VOLTAGE STABILIZER SILICON MONOLITHIC BIPOLAR INTEGRATED CIRCUIT VOLTAGE STABILIZER FOR ELECTRONIC TUNER FEATURES ABSOLUTE MAXIMUM RATINGS (T A= 25Î)

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1 SILICON MONOLITHIC BIPOLAR INTEGRATED CIRCUIT FOR ELECTRONIC TUNER TO-9 The is a monolithic integrated voltage stabilizer especially designed as voltage supplier for electronic tuners. FEATURES Low Temperature Coefficient Low Dynamic Resistance Typical Reference Voltage of 33V ABSOLUTE MAXIMUM RATINGS (T A= 5Î) Characteristic Symbol Value Unit Zener Current Power Dissipation (T A = 75Î) Operating Ambient Temperature- Range Storage Temperature Range I Z P D T OPR T STG ~ ~ 5 ma mw Î Î : Anode : Cathode ELECTRICAL CHARACTERISTICS (T A = 5Î) Characteristic Symbol Test Conditions Min Typ Max Unit Stabilized Voltage Stabilized Voltage-Temperature Drift Dynamic Resistance V Z LV Z/LT R Z I Z = 5mA I Z = 5mA T A = -0 to 75Î I Z = 5mA, f = KHz V mv/î SCHEMATIC DIAGRAM Cathode R4 D D D5 R3 Q3 Q R R Anode Rev. B 999 Fairchild Semiconductor Corporation

2 MEASURING CIRCUITS Fig. Measuring Circuit for Stabilized Voltage V Z A IZ = 5mA RB v Volt Meter EB Fig. Measuring Circuit for Dynamic Resistance Iz IAC = Iz + 0 A 50œF 00 RB VV Fig. 3 IZ 0.œF C VV ~ f = KHz EB Vz 0.5mA r Z = VV 0.5mA 5mA VV

3 TYPICAL APPLICATION Ri Ach Bch Ych Zch Vi C 5K 5K 5K Channel setting variable resistor c c É to tuning diodes (varactor) in case of Ych on ) UHF TUNER TR D5 TR Antenna D D TR : RF AMP: KSC393 KSC 070 (Under developm ent) TR : OSC: SKC730 D - : S0 D5: MIXER: SS6 AFC terminal ) VHF TUNER TR TR3 Antenna D D TR TR : RM AMP : KSC393 TR : MIXER : KSC394 TR3 : OSC : KSC730 D, : S09 D, : S07 Low/High Channel Switching term inal. AFC terminal

4 POWER-TEMPERATURE DERATING DURVE TYPICAL CHARACTERISTIC CURVES (T A = 5Î) AMBIENT TEMPERATURE (Î) fig. 9 STABILIZED VOLTAGE TEMPERATURE DRIFT vs. ZENER CURRENT Fig. 0 STABILIZED VOLTAGE VARIATION vs. TIME ZENER CURRENT (ma)

5 TRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. DISCLAIMER ACEx CoolFET CROSSVOLT E CMOS TM FACT FACT Quiet Series FAST FASTr GTO HiSeC ISOPLANAR MICROWIRE POP PowerTrench QS Quiet Series SuperSOT -3 SuperSOT -6 SuperSOT -8 TinyLogic UHC VCX FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein:. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. PRODUCT STATUS DEFINITIONS Definition of Terms. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. Datasheet Identification Product Status Definition Advance Information Preliminary No Identification Needed Formative or In Design First Production Full Production This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. This datasheet contains preliminary data, and supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. Obsolete Not In Production This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only.

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