What do you know about Cypress IC--enhancing anti-noise ability

The impact of the Sensor on TP performance is huge.
In the capacitive touch screen module, the sensor is the sensor, and the controller IC is the analog-to-digital converter. The sensor is good or bad, directly affecting the quality of the signal received by the IC. For example, mobile phone antennas, good antennas receive better signals, and poor antennas receive poorer signals.

From the structure point of view, sensor is divided into two categories, DITO and SITO, which are double-sided ITO and single-sided ITO.
From the material point of view, sensor is mainly divided into two categories, namely Glass and Film. Of course, there are also types of ITO directly plated on PMMA, but not mainstream.

DITO uses the lower layer TX for shielding, so no shielding layer is needed. SITO's TX and RX are all on one layer, so you need a shield on the back. Technical improvements can remove the back shield. In general, the DITO structure with the apple pattern is nearly perfect. The defect is that the linearity and the dangling performance are not good enough, especially after the conver lens is thinned. Cypress Technology has introduced a DITO structure with a mesh pattern to solve the linearity and dangling problems.

The SITO structure usually adopts a diamond diamond pattern. This pattern has many problems, and the power supply noise is large, linearity, floating, and poor waterproof performance. Cypress's SITO structure plus bee pattern has been very DITO structure plus mesh pattern performance.

  Because the FLASH process does not support high voltage, it can be seen that other chips in the market need high voltage when it needs to externally boost the chip. In addition to the boost, the Cypress chip adds a lot of algorithms and adopts its own patented SENSOR pattern, so in the letter The noise ratio can be done very well.

That's why Cypress has always emphasized the use of the graphics recommended by Cypress.