HMC344LP3 / 344LP3E v05.0505 SWITCHES - SMT 8 GaAs MMIC SP4T NON-REFLECTIVE SWITCH, DC - 8.0 GHz Typical Applications Features This switch is suitable for usage in DC - 8.0 GHz 50Ohm or 75-Ohm systems: Broadband Performance: DC - 8.0 GHz • Broadband Low Insertion Loss: 1.8 dB@ 6 GHz • Fiber Optics Integrated 2:4 TTL Decoder • Switched Filter Banks LP3 SMT Package High Isolation: 40 dB@ 6 GHz • Wireless below 8 GHz Functional Diagram General Description The HMC344LP3 & HMC344LP3E 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 and extends the frequency coverage of Hittite’s SP4T switch product line. This switch also includes an on board binary decoder circuit which reduces the required logic control lines to two. The switch operates using a negative control voltage of 0/-5V, and requires a fixed bias of -5V. Electrical Specifications, TA = +25° C, With 0/-5V Control, 50 Ohm System Parameter 8 - 184 Frequency Min. Typ. Max. Units 1.6 1.8 2.1 2.0 2.2 2.5 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 43 36 34 31 48 41 40 36 dB dB dB dB 12 9 8 5 15 12 11 8 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 “Off State” DC - 8.0 GHz 7 10 dB Input Power for 1 dB Compression 0.5 - 8.0 GHz 17 21 dBm Input Third Order Intercept (Two-Tone Input Power = +7 dBm Each Tone) 0.5 - 8.0 GHz 37 40 dBm Switching Characteristics tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) DC - 8.0 GHz 35 150 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 HMC344LP3 / 344LP3E v05.0505 GaAs MMIC SP4T NON-REFLECTIVE SWITCH, DC - 8.0 GHz Insertion Loss vs. Temperature Isolation 0 0 ISOLATION (dB) INSERTION LOSS (dB) -10 RF1 RF2 RF3 RF4 -1 -2 -3 +25 C +85 C -40 C -4 -20 -30 -40 8 -50 -5 -70 0 1 2 3 4 5 6 7 8 0 9 1 2 3 FREQUENCY (GHz) Return Loss RETURN LOSS (dB) INPUT COMPRESSION POINT (dBm) RFC RF1,2,3,4 On RF1,2,3,4 Off -5 -10 -15 -20 -25 1 2 3 4 5 6 7 8 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 6 7 8 9 10 9 1dB Compression Point 0.1dB Compression Point 2 3 FREQUENCY (GHz) 4 5 6 7 8 9 FREQUENCY (GHz) Bias Voltage & Current Input Third Order Intercept Point iNPUT THIRD ORDER INTERCEPT (dBm) 5 0.1 and 1 dB Input Compression Point 0 0 4 FREQUENCY (GHz) SWITCHES - SMT -60 45 Vee Range = -5.0 Vdc ± 10% 44 43 Vee (Vdc) Iee (Typ.) (mA) Iee (Max.) (mA) 42 -5.0 3.0 6.0 41 40 39 Control Voltages RF1 RF2 RF3 RF4 38 37 State 36 Bias Condition Low -3V to 0 Vdc @ 60 uA Typical High -5 to -4.2 Vdc @ 5 uA Typical 35 1 2 3 4 5 6 7 8 9 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 8 - 185 HMC344LP3 / 344LP3E v05.0505 GaAs MMIC SP4T NON-REFLECTIVE SWITCH, DC - 8.0 GHz Absolute Maximum Ratings SWITCHES - SMT 8 Bias Voltage Range (Vee) -7.0 Vdc Control Voltage Range (A & B) Vee -0.5V to +1.0 Vdc Channel Temperature 150 °C Thermal Resistance (Insertion Loss Path) 143 °C/W Thermal Resistance (Terminated Path) 1,030 °C/W Storage Temperature -65 to +150 °C Operating Temperature -40 to +85 °C Maximum Input Power +24 dBm ESD Sensitivity (HBM) Class 1A Truth Table Control Input Signal Path State A B RFCOM to: High High RF1 Low High RF2 High Low RF3 Low Low RF4 ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Outline Drawing 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 PCB LAND PATTERN. Package Information Part Number Package Body Material Lead Finish MSL Rating HMC344LP3 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 HMC344LP3E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 Package Marking [3] [1] 344 XXXX [2] 344 XXXX [1] Max peak reflow temperature of 235 °C [2] Max peak reflow temperature of 260 °C [3] 4-Digit lot number XXXX 8 - 186 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 HMC344LP3 / 344LP3E v05.0505 GaAs MMIC SP4T NON-REFLECTIVE SWITCH, DC - 8.0 GHz Pin Descriptions 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 if RF line potential is not equal to 0V. 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 VEE 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: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com 8 SWITCHES - SMT Pin Number 8 - 187 HMC344LP3 / 344LP3E v05.0505 GaAs MMIC SP4T NON-REFLECTIVE SWITCH, DC - 8.0 GHz TTL Interface Circuit SWITCHES - SMT 8 8 - 188 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 HMC344LP3 / 344LP3E v05.0505 GaAs MMIC SP4T NON-REFLECTIVE SWITCH, DC - 8.0 GHz Evaluation PCB SWITCHES - SMT 8 List of Materials for Evaluation PCB 105311 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 HMC344LP3 / HMC344LP3E SP4T Switch PCB [2] 104708 Evaluation PCB 1.29”x1.55” [1] Reference this number when ordering complete evaluation PCB [1] 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 8 - 189