Kaya Instruments Predator II CoaXPress, Руководство по аппаратным средствам и установке

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Page no. 14 | General Purpose Input Output
9.3.3 TTL Inputs/Outputs
Data In/Out
74LVCH1T45
Direction
IO
5V
10
k
Figure 8 – LVDS inputs/outputs schematics
DC Characteristics:
Parameter Conditions Min Typical Max Units
Low-level output current 50 mA
Low-level output voltage IO = 32 mA 0.55 V
High-level output current -50 mA
High-level output voltage IO = -32 mA 3.8 V
Low-level input voltage 1.5 V
High-level input voltage 3.5 V
Absolute maximum input
voltage -0.5 6.5 V
ESD protection HBM JESD22-A114F
Class 3A 4 kV
CDM JESD22-C101E 1 kV
Table 13 – TTL inputs/outputs DC characteristics
AC Characteristics:
Parameter Conditions Min Typical Max Units
Pulse width 50 ns
Pulse rate 0 5 MHz
Table 14 – TTL inputs/outputs AC characteristics
9.3.4 LTTL Inputs/Outputs
Data In/Out
74LVCH1T45
Direction
IO
3.3V
10
k
Figure 9 – LVDS inputs/outputs schematics
DC Characteristics:
Parameter Conditions Min Typical Max Units
Low-level output current 50 mA
Low-level output voltage IO = 24 mA 0.55 V
High-level output current -50 mA
High-level output voltage IO = -24 mA 2.4 V
Low-level input voltage 0.8 V
High-level input voltage 5 V
Absolute maximum input
voltage -0.5 6.5 V
ESD protection HBM JESD22-A114F
Class 3A 4 kV
CDM JESD22-C101E 1 kV
Table 15 – LTTL inputs/outputs DC characteristics