MAXIM MAX2754 1.2GHz VCO with Linear Modulation Input handbook
Update: 30 September, 2023
MAX2754 is a self-contained, linear modulation, voltage-controlled oscillator (VCO) intended for use in the 2.4GHz to 2.5GHz ISM band, particularly for FSK modulation systems that utilize a direct frequency-modulation transmit architecture. In addition to the standard frequency tuning input, this device features a linear modulation input. The frequency tuning range of 1145MHz to 1250MHz (1/2 LO) also supports an IF up to 110MHz with low side LO. The VCO is based on Maxim's proprietary monolithic VCO technology, where all VCO components are integrated on-chip, including the varactor and inductor. The MAX2754 linear modulation input offers a means to directly FM modulate the VCO with a constant modulation sensitivity over the tuning voltage input range. Typical frequency deviation is -500kHz/V which is linear to ±4% over the guaranteed frequency limits. The tuning input voltage range is +0.4V to +2.4V and the oscillator frequency is factory adjusted to provide guaranteed limits. The oscillator signal is buffered by an output amplifier stage (internally matched to 50Ω) to provide higher output power and isolate the oscillator from load impedance variations. The MAX2754 operates over a +2.7V to +5.5V supply range. This device also provides a digitally controlled shutdown mode to permit implementation of sophisticated power-supply management. In shutdown, the supply current is reduced to 0.2µA. Even when active, power consumption is a modest 41mW.
Brand: MAXIM
File format: PDF
Size: 147 KB
MD5 Checksum: 9932F0C5BC9083D277961F72376E4A0E
Publication date: 07 May, 2012
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PDF Link: MAXIM MAX2754 1.2GHz VCO with Linear Modulation Input handbook PDF