paxdj.blogg.se - Irda altium footprint library

The additional signal IRDA_TXD_LED (active High) is used to light an associated Red LED to indicate transmission. The data is ultimately converted into infrared waves, via the IRED, and sent out to an IrDA transceiver in an external, neighboring device. Transmission is only possible provided IRDA_SD is Low. Serial data from a processor in the FPGA design is sent to the device on the IRDA_TXD line. If High, the device is placed in high-speed (MIR and FIR) mode. If IRDA_TXD is Low, the device remains in low-speed (SIR) mode. On the falling edge of this signal the TXD input is sampled. Taking the IRDA_SD signal High places the device in shutdown mode.

Dynamic mode control – control is performed using the IRDA_SD and IRDA_TXD signals from the FPGA design, which are wired to the device's SD and TXD pins respectively.

Keep this signal Low to remain in low-speed (SIR) mode. Take this signal High to place the device in high-speed (MIR and FIR) mode.

Explicit mode control – control is performed using the IRDA_MODE signal from the FPGA design, which is wired to the device's Mode pin.

The mode of the device can be explicitly or dynamically controlled:

Primary power for the device comes from the PB03's 3.3V supply, with the anode of the IRED connected to the board's 5V supply through a 2Ω resistance.Īfter power-on the device is set, by default, to operate in low-speed (SIR) mode. The TFDU6102 consists of a PIN photodiode for reception, an Infrared Emitting Diode (IRED) for transmission, and control logic. This controller transmits data using the NEC IR transmission protocol. The PB03 ships with a general purpose remote controller, featuring a range of common function buttons.