HMC194MS8 / 194MS8E Typical Applications The HMC194MS8 /HMC194MS8E is ideal for: Cellular/PCS Base Stations Portable Wireless MMDS & WirelessLAN Features Ultra Small Package: MSOP8 High Isolation: 5 Positive Control: /+3V to /+7V Functional Diagram General Description The HMC194MS8 & HMC194MS8E are low-cost SPDT switches in 8-lead MSOP packages for use in applications which require high isolation between two RF paths. The devices can control signals from DC to 3 GHz and have been optimized to provide extremely high isolation with minimal insertion loss in 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. RF1 and RF2 are refl ective opens when OFF. Electrical Specifications, T A = +25 C, Vctl = /+5 Vdc, 5 Ohm System Insertion Loss Isolation Return Loss Input Power for 1 Compression /+5V Control Input Third Order Intercept (Two-tone Input Power = +7 m Each Tone) Switching Characteristics Parameter Frequency Min. Typ. Max. Units RF1 / RF2 RF1 / RF2 trise, tfall (/9% RF) ton, toff (5% CTL to /9% RF) DC - 2. GHz DC - 2.5 GHz DC - 3. GHz DC - 1. GHz DC - 2. GHz DC - 2.5 GHz DC - 3. GHz DC - 2. GHz DC - 2.5 GHz 48 / 5 4 / 42 31.7.8.8 52 / 54 44 / 46 35 28 22.9 1. 1.1.5-3. GHz 28 m /+5V Control.5-3. GHz 49 53 m DC - 3. GHz ns ns - 26 One Technology Way, P.O. Box 96, Norwood, MA 262-96
Insertion Loss -.5 Isolation - INSERTION LOSS () -1-1.5-2 ISOLATION () -2-3 -4-5 RF1 RF2-2.5-6 -3 1 2 3 FREQUENCY (GHz) Return Loss RETURN LOSS () - -2-3 S11 S22-4 1 2 3 FREQUENCY (GHz) Input.1 and 1. Compression vs. Control Voltage POWER FOR.1 & 1 COMPRESSION -7 1 2 3 32 28 2 16 12 8 4 FREQUENCY (GHz) P.1 at 9 MHz P1 at 9 MHz P.1 at 19 MHz P1 at 19 MHz P.1 at 3 MHz P1 at 3 MHz 3 5 7 Control Input (V) Input Third Order Intercept Point vs. Control Voltage THIRD ORDER INTERCEPT (m) 6 5 4 3 9 MHz 19 MHz 2 3 MHz 3 5 7 Control Input (V) Truth Table *Control Input Voltage Tolerances are ±.2 Vdc. Control Input* Control Current Signal Path State A (Vdc) B (Vdc) Ia (ua) Ib (ua) RF to RF1 RF to RF2 +3 -.5 +.5 ON OFF +3 +.5 -.5 OFF ON +5-2 +2 ON OFF +5 +2-2 OFF ON +7-15 +15 ON OFF +7 +15-15 OFF ON One Technology Way, P.O. Box 96, Norwood, MA 262-96 - 27
Absolute Maximum Ratings RF Input Power (Vctl= V/+5V) Control Voltage Range (A & B) Outline Drawing +27 m -.2 to +7.5 Vdc Hot Switch Power Level (Vctl= V/+5V) + m Channel Temperature 15 C Continuous Pdiss (T= 85 C) (derate 5.5 mw/ C above 85 C) 36 mw Thermal Resistance 18 C/W Storage Temperature -65 to +15 C Operating Temperature -4 to +85 C ESD Sensitivity (HBM) Class 1B Note: DC blocking capacitors are required at ports RFC, RF1 and RF2. Their value will determine the lowest transmission frequency. ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS NOTES: 1. LEADFRAME MATERIAL: COPPER ALLOY 2. DIMENSIONS ARE IN INCHES [MILLIMETERS]. 3. DIMENSION DOES NOT INCLUDE MOLDFLASH OF.15mm PER SIDE. 4. DIMENSION DOES NOT INCLUDE MOLDFLASH OF.25mm PER SIDE. 5. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND. 6. CLASSIFIED AS MOISTURE SENSITIVITY LEVEL (MSL) 1. Package Information Part Number Package Body Material Lead Finish MSL Rating Package Marking [3] [1] H194 HMC194MS8 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 XXXX [2] H194 HMC194MS8E RoHS-compliant Low Stress Injection Molded Plastic % matte Sn MSL1 XXXX [1] Max peak refl ow temperature of 235 C [2] Max peak refl ow temperature of 26 C [3] 4-Digit lot number XXXX - 28 One Technology Way, P.O. Box 96, Norwood, MA 262-96
Typical Application Circuit Notes: 1. Set logic gate and switch Vdd = +3V to +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 of 3 to 7 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 achieved with Control set to /+7V. One Technology Way, P.O. Box 96, Norwood, MA 262-96 - 29
Evaluation Circuit Board List of Materials for Evaluation PCB 5143 [1] Item J1 - J3 J4 - J6 C1 - C3 Description PC Mount SMA RF Connector DC Pin pf capacitor, 42 Pkg. R1, R2 Ω resistor, 42 Pkg. U1 PCB [2] HMC194MS8 / HMC194MS8E SPDT Switch 7821 Evaluation PCB [1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Rogers 435 The circuit board used in the fi nal application should be generated with proper RF circuit design techniques. Signal lines at the RF port should have 5 ohm impedance and the package ground leads 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. - 3 One Technology Way, P.O. Box 96, Norwood, MA 262-96
Notes One Technology Way, P.O. Box 96, Norwood, MA 262-96 - 31