Atec Agilent-81180A User Manual
Page 16

16
Marker outputs
Characteristics
Description
Connector type
SMB
Number of markers
Two markers per channel
Type of output
Differential (+) and (-) outputs
Impedance
50 Ω, typical
Level control
Specified into 50 Ω, levels double into high impedance
Voltage window
0 V to 1.25 V, single-ended; 0 V to 2.5 V, differential
Low level
0 V to 0.8 V, single-ended; 0 V to 1.6 V, differential
High level
0.5 V to 1.25 V, single-ended; 1 V to 2.5 V, differential
Resolution
10 mV
Accuracy
10% of setting
Width control
0 SCLK periods to segment length
Position control
0 to segment length in 4 point increments
Marker resolution
4 SCLK periods (programmed as part of the output waveform)
Initial delay 1)
3.5 ns, +1 sample clock period, typical
Initial skew between marker
1 and marker 2
< 100 ps, typical
Variable delay control
Separate for each marker
Range
0 to 3 ns
Resolution
10 ps
Accuracy
± (10% of setting +20 ps)
Rise/fall time
1.0 ns, typical
SYNC output
Characteristics
Description
Connector type
SMA
Type of output
Single ended
Source
Channel 1 or channel 2
Waveform
Pulse (32 points width), WCOM (waveform duration pulse)
Impedance
50 Ω, typical
Amplitude
1.2 V, typical; doubles into high impedance
Variable position control
Range
0 to segment length
Resolution
32 points
Rise/fall time
2 ns, typical
Variable width control
Range
32 points to segment length
Resolution
32 points
¹
)
Analog output to marker output