NB4N840MMNEVB ON Semiconductor

NB4N840MMNEVB Evaluation Board User s Manual for NB4N840M NB4N840MMNEVB Board Features Power Supply Fully assembled evaluation board Accommodates the electrical characterization of the +3.3 V NB4N840M in the QFN32 package + Equal length input and output data lines to minimize skew V GND Selectable jumpers CC Single + 3.3 V supply This Evaluation Board Manual Contains +3.3 V Information on the NB4N840M Evaluation Board Figure 2. Power Supply Connections Appropriate Lab Setup Details Evaluation Board Layout Step 3: Input Connections Bill of Materials DAn and DBn require CML drive levels and provide internal 50 to V termination resistors to eliminate CC Setup for Measurements external components and minimize reflections. Ensure that the CML devices driving these inputs are not redundantly Step 1: Basic Equipment terminated. Signal Generator Oscilloscope Table 2. Input Connectors Power Supply Inputs Board Connector Voltmeter DA0 J13 Matched HighSpeed Cables with SMA Connectors DA0 J14 Step 2: Power Supply Connections DA1 J15 + 3.3 V must be provided to the board for V . CC DA1 J16 Table 1. Power Supply Connections DB0 J3 Supply Value Connector DB0 J4 V + 3.3 V J21 CC DB1 J1 GND 0 V J22 DB1 J2 Step 4: Control and Select Pins Jumpers JP1, JP2, JP5, and JP6 select the input signals for channel A and B outputs. Jumpers JP3, JP4, JP7, and JP8 enable the output drivers for channel A and B (refer to Table 3 for output routing). Table 3. Output Routing ROUTING CONTROLS OUTPUT CONTROLS OUTPUT SIGNALS SELA0 / SELB0 SELA1 / SELB1 ENA0 / ENA1 ENB0 / ENB1 Signal at Signal at QA0 / QB0 QA1 / QB1 JP6 / JP2 JP5 / JP1 JP7 / JP8 JP3 / JP4 L L H H DA0 / DB0 DA0 / DB0 L H H H DA0 / DB0 DA1 / DB1 H L H H DA1 / DB1 DA0 / DB0 H H H H DA1 / DB1 DA1 / DB1 X X L L Power Down Power Down