The SRL-LLC Wideband Digital Down Converter (DDC) digitally converts the input signal at IF frequency down to baseband by multiplying input samples with sine/cosine waves generated by numerical controlled oscillators (NCO). Down converted samples are then decimated by a factor ranging from 2 to 2048 with multiplying step of 2. A CIC and 4 stages of half band filters are integrated within the decimator. The core accepts a real signal at input and provides complex I/Q baseband data at the output. The parallel architecture of the core allows for an input throughput up to 2.4 Gsps, data symbol rate up to 540 Msymb/s, making it a perfect fit for ultra high throughput applications such as wideband DVB-S2X communication.
High input throughput of up to 2.4 Gsps Supported signal bandwidth of up to 600 MHz Tunable IF frequency from 10 to 700 MHz with a precision of at least 2 Hz Spurious-free dynamic range (SFDR) of at least 83 dB, filter’s passband ripple less than 0.05 dB