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Partname:MAX7030MATJ-T
Description:Low-Cost, 315MHz, 345MHz, and 433.92MHz ASK Transceiver with Fractional-N PLL
Manufacturer:Maxim Integrated Products
Datasheet:PDF (735K).
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The MAX7030 transmit frequency is generated by a 16bit, fractional-N, phase-locked loop (PLL), while the receiver's local oscillator (LO) is generated by an integer-N PLL. This hybrid architecture eliminates the need for separate transmit and receive crystal reference oscillators because the fractional-N PLL is preset to be 10.7MHz above the receive LO. Retaining the fixed-N PLL for the receiver avoids the higher current-drain requirements of a fractional-N PLL and keeps the receiver current drain as low as possible. All frequencygeneration components are integrated on-chip, and only a crystal, a 10.7MHz IF filter, and a few discrete components are required to implement a complete antenna/digital data solution. The MAX7030 is available in a small, 5mm x 5mm, 32pin thin QFN package, and is specified to operate over the automotive -40C to +125C temperature range.

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