Differential inputs to the precision 24-bit ADC.Ĥ precision DAC outputs. It delivers up to 150 mA (Care must be taken with the voltage drop in track resistance at large currents).Ĥ precision ADC inputs. This reference acts as a ratiometric tracking with the reference used for all the data converters (RF ADC, RF DAC, precision ADC, precision DAC). These I/Os have 22 Ω series protection resistors. They can be configured as inputs or outputs, open-drain or pull-up. Two LVDS clocks from the clocking subsystem EXP_CLK0 and EXP_CLK1.Ĥ user IOs from the GPIO expander USER_IOx. Warning: These pins are connected directly to the Zynq SoC and must be driven from VCCIO_3V3 VCCIO_1V8, both for voltage compliance and power sequencing.Īpplying non compliant voltages on these pins may result in SoC failure. ALPHA250 voltage level is 3.3 V ALPHA250-4 voltage level is 1.8 V 3.3 V up to 500 mA.ġ6 single ended or 8 differential I/Os EXP_IOx. + 3.3 V up to 800 mA, sequenced with I/Os supply. 5 V up to 1 A (shared with USB 2.0 connector). ALPHA250 ALPHA250-4 ALPHA250 expansion connector ALPHA250-4 expansion connector
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