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USB334X 数据表(PDF) 5 Page - Microchip Technology |
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USB334X 数据表(HTML) 5 Page - Microchip Technology |
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5 / 92 page  2009-2018 Microchip Technology Inc. DS00002646A-page 5 USB334x In USB audio mode, a switch connects the DP pin to the SPK_R pin, and another switch connects he DM pin to the SPK_L pin. These switches are shown in the lower left-hand corner of .The USB334x can be configured to enter USB audio mode as described in Section 6.7.2, "USB Audio Mode (USB3341 and USB3346)," on page 61. In addition, these switches are on when the RESETB pin of the USB334x is asserted. The USB audio mode enables audio signaling from a single USB port of connection, and the switches may also be used to connect Full Speed USB from another trans- ceiver to the USB connector. FIGURE 1-1: BLOCK DIAGRAM (USB3341, USB3346, AND USB3347) OTG USB DP/DM Switch Hi-Speed USB Transceiver ULPI Interface ULPI Registers and State Machine BIAS Low Jitter Integrated PLL Integrated Power Management VBUS ID DP DM RBIAS REFCLK DATA[7:0] RESETB VDD18 VDD33 VBAT DIR NXT STP CLKOUT OVP BC 1.1 |
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