New Sub-1GHz FSK Receiver ICs

The BC2502A and BC2502B have an operating voltage range of 2.4V~5.5V. The BC2502A operates in the 315/433MHz bands and the BC2502B operates in the Sub-1GHz license-free ISM bands. The devices have a low receiving current of 4.5mA in the 433MHz frequency band, a high receiving sensitivity of up to -109dBm at a 25ksps data rate and a maximum transmission rate of 50ksps. The RF characteristics of the devices are also compliant with ETSI/FCC specifications. The devices are especially suitable for use in wireless receiver products such as metal rolling doors, ceiling lamps, wireless switches, drying racks, wireless doorbells, integrated ceiling fans and other products.

The devices both include an I²C interface which is used to set the receiving frequency and other parameters. Additional advantages include their high anti-interference characteristics which can reduce the effects of interference from power and environmental noise. Holtek has an RF team which can provide technical support to customers to accelerate their move to mass production. The devices are supplied in a small 10-pin SOP-EP package type and meet with the industrial specification operating temperature of -40°C~85°C.