MITSUBISHI RF MOSFET MODULE ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS RA55H4452M RoHS Compliance , 440-520MHz 55W 12.5V, 3 Stage Amp. For MOBILE RADIO DESCRIPTION The RA55H4452M is a 55-watt RF MOSFET Amplifier Module for 12.5-volt mobile radios that operate in the 440- to 520-MHz range. The battery can be connected directly to the drain of the enhancement-mode MOSFET transistors. Without the gate voltage (VGG=0V), only a small leakage current flows into the drain and the RF input signal attenuates up to 60 dB. The output power and drain current increase as the gate voltage increases. With a gate voltage around 4V (minimum), output power and drain current increases substantially. The nominal output power becomes available at 4.5V (typical) and 5V (maximum). At VGG=5V, the typical gate current is 1 mA. This module is designed for non-linear FM modulation, but may also be used for linear modulation by setting the drain quiescent current with the gate voltage and controlling the output power with the input power. FEATURES • Enhancement-Mode MOSFET Transistors (IDD≅0 @ VDD=12.5V, VGG=0V) BLOCK DIAGRAM 2 3 1 4 5 1 RF Input (Pin) 2 Gate Voltage (VGG), Power Control 3 Drain Voltage (VDD), Battery 4 RF Output (Pout) 5 RF Ground (Case) • Pout>55W, ηT>43% @ f=440-490MHz, PACKAGE CODE: H2S Pout>45W, ηT>35% @ f=491-520MHz, VDD=12.5V, VGG=5V, Pin=50mW • Broadband Frequency Range: 440-520MHz • Low-Power Control Current IGG=1mA (typ) at VGG=5V • Module Size: 66 x 21 x 9.88 mm • Linear operation is possible by setting the quiescent drain current with the gate voltage and controlling the output power with the input power RoHS COMPLIANCE • RA55H4452M-101 is a RoHS compliant products. • RoHS compliance is indicate by the letter “G” after the Lot Marking. • This product include the lead in the Glass of electronic parts and the lead in electronic Ceramic parts. However, it is applicable to the following exceptions of RoHS Directions. 1.Lead in the Glass of a cathode-ray tube, electronic parts, and fluorescent tubes. 2.Lead in electronic Ceramic parts. ORDERING INFORMATION: ORDER NUMBER SUPPLY FORM RA55H4452M-101 Antistatic tray, 10 modules/tray RA55H4452M MITSUBISHI ELECTRIC 1/8 14 March 2008 MITSUBISHI RF POWER MODULE ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS RA55H4452M RoHS COMPLIANCE MAXIMUM RATINGS (Tcase=+25°C, unless otherwise specified) SYMBOL PARAMETER CONDITIONS VDD Drain Voltage VGG<5V VGG Gate Voltage VDD<12.5V, Pin=0mW Pin Input Power Pout Output Power Tcase(OP) Tstg RATING UNIT 17 V 6 V 100 MW 65 W Operation Case Temperature Range -30 to +110 °C Storage Temperature Range -40 to +110 °C f=440-520MHz, ZG=ZL=50Ω Note.1.The above parameters are independently guaranteed. Note.2.In order to keep high reliability of the equipment, it is better to keep the module temperature of the module is recommended to keep lower than 90°C under all conditions, and to keep lower than 60°C under standard conditions. ELECTRICAL CHARACTERISTICS (Tcase=+25°C, ZG=ZL=50Ω, unless otherwise specified) SYMBOL PARAMETER f CONDITIONS Frequency Range Pout Output Power ηT Total Efficiency 2fo 2 ρin Input VSWR IGG Gate Current — Stability — Load VSWR Tolerance TYP 440 MAX UNIT 520 MHz 55 @440-490MHz 45 @491-520MHz 43 @440-490MHz VDD=12.5V,VGG=5V, Pin=50mW nd MIN 35 @491-520MHz Harmonic VDD=10.0-15.2V, Pin=25-70mW, Pout<65W (VGG control), Load VSWR=3:1 VDD=15.2V, Pin=50mW, Load VSWR=20:1 Pout=55W (VGG control)@440-490MHz Pout=45W (VGG control)@491-520MHz W % -50 dBc 3:1 — 1 mA No parasitic oscillation — No degradation or destroy — Note. All parameters, conditions, ratings, and limits are subject to change without notice. RA55H4452M MITSUBISHI ELECTRIC 2/8 14 