HMC349LP4C / 349LP4CE v02.1205 HIGH ISOLATION SPDT NON-REFLECTIVE SWITCH, DC - 4 GHz Typical Applications Features The HMC349LP4C / HMC349LP4CE is ideal for: High Isolation: 67 dB @ 1 GHz 62 dB @ 2 GHz • Basestation Infrastructure Single Positive Control: 0/+5V • MMDS & 3.5 GHz WLL +52 dBm Input IP3 • CATV/CMTS Non-Reflective Design • Test Instrumentation All Off State Functional Diagram 16 mm2 Leadless QFN SMT Package General Description The HMC349LP4C & HMC349LP4CE are high isolation non-reflective DC to 4 GHz GaAs MESFET SPDT switches in low cost leadless surface mount packages. The switch is ideal for cellular/PCS/3G basestation applications yielding 60 to 65 dB iso-lation, low 0.9 dB insertion loss and +52 dBm input IP3. Power handling is excellent up through the 3.5 GHz WLL band with the switch offering a P1dB compression point of +31 dBm. On-chip circuitry allows a single positive voltage control of 0/+5 Volts at very low DC currents. An enable input (EN) set to logic high will put the switch in an “all off” state. SWITCHES - SMT 10 Electrical Specifi cations, TA = +25° C, Vctl = 0/+5 Vdc, Vdd = +5 Vdc, 50 Ohm System Parameter Insertion Loss DC - 1.0 GHz DC - 2.0 GHz DC - 3.0 GHz DC - 4.0 GHz Isolation (RFC to RF1/RF2) DC - 1.0 GHz DC - 4.0 GHz Return Loss (On State) DC - 2.0 GHz DC - 3.0 GHz DC - 4.0 GHz Return Loss (Off State) 0.5 - 4.0 GHz Input Power for 1 dB Compression 0.25 - 4.0 GHz Input Third Order Intercept (Two-Tone Input Power = +7 dBm Each Tone) 0.25 - 1.0 GHz 1.0 - 2.0 GHz 2.0 - 3.0 GHz 3.0 - 4.0 GHz Switching Speed DC - 4.0 GHz tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) 10 - 238 Frequency Min. 60 55 27 Typ. Max. Units 0.9 1.0 1.2 1.4 1.2 1.3 1.5 1.7 dB dB dB dB 67 62 dB dB 20 15 13 dB dB dB 15 dB 31 dBm 52 50 49 46 dBm dBm dBm dBm 50 120 ns ns For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC349LP4C / 349LP4CE v02.1205 HIGH ISOLATION SPDT NON-REFLECTIVE SWITCH, DC - 4 GHz Insertion Loss Return Loss 0 -5 -1 RETURN LOSS (dB) -2 +25C +85C -40C -3 -4 RFC RF1, RF2 ON RF1, RF2 OFF -10 -15 -20 -25 -5 -30 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 0 0.5 1 1.5 FREQUENCY (GHz) 2 2.5 3 3.5 4 4.5 5 FREQUENCY (GHz) 10 Note: RFC is refl ective in “all off” state. Isolation Between Ports RFC and RF1 / RF2 0 0 -10 -10 -20 -30 RFC-RF1 ON RFC-RF2 ON -20 RF1 RF2 ALL OFF ISOLATION (dB) ISOLATION (dB) Isolation Between Ports RF1 and RF2 -40 -50 -30 -40 -50 -60 -60 -70 -70 -80 -80 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 0 0.5 1 1.5 FREQUENCY (GHz) 2.5 3 3.5 4 4.5 5 FREQUENCY (GHz) 0.1 and 1 dB Input Compression Point Input Third Order Intercept Point 60 34 +25C +85C -40C 32 56 30 IP3 (dBm) INPUT COMPRESSION (dBm) 2 SWITCHES - SMT INSERTION LOSS (dB) 0 28 26 52 48 0.1 dB Compression Point 1 dB Compression Point 24 44 22 40 20 0 1 2 FREQUENCY (GHz) 3 4 0 1 2 3 4 FREQUENCY (GHz) For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com 10 - 239 HMC349LP4C / 349LP4CE v02.1205 HIGH ISOLATION SPDT NON-REFLECTIVE SWITCH, DC - 4 GHz Absolute Maximum Ratings SWITCHES - SMT 10 10 - 240 RF Input Power (Vctl = 0V/+5V) (0.25 - 4 GHz) +30 dBm (T = +85 °C) Supply Voltage Range (Vdd) +7 Vdc Control Voltage Range (Vctl) -1V to Vdd +1V Hot Switch Power Level (Vdd = +5V) +30 dBm Channel Temperature 150 °C Continuous Pdiss (T = 85 °C) (derate 12 mW/°C above 85 °C) 0.75 W Thermal Resistance 87 °C/W Storage Temperature -65 to +150 °C Operating Temperature -40 to +85 °C ESD Sensitivity (HBM) Class 1A Note: DC blocking capacitors are required at ports RFC, RF1 and RF2. Their value will determine the lowest transmission frequency. ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Bias Voltage & Current Vdd Range = +5.0 Vdc ± 10% Vdd (Vdc) Idd (Typ.) (mA) Idd (Max.) (mA) +5.0 2.3 5.0 TTL/CMOS Control Voltages State Bias Condition Low 0 to +0.8 Vdc @ <1 μA Typical High +2.0 to +5.0 Vdc @ 30 μA Typical Truth Table Control Input Signal Path State Vctl EN RFC - RF1 RFC - RF2 Low Low OFF ON High Low ON OFF Low High OFF OFF High High OFF OFF For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC349LP4C / 349LP4CE v02.1205 HIGH ISOLATION SPDT NON-REFLECTIVE SWITCH, DC - 4 GHz Outline Drawing SWITCHES - SMT 10 NOTES: 1. LEADFRAME MATERIAL: COPPER ALLOY 2. DIMENSIONS ARE IN INCHES [MILLIMETERS] 3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE. 4. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM. PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM. 5. PACKAGE WARP SHALL NOT EXCEED 0.05mm. 6. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND. 7. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED LAND PATTERN. Package Information Part Number Package Body Material Lead Finish MSL Rating HMC349LP4C Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 HMC349LP4CE RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 Package Marking [3] [1] H349 XXXX [2] H349 XXXX [1] Max peak reflow temperature of 235 °C [2] Max peak reflow temperature of 260 °C [3] 4-Digit lot number XXXX For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com 10 - 241 HMC349LP4C / 349LP4CE v02.1205 HIGH ISOLATION SPDT NON-REFLECTIVE SWITCH, DC - 4 GHz Pin Descriptions SWITCHES - SMT 10 10 - 242 Pin Number Function Description 1 Vdd Supply Voltage. 2 Vctl Control input. See truth and control voltage tables. 3, 9, 12 RFC, RF1, RF2 These pins are DC coupled and matched to 50 Ohms. Blocking capacitors are required. 4, 6, 7, 8, 13, 14, 15, 16 N/C No connection. These pins may be connected to RF ground. Performance will not be affected. 5 EN Enable. See truth and control voltage tables. 10, 11 GND Package bottom must also be connected to PCB RF ground. Interface Schematic For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC349LP4C / 349LP4CE v02.1205 HIGH ISOLATION SPDT NON-REFLECTIVE SWITCH, DC - 4 GHz Evaluation PCB SWITCHES - SMT 10 List of Materials for Evaluation PCB 106975 [1] Item Description J1 - J3 PC Mount SMA RF Connector J4 - J8 DC Pin C1 - C3 100 pF Capacitor, 0402 Pkg. U1 HMC349LP4C / HMC349LP4CE SPDT Switch PCB [2] 106965 Evaluation PCB [1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Rogers 4350 The circuit board used in the final application should be generated with proper RF circuit design techniques. Signal lines at the RF port should have 50 ohm impedance and the package ground leads and backside ground slug should be connected directly to the ground plane similar to that shown above. The evaluation circuit board shown above is available from Hittite Microwave Corporation upon request. For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com 10 - 243