Product Summary

The DK434M is a low-cost sub- 1 GHz transceiver designed for very low-power wireless applications. The circuit is mainly intended for the ISM (Industrial, Scientific and Medical) and SRD (Short Range Device) frequency bands at 315, 433, 868, and 915 MHz, but can easily be programmed for operation at other frequencies in the 300-348 MHz, 387-464 MHz and 779-928 MHz bands. It is ideal for: (1)Ultra low-power wireless applications; (2)Wireless alarm and security systems; (3)Industrial monitoring and control; (4)Wireless sensor networks; (5)AMR – Automatic Meter Reading; (6)Home and building automation.



Parametrics

DK434M absolute maximum ratings: (1)Supply voltage: –0.3 to 3.9 V; (2)Voltage on any digital pin: –0.3 to VDD + 0.3 V; (3)Voltage on the pins RF_P, RF_N, and DCOUPL–0.3 to 2.0 V; (4)Voltage ramp-up rate: 120 kV/µs; (5)Input RF level: +10 dBm; (6)Storage temperature range: –50 to 150 °C; (7)Solder reflow temperature: 260 °C; (8)ESD: 750 V; (9)Human Body Model (HBM)ESD: 400 V.

Features

DK434M features: (1)High sensitivity (–111 dBm at 1.2 kBaud, 868 MHz, 1% packet error rate); (2)Low current consumption (14.7 mA in RX, 1.2 kBaud, 868 MHz); (3)Programmable output power up to +10 dBm for all supported frequencies; (4)Excellent receiver selectivity and blocking performance; (5)Programmable data rate from 1.2 to 500 kBaud; (6)Frequency bands: 300-348 MHz, 387-464 MHz and 779-928 MHz.

Diagrams

DK434M pin connection