILLIMETERS). 4.LEAD SPACING TOLERANCE IS NON-CUMULATIVE. 5. PACKAGE WARP SHALL NOT EXCEED 0.05MM DATUM – C – 6.ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND. Package Information Part Number Package Body Material Lead Finish HMC997LC4 Alumina, White Gold over Nickel MSL Rating MSL1 [1] Package Marking [2] H997 XXXX [1] Max peak reflow temperature of 260 °C [2] 4-Digit lot number XXXX 5 For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC997LC4 v01.0112 VARIABLE GAIN AMPLIFIER 17 - 27 GHz Pin Descriptions Function Description 1, 2, 6, 8, 10, 11, 13, 17, 18, 20, 21, 23 N/C The pins are not connected internally: however all data shown herein was measured with these pins connected to RF/DC ground externally 3, 5, 14, 16 GND These pins and the exposed ground paddle must be connected to RF/DC ground. 4 RFIN This pad is AC coupled and matched to 50 Ohm. 7, 12 Vgg1, 2 Gate control for amplifier. Adjust voltage to achieve typical Idd. Please follow “MMIC Amplifier Biasing Procedure” application note. 9 Vctrl Gain control Voltage for the amplifier. See assembly diagram for required external components. 15 RFOUT This pad is AC coupled and matched to 50 Ohm. 19, 22, 24 Vdd3, 2, 1 Drain Bias Voltage for the amplifier. See assembly diagram for required external components Interface Schematic For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] Variable Gain Amplifier - SMT Pin Number 6 HMC997LC4 v01.0112 VARIABLE GAIN AMPLIFIER 17 - 27 GHz Variable Gain Amplifier - SMT Application Circuit 7 For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC997LC4 v01.0112 VARIABLE GAIN AMPLIFIER 17 - 27 GHz Variable Gain Amplifier - SMT Evaluation PCB List of Materials for Evaluation PCB EVAL01-HMC997LC4 [1] Item Description J1, J4 PCB Mount SMA RF Connectors J5 - J10 DC Pin C1 - C6 100 pF Capacitor, 0402 Pkg. C7 - C12 1000 pF Capacitor, 0603 Pkg. C13 - C18 2.2 µF Capacitor, CASE A U1 HMC997LC4 Variable Gain Amplifier PCB [2] 122172 Evaluation PCB [1] Reference this number when ordering complete evaluation PCB The circuit board used in the 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. [2] Circuit Board Material: Arlon 25FR For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 8