USBOTG function switching circuit based on PX2 chip
The utility model provides a USBOTG function switching circuit based on PX2 chip, including USB power source detection circuit, USB supply circuit, OTG_ID and ADC_KEY control circuit and USB connecting circuit, OTG_ID and ADC_KEY control circuit's input be connected to on -vehicle multimedia te...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model provides a USBOTG function switching circuit based on PX2 chip, including USB power source detection circuit, USB supply circuit, OTG_ID and ADC_KEY control circuit and USB connecting circuit, OTG_ID and ADC_KEY control circuit's input be connected to on -vehicle multimedia terminal to the external tapping seat, its first output is connected to a IO mouth of PX2 chip, the 2nd IO mouth of second output connection, USB supply circuit's input is connected to the 3rd IO mouth, and the output is connected to the USB connecting circuit, USB power source detection circuit's input is connected to the USB connecting circuit, and its first output is connected to fourth IO mouth, and the second output is connected to the 5th IO mouth, USB interface connection to the USB interface of USB flash disk or the USB interface of computer of USB connecting circuit. The utility model discloses can realize the USBOTG function, convenient operation, it is efficient.
本实用新型提供了种基于PX2芯片的USB OTG功能切换电路，包括USB电源检测电路、USB供电 |
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