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DIO1521 Datenblatt(PDF) 4 Page - DIOO MICROCIRCUITS CO., LTD |
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DIO1521 Datenblatt(HTML) 4 Page - DIOO MICROCIRCUITS CO., LTD |
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4 / 12 page ![]() DIO1521 Version 1.0, Oct 2024 www.dioo.com © 2024 DIOO MICROCIRCUITS CO., LTD. 1 1. Pin Assignment and Functions Figure 1. QFN1.8*1.4-10 (Top view) Pin Name Description VCC Power supply GND Ground EN Enable pin. Active high SEL Switch selection. Low = SBU1 to SENSE, SBU2 to MIC; High = SBU1 to MIC, SBU2 to SENSE SBU1, SBU2 Common terminal SENSE Audio ground reference output MIC Microphone signal NC No connection Table 1. Truth table EN Pin SEL Pin Function Low Low All OFF Low High All OFF High Low SBU1 to SENSE, SBU2 to MIC High High SBU1 to MIC, SBU2 to SENSE |
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