March 2008 MITSUBISHI RF POWER MODULE ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS RA55H4452M RoHS COMPLIANCE TYPICAL PERFORMANCE (Tcase=+25°C, ZG=ZL=50Ω, unless otherwise specified) rd OUTPUT POWER, TOTAL EFFICIENCY, and INPUT VSWR versus FREQUENCY 2nd, 3 HARMONICS versus FREQUENCY -30 80 60 ηT 50 50 40 40 30 V DD=12.5V V GG=5V Pin=50m W 20 10 ρ in 0 0 430 440 450 460 470 480 490 500 510 520 530 FREQUENCY f(MHz) -60 2nd -80 430 440 450 460 470 480 490 500 510 520 530 FREQUENCY f(MHz) OUTPUT POWER, POWER GAIN and DRAIN CURRENT versus INPUT POWER OUTPUT POWER, POWER GAIN and DRAIN CURRENT versus INPUT POWER 24 16 30 12 IDD 20 8 f=440MHz, V DD=12.5V, V GG=5V 10 4 0 out (dBm) 40 -5 0 5 10 INPUT POWER Pin(dBm) 15 8 IDD f=490MHz, V DD=12.5V, V GG=5V 4 0 out (dBm) 12 0 -5 10 15 6 8 10 12 DRAIN VOLTAGE V DD (V) 15 20 24 20 Gp 40 16 30 12 20 8 IDD f=520MHz, V DD=12.5V, V GG=5V 10 4 0 -10 -5 0 5 10 15 20 Pout 14 16 OUTPUT POWER P 24 22 20 18 16 14 12 10 8 6 4 2 0 out (W) OUTPUT POWER and DRAIN CURRENT versus DRAIN VOLTAGE DRAIN CURRENT I DD (A) out (W) OUTPUT POWER P RA55H4452M 4 10 INPUT POWER Pin(dBm) IDD 2 5 0 20 OUTPUT POWER and DRAIN CURRENT versus DRAIN VOLTAGE f=440MHz, V GG=5V, Pin=50m W 0 Pout INPUT POWER Pin(dBm) 120 110 100 90 80 70 60 50 40 30 20 10 0 4 0 50 POWER GAIN Gp(dB) 30 OUTPUT POWER P 16 5 f=470MHz, V DD=12.5V, V GG=5V 60 DRAIN CURRENT I DD (A) POWER GAIN Gp(dB) out (dBm) 20 40 0 8 IDD OUTPUT POWER, POWER GAIN and DRAIN CURRENT versus INPUT POWER Gp -5 12 -10 24 -10 30 INPUT POWER Pin(dBm) Pout 10 16 0 20 60 20 20 40 10 OUTPUT POWER, POWER GAIN and DRAIN CURRENT versus INPUT POWER 50 Pout Gp 20 0 -10 24 50 POWER GAIN Gp(dB) 20 Gp 60 OUTPUT POWER P Pout DRAIN CURRENT I DD (A) POWER GAIN Gp(dB) OUTPUT POWER P out (dBm) 60 50 3rd -70 DRAIN CURRENT I DD (A) 20 -50 120 110 100 90 80 70 60 50 40 30 20 10 0 f=470MHz, V GG=5V, Pin=50m W 24 22 20 18 16 14 12 10 8 6 4 2 0 Pout IDD 2 4 MITSUBISHI ELECTRIC 3/8 6 8 10 12 DRAIN VOLTAGE VDD (V) 14 DRAIN CURRENT I DD (A) 30 -40 HARMONICS (dBc) 60 10 OUTPUT POWER P V DD=12.5V V GG=5V Pin=50m W 70 TOTAL EFFICIENCY η T(%) 70 INPUT VSWR ρ in (-) OUTPUT POWER P out (W) Pout DRAIN CURRENT IDD(A) 80 16 14 March 2008 MITSUBISHI RF POWER MODULE ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS RA55H4452M RoHS COMPLIANCE TYPICAL PERFORMANCE (Tcase=+25°C, ZG=ZL=50Ω, unless otherwise specified) Pout IDD 6 8 10 12 DRAIN VOLTAGE VDD (V) 14 16 80 14 60 12 IDD 50 10 40 8 30 6 20 4 10 2 0 0 2.5 3 3.5 4 4.5 GATE VOLTAGE VGG(V) 5 out (W) Pout 90 16 OUTPUT POWER P 70 18 DRAIN CURRENT I DD (A) out (W) OUTPUT POWER P f=440MHz, V DD=12.5V, Pin=50m W 8 6 20 4 10 2 80 10 6 20 4 10 2 0 0 RA55H4452M 5 5.5 OUTPUT POWER P 12 out (W) 90 30 3.5 4 4.5 GATE VOLTAGE VGG(V) 10 30 16 8 3 12 IDD 40 18 40 2.5 16 14 50 0 2.5 14 IDD 50 18 Pout 3 3.5 4 4.5 GATE VOLTAGE VGG(V) 5 5.5 OUTPUT POWER and DRAIN CURRENT versus GATE VOLTAGE Pout 60 16 0 DRAIN CURRENT I DD (A) out (W) OUTPUT POWER P 70 14 60 5.5 90 f=490MHz, V DD=12.5V, Pin=50m W 6 8 10 12 DRAIN VOLTAGE VDD (V) f=470MHz, V DD=12.5V, Pin=50m W 70 OUTPUT POWER and DRAIN CURRENT versus GATE VOLTAGE 80 4 OUTPUT POWER and DRAIN CURRENT versus GATE VOLTAGE 90 80 Pout IDD 2 OUTPUT POWER and DRAIN CURRENT versus GATE VOLTAGE 24 22 20 18 16 14 12 10 8 6 4 2 0 DRAIN CURRENT I DD (A) 4 f=520MHz, V GG=5V, Pin=50m W 18 f=520MHz, V DD=12.5V, Pin=50m W 70 60 16 Pout 14 12 IDD 50 10 40 8 30 6 20 4 10 2 0 DRAIN CURRENT I DD (A) 2 120 110 100 90 80 70 60 50 40 30 20 10 0 DRAIN CURRENT I DD (A) 24 22 20 18 16 14 12 10 8 6 4 2 0 out (W) f=490MHz, V GG=5V, Pin=50m W OUTPUT POWER P 120 110 100 90 80 70 60 50 40 30 20 10 0 OUTPUT POWER and DRAIN CURRENT versus DRAIN VOLTAGE DRAIN CURRENT I