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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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A8285SLB датащи(PDF) 13 Page - Allegro MicroSystems |
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A8285SLB датащи(HTML) 13 Page - Allegro MicroSystems |
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13 / 17 page  13 Worcester, Massachusetts 01615-0036 (508) 853-5000 115 Northeast Cutoff, Box 15036 www.allegromicro.com A8285/A8287 LNB Supply and Control Voltage Regulator Note that to add additional connec- tions, e.g. SCL, SDA, IRQ, VIN, EXTM, ADD, TDO, and TDI, some modifications to the control ground plane will be necessary. Refer to Functional Block diagram for circuit connections. PCB Layout Diagram Power-on Reset I2C Sequence ADR READ A A R S T S P ADR WRITE A A W S T S P Master Responds to IRQ Reads Status VUV = 1 Master Writes Enables output SDA IRQ VUV reset VREG VIN READ N VUV = 0 OUTPUT Thermal Via Cut in 0V Plane + + C1 C5 C2 C8 C7 C6 C4 L1 L2 R1 + D1 + D2 13 15 14 18 17 16 22 21 20 19 24 23 VIN (INPUT) Tracking 0V Plane C3 Control 0V Control 0V Control 0V Switcher 0V 1 12 4 3 2 7 6 5 10 9 8 11 C9 0V 0V |
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