HMC446 / 446E v03.0805 GaAs MMIC 10W T/R SWITCH, 824 - 894 MHz* Typical Applications Features The HMC446 / HMC446E is ideal for: Low Insertion Loss: 0.6 dB • ISM/Cellular Portables/Handsets High IIP3: +65 dBm • Automotive Telematic Applications High Input P0.1 dB: +40 dBm Tx • Mobile Radio Positive Control: 0/+5V to 0/+8V Ultra Small Package: SOT26 SWITCHES - SMT 8 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 Frequency* Insertion Loss Tx - RFC RFC - Rx 824 - 849 MHz 824 - 894 MHz Isolation Tx - RFC RFC - Rx 824 - 849 MHz 824 - 894 MHz Return Loss Tx - RFC RFC - Rx 824 - 849 MHz 824 - 894 MHz Input Power for 0.1 dB Compression Tx - RFC RFC - Rx 824 - 849 MHz 824 - 894 MHz Input Third Order Intercept (Two-tone input power = +19 dBm each tone) Tx - RFC RFC - Rx 824 - 849 MHz 824 - 894 MHz Switching Characteristics Min. 18 29 38 28 Typ. Max. Units 0.6 0.6 0.9 1.0 dB dB 22 35 dB dB 13 17 dB dB 40 30 dBm dBm 65 52 dBm dBm 4 90 ns ns 824 - 894 MHz 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. 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, Rx 0 0 -0.5 -0.5 INSERTION LOSS (dB) -1 -1.5 Tx, +25C Tx, +85C Tx, -40C -2 -2.5 -1 -1.5 -2.5 -3 0.75 0.8 0.85 -3 0.75 0.9 0.8 FREQUENCY (GHz) 0.85 0.9 FREQUENCY (GHz) Return Loss Isolation 0 0 -5 RFC to Tx RFC to Rx Tx, Input Tx, Output Rx, Input Rx, Output -5 RETURN LOSS (dB) -10 ISOLATION (dB) 8 Rx, +25C Rx, +85C Rx, -40C -2 -15 -20 -25 -30 -10 SWITCHES - SMT INSERTION LOSS (dB) Insertion Loss vs. Temperature, Tx -15 -20 -35 -40 0.75 0.8 0.85 -25 0.75 0.9 0.8 FREQUENCY (GHz) Input Power Compression @ 849 MHz, Vdd = 8.0V 0.9 Input Power Compression @ 849 MHz, Vdd = 5.0V 0 INSERTION LOSS (dB) 0 INSERTION LOSS (dB) 0.85 FREQUENCY (GHz) -0.5 -1 Tx Rx -1.5 -2 -0.5 -1 Tx Rx -1.5 -2 10 15 20 25 30 INPUT POWER (dBm) 35 40 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 HMC446 / 446E v03.0805 Absolute Maximum Ratings Max. Input Power (Vdd = +8V, VCTL = 0/+8V) Tx Port Rx Port Supply Voltage (Vdd) +10 Vdc Control Voltage Range (Vctl) SWITCHES - SMT 8 41 dBm 33 dBm GaAs MMIC 10W T/R SWITCH, 824 - 894 MHz* Truth Table Control Input Vctl (Vdc) Tx to RFC 0.0 OFF ON Vdd ON OFF -0.2 to Vdd Storage Temperature -65 to +150 °C Operating Temperature -40 to +85 °C 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. Signal Path State RFC to Rx Vdd = +5.0V to +8.0V ± 0.2V Control Input Voltage Tolerances are ± 0.2 Vdc. 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 Package Body Material Lead Finish MSL Rating HMC446 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 HMC446E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 Package Marking [3] [1] H446 XXXX [2] 446E XXXX [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 Function Description 1 Tx This pin is DC coupled and matched to 50 Ohms. 2 GND This pin must be connected to PCB RF ground. 3 Vctl See Truth Table. 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. 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 SWITCHES - SMT Pin Number 8 - 259 HMC446 / 446E v03.0805 GaAs MMIC 10W T/R SWITCH, 824 - 894 MHz* Required Application Circuit SWITCHES - SMT 8 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 SWITCHES - SMT 8 List of Materials for Evaluation PCB 103837 [1] Item Description J1 - J3 PCB Mount SMA RF Connector J4 - J6 DC Pin C1 - C3 330 pF Capacitor, 0603 Pkg. LTx 22 nH Inductor, 0603 Pkg. LRx 8.2 nH Inductor, 0402 Pkg. U1 HMC446 / HMC446E T/R Switch PCB [2] 103835 Evaluation PCB [1] Reference this number when ordering complete evaluation PCB 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. [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 8 - 261