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Dp4301-sub-1g highly integrated wireless transceiver chip

2022-07-29 08:06:00 【weng13924672287】

The company's new DP4301 Is a Monolithic integrated transceiver with high performance and low power consumption , The working frequency can cover 470MHz~510MHz, And compatible with ISM 433MHz Frequency band . The chip integrates RF receiver 、 RF transmitter 、 Frequency synthesizer 、GFSK Modulator 、GFSK Demodulator and other functional modules . adopt SPI The interface can control the output power 、 Flexible configuration of channel selection and packet format , And built in CRC、FEC、 Automatic response and automatic retransmission mechanism , It can greatly simplify system design and optimize performance .

The chip is Time division duplex transceiver （TDD）, Receiving and sending data packets need to be carried out alternately in different periods .

Internal to the chip High precision local oscillator LO from sigma-delta Fractional-N Frequency synthesizer implementation , It can be used for receiving and transmitting at the same time .

High efficiency inside the chip class E power amplifier （PA）, stay +20dBm Under the condition of output power , About consumption 100mA Current .PA The output power can be in -5dBm to +20dBm Configure in scope , Configuration accuracy is about 1dB.

Chip support TX/RX Switch control and antenna diversity switch control to expand link range and improve performance . Low power consumption is integrated inside the chip 32KHz oscillator , The Automatic wake-up function can be realized to reduce the power consumption of the overall scheme .

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