DD (A) OUTPUT POWER P out (W) OUTPUT POWER and DRAIN CURRENT versus DRAIN VOLTAGE 0 2.5 3 3.5 4 4.5 GATE VOLTAGE VGG(V) MITSUBISHI ELECTRIC 4/8 5 5.5 14 March 2008 MITSUBISHI RF POWER MODULE ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS RoHS COMPLIANCE RA55H4452M OUTLINE DRAWING (mm) 66.0 ±0.5 7.25 ±0.8 51.5 ±0.5 3 2.0 ±0.5 2 4 4.0 ±0.3 9.5 ±0.5 5 1 14.0 ±1 2-R2 ±0.5 17.0 ±0.5 60.0 ±0.5 21.0 ±0.5 3.0 ±0.3 Ø0.60 ±0.15 12.0 ±1 16.5 ±1 43.5 ±1 (50.4) (9.88) 2.3 ±0.3 7.5 ±0.5 0.09 ±0.02 3.1 +0.6/-0.4 55.5 ±1 1 RF Input (Pin) 2 Gate Voltage (VGG) 3 Drain Voltage (VDD) 4 RF Output (Pout) 5 RF Ground (Case) RA55H4452M MITSUBISHI ELECTRIC 5/8 14 March 2008 MITSUBISHI RF POWER MODULE ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS RoHS COMPLIANCE RA55H4452M TEST BLOCK DIAGRAM Power Meter DUT 1 Signal Generator Attenuator Preamplifier Attenuator Directional Coupler 3 2 Spectrum Analyzer 4 ZL=50Ω ZG=50Ω C1 5 Directional Coupler Attenuator Power Meter C2 + DC Power Supply VGG + DC Power Supply VDD C1, C2: 4700pF, 22uF in parallel 1 RF Input (Pin) 2 Gate Voltage (VGG) 3 Drain Voltage (VDD) 4 RF Output (Pout) 5 RF Ground (Case) EQUIVALENT CIRCUIT 3 2 1 4 5 RA55H4452M MITSUBISHI ELECTRIC 6/8 14 March 2008 MITSUBISHI RF POWER MODULE ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS RoHS COMPLIANCE RA55H4452M PRECAUTIONS, RECOMMENDATIONS, and APPLICATION INFORMATION: Construction: This module consists of an alumina substrate soldered onto a copper flange. For mechanical protection, a plastic cap is attached with silicone. The MOSFET transistor chips are die bonded onto metal, wire bonded to the substrate, and coated with resin. Lines on the substrate (eventually inductors), chip capacitors, and resistors form the bias and matching circuits. Wire leads soldered onto the alumina substrate provide the DC and RF connection. Following conditions must be avoided: a) Bending forces on the alumina substrate (for example, by driving screws or from fast thermal changes) b) Mechanical stress on the wire leads (for example, by first soldering then driving screws or by thermal expansion) c) Defluxing solvents reacting with the resin coating on the MOSFET chips (for example, Trichloroethylene) d) Frequent on/off switching that causes thermal expansion of the resin e) ESD, surge, overvoltage in combination with load VSWR, and oscillation ESD: This MOSFET module is sensitive to ESD voltages down to 1000V. Appropriate ESD precautions are required. Mounting: Heat sink flatness must be less than 50 µm (a heat sink that is not flat or particles between module and heat sink may cause the ceramic substrate in the module to crack by bending forces, either immediately when driving screws or later when thermal expansion forces are added). A thermal compound between module and heat sink is recommended for low thermal contact resistance and to reduce the bending stress on the ceramic substrate caused by the temperature difference to the heat sink. The module must first be screwed to the heat sink, then the leads can be soldered to the printed circuit board. M3 screws are recommended with a tightening torque of 0.4 to 0.6 Nm. Soldering and Defluxing: This module is designed for manual soldering. The leads must be soldered after the module is screwed onto the heat sink. The temperature of the lead (terminal) soldering should be lower than 350°C and shorter than 3 second. Ethyl Alcohol is recommend for removing flux. Trichloroethylene solvents must not be used (they may cause bubbles in the coating of the transistor chips which can lift off the bond wires). Thermal Design of the Heat Sink: At Pout=55W, VDD=12.5V and Pin=50mW each stage transistor operating conditions