HMC347C8 v01.0404 GaAs MMIC SMT HIGH ISOLATION SPDT SWITCH, DC - 8.0 GHz Typical Applications Features The HMC347C8 is ideal for: Isolation: 50 dB @ 2.5 GHz 36 dB @ 8.0 GHz • Telecom Infrastructure Insertion Loss: 2.0 dB Typical • Microwave Radio & VSAT Non-Reflective Design • Military Radios, Radar & ECM SWITCHES - SMT 8 Surface Mount Ceramic Package • Test Instrumentation Functional Diagram General Description The HMC347C8 is a broadband high isolation nonreflective GaAs MESFET SPDT switch in a non-hermetic surface mount ceramic package. Covering DC to 8.0 GHz, the switch features >50 dB isolation up to 2 GHz and >35 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 SPDT is an excellent replacement for the HMC132C8 SPDT. Electrical Specifications, TA = +25° C, With 0/-5V Control, 50 Ohm System Parameter 8 - 196 Frequency Min. Typ. Max. Units 1.7 2.0 2.4 2.0 2.4 2.8 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 49 35 32 54 40 36 dB dB dB 10 7 6 13 10 9 dB dB dB 9 6 6 dB dB dB Return Loss “On State” DC - 2.0 GHz DC - 6.0 GHz DC - 8.0 GHz Return Loss RF1, RF2 “Off State” DC - 2.0 GHz DC - 6.0 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 HMC347C8 v01.0404 GaAs MMIC SMT HIGH ISOLATION SPDT SWITCH, DC - 8.0 GHz Insertion Loss Isolation 0 0 -10 ISOLATION (dB) -2 -3 RF1 RF2 -20 -30 -40 8 -50 + 25C + 85C - 40C -4 -60 -70 -5 0 1 2 3 4 5 6 7 8 0 1 2 FREQUENCY (GHz) Return Loss 3 4 5 FREQUENCY (GHz) 6 7 8 0.1 and 1 dB Input Compression Point 0 30 INPUT P1dB (dBm) -5 -10 RFC RF1, RF2 ON RF1, RF2 OFF -15 -20 25 20 15 10 0 1 2 3 4 5 6 7 8 0 1 2 3 FREQUENCY (GHz) 4 5 6 7 8 FREQUENCY (GHz) Input Third Order Intercept Point 50 45 INPUT IP3 (dBm) RETURN LOSS (dB) 1 dB Compression Point 0.1 dB Compression Point SWITCHES - SMT INSERTION LOSS (dB) -1 40 +25C +85C -40C 35 30 0 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 8 - 197 HMC347C8 v01.0404 GaAs MMIC SMT HIGH ISOLATION SPDT SWITCH, DC - 8.0 GHz Absolute Maximum Ratings SWITCHES - SMT 8 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 Operating Temperature -55 to +85 °C ESD Sensitivity (HBM) Class 1A Truth Table Control Input A 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). ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS 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. 8 - 198 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 HMC347C8 v01.0404 GaAs MMIC SMT HIGH ISOLATION SPDT SWITCH, DC - 8.0 GHz Suggested Driver Circuit SWITCHES - SMT 8 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 8 - 199 HMC347C8 v01.0404 GaAs MMIC SMT HIGH ISOLATION SPDT SWITCH, DC - 8.0 GHz Evaluation PCB SWITCHES - SMT 8 List of Materials for Evaluation PCB 107261 [1] Item Description J1 - J3 PCB Mount SMA RF Connector J4 - J6 DC Pin U1 HMC347C8 SPDT Switch PCB [2] 102088 Evaluation PCB [1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Rogers 4350 8 - 200 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 HMC347C8 v01.0404 GaAs MMIC SMT HIGH ISOLATION SPDT SWITCH, DC - 8.0 GHz Notes: SWITCHES - SMT 8 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 8 - 201