Wireless Control

TDA 7255V Reduces Costs and Footprint

TDA 7255V block diagram

As consumer devices continue to shrink, engineers are working hard to reduce PCB area and costs wherever possible.

TDA 7255V is a VQFN-40 package variant of Infineon’s popular TDA 5255 transceiver. This new device comes in a tiny package and delivers highest sensitivity performance. It is targeted specifically at highly size-sensitive industrial and consumer applications, such as small home automation or security and alarm systems.

TDA 7255V is an ASK/FSK single-channel transceiver for the 434MHz ISM frequency band. The device is highly integrated and requires only a few external components. The extreme low current consumption in receive, transmit and power-down mode and the wide supply voltage range make it ideal for home automation, industrial controls and low-bit-rate communications.

ASK and FSK operation Frequency range: 433 to 435MHz -112dBm ASK/-115dBm FSK sensitivity (typ. at 4kbit/s datarate) Very low supply current in power down mode (5nA typ.) Supply voltage range: 2.1 to 5.5V Fully integrated VCO, PLL synthesizer and loop filter with on-chip crystal oscillator tuning 5.5 x 6.5mm small VQFN-40 package

Bi-directional remote control systems Home automation Lighting control Security and alarm systems Industrial control Low bit-rate communication systems