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| www..com HL3279 PREAMPLIFIER FOR REMOTE CONTROL USE General Descriptions ! ! ! ! ! !" ! ! ! " Features #$% &' '())' #* + #,+ #-. "/01 23!43! 3!563!)437 # . #%2% 8 7 #% " 1/5 HL3279 Floor Planning Diagram =>2;;6!;)67 26!67 9 :;;6+;)6 9/01%&:;66+;662 !<6+;667 PADs Descriptions /01, /01, 1 ; ' '/ @/--. &5 2 ?,1%/A,7 ?,1 ?/ 5 , & / ) 4 < ;6 ;; ; ; ;5 ;) ;4 */; */ & & &; ?,1 %=/= ) 5 ; /01 2 7 @/--. . ?,12&;(&57%/A, ?/ % & %/ /012C!D7 6);)<) ; 4);6<<) ; 46; ; ;) ;)<6;6 ;)<)4<5 ;)<6)<55 ;)<6);6;5 ;)<6);;<5 ;)<6);)5 ; ););) ;;55 / + B <5;55 .27@/- 4);55 2 7 );4);55 4);55 2/5 HL3279 Functional Block Diagram ' " & , E %= -&/ -/ 9-2.7 "5 :3!43!566F! 3!)43 -2-.7 3 43 3 5663 )43 ?,1 /01&*2&;!&!&!&57 , &;2/01 7 ? &2/01<7 ? &2/017 ? &52/017 ? Application Circuits (e.g. 37.9kHz) ' # ! &;&&&5 HL3279 "! $% %= ?,1 3/5 HL3279 Absolute Maximum Ratings Parameter Supply Voltage Output Voltage Output Current Operating Temperature Storage Temperature Symbol Vcc Vout Iout Topr Tst Min. 0 0 0 -25 -40 Max. 6.0 6 2.5 85 125 Unit V V mA Conditions ' ( )* + , ( , ( , ( -* * , ( , ( .#!/##!0"! 12 ( # * ( , * Recommended Operating Conditions Parameter Operating Voltage Input Frequency Operating Temperature Symbol Vcc fin Topr Min. 2.7 30 -20 Typ. 38 25 Max. 5.5 60 80 Unit V kHz Conditions 4/5 HL3279 Electrical Specifications . ( + $ 2 ( 34#567#1 Parameter Supply Current Max. Input current Max. Voltage gain Symbol Icc IIN Av Min. Typ. Max. Unit 0.3 80 0.8 95 1.5 0.8 110 mA mA dB Conditions Iin = 0 Vin = 0 V fin=37.9kHz Vin=30p-p AGC Off -3dB Bandwidth Vin=30p-p fin=37.9kHz, burst wave Vin=500 p-p note*1 fin=37.9kHz, burst wave Vin= 50mVp-p note*1 - BPF Bandwidth fBW 2 3.3 5 kHz tPW1 Output pulse width tPW2 Low level output voltage High level output voltage 500 600 700 500 600 700 VOL - 0.2 0.4 V VOH 2.8 3.0 - V - ,;: 8 " :,;6<9=>? 877 977 877 977 8% 5/5 HL3279 Characteristic Curves .( #547#2 1 Center frequency() Temperature() Temperature( ) Max. voltage gain(dB) !"##$ |
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