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CH315G

ETC
Part Number CH315G
Manufacturer ETC
Description USB extension controller
Published Aug 31, 2015
Detailed Description The DataSheet of CH315 (the first) 1 USB extension control chip CH315G USB signal isolation control chip CH315H DataSh...
Datasheet PDF File CH315G PDF File

CH315G
CH315G

Overview
The DataSheet of CH315 (the first) 1 USB extension control chip CH315G USB signal isolation control chip CH315H DataSheet Version:1A http://wch.
cn http://wch-ic.
com 1.
Introduction CH315G is USB extension control chip, used for USB signal real time transmit and extend transfer distance.
CH315H is USB signals isolation control chip, used for USB bus optical isolator or magnetic isolator.
CH315 supports full-speed and low-speed transfer, support USB device dynamic insert and remove.
The following is application image.
Power PC Or other USB Host USB CH315G Power CH315G Power Upstream UP#=GND Long distance Signal transfer Full-speed 75m Low-speed 300m Downstream UP#=VCC USB USB keyboard USB mice USB Flash Drive /Flash disk USB printer USB collection box USB controller PC Or other USB Host Power USB CH315H Upstream UP#=GND Photic coupler isolator CH315H Power Magnetic coupler isolator Downstream UP#=VCC USB USB keyboard USB mice USB Flash Drive /Flash disk USB printer USB collection box USB controller 2.
Features ● supports 12Mbps full-speed and 1.
5Mbps low-speed USB transfer, compatible with USB 2.
0.
● supports USB control transfer, bulk transfer, interrupt transfer, synchronous/isochronous transfer.
The DataSheet of CH315 (the first) 2 ● automatically detect USB Full-Speed or USB Low-Speed, CH315H offer USB transfer status indication.
● the same chip can be configured as upstream mode and downstream mode, connect to USB-Host and USB-Device.
● the downstream mode can automatically detect USB device connection and removal, the upstream mode can automatically simulate USB device connection and removal.
● set impedance matching serial resistor of USB signal, pull-up resistor of USB device port, pull-down resistor of USB host port.
● set PLL and 12MHz USB clock internal, no need crystal or crystal resonator, the peripheral circuit is simply.
● set USB signal extension circuit in the CH315G, support category 5 or category 5 unshielded twisted-pair...


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