SD1448 (TCC598) RF & MICROWAVE TRANSISTORS UHF 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. 1. Collector 2. Emitter 3. Base 4. Emitter ABSOLUTE MAXIMUM RATINGS (T case = 25 ° C) Symbol Parameter Value Unit VCBO Collector-Base Voltage 45 V VCEO Collector-Emitter Voltage 25 V VEBO Emitter-Base Voltage 4 V Device Current 1.6 A Power Dissipation 31.8 W TJ Junction Temperature +200 °C T STG Storage Temperature − 65 to +150 °C 5.5 °C/W IC PDISS THERMAL DATA RTH(j-c) Junction-Case Thermal Resistance November 1992 1/6 SD1448 (TCC598) ELECTRICAL SPECIFICATIONS (T case = 25 ° C) STATIC Symbol Value Test Conditions Min. Typ. Max. Unit BVCBO IC = 10mA IE = 0mA 45 — — V BVCEO IC = 20mA IB = 0mA 25 — — V BVEBO IE = 2.5mA IC = 0mA 3.0 — — V I CBO VCB = 28V IE = 0mA — — 0.9 mA hFE VCE = 20V IC = 500mA 10 — — — DYNAMIC Symbol Value Test Conditions Min. Typ. Max. Unit P OUT 1 f = 860 MHz VCE = 25 V IC = 850 mA 4.0 — — W GP2 f = 860 MHz VCE = 25 V IC = 850 mA 7.0 — — dB IMD33 PSYNC = 4 W VCE = 25 V IC = 850 mA — — −60 dBc f = 1 MHz VCB = 25 V — — 20 pF COB Note 1: P IN = Note 2: P OUT 0.8W = 4W =4 −8dBc −16dBc −7dBc Note 3: Levels relative t o P SYNC = f2 = f3 = f1 2/6 860.0 MHz 863.5 MHz 864.5 MHz W SD1448 (TCC598) TYPICAL PERFORMANCE POWER OUTPUT vs POWER INPUT INTERMODULATION DISTORTION vs POWER OUTPUT THERMAL RESISTANCE vs CASE TEMPERATURE 3/6 SD1448 (TCC598) TEST 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 : 4/6 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 D1 : 1N 4001 or 1N 914 L1 L2 L3 L’3 L4 L5 L6 : : : : : : : 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 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 L7 L8 L9 L10 L11 L12 L13 : : : : : : : P1 : 3.3kΩ Adjustable R1 : R2 : R3 : R4, R6 : R5, R7 : 2.2Ω, 3W SFERNICE 100Ω, 1/2W 51Ω, 1/2W 100Ω, 1/2W 56Ω, 1W T1 : BDX 54 B S1 : 6 Turns, Wire Diameter 0.5mm on 2.5mm Internal Diameter : 10 to 12 Turns on R6, Wire Diameter 0.5mm S2 PC Board Material : Er = 2.5, .020” Thick SD1448 (TCC598) TEST CIRCUIT LAYOUT 5/6 SD1448 (TCC598) PACKAGE 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