Order this document by MRFA2604/D SEMICONDUCTOR TECHNICAL DATA The RF Line The MRFA2604 is a solid state class AB amplifier specifically designed for TV transposers and transmitters. This amplifier incorporates microstrip technology and reliable Motorola push–pull transistors. The MRFA2604 includes a thermal compensation (differential gain is constant versus average picture level (APL)) which can be partially disconnected. • Specified 28 Volts, 470–860 MHz Characteristics Output Power = 175 Watts (CW)/230 Watts (Video) Minimum Gain = 8.0 dB (@ Nominal Power) • 50 Ω Input and Output Impedance • Class AB Operation • Thermally Compensated 230 W PEAK SYNC. 470 – 860 MHz CLASS AB RF POWER AMPLIFIER CASE 439–01, STYLE 1 MAXIMUM RATINGS Symbol Value Unit Supply Voltage Rating VCC 32 Vdc Current Imax 15 Adc Storage Temperature Range Tstg – 40 to +100 °C Operating Temperature (1) Top – 20 to + 70 °C NOMINAL OPERATION CONDITION Supply Voltage/Quiescent Current (2) VCC = 28 V IQ = 0.9 A ELECTRICAL CHARACTERISTICS IN CW (TC = 25°C, VCC = 28 V, IQ = 0.5 A, without thermal correction) Characteristic Symbol Min Typ Max Unit Instantaneous Bandwidth BW 470 — 860 MHz Power Gain (Pout = 175 W) Gp 8.0 9.0 — dB Gain Ripple (Pout = 175 W) Grple — ± 0.5 ± 1.0 dB Output Power @ 1.0 dB Compression Pout 175 (3) 190 — W η 45 (3) 50 — % IRL — – 20 –15 dB Efficiency (Pout = 175 W) Input Return Loss ELECTRICAL CHARACTERISTICS IN VIDEO (TC = 25°C, Isup = 0.9 A, with thermal compensation) Characteristic Output Power @ 28 V (Peak Sync. B/G standard) Symbol Min Typ Max Unit Pout 230 240 — W 8.0 9.0 — dB Power Gain @ black level (Psync = 230 W, VCC = 28 V) Gp (1) Temperature is measured at temperature test point (on the flange of the transistor). (2) Tuned in the factory for optimum thermal correction @ 25°C. (3) Thermal correction cannot be disconnected, and CW performances are slightly affected (– 5.0 W, – 3% typical), but output power with a video signal remain the same. REV 1 MOTOROLA RF DEVICE DATA Motorola, Inc. 1997 MRFA2604 1 MAXIMUM PEAK SYNCH. OUTPUT POWER (CW) MAXIMUM AVERAGE OUTPUT POWER (CW) TYPICAL CHARACTERISTICS 200 180 160 140 120 100 80 60 40 20 0 0 10 20 30 40 50 60 70 TRANSISTOR FLANGE TEMPERATURE (°C) 80 400 360 320 280 240 200 160 120 80 40 0 0 10 20 30 40 50 60 70 TRANSISTOR FLANGE TEMPERATURE (°C) 80 Figure 1. Maximum Average Output Power versus Temperature Figure 2. Maximum Peak Synch. Output Power (B/G Standard) versus Temperature DIFFERENTIAL GAIN (%) WITH APL 10% / 90% DIFFERENTIAL GAIN (%) WITH APL 10% / 90% 10 8 6 4 2 0 –2 –4 –6 –8 –10 (TYPICAL) 10 8 6 4 2 0 –2 –4 –6 –8 –10 (TYPICAL) Figure 3. Without Thermal Compensation Figure 4. With Thermal Compensation BALUN OUTPUT MATCHING NETWORK OUTPUT BALUN VCC OUTPUT MATCHING NETWORK BALUN INPUT INPUT MATCHING NETWORK BIAS CIRCUIT (*) INPUT MATCHING NETWORK 50 Ω LOAD BALUN WARNING: Please read instructions carefully for operating/set–up and mounting recommendations prior to operating this device. (*) 50 Ω LOAD * Loads positions can be inverted if required. Figure 5. Internal Schematic and External Connections MRFA2604 2 MOTOROLA RF DEVICE DATA CW MEASUREMENTS WITHOUT THERMAL COMPENSATION** (see Figure 23) 0 GAIN