Front Panel - Keysight M8121A User Manual

Front Panel

Flow Ctrl 1
ODI 1
Fail Access
Keysight M8121A Arbitrary Waveform Generator User Guide
Figure 3
Sample Mrk Direct Out 1 Direct Out 1
Out 1
Sys Clk Sys Clk Sample Clk Sample Clk
Out In In Out
+8 dBm MAX
Figure 3
The M8121A front panel includes the following input/output ports:
Inputs/Outputs
• Flow Ctrl - This port is reserved for future use.
• Sample Mrk Out - The two Sample Marker Out ports (Sample Mrk
Out 1/2) can be used to mark the beginning of a certain position in the
analog signal. It has timing resolution of one sample clock cycle. The
Marker signal can be used to trigger external equipment.
• Direct Out - The two Direct Out ports (Direct Out 1/2) are the
differential outputs of the two digital to analog converters. The outputs
can be switched ON or OFF.
• Amp Out - The two Amplifier Out ports (Amp Out 1/2) are the amplified
output signals of the DAC. Amp Out is available if option -AMP is
installed. Option -AMP is SW upgradeable.
• LPN Clk Out - The LPN (Low Phase Noise) Clock Output can be used to
output the clock signal from the LPN clock input. For convenience, a
semi-rigid cable that connects between LPN Clk Out and Sample Clk In
is provided to allow users to programmatically switch between LPN
clock and Sample Clk In without re-cabling. The LPN ports are only
available if option -LPN is installed. Option -LPN is SW upgradeable.
• ODI - The two Optical Data Interface ports (ODI 1/2) can be used to
connect to other ODI ports that provide streaming waveform data.
• Sys Clk Out - This port is reserved for the future use.
• Sys Clk In - This port is reserved for the future use.
• Sample Clk In - The Sample Clock Input can be used if an external
clock source shall be used to clock the analog to digital to converters.
Clock to data delay control is available when using Sample Clk In.
on page 17 illustrates the front panel of the M8121A instrument.
LPN Clk Out
Amp Out 1 Amp Out 1 Flow Ctrl 2
Ref Clk Ref Clk Vector Mrk Vector Mrk
Out In Out 1 Out 2
3 Vpp MAX -1.5 V... 4 V MAX -1.5 V... 4 V MAX
M8121A front panel
Sample Mrk Direct Out 2 Direct Out 2 Amp Out 2
Out 2
Vector Clk Trigger Aux
Out In In
±10 V MAX ±10 V MAX
Introduction 1
Amp Out 2 M8121A 12 GSa/s
Arbitrary Waveform Generator
ODI 2
Sync LPN Clk
In In
+10 dBm MAX
±4 V MAX
17