MAX41464GUB+

MAX41464GUB+ is a 300MHz to 960MHz (G)FSK transmitter with an I²C interface. It integrates a fractional phase-locked-loop (PLL) so that a single, low-cost crystal can be used to generate commonly used worldwide sub-GHz frequencies. The fast response time of the PLL allows for frequency-hopping spread spectrum protocols for increased range and security. The chip also features preset modes with pin-selectable frequencies so that only one wire is required for an external microcontroller interface. The only frequency-dependent components required are for the external antenna-matching network. A buffered clock-out signal at 800KHz is also provided. It is used in applications such as building automation and security, wireless sensors and alarms, remote and passive keyless entry (RKE/PKE), tire pressure monitoring systems (TPMS), automatic meter reading (AMR), garage door openers (GDO), radio control toys, internet of things (IoT).

• Bits-to-RF single wire operation, low bill-of-materials (BOM)
• Supply voltage range from 1.8V to 3.6V (PA-BOOST = 0)
• Operating current is 15mA typical at (fRF = 315MHz, VDD = +3V, TA = +25°C)
• Standby current is 200μA typical at (TA = 25°C)
• Shutdown current is 50nA typical at (TA = 25°C)
• FSK frequency deviation is ±39KHz typical at (VDD = +3V, TA = +25°C)
• Output power is 13dBm typical at (fRF = 300MHz to 450MHz)
• Loop bandwidth is 300KHz typical at (VDD = +3V, TA = +25°C)
• Crystal frequency is 16MHz typical at (VDD = +3V, TA = +25°C)
• Operating temperature range from -40°C to +105°C, TSSOP-10 package

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