Adaptec 1394 Podręcznik Użytkownika Pobierz pdf (Strona 66)

66 Specifications Appendix A

CLK 10

External Trigger Input

External Trigger Output

Clk In

Input TTL

Frequency Stability 100 ppm

Duty Cycle 50% ± 5%

Clk Out

Output TTL

Frequency Stability 100 ppm

Duty Cycle 50% ± 5%

Connector SMB (on faceplate)

Levels TTL, CMOS, ECL, 0 to +33V

Programmable Threshold

Range

0 to +30V

Programmable Threshold

Accuracy

± 0.4V

Threshold Sensitivity

(hysteresis)

0.5 Vpp maximum

0.1 Vpp minimum

Input Load 50 pf, 55 kohms

Maximum Rate 2 MHz

Minimum Pulse Width 200 ns

Connector SMB (on faceplate)

Levels nominal pull up to + 5V

Maximum External Pull Up + 30V

Sink Current 10 mA @ V

ol

< 0.4V or

150 mA @ V

ol

< 1.0V

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