This datasheet provides detailed information about Semtech's SX8652 high performance touchscreen controller, which can control 4-wire and 5-wire resistive touch screens for applications such as PDAs, portable instruments, and POS terminals.
The SX8652 is a very low‑power, high‑reliability controller for 4‑wire and 5‑wire resistive touch screens used in PDAs, portable instruments and point‑of‑sale terminals. It operates from 1.65 V to 3.7 V and includes on‑chip 15 kV ESD protection.
The device features a 12‑bit SAR ADC, SPI serial interface, four programmable operation modes (manual, automatic, pen‑detect, pen‑trigger) and optional on‑chip data averaging to reduce host activity. It is offered in 14‑lead DFN (4 mm × 3 mm) and 12‑ball WLCSP (1.5 mm × 2 mm) packages.
| Supply Voltage Range | 1.65 V – 3.7 V |
|---|---|
| ADC Resolution | 12 bits |
| Package Options | 14‑lead DFN 4.0 mm × 3.0 mm; 12‑ball WLCSP 1.5 mm × 2.0 mm |
The controller operates from 1.65 V up to 3.7 V.
It is controlled via a high‑speed SPI serial interface.
The on‑chip SAR ADC provides 12‑bit resolution.