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Summary of Contents for Quantum Research Group QMatrix QT60486
- Page 1 E6486 U s e r M a n u a l T h e N e w V i s i o n T o u c h ™...
- Page 2 QT60486 and QT60326 QMatrix™ IC Evaluation and Development Kit OVERVIEW This kit is designed for evaluation and development of QT60486 and QT60326-based glass touch matrix circuits. It includes all circuitry and materials required to make a fully- functioning, 48-key matrix touch control. This board has an RS232 serial interface that allows connection to a PC for function setup and data viewing.
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Page 3: Board Preparation
BOARD PREPARATION Before powering up, prepare the matrix panel and board using the following steps: Place the panel on a bench so that it will be elevated and mechanically stable, otherwise you will get wildly fluctuating signal levels when you press on the panel. Attach the 9V battery snap (or other power leads) to the board's power terminal block. -
Page 4: Board Details
BOARD DETAILS Please refer to figure 2 on page 9 Power Terminal This screw terminal strip is used to power the board. The voltage should be between +8 and +20VDC. Power should be free from switching noise and short-term fluctuations for best performance. Be sure to check for low voltage periodically if using a battery;... -
Page 5: Schematic Diagram
SCHEMATIC DIAGRAM Figure 1 — Schematic Diagram... - Page 6 Sync/Sleep This input performs two functions: wake-up from sleep input, or noise synchronization input. Wake from Sleep via UART: Link this input to the Rx line to enable wake from sleep via UART. In this mode, the device will wake when a dummy transmission (a null byte) is received from the host over the UART RX line.
- Page 7 Figure 2 — Board Layout Power Status Communication SPI/ UART Oscilloscope Terminal Port Select Direct Port Sync Point RS232 Matrix (UART) Connector Reset/ Recal Sampling Button Resistor Network Table 1 — Matrix Connector Pinout XMn = X matrix drive pulses (driven by chip) YMn = Y matrix receive lines (input to chip)
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Page 8: Pcb Layers
PCB LAYERS Figure 3 — Silk Layer Figure 4 — Top Layer Figure 5 — Bottom Layer... - Page 9 TROUBLESHOOTER Board Will Not Bad Serial Connections Check/replace serial cable Communicate with PC Bad or Conflicting Com Port on PC Shut down other tasks that may also be using the same com port IRQ or I/O address on the PC Use a different PC Low Battery or Power Supply Out of Usable Range Restore power to within correct range...
- Page 10 w w w . q p r o x . c o m Corporate Headquarters North America 1 Mitchell Point 651 Holiday Drive Bldg. 5 / 300 Ensign Way, Hamble Pittsburgh, PA 15220 Southampton SO31 4RF United Kingdom 412-391-7367 +44 (0)23 8056 5600 412-291-1015 +44 (0)23 8045 3939 Email sales@qprox.com...
- Page 11 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Microchip E6486...
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