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USB3316C-GM-TR Datasheet(PDF) 4 Page - Microchip Technology |
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USB3316C-GM-TR Datasheet(HTML) 4 Page - Microchip Technology |
4 / 13 page Hi-Speed USB Transceiver with 1.8V ULPI Interface - 19.2MHz Reference Clock Revision 2.1 (06-10-10) 4 SMSC USB3316 REV C PRODUCT PREVIEW The USB3316 is designed to run with a 19.2MHz reference clock. By using a reference clock from the Link the USB3316 is able to remove the cost of a crystal reference from the design. The USB3316 includes a integrated 3.3V LDO regulator to generate its own supply from power applied at the VBAT pin. The voltage on the VBAT pin can range from 3.1 to 5.5V. The regulator dropout voltage is less than 100mV which allows the PHY to continue USB signaling when the voltage on VBAT drops to 3.1V. The USB transceiver will continue to operate at lower voltages, although some parameters may be outside the limits of the USB specifications. If the user would like to provide a 3.3V supply to the USB3316, the VBAT and VDD33 pins should be connected together. The USB3316 also includes integrated pull-up resistors that can be used for detecting the attachment of a USB Charger. By sensing the attachment to a USB Charger, a product using the USB3316 can charge its battery at more than the 500mA allowed when charging from a USB Host. The USB3316 also includes support for USB audio modes. The user can program the PHY into UART or audio mode while in synchronous mode. In USB UART mode, the USB3316 DP and DM pins are redefined to enable pass-through of asynchronous serial data. The USB3316 can only enter UART mode when the user programs the part into this mode. In USB audio mode, the DP pin is shorted to the SPKR_R/M pin with a switch. The DM pin is shorted to the SPKR_L pin. These switches are on when the RESETB pin of the USB3316 is asserted. Audio signals may be transferred over the USB cable. In addition to audio signals, the switches can also be used to connect Full Speed USB from another PHY onto the USB cable. |
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Similar Description - USB3316C-GM-TR |
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