Chapter 7 119
Technical Characteristics
Trigger In*
• Trigger impedance: 4k ohms
• Trigger level:LVTTL
*Trigger In has additional latency.
LXI Trigger Bus
• All physical and electrical characteristics conform to LXI Standard Revision
1.1.
External markers
Markers can be defined for each waveform segment.
Front Panel
Markers 1/2/3/4
• Number of outputs: 4 SMB female front-panel connectors
• Marker polarity: Negative, positive
• Output type: 3.3V CMOS with 30 ohm series termination
• Marker low level: 100 mV nominal (high impedance load)
• Marker high level: 3.2V nominal (high impedance load)
• Marker timing resolution: Clock/8 (6.4 ns at full rate)
• Marker delay: resolution of 1 sample clock
• Marker width: resolution of 1 SYNC clock
Trigger Out*
• Output type:5V TTL with 50 ohm termination
• Marker low level: 100 mV nominal (high impedance load)
• Marker high level: 4.9V nominal (high impedance load)
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