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| HMC270MS8G / 270MS8GE v04.0607 GaAs MMIC SPDT SWITCH NON-REFLECTIVE, DC - 8.0 GHz Typical Applications The HMC270MS8G / HMC270MS8GE is ideal for DC - 8.0 GHz applications: * CATV * MMDS & WirelessLAN * Wireless Local Loop Features Broadband Performance: DC - 8 GHz Very High Isolation: 45 dB @ 6 GHz Non-Reflective Design Low Cost MSOP-8 Package: 14.8 mm2 9 SWITCHES - SMT 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. Electrical Specifications, TA = +25 C, With 0/-5V Control, 50 Ohm system Parameter Insertion Loss Frequency DC - 2.0 GHz DC - 6.0 GHz DC - 8.0 GHz DC - 2.0 GHz DC - 4.0 GHz DC - 6.0 GHz DC - 8.0 GHz "On State" DC - 2.0 GHz DC - 6.0 GHz DC - 8.0 GHz DC - 2.0 GHz DC - 6.0 GHz DC - 8.0 GHz 0.5 - 8.0 GHz 0.5 - 8.0 GHz DC - 8.0 GHz 20 50 ns ns 43 42 37 28 11 9 7 15 13 10 20 33 Min. Typ. 0.8 1.0 1.5 48 47 45 33 14 12 10 20 18 15 23 36 Max. 1.2 1.7 2.4 Units dB dB dB dB dB dB dB dB dB dB dB dB dB dBm dBm Isolation Return Loss Return Loss RF1, RF2 Input Power for 1 dB Compression Input third Order Intercept (Two-Tone Input Power = +7 dBm Each Tone) Switching Characteristics tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) "Off State" 9 - 138 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 - 8.0 GHz Insertion Loss 0 Isolation 0 -10 INSERTION LOSS (dB) -1 ISOLATION (dB) -20 -30 -40 -50 -60 -5 0 1 2 3 4 5 6 7 8 9 FREQUENCY (GHz) -70 0 1 2 3 4 5 6 7 8 9 FREQUENCY (GHz) RF1 RF2 -2 RF1 RF2 -3 -4 9 SWITCHES - SMT 9 - 139 Return Loss 0 RFC RF1,2 On RF1,2 Off 0.1 and 1 dB Input Compression Point 26 COMPRESSION POINT (dBm) 25 24 23 22 21 20 19 18 1 dB Compression Point 0.1 dB Compression Point -5 RETURN LOSS (dB) -10 -15 -20 -25 0 1 2 3 4 5 6 7 8 9 FREQUENCY (GHz) 0 1 2 3 4 5 6 7 8 9 FREQUENCY (GHz) Input Third Order Intercept Point 45 THIRD ORDER INTERCEPT (dBm) 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 HMC270MS8G / 270MS8GE v04.0607 GaAs MMIC SPDT SWITCH NON-REFLECTIVE, DC - 8.0 GHz Control Voltages State Low High Bias Condition 0 to -0.2V @ 10 uA Typ. -5V @ 35 uA Typ. to -7V @ 100 uA Typ (0.5 Vdc) Truth Table Control Input A High Low B Low High Signal Path State RFC to RF1 ON OFF RFC to RF2 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) 9 SWITCHES - SMT 9 - 140 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 - 8.0 GHz Absolute Maximum Ratings Max RF Input Power, Vctl = -5V Control Voltage Range Storage Temperature Operating Temperature ESD Sensitivity (HBM) +24 dBm +0.5 to -7.5 Vdc -65 to +150 C -40 to +85 C Class 1A ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Outline Drawing 9 SWITCHES - SMT 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 HMC70MS8G HMC270MS8GE Package Body Material Low Stress Injection Molded Plastic RoHS-compliant Low Stress Injection Molded Plastic Lead Finish Sn/Pb Solder 100% matte Sn MSL Rating MSL1 MSL1 [1] Package Marking [3] H270 XXXX H270 XXXX [2] [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 9 - 141 HMC270MS8G / 270MS8GE v04.0607 GaAs MMIC SPDT SWITCH NON-REFLECTIVE, DC - 8.0 GHz Suggested Driver Circuit for HMC270MS8G 9 SWITCHES - SMT 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. 9 - 142 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 - 8.0 GHz Eval Board Layout (Top View) 9 *R1 = R2 = 100 Ohm. These are optional resistors. List of Materials for Evaluation PCB 107949 [1] Item J1 - J3 J4 - J5 Description PCB Mount SMA Connector DC Pin 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". 100 Ohm Resistor, 0402 Pkg. HMC270MS8G / HMC270MS8GE SPDT Switch 102807 Evaluation PCB 2.0" x 2.6" C1 - C3 R1 - R2 U1 PCB [2] 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 9 - 143 SWITCHES - SMT |
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