PARIS — Infineon Technologies AG announced it has introduced wireless control receivers that offer enhanced sensitivity, lower power consumption and flexible multi protocol support.
Infineon claimed that the TDA5240, TDA5235 and TDA5225 devices provide multi-band support (315MHz, 434MHz, 868MHz and 915MHz) for worldwide coverage. They are suitable for various automotive applications, including Remote Keyless Entry (RKE) systems, Tire Pressure Monitoring Systems (TPMS), remote start, control, status and alarm functions.
The wireless control devices, Infineon continued, also apply to industrial and consumer systems such as short range radio data transmission, garage door openers, cordless alarm systems, remote metering and low-power telemetry.
High sensitivity of the new family (typically -119dBm for FSK and typically -116dBm for ASK) can be explained by a reduced noise figure and noise bandwidth using improved digital signal processing. The TDA5240/35/25 devices provide a data rate with several embedded encodings and modulation schemes specified at up to 112kchip/s (FSK), the Munich-based company explained.
The wireless control receivers are based on a CMOS process providing low power consumption. The supply current is only 0.8µA in power down and 12mA in run mode.
Infineon noted that the pin-compatible TDA5240/35/25 wireless control receivers in TSSOP-28 packages are now available in volume production. The automotive qualified devices operate at a supply voltage of 3.3V or 5.0V and at the temperature range of -40°C to 105°C.
Single unit price for 50k ordering quantities starts at $1.10 for the TDA5225.
For additional information about the TDA5240, click here, about the TDA5235, click here, and about the TDA5225, click here.