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| LM339 |
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HTC |
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4 page
QUAD VOLTAGE COMPARATOR LM339 TYPICAL APPLICATIONS HTC 163 LAMP V+(12VDC) 2N2222 +vc FREQUENCY CONTROL VOLTAGE INPUT 100㏀ 500㎊ 50㏀ 20㏀ 20㏀ V+ 10 OUTPUT1 OUTPUT2 0.1㎌ V+/2 + - + - 3.0㏀ 100㏀ V+/2 0.01㎌ 5.1㏀ 3.0㏀ V+ - + TWO-DECADE HIGH-FREQUENCY VCO +VREF HI - + - + Rs 2Rs ~ +VIN +VREF LOW LIMIT COMPARATOR 2Rs 10㏀ +VREF (-1.4VDC) - + V0 -12VDC 10㏀ -5VDC -12V 0 TTL-to-MOS LOGIC CONVERTER 2.0㏀ 100㏀ f=100㎑ 0.1㎌ 200㏀ CRYSTAL + - 0 V0 V+ 200㏀ V+ CRYSTAL-CONTROLLED OSCILLATOR +5VDC 360 100K + - +5VDC 100 +VREF4 360 100K + - 100 +VREF1 V0 VISIBLE VOLTAGE INDICATOR V+=+30VCC +25㎷DC≤VC≤+50VDC 700Hz≤fO≤100kHz ¼LM339 ¼LM339 ¼LM339 ¼LM339 360 100K + - 100 +VREF3 +5VDC 360 100K + - 100 +VREF2 +5VDC |
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