Described as a low-power I/Q modulator, the LTC5589 enables battery-powered, high performance broadband transmitters operating in the range from 700 MHz to 6 GHz. Powered by a single 2.7V to 3.6V supply, the device draws 29.5 mA and exhibits a sideband-suppression performance of -50 dBc and a carrier leakage of -43 dBm typical without calibration. Sideband and carrier suppression can be further improved by using the on-chip tuning capabilities via the SPI bus, to better than -60 dBc and -60 dBm, respectively. Moreover, the device has an output noise floor of -158.8 dBm/Hz, combined with OIP3 of 19 dBm. Its baseband bandwidth extends to 92 MHz with ±1 dB gain flatness, providing 184 MHz RF bandwidth at 1.8 GHz. The LTC5589 is available in a 4 mm x 4 mm plastic QFN package with an operating temperature range from -40°C to +105°C case. Pricing starts at $4.45 each/1,000. For more information, visit http://www.linear.com/product/LTC5589
Linear Technology Corp.