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FT931Q-R 데이터시트(PDF) 51 Page - Bridgetek Pte Ltd. |
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FT931Q-R 데이터시트(HTML) 51 Page - Bridgetek Pte Ltd. |
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51 / 65 page ![]() Copyright © Bridgetek Pte Ltd 51 FT93x Datasheet Embedded Microcontroller Datasheet Version 1.5 Document Reference No.: BRT_000051 Clearance No.: BRT#049 6 Application Information 6.1 Crystal Oscillator The crystal oscillator operates at a frequency of 12MHz. The oscillator can operate in one of two following configurations. 6.1.1 Crystal oscillator application circuit Figure 6-1 Crystal Oscillator Connection Feedback resistance is integrated on chip; only a crystal and capacitors CL need to be connected externally. With the proper selection of crystal, the oscillator circuit can generate a good quality signal for the FT93x. Parameter CL is typically 12pF but should be checked with the crystal manufacturer. 6.1.2 External clock input Figure 6-2 External clock input The 12MHz input clock signal connects XI to internal oscillator directly. The XIO pin can be left unconnected. |
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