are: IDD @ ηT=35% VDD Pin Pout Rth(ch-case) Stage (°C/W) (A) (W) (W) (V) st 1 0.05 1.5 23.0 0.28 nd 12.5 2 1.5 13.0 2.4 3.30 rd 3 13.0 55.0 1.2 8.70 The channel temperatures of each stage transistor Tch = Tcase + (VDD x IDD - Pout + Pin) x Rth(ch-case) are: Tch1 = Tcase + (12.5V x 0.28 -1.5 + 0.05W) x 23.0°C/W = Tcase + 47.2 °C Tch2 = Tcase + (12.5V x 3.30A - 13.0W + 1.5W) x 2.4°C/W = Tcase + 71.4 °C Tch3 = Tcase + (12.5V x 8.70A - 55.0W + 13.0W) x 1.2°C/W = Tcase + 80.1 °C For long-term reliability, it is best to keep the module case temperature (Tcase) below 90°C. For an ambient temperature Tair=60°C and Pout=55W, the required thermal resistance Rth (case-air) = ( Tcase - Tair) / ( (Pout / ηT ) Pout + Pin ) of the heat sink, including the contact resistance, is: Rth(case-air) = (90°C - 60°C) / (55W/35% – 55W + 0.05W) = 0.29 °C/W When mounting the module with the thermal resistance of 0.29 °C/W, the channel temperature of each stage transistor is: Tch1 = Tair + 77.2 °C Tch2 = Tair + 101.4 °C Tch3 = Tair + 110.1 °C The 175°C maximum rating for the channel temperature ensures application under derated conditions. RA55H4452M MITSUBISHI ELECTRIC 7/8 14 March 2008 MITSUBISHI RF POWER MODULE ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS RoHS COMPLIANCE RA55H4452M Output Power Control: Depending on linearity, the following two methods are recommended to control the output power: a) Non-linear FM modulation: By the gate voltage (VGG). When the gate voltage is close to zero, the RF input signal is attenuated up to 60 dB and only a small leakage current flows from the battery into the drain. Around VGG=4V, the output power and drain current increases substantially. Around VGG=4.5V (typical) to VGG=5V (maximum), the nominal output power becomes available. b) Linear AM modulation: By RF input power Pin. The gate voltage is used to set the drain’s quiescent current for the required linearity. Oscillation: To test RF characteristics, this module is put on a fixture with two bias decoupling capacitors each on gate and drain, a 4.700 pF chip capacitor, located close to the module, and a 22 µF (or more) electrolytic capacitor. When an amplifier circuit around this module shows oscillation, the following may be checked: a) Do the bias decoupling capacitors have a low inductance pass to the case of the module? b) Is the load impedance ZL=50Ω? c) Is the source impedance ZG=50Ω? Frequent on/off switching: In base stations, frequent on/off switching can cause thermal expansion of the resin that coats the transistor chips and can result in reduced or no output power. The bond wires in the resin will break after long-term thermally induced mechanical stress. Quality: Mitsubishi Electric is not liable for failures resulting from base station operation time or operating conditions exceeding those of mobile radios. This module technology results from more than 20 years of experience, field proven in tens of millions of mobile radios. Currently, most returned modules show failures such as ESD, substrate crack, and transistor burnout, which are caused by improper handling or exceeding recommended operating conditions. Few degradation failures are found. Keep safety first in your circuit designs! Mitsubishi Electric Corporation puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur. Trouble with semiconductors may lead to personal injury, fire or property damage. Remember to give due consideration to safety when making your circuit designs, with appropriate measures such as (i) placement of substitutive, auxiliary circuits, (ii) use of non-flammable material, or (iii) prevention against any malfunction or mishap. RA55H4452M MITSUBISHI ELECTRIC 8/8 14 March 2008