COMPRESSION (dB) PG, POWER GAIN (dB) 10 9 VCC = 28 V ICQ = 500 mA Pout = 180 W 8 450 1 VCC = 28 V ICQ = 500 mA Pout = 180 W 2 900 450 900 f, FREQUENCY (MHz) f, FREQUENCY (MHz) Figure 6. Power Gain versus Frequency Figure 7. Gain Compression versus Frequency 14 11 POWER GAIN (dB) SUPPLY CURRENT (A) HOT (TENTH SWEEP) 13 12 11 VCC = 28 V ICQ = 500 mA Pout = 180 W 10 450 10 COLD (FIRST SWEEP) VCC = 28 V ICQ = 500 mA Pmax = 200 W 9 900 – 20 0.00 f, FREQUENCY (MHz) Pin, POWER (dB) Figure 8. Supply Current versus Frequency Figure 9. Power Gain versus Input Power ** Measurement results are typical values and are not guaranteed MOTOROLA RF DEVICE DATA MRFA2604 3 VIDEO MEASUREMENTS WITH THERMAL COMPENSATION, B/G STANDARD (Measurement results are typical values and are not guaranteed) DIFFERENTIAL GAIN (%) / CHANNEL 69 / 28 V/900 mA 190 W SYNC DIFFERENTIAL GAIN (%) / CHANNEL 69 / 28 V/900 mA 10 8 10 8 240 W SYNC 6 6 4 2 4 2 0 –2 –4 0 –2 –4 –6 –6 –8 –10 –8 –10 Figure 10. Differential Gain 190 W Sync Figure 11. Differential Gain 240 W Sync DIFFERENTIAL PHASE (°) / CHANNEL 69 / 28 V/900 mA DIFFERENTIAL GAIN (°) / CHANNEL 69 / 28 V/900 mA 6 6 190 W SYNC 240 W SYNC 4 4 2 2 0 0 –2 –2 –4 –4 –6 –6 Figure 12. Differential Phase 190 W Sync Figure 13. Differential Phase 240 W Sync “RED FIELD” / CHANNEL 69 / 28 V/900 mA “RED FIELD” / CHANNEL 69 / 28 V/900 mA 190 W SYNC 240 W SYNC SIDE BAND REGENERATION 10 dB/div–2 MHz/div SIDE BAND REGENERATION 10 dB/div–2 MHz/div Figure 14. “Red Field” 190 W Sync Figure 15. “Red Field” 240 W Sync MRFA2604 4 MOTOROLA RF DEVICE DATA VIDEO MEASUREMENTS WITH THERMAL COMPENSATION, BG STANDARD (Measurement results are typical values and are not guaranteed) “HORIZONTAL SWEEP” / CHANNEL 69 / 28 V/900 mA “HORIZONTAL SWEEP” / CHANNEL 69 / 28 V/900 mA 190 W SYNC 240 W SYNC SIDE BAND REGENERATION 10 dB/div–2 MHz/div SIDE BAND REGENERATION 10 dB/div–2 MHz/div Figure 16. “Horizontal Sweep” 190 W Sync Figure 17. “Horizontal Sweep” 240 W Sync RELATIVE INPUT SYNC. LEVEL TO MAINTAIN OUTPUT SYNC. @ 27% OF RF POWER POWER SWEEP ON A NETWORK ANALYZER (GAIN MAGNITUDE & GAIN PHASE) 150 100 140 180 220 P, PEAK OUTPUT POWER (W) 9 260 0 – 20 0.00 Pin, POWER (dB) Figure 19. Power Gain versus Input Power 10 VCC = 28 V ICQ = 900 mA – 8 dB/– 16 dB/– 10 dB INTERMODULATION (dB) – 40 5 VCC = 28 V ICQ = 900 mA 0 10 8 Figure 18. Input Sync. versus Output Power TRANSMISSION DELAY (ns) VCC = 28 V ICQ = 900 mA Pmax = 200 W f = 860 MHz – 50 860 MHz 665 MHz 470 MHz – 60 f, FREQUENCY (MHz) 100 150 200 P, PEAK OUTPUT POWER (W) Figure 20. Delay versus Frequency Figure 21. Intermodulation versus Output Power 450 900 MOTOROLA RF DEVICE DATA POWER GAIN PHASE ( °) VCC = 28 V ICQ = 900 mA CHANNEL 69 BLACK LEVEL 200 100 20 10 POWER GAIN MAG. (dB) INPUT SYNC. AMPLITUDE (%) 250 50 250 MRFA2604 5 OPERATING AND SET–UP RECOMMENDATIONS 1. QUIESCENT CURRENT • With Thermal Compensation: The amplifier is tuned in the factory at 28 V/900 mA (total current) with the compensation “ON.” Depending on the temperature of the amplifier and of the RF transistor, this value can be slightly different but it does not affect the overall performances. • Without Thermal Compensation: If the amplifier has to be used