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6.7.07 Analog Outputs
CH n
[n
]
DAC analog output control
1
2
Defines what outputs appear on the DAC1, DAC2, DAC3 and DAC4 connectors on
the rear panel.
n
Signal (DAC1)
2
0
X % (2.5 V FS)
1
Noise % (2.5 V FS)
2
Ratio: (10 × X%/ADC 1)
3
Log Ratio: log
4
Equation 1
5
Equation 2
6
User DAC1
7
Main signal channel ADC output (digital signal monitor 1)
8
Magnitude2 % (2.5 V FS) (dual mode only)
n
Signal (DAC2)
2
0
Y % (2.5 V FS)
1
Noise % (2.5 V FS)
2
Ratio: (10 × X%/ADC 1)
3
Log Ratio: log
4
Equation 1
5
Equation 2
6
User DAC2
7
Ext ADC1 monitor
8
Phase2 : +9 V = +180°, -9 V = -180° (dual mode only)
n
Signal (DAC3)
2
0
Magnitude % (2.5 V FS)
1
Noise % (2.5 V FS)
2
Ratio: (10 × X%/ADC 1)
3
Log Ratio: log
4
Equation 1
5
Equation 2
6
User DAC3
7
Input to second demodulator (digital signal monitor 2)
8
X2 % (2.5 V FS) (dual mode only)
n
Signal (DAC4)
2
0
Phase: +9 V = +180°, -9 V = -180°
1
Noise % (2.5 V FS)
2
Ratio: (10 × X%/ADC 1)
3
Log Ratio: log
4
Equation 1
5
Equation 2
6
User DAC4
7
Synchronous oscillator
8
Y2 % (2.5 V FS) (dual mode only)
n
is compulsory and is 1 for DAC1, 2 for DAC2, 3 for DAC3, or 4 for DAC4
1
NOTE: n
= 1 is only permitted if the noise measurement mode is on
2
(NOISEMODE 1) or if the present settings of output filter slope and time constant
are within the permitted range and the synchronous time constant control is off.
(10 X%/ADC1)
10
(10 X%/ADC1)
10
(10 X%/ADC1)
10
(10 X%/ADC1)
10
Chapter 6, COMPUTER OPERATION
6-23
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