4DSP FMC12x ADC FMC Daughter Card

The Abaco Systems / 4DSP FMC12x Series 4-Channel 1.25Gsps ADC FMC Daughter Cards provide four 8-bit (FMC125) or 10-bit (FMC126) ADC channels that enable simultaneous sampling of four, two, or one channel at a maximum sample rate of 1.25Gsps, 2.5Gsps, or 5Gsps respectively. The FMC122 is a low pin count variant supporting 2 channels at 1.25Gsps or 1 channel at 2.5Gsps maximum sample rate.

The sample clock can be supplied externally through a coax connection or supplied by an internal clock source. The clock tree enables cascading of multiple boards for phase-locked sampling. Additionally, a trigger input for customized sampling control is factory optional.

The FMC12x Series Daughter Cards are mechanically and electrically compliant to FMC standard (ANSI/VITA 57.1). The card has a high-pin count connector, front panel I/O, and can be used in a conduction-cooled environment.

The design is based on E2V's 8-bit EV8AQ160 (FMC122/FMC125) or 10-bit EV10AQ190 (FMC126) Quad 1.25Gsps ADC with DDR LVDS outputs. The analog signal inputs are available on the front panel on coax connections and have individual calibration circuits for fine-tuning of gain, offset, and phase.

The FMC12x Series allows flexible control on clock source, sampling frequency, and calibration through serial I2C communication. Furthermore, the card is equipped with power supply and temperature monitoring and offers several power-down modes to switch off unused functions or protect the card from overheating.