The TSC2200 is a complete PDA analog interface circuit. It contains a complete 12-bit, Analog-to-Digital (A/D) resistive touch screen converter including drivers, the control to measure touch pressure, keyboard controller, and an 8-bit Digital-to-Analog (D/A) converter output for LCD contrast control. The TSC2200 interfaces to the host controller through a standard SPI serial interface. The TSC2200 offers programmable resolution and sampling rates from 8- to 12-bits and up to 125kHz to accommodate different screen sizes.
The TSC2200 also offers two battery-measurement inputs capable of reading battery voltages up to 6V, while operating at only 2.7V. It also has an on-chip temperature sensor capable of reading 0.3°C resolution. The TSC2200 is available in a TSSOP-28 and a QFN-32 package.
SPI is a registered trademark of Motorola.
US Patent No. 624639.
| SAR ADC resolution (Bits) | 12 |
| SAR sample rate (max) (ksps) | 125 |
| Touch panel | 4-Wire |
| Control interface | SPI |
| Vref (int/ext) | Internal |
| Rating | Catalog |
| Operating temperature range (°C) | -40 to 85 |
| Analog supply (min) (V) | 2.7 |
| Analog supply voltage (max) (V) | 3.6 |
| I/O supply voltage (min) (V) | 4.5 |
| I/O supply voltage (max) (V) | 26 |
| Input type | Single-ended |
| TSSOP (PW) | 28 | 62.08 mm² 9.7 x 6.4 |
| VQFN (RHB) | 32 | 25 mm² 5 x 5 |