HMC347G8 v02.0605 GaAs MMIC HERMETIC SMT SPDT SWITCH, DC - 8 GHz Typical Applications Features The HMC347G8 is ideal for: Isolation: 42 dB @ 2.5 GHz 30 dB @ 6 GHz • Telecom Infrastructure Insertion Loss: 2 dB @ 6 GHz • Microwave Radio & VSAT Non-Reflective Design • Military Radios, Radar & ECM 8 Lead Hermetic SMT Package • Test Instrumentation General Description Functional Diagram The HMC347G8 is a broadband high isolation nonreflective GaAs MESFET SPDT switch in a 8 lead glass/metal (hermetic) surface mount package. Covering DC to 8 GHz, the switch features >42 dB isolation up to 2 GHz and >25 dB isolation up to 8 GHz. The switch operates using complementary negative control voltage logic lines of -5/0V and requires no bias supply. This SPDT is a good replacement for the HMC132G7 SPDT. SWITCHES - SMT 10 Electrical Specifi cations, TA = +25° C, With 0/-5V Control, 50 Ohm System Parameter 10 - 220 Frequency Min. Typ. Max. Units 2.0 2.2 2.2 2.3 2.6 2.7 dB dB dB Insertion Loss DC - 2.0 GHz DC - 6.0 GHz DC - 8.0 GHz Isolation DC - 2.0 GHz DC - 6.0 GHz DC - 8.0 GHz 39 25 22 43 28 25 dB dB dB 9 6 12 10 dB dB 9 6 dB dB Return Loss “On State” DC - 2.0 GHz DC - 8.0 GHz Return Loss RF1, RF2 “Off State” DC - 2.0 GHz DC - 8.0 GHz 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 Tone Separation) 0.5 - 8.0 GHz 38 43 dBm Switching Characteristics tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) DC - 8.0 GHz 3 6 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 HMC347G8 v02.0605 GaAs MMIC HERMETIC SMT SPDT SWITCH, DC - 8 GHz Insertion Loss Isolation 0 0 -10 ISOLATION (dB) -2 -3 + 25C + 85C - 40C -4 -20 -30 -40 RF1 -50 RF2 -60 -5 -70 0 1 2 3 4 5 6 7 8 9 0 10 1 2 3 4 Return Loss 6 7 8 9 10 10 0.1 and 1 dB Input Compression Point 0 30 RFC RF1, RF2 ON RF1, RF2 OFF 1 dB Compression Point 0.1 dB Compression Point INPUT P1dB (dBm) -5 -10 -15 -20 25 20 15 10 0 1 2 3 4 5 6 7 FREQUENCY (GHz) 8 9 10 0 2 4 6 8 10 FREQUENCY (GHz) Input Third Order Intercept Point 50 45 INPUT IP3 (dBm) RETURN LOSS (dB) 5 FREQUENCY (GHz) FREQUENCY (GHz) SWITCHES - SMT INSERTION LOSS (dB) -1 40 +25C +85C -40C 35 30 0 2 4 6 8 10 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 - 221 HMC347G8 v02.0605 Absolute Maximum Ratings GaAs MMIC HERMETIC SMT SPDT SWITCH, DC - 8 GHz Control Voltages RF Input Power (Vctl = -5V) +27 dBm State Bias Condition Control Voltage Range (A & B) +0.5V to -7.5 Vdc Low 0 to -0.2V @ 10 uA Max. Channel Temperature 150 °C High -5V @ 10 uA Typ. to -7V @ 40 uA Typ. (± 0.5 Vdc) Thermal Resistance (Insertion Loss Path) 440 °C/W Thermal Resistance (Terminated Path) 540 °C/W Storage Temperature -65 to +150 °C Truth Table Control Input A SWITCHES - SMT 10 Operating Temperature -55 to +85 °C ESD Sensitivity (HBM) Class 1A ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Signal Path State B RFC to RF1 RFC to RF2 High Low On Off Low High Off On Caution: Do not “Hot Switch” power levels greater than +13 dBm (Vctl = 0/-5 Vdc). Outline Drawing NOTES: 1. PACKAGE MATERIAL: ALUMINA LOADED BOROSILICATE GLASS. 2. LEAD, BASE, COVER MATERIAL: KOVAR™ (#7052 CORNING). 3. PLATING: ELECTROLYTIC GOLD 50 MICROINCHES MIN., OVER ELECTROLYTIC NICKEL 50 MICROINCHES MIN. 4. DIMENSIONS ARE IN INCHES [MILLIMETERS]. 5. TOLERANCES: ±.005 [0.13] UNLESS OTHERWISE SPECIFIED. 6. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND. 10 - 222 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 HMC347G8 v02.0605 GaAs MMIC HERMETIC SMT SPDT SWITCH, DC - 8 GHz Suggested Driver Circuit SWITCHES - SMT 10 Pin Descriptions Pin Number Function Description 1, 4, 7 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. 2, 3, 8 GND Package bottom must also be connected to PCB RF ground. 5 CTLA See truth table and control voltage table. 6 CTLB 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 10 - 223 HMC347G8 v02.0605 GaAs MMIC HERMETIC SMT SPDT SWITCH, DC - 8 GHz Evaluation PCB SWITCHES - SMT 10 List of Materials for Evaluation PCB 107261 [1] Item Description J1 - J3 PCB Mount SMA RF Connector J4 - J6 DC Pin U1 HMC347G8 SPDT Switch PCB [2] 102088-3 Evaluation PCB [1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Rogers 4350 10 - 224 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. 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 HMC347G8 v02.0605 GaAs MMIC HERMETIC SMT SPDT SWITCH, DC - 8 GHz Notes: SWITCHES - SMT 10 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 - 225