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Samples in periodicals archive:
The architecture also avoids image rejection issues and unwanted mixing by adding an amplification stage to maintain the full-scale input to the A/D converter.
An optional five-stage lowpass or bandpass input filter can be specified with several available frequency and attenuation characteristics for RF image rejection and harmonic suppression.
5 degrees provide excellent image rejection for wideband zero IF and I/Q sampling applications.
com)-- OculusAI, a provider of image rejection services for online dating and social networking websites, is being recognized as part of the next generation of businesses in Sweden on the cutting edge.
The highly sensitive devices (typical -109dBm, 10kBps Manchester data rate, FSK modulation with +/-10kHz frequency deviation, IF bandwidth 165kHz) provide a high image rejection and excellent blocking performance (typical 64dBc at 1MHz, IF bandwidth of 165kHz) for the customer application.
The calibration routine is continuously performed between transmit and receive data frames, totally independent from the baseband and media access control (MAC) processor, to optimize the image rejection and LO leakage performance characteristics.
Other features integrated on-chip include an extremely low-power, 8-bit RISC communications processor; patent-pending, fully-integrated image rejection scheme; VCO (voltage controlled oscillator); Fractional-N PLL (phase locked loop); 10-bit ADC (analog-to-digital converter); digital RSSI (received signal strength indication); temperature sensors; AFC (automatic frequency control) loop; and battery voltage monitor.
It features a fully integrated IF section with built-in image rejection.