Touch apparatus and touch detection integrated circuit thereof

A touch apparatus, comprising:

• a system processor;
• a touch panel;
• a fingerprint sensor;
• a touch detection integrated circuit, coupled to the touch panel, coupled to the system processor through an interface, and configured to drive the touch panel to receive at least one touch signal of the touch panel and drive the fingerprint sensor to receive at least one fingerprint signal of the fingerprint sensor, wherein the touch detection integrated circuit comprises:
• a driving signal generation circuit, configured to transmit at least one first driving signal to the touch panel and transmit at least one second driving signal to the fingerprint sensor,
• wherein the driving signal generation circuit comprises:
• an analog driving circuit, having an input terminal and an output terminal;
• a register, configured to store first driving waveform data and second driving waveform data;
• a control circuit, having an input terminal coupled to the register to read the first driving waveform data or the second driving waveform data stored in the register and an output terminal coupled to the input terminal of the analog driving circuit, controlling the analog driving circuit according to the first driving waveform data to generate the first driving signal during a first period, and controlling the analog driving circuit according to the second driving waveform data to generate the second driving signal during a second period, wherein the first driving signal is different from the second driving signal;
• and
• a demultiplexer, having an input terminal coupled to the output terminal of the analog driving circuit, a first output terminal coupled to the touch panel and a second output terminal coupled to the fingerprint sensor, selecting to transmit the first driving signal generated by the analog driving circuit to the touch panel during the first period and selecting to transmit the second driving signal generated by the analog driving circuit to the fingerprint sensor during the second period;
• and
• at least one receiving circuit, configured to receive and process the touch signal of the touch panel during the first period, and receive and process the fingerprint signal of the fingerprint sensor during the second period.