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LCMXO640LUTSC-4T100C 数据表(PDF) 36 Page - Lattice Semiconductor |
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LCMXO640LUTSC-4T100C 数据表(HTML) 36 Page - Lattice Semiconductor |
36 / 95 page 3-10 DC and Switching Characteristics Lattice Semiconductor MachXO Family Data Sheet Table 3-2. BLVDS DC Conditions 1 Over Recommended Operating Conditions LVPECL The MachXO family supports the differential LVPECL standard through emulation. This output standard is emu- lated using complementary LVCMOS outputs in conjunction with a parallel resistor across the driver outputs on all the devices. The LVPECL input standard is supported by the LVDS differential input buffer on certain devices. The scheme shown in Figure 3-3 is one possible solution for point-to-point signals. Figure 3-3. Differential LVPECL Table 3-3. LVPECL DC Conditions 1 Over Recommended Operating Conditions Nominal Symbol Description Zo = 45 Zo = 90 Units ZOUT Output impedance 100 100 ohm RTLEFT Left end termination 45 90 ohm RTRIGHT Right end termination 45 90 ohm VOH Output high voltage 1.375 1.48 V VOL Output low voltage 1.125 1.02 V VOD Output differential voltage 0.25 0.46 V VCM Output common mode voltage 1.25 1.25 V IDC DC output current 11.2 10.2 mA 1. For input buffer, see LVDS table. Symbol Description Nominal Units ZOUT Output impedance 100 ohm RP Driver parallel resistor 150 ohm RT Receiver termination 100 ohm VOH Output high voltage 2.03 V VOL Output low voltage 1.27 V VOD Output differential voltage 0.76 V VCM Output common mode voltage 1.65 V ZBACK Back impedance 85.7 ohm IDC DC output current 12.7 mA 1. For input buffer, see LVDS table. Transmission line, Zo = 100 ohm differential 100 ohms 100 ohms 16mA 16mA 100 ohms Off-chip On-chip VCCIO = 3.3V VCCIO = 3.3V + - 150 ohms On-chip Off-chip |
类似零件编号 - LCMXO640LUTSC-4T100C |
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类似说明 - LCMXO640LUTSC-4T100C |
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