ADMV1014 Datasheet | Analog Devices

FEATURES Wideband RF input frequency range: 24 GHz to 44 GHz 2 downconversion modes Direct conversion from RF to baseband I/Q Image rejecting downconversion to plex IF LO input frequency range: 5.4 GHz to 10.25 GHz LO quadrupler for up to 41 GHz Matched 50 Ω, single-ended RF input, and plex IF outputs Option between matched 100 Ω balanced or 50 Ω singleended LO inputs 100 Ω balanced baseband I/Q output impedance with adjustable output mon-mode voltage level Image rejection optimization Square law power detector for setting mixer input power Variable attenuator for receiver power control Programmable via a 4-wire SPI interface 32-terminal, 5 mm × 5 mm LGA package APPLICATIONS Point to point microwave radios Radar, electronic warfare systems Instrumentation, automatic test equipment (ATE) FUNCTIONAL BLOCK DIAGRAM SDI SCLK DVDD VCC_MIXER GND LO_P LO_N GND I_P ×4 I_N IF_I GND 90° 0° IF_Q Q_N Q_P VCC_QUAD BG_RBIAS RST VCC_BG VCC_LNA_1P5 GND RF_IN GND GENERAL DESCRIPTION The ADMV1014 is a silicon germanium (Si Ge), wideband, microwave downconverter optimized for point to point microwave radio designs operating in the 24 GHz to 44 GHz frequency range. The downconverter offers two modes of frequency translation. The device is capable of direct quadrature demodulation to baseband inphase (I)/quadrature (Q) output signals, as well as image rejection downconversion to a plex intermediate frequency (IF) output carrier frequency. The baseband outputs can be dc-coupled, or, more typically, the I/Q outputs are ac-coupled with a sufficiently low high-pass corner frequency to ensure adequate demodulation accuracy. The serial port interface (SPI) allows fine adjustment of the quadrature phase to allow the user to optimize I/Q demodulation performance. Alternatively, the baseband I/Q outputs can be disabled, and the I/Q signals can be passed through an on-chip active balun to Figure 1. provide two single-ended plex IF outputs anywhere between 800 MHz and...