Usb Device Port (Xpico Wi-Fi Units Only); Table 2-11 Usb Host Port Signals - Lantronix xPico XPW100A003-01-B Integration Manual

USB D Device Po ort (xPic
The xP Pico Wi-Fi em
interfa ces for conne
pair, s ignals DDP a
on a s ignal layer ne
on the se signals. T
shown n in
port th hat is user acc
for ES D protection.
RCIam mp0502A. Th
chang es and simpli
and th e part can be
drawn off the USB M
ements. If the
require
uncon nected.
Pin Na ame
DDP
DDM
5V
Ground d
Figu ure 2-9 USB
xPico® Em mbedded Dev vice Server In
co Wi-Fi U Units On
mbedded devi ce server has
ection to an u pstream USB
and DDM. Th ese signals s
ext to the sign nal ground pla
The USB sign als can be co
2) directly to a an IC with a U
Table 2-1
cessible it is r recommended
The ESD ar rray shown in
is device feat tures through
ify routing. Th he footprint fo
e depopulated d if it is not ne
Mini Type B c connector be
e USB device e port is unuse
Tabl le 2-11 USB H
Descr ription
USB D Device Port
Positive e pin
USB D Device Port
Negativ ve pin
5V pow wer from USB
cable
Signal Ground
Device Inter rface Exampl
ntegration Gu uide
nly)
s one USB2.0 0 Full Speed D
B device. The e port consist
should be rout ted as a 90 o
ane. The use e of vias shou
onnected to a USB Mini Ty
USB host por rt. If connecti
d to add a TV VS diode array
the figure is o of type Semte
h pin routing to o minimize tra
or the TVS ar rray can be ad
eeded. It is re ecommended
limited to less s than 500mA
ed the DDP a and DDM pins
Host Port Sign nals
Conne ector Signa al
Pins Requi irement
22 Route as 90 ohm
differen ntial pair with
DDM s signal
24 Route as 90 ohm
differen ntial pair with
DDP s ignal
Curren nt limit to 500
mA pe r port
Ground Ground d plane
le (xPico Wi- -Fi unit only)
2: Fun nctional Descr ription
Device port
s of a differen ntial
ohm differentia al pair
ld be minimiz zed
ype B USB po ort (as
ng to an exte ernal
y to the signa al nets
ech
ace impedanc ce
dded to the P PCB
that the pow wer
A per USB
s may be left
Mini Type B B
USB Device e
connector p pin
3
2
1
5
)
25