Product description
nRF905 Nordic Norwegian company introduced a single-chip RF transmitter chip,
32-pin 5mm × 5mmQFN package and 433,868,915 MHz 3 ISM (industrial, scientific and medical) channels, including 433 domestic bands free of charge. nRF905 by the frequency synthesizer, receiver demodulator, power amplifier, crystal oscillator, modulator, and other functional components, the need for external SAW filter can also have good communication results. nRF905 using the SPI interface to communicate with any MCU, including address, output power and communication channels can be configured through the process, it can be used for multi-machine communication. nRF905 combines ShockBurstTM technology that can automatically handle packet prefix, and the built-in CRC check function to ensure reliable data transmission. nRF905 low power consumption, the power of-10dBm at the launch, the operating current is only 11mA; and the corresponding receiver operating current of only 12.5 mA, the chip can be set to idle mode software, shutdown mode, easy energy-saving design. For industrial data acquisition, wireless alarm and security systems and many other recipients.
Product features
(1) 433Mhz open license-free ISM band used;
(2) The maximum operating rate of 50kbps, communication distance of up to 300 meters;
(3) efficient GFSK modulation, anti-interference ability, particularly suitable for industrial control applications;
(4) The operating frequency can be software configured to meet the multi-point communications and frequency-hopping communication needs;
(5) Built-in hardware, 8, 16-bit CRC error detection and control multipoint communication address;
(6) low-power 1.9 – 3.6V, standby mode, the state only 2.5uA;
(7) transceiver mode switching time of only 650us
(8) SPI programming interface software to set the address, the address up to 2 ^ 32
(9) integrated address match, Carrier Sense, send and receive completion status indicator
(10) TX Mode: +10 dBm in the case, the current of 30mA; RX Mode: 12.2mA
(11) Standard 2.54mmDIP pitch interfaces for embedded applications
