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| v02.1203 MICROWAVE CORPORATION HMC234C8 GaAs MMIC SMT HIGH ISOLATION SPDT SWITCH, DC - 8.0 GHz Features Isolation: 52 dB @ 2.0 GHz 40 dB @ 6.0 GHz Insertion Loss: 1.6 dB Typical @ 6.0 GHz Non-Reflective Design Surface Mount Ceramic Package Typical Applications The HMC234C8 is ideal for: * Telecom Infrastructure * Microwave Radio & VSAT * Military Radios, Radar & ECM * Test Instrumentation Functional Diagram General Description The HMC234C8 is a broadband high isolation non-reflective GaAs MESFET SPDT switch in a non-hermetic surface mount ceramic package. Covering DC to 8.0 GHz, the switch features >52 dB isolation up to 2 GHz and >38 dB isolation up to 8.0 GHz. The switch operates using complementary negative control voltage logic lines of -5/0V and requires no bias supply. This product is an excellent pin-for-pin replacement to the SMDI SSW124. 14 SWITCHES - SMT Electrical Specifications, TA = +25 C, With 0/-5V Control, 50 Ohm System Parameter Frequency DC - 2.0 GHz DC - 6.0 GHz DC - 8.0 GHz DC - 2.0 GHz DC - 6.0 GHz DC - 8.0 GHz "On State" DC - 2.0 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 22 40 47 35 33 Min. Typ. 1.4 1.6 2.1 52 40 38 15 12 14 9 6 26 46 Max. 1.7 1.9 2.4 Units dB dB dB dB dB dB dB dB dB dB dB dBm dBm Insertion Loss Isolation Return Loss Return Loss RF1, RF2 "Off State" Input Power for 1 dB Compression Input Third Order Intercept (Two-Tone Input Power= +7 dBm Each Tone, 1 MHz Tone Separation) Switching Characteristics tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) DC - 8.0 GHz 3 5 ns ns 14 - 112 For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com v02.1203 MICROWAVE CORPORATION HMC234C8 GaAs MMIC SMT HIGH ISOLATION SPDT SWITCH, DC - 8.0 GHz GaAs MMIC Insertion Loss 0 INSERTION LOSS (dB) -1 SUB-HARMONICALLY Isolation MIXER 17 - 25 GHz PUMPED 0 -10 -20 ISOLATION (dB) RF1 RF2 -2 -30 -40 -50 -60 -70 -3 + 25C + 85C - 40C -4 -5 0 1 2 3 4 5 6 7 8 FREQUENCY (GHz) -80 0 1 2 3 4 5 FREQUENCY (GHz) 6 7 8 Return Loss 0 -5 RETURN LOSS (dB) -10 -15 -20 -25 -30 0 1 2 3 4 5 FREQUENCY (GHz) 6 7 8 RFC RF1, RF2 ON RF1, RF2 OFF 0.1 and 1 dB Input Compression Point 35 30 INPUT P1dB (dBm) 1 dB Compression Point 0.1 dB Compression Point 14 SWITCHES - SMT 14 - 113 25 20 15 0 1 2 3 4 5 FREQUENCY (GHz) 6 7 8 Input Third Order Intercept Point 60 55 INPUT IP3 (dBm) 50 45 40 35 30 0 1 2 3 4 5 FREQUENCY (GHz) 6 7 8 + 25C + 85C - 40C For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com v02.1203 MICROWAVE CORPORATION HMC234C8 GaAs MMIC SMT HIGH ISOLATION SPDT SWITCH, DC - 8.0 GHz Control Voltages State Low High Bias Condition 0 to -0.2V @ 10 uA Max. -5V @ 10 uA Typ. to -7V @ 45 uA Typ. Truth Table Control Input A High Low B Low High Signal Path State RFC to RF1 ON OFF RFC to RF2 OFF ON Absolute Maximum Ratings RF Input Power (Vctl= -5V) (0.5 - 8 GHz) Control Voltage Range (A & B) Channel Temperature Thermal Resistance Storage Temperature +30 dBm (@ +50 C) +1.0V to -7.5 Vdc 150 C 94 C/W -65 to +150 C -40 to +85 C Caution: Do not "Hot Switch" power levels greater than +26 dBm (Vctl = 0/-5 Vdc). 14 SWITCHES - SMT Operating Temperature Outline Drawing NOTES: 1. PACKAGE BODY MATERIAL: WHITE ALUMINA 92% 2. LEAD, PACKAGE BOTTOM MATERIAL: COPPER 3. PLATING: ELECTROLYTIC GOLD 100-200 MICROINCHES, OVER ELECTROLYTIC NICKEL 100-250 MICROINCHES. 4. DIMENSIONS ARE IN INCHES [MILLIMETERS]. 5. PACKAGE LENGTH AND WIDTH DIMENSIONS DO NOT INCLUDE LID SEAL PROTRUSION .005 PER SIDE. 6. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND. 14 - 114 For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com v02.1203 MICROWAVE CORPORATION HMC234C8 GaAs MMIC SMT HIGH ISOLATION SPDT SWITCH, DC - 8.0 GHz Suggested Driver Circuit Pin Descriptions Pin Number Function Description Interface Schematic 14 SWITCHES - SMT 14 - 115 1, 3, 4 GND Package bottom must also be connected to PCB RF ground. 2, 5, 8 RFC, RF1, RF2 This pin is DC coupled and matched to 50 Ohm. Blocking capacitors are required if RF line potential is not equal to 0V. 6 B See truth table and control voltage table. 7 A See truth table and control voltage table. For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com v02.1203 MICROWAVE CORPORATION HMC234C8 GaAs MMIC SMT HIGH ISOLATION SPDT SWITCH, DC - 8.0 GHz Evaluation PCB 14 SWITCHES - SMT List of Material Item J1 - J3 J4 - J6 U1 PCB* Description PC Mount SMA RF Connector DC Pin HMC234C8 SPDT Switch 105707 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 package bottom 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. * Circuit Board Material: Rogers 4350 14 - 116 For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com v02.1203 MICROWAVE CORPORATION HMC234C8 GaAs MMIC SMT HIGH ISOLATION SPDT SWITCH, DC - 8.0 GHz Notes: 14 SWITCHES - SMT For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com 14 - 117 |
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