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B-64 IntelliTouch/SecureTouch Guide
IntelliTouch 2500U USB Controller
Electrical
Supply Voltage and
Current
+5 Vdc, nominal (+4.75 to +5.25 Vdc).
50 mA, typical at +5 Vdc. Average power dissipation is 0.25 W, typical.
Supply must be capable of sourcing 100 mA, minimum.
Total noise and ripple requirement must be less than 100mV (p-p) for frequencies
below 1MHz, and less than 50mV (p-p) for frequencies above 1MHz.
Interface
USB High Speed
Plug and play compatible
Operating Modes
IntelliTouch SmartSet protocol.
Initial/Stream/ Untouch/ Z-axis Enable Modes.
Touch Resolution
Approximately 4096x4096, size independent, 255 levels of Z (pressure).
Conversion Time
Approximately 10.4 ms per coordinate set.
Reliability
MTBF greater than 345,000 hours per MIL-HDBK-217-F2 using the parts stress
calculation method
for the ground benign environment with an ambient
temperature of 25°C
Environmental
Temperature
Operating: 0°C to 65°C
Storage: -25°C το 85°C
Humidity
Operating: 10% to 90% RH, non-condensing.
Storage: Same.
Operating Altitude
10,000 feet.
Shock and Vibration
Three axis sine wave, 50Hz to 2kHz, 1G, 2 minutes/Octave with dwell on resonance.
ESD
Per EN 6100-4-2 1995: Level 4. Contact discharge 8kV, air discharge 15kV
Flammability
The printed circuit board substrate is rated 94V0. All plastic components, such as
headers and connector, are also rated 94V0.
Physical
Characteristics
Construction
Four-layer surface-mount design with internal ground plane for EMI suppression.
Dimension
Total Width: 2.36 inches (59.94 mm), including connectors
Total Length: 3.51 inches (89.03 mm), including connector
Total height: 0.61 inches (15.44 mm)
All mounting holes are plated through-holes for chassis ground connection. Refer to
the drawings at the end of this document.
Connectors and Pin
Definitions
The connector configuration permits the controller to be placed in-line between the
touchscreen and a USB hub or host attachment.
USB Output
Connector
The USB connector, P2, is a USB Series “B” receptacle as specified in section 6.5 of
the USB specification, version 1.1. The pins are numbered as shown on page
Table B.1 on page 66.