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KA9270D Datasheet(PDF) 1 Page - Samsung semiconductor |
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KA9270D Datasheet(HTML) 1 Page - Samsung semiconductor |
1 / 7 page KA9270 AUDIO FILTER INTRODUCTION The KA9270 is a monolithic integrated circuit designed for audio filter. It is used in compact disc player, digital audio tape recorder, etc. FEATURES • Functions: • Gain adjustable of audio output • Minimum number of external parts required • Recommand operation supply voltage range : 5.0 ~ 12.0V BLOCK DIAGRAM Device Package Operating Temperature KA9270 20-DlP-300A KA9270D 20-SOP- 375 20 19 18 17 16 15 14 13 12 11 1 2 3 4 5 6 7 8 9 10 - + - + - + - + - + MUTE SW DE-EM SW - + - + BUFFER2 BUFFER1 DE-AMP2 DE-AMP1 Vcc LPF1 LPF2 LPF OUTPUT2 LPF2B V REF RIPPLE DE-EMPHA CTL DE-EMPHA OUT2 DE-EMPHA IN3 BUFFER OUT2 INPUT2 1/2Vcc-AMP GND LPF OUTPUT1 LPF1B MUTE CONTROL INPUT DE-EMPHA CONTROL INPUT DE-EMPHA CTL DE-EMPHA OUT1 DE-EMPHA IN1 BUFFER OUT1 INPUT1 20 °C ~ +75°C 20-DIP-300A 20-SOP-375 Fig. 1 * Buffer for impedence matching * Low pass filter * De - emphasis control * Mute control * Reference voltage circuit ( 1/2 VCC AMP ) |
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Similar Description - KA9270D |
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