SD1448

SD1448 (TCC598) RF & MICROWAVE TRANSISTORS U HF TV/LINEAR APPLICATIONS . . . . . . 860 MHz 25 VOLTS COMMON EMITTER GOLD METALLIZATION CLASS A LINEAR OPERATION P OUT = 4.0 W MIN. WITH 7.0 dB GAIN .280 4L STUD (M122) epoxy sealed ORDER CODE SD1448 BRANDING TCC598 PIN CONNECTION DESCRIPTION The SD1448 is a silicon NPN bipolar device specifically designed for high linearity applications in the UHF frequency range including TV Bands IV and V. Gold metallization and emitter ballasting assure high reliability under Class A linear amplifier operation. ABSOLUTE MAXIMUM RATINGS (T case = 25 ° C) Symbol Parameter Value Unit 1. Collector 2. Emitter 3. Base 4. Emitter VCBO VCEO VEBO IC PDISS TJ T STG Collector-Base Voltage Collector-Emitter Voltage Emitter-Base Voltage Device Current Power Dissipation Junction Temperature Storage Temperature 45 25 4 1.6 31.8 +200 − 65 to +150 V V V A W °C °C THERMAL DATA RTH(j-c) Junction-Case Thermal Resistance November 1992 5.5 °C/W 1/6 SD1448 (TCC598) E LECTRICAL SPECIFICATIONS (T case = 25 ° C) STATIC Symbol Test Conditions Value Min. Typ. Max. Unit BVCBO BVCEO BVEBO I CBO hFE IC = 10mA IC = 20mA IE = 2.5mA VCB = 28V VCE = 20V IE = 0mA IB = 0mA IC = 0mA IE = 0mA IC = 500mA 45 25 3.0 — 10 — — — — — — — — 0.9 — V V V mA — DYNAMIC Symbol Test Conditions Value Min. Typ. Max. Unit P OUT 1 GP2 IMD33 COB Note 1: P IN f = 860 MHz f = 860 MHz PSYNC = 4 W f = 1 MHz = 0.8W VCE = 25 V VCE = 25 V VCE = 25 V VCB = 25 V IC = 850 mA IC = 850 mA IC = 850 mA 4.0 7.0 — — — — — — — — −60 20 W dB dBc pF Note 2: P OUT = 4W Note 3: Levels relative t o P SYNC = f2 = f3 = f1 860.0 MHz 863.5 MHz 864.5 MHz =4 −8dBc −16dBc −7dBc W 2/6 SD1448 (TCC598) T YPICAL PERFORMANCE POWER OUTPUT vs POWER INPUT INTERMODULATION DISTORTION vs POWER OUTPUT THERMAL RESISTANCE vs CASE TEMPERATURE 3/6 SD1448 (TCC598) T EST CIRCUIT C1 : C2, C6, C8, C15 : C3, C7, C9, C11, C16 : C4, C10 : C5, C15 : C12, C17, C18 : C13, C25 : C19 : C20 : C21, C24 : C22 : C23 : D1 L1 L2 L3 L’3 L4 L5 L6 22mF, 63V Sprague 4.7nF Chip LCC 100nF Chip LCC 4.7µF, 40V Sprague 4.7µF, 63V Sprague 470pF Chip LCC 47pF ATC 100B 47pF ATC 100A 0.5 - 4.5pF Adjustable Airtronic 0.8 - 5pF Adjustable Johanson 10pF ATC 100A 15pF ATC 100B L7 L8 L9 L10 L11 L12 L13 P1 : : : : : : : 4Ω Transmission Line, Length 8% λ at 860 MHz 55Ω Transmission Line, Length 7.5% λ at 860 MHz 7.5Ω Transmission Line, Length 8% λ at 860 MHz 100Ω Transmission Line, Length 8% λ at 860 MHz 20Ω Transmission Line, Length 8% λ at 860 MHz 50Ω Transmission Line, Length 5mm 50Ω Transmission Line, Length 12mm : 3.3kΩ Adjustable 2.2Ω, 3W SFERNICE 100Ω, 1/2W 51Ω, 1/2W 100Ω, 1/2W 56Ω, 1W R1 : R2 : R3 : R4, R6 : R5, R7 : T1 S1 S2 : 1N 4001 or 1N 914 : : : : : : : 50Ω Transmission Line, Length 18mm 50Ω Transmission Line, Length 22mm 16.4Ω Transmission Line, Length 12mm 10.5Ω Transmission Line, Length 3.5mm 20Ω Transmission Line, Length 13mm 50Ω Transmission Line, Length 2.5mm 20Ω Transmission Line, Length 23mm : BDX 54 B : 6 Turns, Wire Diameter 0.5mm on 2.5mm Internal Diameter : 10 to 12 Turns on R6, Wire Diameter 0.5mm PC Board Material : Er = 2.5, .020” Thick 4/6 SD1448 (TCC598) T EST CIRCUIT LAYOUT 5/6 SD1448 (TCC598) P ACKAGE MECHANICAL DATA Ref.: Dwg. No.12-0122 Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use ascritical components in life support devices or systems without express written approval of SGS-THOMSON Microelectonics. © 1994 SGS-THOMSON Microelectronics - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A 6/6