HMC345LP3 / 345LP3E v04.0805 GaAs MMIC SP4T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC* - 8 GHz Typical Applications Features This switch is suitable for usage in DC - 8.0 GHz 50Ohm or 75-Ohm systems: Broadband Performance: DC - 8 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 x 3 mm SMT Package • Wireless below 8 GHz Functional Diagram General Description The HMC345LP3 & HMC345LP3E are broadband non-reflective GaAs MESFET SP4T switches in low cost leadless surface mount packages. 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 10 * Blocking capacitors are required at ports RFC and RF1, 2, 3, & 4. Their value will determine the lowest transmission frequency. Electrical Specifi cations, TA = +25° C, With 0/+5V Control, 50 Ohm System Parameter 10 - 208 Frequency 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 10 8 7 6 13 11 10 9 dB dB dB dB Return Loss “On State” DC - 2.0 GHz DC - 4.0 GHz DC - 6.0 GHz DC - 8.0 GHz 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 Switching Characteristics tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) DC - 8.0 GHz 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 HMC345LP3 / 345LP3E v04.0805 GaAs MMIC SP4T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC* - 8 GHz Insertion Loss vs. Temperature Isolation 0 0 -10 RF1 RF2 RF3 RF4 ISOLATION (dB) -2 -3 +25 C -40 C +85 C -4 -20 -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 6 7 8 9 10 0.1 and 1 dB Input Compression Point 25 INPUT COMPRESSION POINT (dBm) 0 RFC RF1-RF4 ON RF1-RF4 OFF -5 RETURN LOSS (dB) 4 FREQUENCY (GHz) -10 -15 -20 -25 22 19 16 0.1dB Compression Point 1.0dB Compression Point 13 10 0 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 SWITCHES - SMT INSERTION LOSS (dB) -1 FREQUENCY (GHz) FREQUENCY (GHz) INPUT THIRD ORDER INTERCEPT (dBm) Input Third Order Intercept Point 60 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: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com 10 - 209 HMC345LP3 / 345LP3E v04.0805 GaAs MMIC SP4T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC* - 8 GHz Absolute Maximum Ratings Bias Voltage Range (Vdd) Control Voltage Range (A & B) +7.0 Vdc SWITCHES - SMT Vdd Range = +5.0 Vdc ± 10% -0.5V to Vdd +1.0 Vdc Vdd (Vdc) Idd (Typ.) (mA) Idd (Max.) (mA) Channel Temperature 150 °C +5.0 3.0 6.0 Thermal Resistance (Insertion Loss Path) 143 °C/W Thermal Resistance (Terminated Path) 1030 °C/W State Bias Condition Storage Temperature -65 to +150 °C Low 0 to +0.8 Vdc @ 5 uA Typical Operating Temperature -40 to +85 °C High +2.0 to +5.0 Vdc @ 60 uA Typical Maximum Input Power +24 dBm ESD Sensitivity (HBM) Class 1A Control Voltages 10 10 - 210 Bias Voltage & Current Truth Table Control Input ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS A Signal Path State B RFCOM to: Low Low RF1 High Low RF2 Low High RF3 High High RF4 Note: DC blocking capacitors are required at ports RFC and RF1, 2, 3, & 4. Their value will determine the lowest transmission frequency. 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 HMC345LP3 / 345LP3E v04.0805 GaAs MMIC SP4T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC* - 8 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 HMC345LP3 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 HMC345LP3E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 Package Marking [3] [1] 345 XXXX [2] 345 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 - 211 HMC345LP3 / 345LP3E v04.0805 GaAs MMIC SP4T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC* - 8 GHz Pin Descriptions 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 SWITCHES - SMT 10 10 - 212 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 HMC345LP3 / 345LP3E v04.0805 GaAs MMIC SP4T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC* - 8 GHz Evaluation PCB SWITCHES - SMT 10 List of Materials for Evaluation PCB 108333 [1] Item Description J1 - J7 PCB Mount SMA RF Connector J8 - J11 DC Pin C1 - C7 100 pF Capacitor, 0402 Pkg. C8 10k pF Capacitor, 0603 Pkg. U1 HMC345LP3 / HMC345LP3E SP4T Switch PCB [2] 104708 Evaluation PCB 1.29”x1.55” [1] Reference this number when ordering complete evaluation PCB 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. [2] Circuit Board Material: Rogers 4350 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 - 213