PSB21473FV13XT Infineon Technologies, PSB21473FV13XT Datasheet - Page 545
PSB21473FV13XT
Manufacturer Part Number
PSB21473FV13XT
Description
Manufacturer
Infineon Technologies
Datasheet
1.PSB21473FV13XT.pdf
(664 pages)
Specifications of PSB21473FV13XT
Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (min)
3.135V
Operating Supply Voltage (max)
3.6V
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
144
Lead Free Status / RoHS Status
Compliant
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•
Figure 22-22 Full Speed USB Driver Signal Waveforms
Generally, full speed and low speed USB devices are differentiated by the position of the
pullup resistor on the downstream end of the cable. Full speed devices are terminated
with the pullup on the D+ line and low speed devices are terminated with the pullup in
the D- line. As the INCA-D is a full speed device an external pull-up resistor (R
connected to the D+ line as shown in figure 22-23. The pullup terminator is a 1.5 k
resistor tied to a voltage source (VTERM) between 3.0 and 3.6 V referenced to the local
ground. In some cases it might be necessary to hide the USB device from the host even
when it is plugged in. To accomplish this, the pull-up resistor R
with a port a transistor. According to the USB specification, the voltage VTERM has be
controlled by the voltage on the USB bus (VBUS=5V), ie. if the INCA-D is detached
(VBUS=0), VTERM has to be 0V too.
•
Figure 22-23 High Speed Device Cable and Resistor Connection
Data Sheet
FS: Full Speed
LS: Low Speed
Host or
Hub Port
FS / LS USB
Transceiver
Driver
signal pins
Receiver
signal pins
R
V
V
D+
D-
1
SS
SS
R
One bit time
(12 MB/s)
1
V
V
SE
SE
max
min
Twisted Pair Shielded
5 meters max.
One-way trip cable delay
545
Signal pins pass
input spec levels
after one cable
delay
2
can be made switchable
MCT03414
R
R
Full Speed Device
2
2
D+
D-
Note:
Timings and voltage
levels comply to the
USB V1.1 spec
FS / LS USB
Transceiver
USB Module
PSB 21473
INCA-P
2003-03-31
2
) must be
INCA-D
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