HMC270MS8G / 270MS8GE v04.0607 GaAs MMIC SPDT SWITCH NON-REFLECTIVE, DC - 8 GHz Typical Applications Features The HMC270MS8G / HMC270MS8GE is ideal for DC - 8.0 GHz applications: Broadband Performance: DC - 8 GHz • CATV Non-Reflective Design • MMDS & WirelessLAN Low Cost MSOP-8 Package: 14.8 mm2 Very High Isolation: 45 dB @ 6 GHz • Wireless Local Loop Functional Diagram General Description The HMC270MS8G & HMC270MS8GE are broadband non-reflective GaAs SPDT switches in 8 lead MSOP grounded base surface mount plastic packages. Covering DC to 8 GHz, the switch offers excellent isolation from 70 to 35 dB. The negative control voltage of -5 volts allows operation down to DC. If positive control is required along with high isolation, see the DC to 3.5 GHz HMC284MS8G nonreflective SPDT. SWITCHES - SMT 10 Electrical Specifi cations, TA = +25° C, With 0/-5V Control, 50 Ohm system Parameter Min. Typ. Max. Units 0.8 1.0 1.5 1.2 1.7 2.4 dB dB dB Insertion Loss Isolation DC - 2.0 GHz DC - 4.0 GHz DC - 6.0 GHz DC - 8.0 GHz 43 42 37 28 48 47 45 33 dB dB dB dB Return Loss “On State” DC - 2.0 GHz DC - 6.0 GHz DC - 8.0 GHz 11 9 7 14 12 10 dB dB dB Return Loss RF1, RF2 “Off State” DC - 2.0 GHz DC - 6.0 GHz DC - 8.0 GHz 15 13 10 20 18 15 dB dB dB Input Power for 1 dB Compression 0.5 - 8.0 GHz 20 23 dBm Input third Order Intercept (Two-Tone Input Power = +7 dBm Each Tone) 0.5 - 8.0 GHz 33 36 dBm Switching Characteristics DC - 8.0 GHz 20 50 ns ns tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) 10 - 144 Frequency DC - 2.0 GHz DC - 6.0 GHz DC - 8.0 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 HMC270MS8G / 270MS8GE v04.0607 GaAs MMIC SPDT SWITCH NON-REFLECTIVE, DC - 8 GHz Insertion Loss Isolation 0 0 ISOLATION (dB) INSERTION LOSS (dB) -10 -1 -2 RF1 RF2 -3 RF1 RF2 -20 -30 -40 -50 -4 -60 -5 -70 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 26 COMPRESSION POINT (dBm) 0 RFC RF1,2 On RF1,2 Off -5 -10 -15 -20 -25 24 1 dB Compression Point 0.1 dB Compression Point 22 20 18 0 1 2 3 4 5 6 7 8 0 9 1 2 3 FREQUENCY (GHz) 4 5 6 7 8 9 FREQUENCY (GHz) Input Third Order Intercept Point 45 THIRD ORDER INTERCEPT (dBm) RETURN LOSS (dB) 4 FREQUENCY (GHz) SWITCHES - SMT 0 40 35 30 25 0 1 2 3 4 5 6 7 8 9 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 - 145 HMC270MS8G / 270MS8GE v04.0607 GaAs MMIC SPDT SWITCH NON-REFLECTIVE, DC - 8 GHz Control Voltages State Bias Condition Low 0 to -0.2V @ 10 uA Typ. High -5V @ 35 uA Typ. to -7V @ 100 uA Typ (±0.5 Vdc) Truth Table Control Input Signal Path State A B RFC to RF1 RFC to RF2 High Low ON OFF Low High OFF ON RFC, RF1, & RF2 should be at <100 mV DC potential. Otherwise, DC blocking capacitors are recommended. Choose value for lowest frequency of operation. Do not “HOT” switch power levels >+13 dBm (Vctl = 0/-5Vdc) SWITCHES - SMT 10 10 - 146 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 HMC270MS8G / 270MS8GE v04.0607 GaAs MMIC SPDT SWITCH NON-REFLECTIVE, DC - 8 GHz Absolute Maximum Ratings Max RF Input Power, Vctl = -5V +24 dBm Control Voltage Range +0.5 to -7.5 Vdc Storage Temperature -65 to +150 °C Operating Temperature -40 to +85 °C 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. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE. 4. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE. 5. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND. Package Information Part Number Package Body Material Lead Finish MSL Rating HMC70MS8G Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 HMC270MS8GE RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 Package Marking [3] [1] H270 XXXX [2] H270 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 - 147 HMC270MS8G / 270MS8GE v04.0607 GaAs MMIC SPDT SWITCH NON-REFLECTIVE, DC - 8 GHz Suggested Driver Circuit for HMC270MS8G SWITCHES - SMT 10 10 - 148 Simple driver using inexpensive standard logic ICs provides fast switching using minimum DC current while translating from standard positive voltage TTL or CMOS logic to negative voltage GaAs IC logic. 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 HMC270MS8G / 270MS8GE v04.0607 GaAs MMIC SPDT SWITCH NON-REFLECTIVE, DC - 8 GHz Eval Board Layout (Top View) 10 SWITCHES - SMT *R1 = R2 = 100 Ohm. These are optional resistors. List of Materials for Evaluation PCB 107949 [1] Item Description J1 - J3 PCB Mount SMA Connector J4 - J5 DC Pin C1 - C3 Chip Capacitor, 0402 Pkg, choose value for lowest frequency of operation. PCBs are provided with 100 ~ 300 pF capacitors. User may jumper capacitor mounting gaps on PCB to allow operation to “DC”. R1 - R2 100 Ohm Resistor, 0402 Pkg. U1 HMC270MS8G / HMC270MS8GE SPDT Switch PCB [2] 102807 Evaluation PCB 2.0” x 2.6” The circuit board used in the final application should be generated with proper RF circuit design techniques. Signal lines at the RF ports should have 50 ohm impedance and the package ground leads and exposed ground paddle 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. [1] Reference this number when ordering complete evaluation PCB [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 - 149