HANSONG HSBT3031-08, Руководство пользователя

Страница: 11 / 34

HSBT3031-08 module_datasheet Version2.0– Jun. 15 th
HANSONG ( NANJING) TECHNOLOGY CO.,LTD
11
positive
41 HPR_N/SPKR_N Analog Headphone/speaker differential
right output, negative.
Alternative function:

Differential right line output,
negative
42 HPR_P/SPKR_P Analog Headphone/speaker differential
right output, positive.
Alternative function:

Differential right line output,
positive
43 HPL_N/SPKL_N Analog Headphone/speaker differential
left output, negative.
Alternative function:

Differential left line output,
negative
44 HPL_P/SPKL_P Analog Headphone/speaker differential
left output, positive.
Alternative function:

Differential left line output,
positive
45 GND GND Common Ground
7 Interfaces
7.1 USB Interface
HSBT3031-08 has a USB device interface: An upstream port, for connection to a host
Phone/PC or battery charging adaptor.
7.1.1 USB device port
The device port is a USB2.0 Full Speed (12 Mb/s) port. Typically HSBT3031-08 enumerates
as a compound device with a hub with the enabled audio source / sink / HID / mass storage
device appearing behind this hub.
The DP 1.5 k pull-up is integrated in HSBT3031-08. No series resistors are required on the
USB data lines.
HSBT3031-08 contains integrated ESD protection on the data lines to IEC 61000-4-2 (device
level). In normal applications, no external ESD protection is required.
Extra ESD protection is not required on VCHG (VBUS) because HSBT3031-08 meets the USB