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| v01.0101 HMC172QS24 GaAs MMIC SP6T SWITCH DC - 2.5 GHz Features Low Insertion Loss (1 GHz): 0.6 dB Integrated 3:6 Decoder 24 Lead QSOP Package Typical Applications The HMC172QS24 is ideal for: * Basestation Infrastructure Functional Diagram General Description The HMC172QS24 is a low-cost SP6T switch in a 24-lead QSOP package for use in antenna diversity, switched filter banks, gain/attenuation selection, and general channel multiplexing applications. The switch can control signals up to 2.5 GHz and is especially suited for 800-1000 MHz and 17002000 MHz basestation applications. A 3:6 decoder is integrated on the switch, requiring only 3 control lines and a negative bias to select each RF path. The 3:6 decoder replaces 12 control lines normally required by GaAs SP6T switches. Switch outputs are reflective shorts when "off". The QSOP24 package occupies the same area as a 14-lead SOIC. See positive bias/TTL SP6T version HMC252QS24. 14 SWITCHES - SMT 14 - 1 Electrical Specifications, TA = +25 C, For 0/-5V Control and Vee = -5V in a 50 Ohm System Parameter Frequency DC - 0.5 GHz DC - 1.0 GHz DC - 2.0 GHz DC - 2.5 GHz DC - 0.5 GHz DC - 1.0 GHz DC - 2.0 GHz DC - 2.5 GHz DC - 1.0 GHz DC - 2.0 GHz DC - 2.5 GHz 50 MHz 0.5 - 2.5 GHz 50 MHz 0.5 - 2.5 GHz DC - 2.5 GHz tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) 25 50 ns ns 36 31 22 19 19 7 5 Min. Typ. 0.5 0.6 1.0 1.5 41 35 26 23 23 11 8 22 24 35 40 Max. 0.8 0.9 1.5 2.0 Units dB dB dB dB dB dB dB dB dB dB dB dBm dBm dBm dBm Insertion Loss Isolation Return Loss Input Power for 1 dB Compression Input Third Order Intercept Switching Characteristics 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 Online at www.hittite.com v01.0101 HMC172QS24 GaAs MMIC SP6T SWITCH DC - 2.5 GHz GaAs MMIC Insertion Loss 0 -0.5 SUB-HARMONICALLY PUMPED MIXER 17 - 25 GHz Isolation 0 -10 INSERTION LOSS (dB) -1 -1.5 -2 -2.5 -3 0 1 2 3 FREQUENCY (GHz) ISOLATION (dB) -20 -30 -40 -50 -60 0 1 2 3 FREQUENCY (GHz) Return Loss Isolation Between several RF I/0s -20 RF6-5 -30 14 RETURN LOSS (dB) 0 -5 -10 -15 -20 -25 -30 -35 -40 0 1 2 3 FREQUENCY (GHz) S22 S11 RFC ISOLATION (dB) SWITCHES - SMT RF1-2 -40 RF2-3 RF5-4 -50 RF3-2 RF4-5 -60 0 1 2 3 FREQUENCY (GHz) 14 - 2 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 Online at www.hittite.com v01.0101 HMC172QS24 GaAs MMIC SP6T SWITCH DC - 2.5 GHz Truth Table Control Input A High Low High Low High Low High Low B High High Low Low High High Low Low C High High High High Low Low Low Low Signal Path State RFCOM to: RF1 Bias Voltage & Current Vee Range = -5.0 Vdc 10% Vee (Vdc) -5.0 RF2 RF3 RF4 RF5 RF6 ALL OFF ALL OFF Iee (Typ.) (mA) 5.0 Iee (Max.) (mA) 8.5 Control Voltages State Low High Bias Condition 0 to -3 VDC @ 250uA Typ. Vee +0.8 VDC @ 100uA Max. 14 SWITCHES - SMT 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 Online at www.hittite.com 14 - 3 v01.0101 HMC172QS24 GaAs MMIC SP6T SWITCH DC - 2.5 GHz Absolute Maximum Ratings Bias Voltage Range (Port Vee) Control Voltage Range (A & B) Storage Temperature Operating Temperature Maximum Input Power -7.0 Vdc Vee -0.5V to +1.0 Vdc -65 to +150 C -40 to +85 C +26 dBm (<500MHz) +29 dBm (>500MHz) Outline Drawing 14 SWITCHES - SMT NOTES: 1. PACKAGE BODY MATERIAL: LOW STRESS INJECTION MOLDED PLASTIC SILICA AND SILICON IMPREGNATED. 2. LEADFRAME MATERIAL: COPPER ALLOY 3. LEADFRAME PLATING: Sn/Pb SOLDER 4. DIMENSIONS ARE IN INCHES [MILLIMETERS]. 5. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE. 6. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE. 7. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND. 14 - 4 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 Online at www.hittite.com v01.0101 HMC172QS24 GaAs MMIC SP6T SWITCH DC - 2.5 GHz TTL Interface Circuit Note: Control inputs A, B, and C can be driven directly with TTL logic with -5 Volts applied to the HCT logic gate Vee and to pin 11 (Vee) of the RF switch. 14 SWITCHES - SMT 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 Online at www.hittite.com 14 - 5 v01.0101 HMC172QS24 GaAs MMIC SP6T SWITCH DC - 2.5 GHz Evaluation Circuit Board 14 SWITCHES - SMT List of Material Item J1 - J7 J8 - J12 C1 - C7 C8 - C11 U1 PCB* Description PC Mount SMA RF Connector DC Pin 100 pF Capacitor, 0402 Pkg. 10,000 pF capacitor, 0603 Pkg. HMC172QS24 SP6T Switch 103700 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 - 6 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 Online at www.hittite.com |
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