without the compensation, P1 (tuning of quiescent current) has to be set–up in its initial position before applying power supply (see Figure 22). When power supply is applied P1 is tuned to obtain 500 mA. • Max. current: In any case IQ must not exceed 1.2 A. 2. THERMAL COMPENSATION The amplifier is tuned in the factory for optimum compensation at 180 W peak, B/G standard, channel 69. If the amplifier is used at a different level (driver for instance), the compensation may not be optimized and can be retuned by using P2. Figure 22. Initial Position of P1 15 50 Ω LOAD OUTPUT + VCC (GROUND TO CASE) P1 MRFA 2604 XXXX / XXX PATENTED DESIGN 84AST30028A P2 NOT CONNECTED: COMPENSATION “ON” CONNECTED TO VCC: COMPENSATION “OFF” (SEE SET–UP RECOMMENDATIONS) INPUT 50 Ω LOAD 15 Figure 23. MRFA2604 Connections 0.03 Ra 0.8 MOUNTING RECOMMENDATIONS 1. HEATSINK TOOLING • Flatness: better than 0.03 mm • Roughness: Typical value 0.8 2. SCREWS • CHC M3 x 10 for Copper/Aluminum Heatsink • Socket head cap screws • Material: Nickel plated steel 3. WASHERS • Split lock washers WZ ∅3 + Flat washers ZU ∅3 MRFA2604 6 MOTOROLA RF DEVICE DATA MOUNTING RECOMMENDATIONS (cont’) 5. THERMAL COMPOUND: • Paste with silicones: SICERONT KF Ref. 1201 Recommended. • Thickness: optimum between 0.06 mm and 0.15 mm, on the whole back surface of the amplifier. (Typical volume: 700 mm 3 for 0.1 mm thickness) (Equivalent weight: 1.5 g for 2.2 density paste). 16.7 115 4.7 55 3.5 8 3.5 OUTPUT 30 55.0 85 81.5 77.0 INPUT ÉÉÉ ÉÉÉ ÉÉÉ ÉÉÉ ÉÉÉ ÉÉÉ ÉÉÉ ÉÉÉ ÉÉÉ ÉÉÉ ÉÉÉ ÉÉÉ ÉÉÉ ÉÉÉ 5 (COMPONENT AREA) 111.5 8 3 1 6. TIGHTENING SEQUENCE: Engage all screws down to contact, then apply torque according to given sequence (see drawing on the right). 2 7. TORQUE: Maximum Recommended Torque: 12 Kg.cm (10.5 in. lbs.) 4 6 MOTOROLA RF DEVICE DATA 7 MRFA2604 7 PACKAGE DIMENSIONS A W NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. D Y Z F H R J 2 K Y L M S 4 N 3 P B 1 G Q T 14 PL U STYLE 1: PIN 1. RF INPUT 2. RF OUTPUT 3. DC VOLTAGE 4. CORRECTION GROUND TO PLANE V COMPONENT AREA MILLIMETERS DIM MIN MAX A 114.88 115.12 B 84.88 85.12 C ––– 14.0 D 59.9 60.01 E 2.0 2.4 F 3.4 3.6 G 3.15 3.35 H 9.9 10.1 J 26.8 27.0 K 31.9 32.1 L 52.9 53.1 M 58.0 58.2 N 74.9 75.1 P 81.4 81.6 Q 3.1 3.4 R 14.6 15.4 S 69.6 70.4 T 24.0 24.8 U 31.6 32.4 V 111.65 111.85 W 111.4 111.6 X 3.4 3.6 Y 42.1 42.9 Z 45.9 46.1 INCHES MIN MAX 4.523 4.532 3.342 3.351 ––– 0.551 2.358 2.366 0.079 0.094 0.134 0.142 0.124 0.132 0.390 0.398 1.055 1.063 1.256 1.264 2.083 2.091 2.283 2.291 2.949 2.957 3.205 3.213 0.122 0.134 0.575 0.606 2.740 2.772 0.945 0.976 1.244 1.276 4.396 4.404 4.386 4.394 0.134 0.142 1.657 1.689 1.807 1.815 C E CASE 439–01 Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different applications. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. 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Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, Toshikatsu Otsuki, 6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–3521–8315 MFAX: [email protected] – TOUCHTONE (602) 244–6609 INTERNET: http://Design–NET.com HONG KONG: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 MRFA2604 8 ◊ MOTOROLA RF DEVICE DATA *MRFA2604/D* MRFA2604/D