HMC284MS8G / 284MS8GE v06.0607 SPDT NON-REFLECTIVE SWITCH, DC - 3.5 GHz Typical Applications Features The HMC284MS8G / HMC284MS8GE is ideal for: High Isolation: >45 dB • Cellular/PCS Base Stations Positive control: 0/+5V • 2.4 GHz ISM Non-Reflective Design • 3.5 GHz Wireless Local Loop Ultra Small Pakcage: MSOP8G Indluded in the HMC-DK005 Designers’ Kit Functional Diagram General Description The HMC284MS8G & HMC284MS8GE are low-cost SPDT switches in 8-lead grounded base MSOP packages. The design has been optimized to provide high isolation with minimal insertion loss for medium and low power applications. On-chip circuitry allows positive voltage control operation at very low DC currents with control inputs compatible with CMOS and most TTL logic families. In the “OFF” state, RF1 and RF2 are non-reflective. See reflective high isolation SPDT version, HMC194MS8. SWITCHES - SMT 9 Electrical Specifications, TA = +25° C, Vctl = 0/+5 Vdc, 50 Ohm System Parameter Frequency Insertion Loss RF1 & RF2 RF1 / RF2 RF1 / RF2 RF1 & RF2 Typ. Max. Units 0.5 0.6 0.7 0.8 0.9 1.1 dB dB dB DC - 2.0 GHz DC - 2.5 GHz DC - 3.0 GHz DC - 3.5 GHz 41 38/41 34/36 30 45 41/45 37/39 33 dB dB dB dB Return Loss (On State) DC - 2.0 GHz DC - 2.5 GHz DC - 3.5 GHz 21 13 10 25 17 12 dB dB dB Return Loss (Off State) 0.5 - 3.5 GHz 10 13 dB Input Power for 1 dB Compression 0.5 - 1.0 GHz 0.5 - 3.5 GHz 20 18 25 24 dBm dBm Input Third Order Intercept (Two-Tone Input Powew = 0 dBm Each Tone) 0.5 - 3.5 GHz 43 48 dBm Switching Speed DC - 3.5 GHz 40 60 ns ns Isolation tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) 9 - 160 Min. DC - 2.0 GHz DC - 3.0 GHz DC - 3.5 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 HMC284MS8G / 284MS8GE v06.0607 SPDT NON-REFLECTIVE SWITCH, DC - 3.5 GHz Isolation 0 -0.5 -10 ISOLATION (dB) 0 -1 -1.5 +25 C -40 C +85 C -2 -2.5 RF 1 RF 2 -20 -30 -40 -50 -3 -60 0.5 1 1.5 2 2.5 3 3.5 4 0 0.5 1 1.5 FREQUENCY (GHz) 2 2.5 3 3.5 4 9 FREQUENCY (GHz) SWITCHES - SMT 0 Return Loss 0 -5 RETURN LOSS (dB) INSERTION LOSS (dB) Insertion Loss S11 (ON) S22 (ON) S22 (OFF) -10 -15 -20 -25 -30 -35 -40 0 0.5 1 1.5 2 2.5 3 3.5 4 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 9 - 161 HMC284MS8G / 284MS8GE v06.0607 SPDT NON-REFLECTIVE SWITCH, DC - 3.5 GHz Compression vs Frequency Carrier at 900 MHz Carrier at 1900 MHz CTL Input Input Power for 0.1 dB Compression Input Power for 1.0 dB Compression Input Power for 0.1 dB Compression Input Power for 1.0 dB Compression (Vdc) (dBm) (dBm) (dBm) (dBm) +5 23 25 22 24 Caution: Do not operate continuously at RF power input greater than 1 dB compression. (Vctl = 0/+5 Vdc). SWITCHES - SMT 9 Distortion vs Frequency Third Order Intercept (dBm) 0 dBm Each Tone Control Input (Vdc) 900 MHz 1900 MHz +5 48 50 Truth Table *Control Input Tolerances are +/-0.2 Vdc Control Input* Control Current A (Vdc) B (Vdc) Ia (uA) 0 +5 -25 +5 0 25 Ib (uA) Signal Path State RFC to RF1 RFC to RF2 25 ON OFF -25 OFF ON DC blocks are required at ports RFC, RF1, RF2. 9 - 162 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 HMC284MS8G / 284MS8GE v06.0607 SPDT NON-REFLECTIVE SWITCH, DC - 3.5 GHz Absolute Maximum Ratings RF Input Power (Vctl = 0/+5V) +26 dBm Control Voltage Range -0.2 to +7.5 Vdc Hot Switch Power Level (Vctl = 0/+5V) +18 dBm Channel Temperature 150 °C Thermal Resistance (Insertion Loss Path) 140 °C/W Thermal Resistance (Terminated Path) 190 °C/W -65 to +150 °C Operating Temperature -40 to +85 °C ESD Sensitivity (HBM) Class 1A 9 SWITCHES - SMT Storage Temperature ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Outline Drawing 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 Package Body Material Lead Finish MSL Rating HMC284MS8G Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 HMC284MS8GE RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 Package Marking [3] [1] H284 XXXX [2] H284 XXXX [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 - 163 HMC284MS8G / 284MS8GE v06.0607 SPDT NON-REFLECTIVE SWITCH, DC - 3.5 GHz Typical Application Circuit SWITCHES - SMT 9 Notes: 1. Set A/B control to 0/+5V, Vdd = +5V and use HCT series logic to provide a TTL driver interface. 2. Control inputs A/B can be driven directly with CMOS logic (HC) with Vdd = +5 Volts applied to the CMOS logic gates. 3. DC blocking capacitors are required for each RF port as shown. Capacitor value determines lowest frequency of operation. 4. Highest RF signal power capability is acheived wiht Vdd = +7V and A/B set to 0/+7V. 5. Back side paddle must be connected to RF ground. 6. A grounded coplanar waveguide PCB layout technique is recommended to achieve high isolation. The component side ground plane between RFC/grounded paddle and RF1/RF2 should be continuous, see below. There should be a continuous ground plane under component side layout. 9 - 164 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 HMC284MS8G / 284MS8GE v06.0607 SPDT NON-REFLECTIVE SWITCH, DC - 3.5 GHz Evaluation PCB SWITCHES - SMT 9 List of Materials for Evaluation PCB 105143 Item Description J1 - J3 PCB Mount SMA RF Connector J4 - J6 DC Pin C1 - C3 100 pF capacitor, 0402 Pkg. R1, R2 100 Ohm resistor, 0402 Pkg. U1 HMC284MS8 / HMC284MS8GE SPDT Switch PCB [2] 107821 Evaluation PCB [1] 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. [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 - 165