HMC321LP4 / 321LP4E v03.0805 GaAs MMIC SP8T 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: >30 dB@ 6 GHz • Broadband Low Insertion Loss: 2.5 dB@ 6 GHz • Fiber Optics Integrated Positve Supply 3:8 TTL Decoder • Switched Filter Banks 4x4 mm SMT Package • Wireless below 8 GHz Functional Diagram General Description The HMC321LP4 & HMC321LP4E are broadband nonreflective GaAs MESFET SP8T 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 three. The switch operates using a positive control voltage of 0/+5 volts, and requires a fixed bias of +5v. This switch is suitable for usage in 50-Ohm or 75-Ohm systems. SWITCHES - SMT 10 * DC blocking capacitors are required at ports RFC and RF1, 2, 3, 4, 5, 6, 7, 8. Their value will determine the lowest transmission frequency. Electrical Specifi cations, TA = +25° C, With 0/+5V Control, 50 Ohm System Parameter 10 - 172 Frequency Min. Typ. Max. Units 2.3 2.5 2.7 2.7 2.9 3.1 dB dB dB Insertion Loss DC - 2.0 GHz DC - 4.0 GHz DC - 8.0 GHz Isolation DC - 2.0 GHz DC - 4.0 GHz DC - 6.0 GHz DC - 8.0 GHz 35 30 25 20 40 35 30 25 dB dB dB dB DC - 4.0 GHz DC - 8.0 GHz 8 7 12 10 dB dB Return Loss “On State” Return Loss (RF1 - RF8) “Off State” 2.0 - 8.0 GHz 7 12 dB Input Power for 1 dB Compression 0.5 - 8.0 GHz 19 23 dBm Input Third Order Intercept (Two-tone Input Power = +7 dBm Each Tone, 1 MHz Spacing) 0.5 - 8.0 GHz 33 40 dBm Switching Characteristics tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) DC - 8.0 GHz 50 150 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 HMC321LP4 / 321LP4E v03.0805 GaAs MMIC SP8T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC* - 8 GHz Insertion Loss vs. Temperature Isolation 0 0 RF1 RF2 RF3 RF4 RF5 RF6 RF7 RF8 -10 ISOLATION (dB) -2 -3 +25 C -40 C +85 C -4 -20 -30 -40 -50 -60 -70 -5 0 1 2 3 4 5 6 7 8 0 9 1 2 3 Return Loss 5 6 7 8 9 10 0.1 and 1 dB Input Compression Point 30 INPUT COMPRESSION POINT (dBm) 0 -5 -10 -15 RFC RF1-8 ON RF1-8 OFF -20 -25 25 20 0.1db Compression Point 1dB Compression Point 15 10 0 1 2 3 4 5 6 7 8 1 9 2 3 FREQUENCY (GHz) 4 5 6 7 8 FREQUENCY (GHz) Input Third Order Intercept Point INPUT THIRD ORDER INTERCEPT (dBm) RETURN LOSS (dB) 4 FREQUENCY (GHz) FREQUENCY (GHz) SWITCHES - SMT INSERTION LOSS (dB) -1 50 45 40 35 30 1 2 3 4 5 6 7 8 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 - 173 HMC321LP4 / 321LP4E v03.0805 GaAs MMIC SP8T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC* - 8 GHz Bias Voltage & Current Truth Table Vdd Range = +5.0 Vdc ± 10% Control Input Vdd (Vdc) Idd (Typ.) (mA) Idd (Max.) (mA) +5.0 5.0 9.0 Control Voltages SWITCHES - SMT 10 10 - 174 State Bias Condition Low 0 to +0.8 Vdc @ 5 uA Typical High +2.0 to +5.0 Vdc @ 25 uA Typical Signal Path State A B C RFCOM to: Low Low Low RF1 High Low Low RF2 Low High Low RF3 High High Low RF4 Low Low High RF5 High Low High RF6 Low High High RF7 High High High RF8 Note: DC blocking capacitors are required at ports RFC and RF1, 2, 3, 4, 5, 6, 7, 8. 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 HMC321LP4 / 321LP4E v03.0805 GaAs MMIC SP8T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC* - 8 GHz Absolute Maximum Ratings Bias Voltage Range (Port Vdd) +7.0 Vdc Control Voltage Range (A, B, & C) -0.5V to Vdd +1.0 Vdc Storage Temperature -65 to +150 °C Operating Temperature -40 to +85 °C Maximum Input Power Vdd = +5V +26 dBm ESD Sensitivity (HBM) Class 1A ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS 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 HMC321LP4 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 HMC321LP4E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 Package Marking [3] [1] H321 XXXX [2] H321 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 - 175 HMC321LP4 / 321LP4E v03.0805 GaAs MMIC SP8T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC* - 8 GHz Pin Descriptions SWITCHES - SMT 10 10 - 176 Pin Number Function Description 1, 3, 5, 7, 12, 14, 16, 18, 21, 23 GND Package bottom has exposed metal paddle that must also be connected to PCB RF ground. 2, 4, 6, 13, 15, 17, 19, 22, 24 RF1 - RF8 & RFC This pin is DC coupled and matched to 50 Ohm. Blocking capacitors are required. 8 VDD Supply Voltage +5V ± 10% 9 CTLC See truth table and control voltage table. 10 CTLB See truth table and control voltage table. 11 CTLA See truth table and control voltage table. 20 N/C This pin should be connected to PCB RF ground to maximize isolation. 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 HMC321LP4 / 321LP4E v03.0805 GaAs MMIC SP8T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC* - 8 GHz Evaluation PCB SWITCHES - SMT 10 List of Materials for Evaluation PCB 104769 [1] Item Description J1 - J9 PCB Mount SMA RF Connector J10 - J14 DC Pin C1 - C9 100 pF Capacitor, 0402 Pkg. U1 HMC321LP4 / HMC321LP4E SP8T Switch PCB [2] 104687 Evaluation PCB 1.73” x 1.46” [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 - 177