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| HMC446 / 446E v03.0805 GaAs MMIC 10W T/R SWITCH, 824 - 894 MHz* Typical Applications The HMC446 / HMC446E is ideal for: * ISM/Cellular Portables/Handsets * Automotive Telematic Applications * Mobile Radio Features Low Insertion Loss: 0.6 dB High IIP3: +65 dBm High Input P0.1 dB: +40 dBm Tx Positive Control: 0/+5V to 0/+8V Ultra Small Package: SOT26 8 SWITCHES - SMT Functional Diagram General Description The HMC446 & HMC446E are low-cost SPDT switches in 6-lead SOT26 packages for use in transmitreceive applications which require very low distortion at high signal power levels, up to 10 watts. The device can control signals from 824 - 894 MHz* and is especially suited for cellular booster and automotive telematic applications. The design provides exceptional P0.1 dB of +40 dBm and +65 dBm IIP3 on the Transmit (Tx) port. The Tx port is a reflective open when "Off" while the Rx port is a reflective short when "Off". On-chip circuitry allows single positive supply operation at very low DC current with a single control input (Vctl). Electrical Specifications, TA = +25 C, Vctl = 0/+8 Vdc, 50 Ohm System Parameter Insertion Loss Isolation Return Loss Input Power for 0.1 dB Compression Input Third Order Intercept (Two-tone input power = +19 dBm each tone) Switching Characteristics tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) * External component values can be adjusted to enable HMC446 to operate in other frequency bands. Contact HMC with your specific requirement. Tx - RFC RFC - Rx Tx - RFC RFC - Rx Tx - RFC RFC - Rx Tx - RFC RFC - Rx Tx - RFC RFC - Rx Frequency* 824 - 849 MHz 824 - 894 MHz 824 - 849 MHz 824 - 894 MHz 824 - 849 MHz 824 - 894 MHz 824 - 849 MHz 824 - 894 MHz 824 - 849 MHz 824 - 894 MHz 824 - 894 MHz 4 90 ns ns 38 28 18 29 Min. Typ. 0.6 0.6 22 35 13 17 40 30 65 52 Max. 0.9 1.0 Units dB dB dB dB dB dB dBm dBm dBm dBm 8 - 256 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 HMC446 / 446E v03.0805 GaAs MMIC 10W T/R SWITCH, 824 - 894 MHz* Insertion Loss vs. Temperature, Tx 0 -0.5 INSERTION LOSS (dB) -1 -1.5 -2 -2.5 -3 0.75 Tx, +25C Tx, +85C Tx, -40C Insertion Loss vs. Temperature, Rx 0 -0.5 INSERTION LOSS (dB) -1 -1.5 -2 -2.5 -3 0.75 Rx, +25C Rx, +85C Rx, -40C 8 0.9 0.8 0.85 0.9 0.8 0.85 FREQUENCY (GHz) FREQUENCY (GHz) Isolation 0 -5 -10 ISOLATION (dB) -15 -20 -25 -30 -35 -40 0.75 RFC to Tx RFC to Rx Return Loss 0 Tx, Input Tx, Output Rx, Input Rx, Output -5 RETURN LOSS (dB) -10 -15 -20 0.8 0.85 0.9 -25 0.75 0.8 0.85 0.9 FREQUENCY (GHz) FREQUENCY (GHz) Input Power Compression @ 849 MHz, Vdd = 8.0V 0 Input Power Compression @ 849 MHz, Vdd = 5.0V 0 INSERTION LOSS (dB) -0.5 INSERTION LOSS (dB) -0.5 -1 -1 -1.5 Tx Rx -1.5 Tx Rx -2 10 15 20 25 30 35 40 INPUT POWER (dBm) -2 10 15 20 25 30 35 40 INPUT POWER (dBm) 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 - 257 SWITCHES - SMT HMC446 / 446E v03.0805 GaAs MMIC 10W T/R SWITCH, 824 - 894 MHz* Absolute Maximum Ratings Max. Input Power (Vdd = +8V, VCTL = 0/+8V) Supply Voltage (Vdd) Control Voltage Range (Vctl) Storage Temperature Tx Port Rx Port 41 dBm 33 dBm +10 Vdc -0.2 to Vdd -65 to +150 C -40 to +85 C Truth Table Control Input Vctl (Vdc) 0.0 Vdd Signal Path State Tx to RFC OFF ON RFC to Rx ON OFF 8 SWITCHES - SMT Operating Temperature Vdd = +5.0V to +8.0V 0.2V Control Input Voltage Tolerances are 0.2 Vdc. Do not operate continuously at power levels > 1 dB compression and do not "hot switch" power levels greater than +36 dBm (Vctl= +8V) into the Tx port and no greater than +27 dBm into the Rx port. DC blocking capacitors are required at ports RFC, Tx and Rx. Inductors are required from Tx to RFC and Rx to RFC. See Application Circuit Herein. 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 MUST BE SOLDERED TO PCB RF GROUND Package Information Part Number HMC446 HMC446E Package Body Material Low Stress Injection Molded Plastic RoHS-compliant Low Stress Injection Molded Plastic Lead Finish Sn/Pb Solder 100% matte Sn MSL Rating MSL1 MSL1 [1] Package Marking [3] H446 XXXX 446E XXXX [2] [1] Max peak reflow temperature of 235 C [2] Max peak reflow temperature of 260 C [3] 4-Digit lot number XXXX 8 - 258 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 HMC446 / 446E v03.0805 GaAs MMIC 10W T/R SWITCH, 824 - 894 MHz* Pin Descriptions Pin Number 1 Function Tx Description This pin is DC coupled and matched to 50 Ohms. Interface Schematic 2 GND This pin must be connected to PCB RF ground. 3 Vctl See Truth Table. 8 SWITCHES - SMT 8 - 259 4 Rx This pin is DC coupled and matched to 50 Ohms. 5 Vdd Supply Voltage 6 RFC This pin is DC coupled and matched to 50 Ohms. 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 HMC446 / 446E v03.0805 GaAs MMIC 10W T/R SWITCH, 824 - 894 MHz* Required Application Circuit 8 SWITCHES - SMT Users must implement this application circuit with the HMC446 T/R switch for proper operation. Note 1: LRx = COILCRAFT 0402CS - 8N2XJB, 8.2 nH, 5% Tolerance Inductor Note 2: LTx = COILCRAFT 0603CS - 22NXJB, 22 nH, 5% Tolerance Inductor Note 3: C1, C2, C3 = 330 pF Capacitor Note 4: External component values can be adjusted to enable HMC446 to operate in other frequency bands. Contact HMC with your specific requirement. Note 5: Set logic gate & switch Vdd= +8V and use HC series logic to provide a buffered logic interface. 8 - 260 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 HMC446 / 446E v03.0805 GaAs MMIC 10W T/R SWITCH, 824 - 894 MHz* Evaluation PCB 8 SWITCHES - SMT List of Materials for Evaluation PCB 103837 [1] Item J1 - J3 J4 - J6 C1 - C3 LTx LRx U1 PCB [2] Description PCB Mount SMA RF Connector DC Pin 330 pF Capacitor, 0603 Pkg. 22 nH Inductor, 0603 Pkg. 8.2 nH Inductor, 0402 Pkg. HMC446 / HMC446E T/R Switch 103835 Evaluation PCB [1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Rogers 4350 The circuit board used in the final application should use RF circuit design techniques. Signal lines should have 50 ohm impedance while the package ground leads should be connected directly to the ground plane similar to that shown above. A sufficient number of VIA holes should be used to connect the top and bottom ground planes. The evaluation circuit board as shown is available from Hittite 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 8 - 261 |
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