MICROWAVE CORPORATION HMC345LP3 v03.0604 GaAs MMIC SP4T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC* - 8.0 GHz Typical Applications Features This switch is suitable for usage in DC - 8.0 GHz 50-Ohm or 75-Ohm systems: Broadband Performance: DC - 8.0 GHz High Isolation: 35 dB@ 6 GHz • Broadband Low Insertion Loss: 2.2 dB@ 6 GHz • Fiber Optics Integrated Positive Supply 2:4 TTL Decoder • Switched Filter Banks 3 mm x 3 mm x 1 mm SMT Package • Wireless below 8 GHz Functional Diagram General Description The HMC345LP3 is a broadband non-reflective GaAs MESFET SP4T switch in a low cost leadless surface mount package. Covering DC to 8 GHz, this switch offers high isolation and low insertion loss. This switch also includes an on board binary decoder circuit which reduces the required logic control lines to two. The switch operates using a positive control voltage of 0/+5V, and requires a fixed bias of +5V. SWITCHES - SMT 14 * Blocking capacitors are required at ports RFC and RF1, 2, 3, & 4. Their value will determine the lowest transmission frequency. Electrical Specifications, TA = +25° C, With 0/+5V Control, 50 Ohm System Parameter Min. Typ. Max. Units 2.0 2.2 2.4 2.4 2.6 2.9 dB dB dB Insertion Loss DC - 2.0 GHz DC - 6.0 GHz DC - 8.0 GHz Isolation DC - 2.0 GHz DC - 4.0 GHz DC - 6.0 GHz DC - 8.0 GHz 37 32 31 27 42 37 35 32 dB dB dB dB Return Loss “On State” DC - 2.0 GHz DC - 4.0 GHz DC - 6.0 GHz DC - 8.0 GHz 10 8 7 6 13 11 10 9 dB dB dB dB Return Loss (RF1 - RF4) “Off State” 2.0 - 8.0 GHz 6 10 dB Input Power for 1 dB Compression 2.0 - 8.0 GHz 17 21 dBm Input Third Order Intercept (Two-Tone Input Power = +7 dBm Each Tone, 1MHz Tone Separation) 2.0 - 8.0 GHz 37 45 dBm 50 120 ns ns Switching Characteristics tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) 14 - 194 Frequency DC - 8.0 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 HMC345LP3 v03.0604 MICROWAVE CORPORATION GaAs MMIC SP4T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC - 8.0 GHz GaAs MMIC SUB-HARMONICALLY Isolation PUMPED Insertion Loss vs. Temperature 0 MIXER 17 - 25 GHz 0 -10 RF1 RF2 RF3 RF4 -20 ISOLATION (dB) -2 -3 +25 C -40 C +85 C -4 -30 -40 -50 -60 -5 -70 0 1 2 3 4 5 6 7 8 9 0 1 2 3 FREQUENCY (GHz) Return Loss -5 RETURN LOSS (dB) INPUT COMPRESSION POINT (dBm) RFC RF1,2,3,4 On RF1,2,3,4 Off -10 -15 -20 -25 1 2 5 6 7 8 9 0.1 and 1 dB Input Compression Point 0 0 4 FREQUENCY (GHz) 3 4 5 6 7 8 14 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 0.1dB Compression Point 1dB Compression Point 1 9 2 3 4 5 6 FREQUENCY (GHz) FREQUENCY (GHz) INPUT THIRD ORDER INTERCEPT (dBm) Input Third Order Intercept Point 60 7 8 SWITCHES - SMT INSERTION LOSS (dB) -1 55 50 45 40 RF1 RF2 RF3 RF4 35 30 1 2 3 4 5 6 7 8 FREQUENCY (GHz) * Isolation is recorded above insertion loss & measured at output of switch. 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 14 - 195 MICROWAVE CORPORATION HMC345LP3 v03.0604 GaAs MMIC SP4T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC - 8.0 GHz Truth Table Control Input Signal Path State A B RFCOM to: Low Low RF1 High Low RF2 Low High RF3 High High RF4 Bias Voltage & Current Vdd Range = +5.0 Vdc ± 10% Vdd (Vdc) Idd (Typ.) (mA) Idd (Max.) (mA) +5.0 3.0 6.0 State Bias Condition Low 0 to +0.8 Vdc @ 5 uA Typical High +2.0 to +5.0 Vdc @ 60 uA Typical SWITCHES - SMT 14 Control Voltages 14 - 196 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 HMC345LP3 v03.0604 GaAs MMIC SP4T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC - 8.0 GHz Absolute Maximum Ratings Bias Voltage Range (Vdd) +7.0 Vdc Control Voltage Range (A & B) -0.5V to Vdd +1.0 Vdc Channel Temperature 150 °C Thermal Resistance (Insertion Loss Path) 143 °C/W Thermal Resistance (Terminated Path) 1030 °C/W Storage Temperature -65 to +150 °C Operating Temperature -40 to +85 °C Maximum Input Power +24 dBm Note: DC blocking capacitors are required at ports RFC and RF1, 2, 3, & 4. Their value will determine the lowest transmission frequency. Outline Drawing SWITCHES - SMT 14 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. 9. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED PCB LAND PATTERN. 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 14 - 197 MICROWAVE CORPORATION HMC345LP3 v03.0604 GaAs MMIC SP4T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC - 8.0 GHz Pin Descriptions SWITCHES - SMT 14 14 - 198 Pin Number Function Description 1, 4, 9, 12, 15 RF4, RF3, RF2, RF1, RFC This pin is DC coupled and matched to 50 Ohm. Blocking capacitors are required. 2, 3, 10, 11, 13 N/C This pin should be connected to PCB RF ground to maximize isolation. 5, 14, 16 GND Package bottom has exposed metal paddle that must also be connected to PCB RF ground. 6 VDD Supply Voltage +5V ± 10% 7 CTLB See truth table and control voltage table. 8 CTLA See truth table and control voltage table. 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 MICROWAVE CORPORATION v03.0604 HMC345LP3 GaAs MMIC SP4T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC - 8.0 GHz Evaluation PCB List of Material Item Description J1 - J7 PC Mount SMA RF Connector J8 - J11 DC Pin C1 - C7 100 pF Capacitor, 0402 Pkg. C8 10k pF Capacitor, 0603 Pkg. U1 HMC345LP3 SP4T Switch PCB* 104708 Evaluation PCB 1.29”x1.55” 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. SWITCHES - SMT 14 * Circuit Board Material: Rogers 4350 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 14 - 199