Agilent Technologies N9010A - Manual (Page 154)

154 Chapter 15
Option YAS - Y-Axis Screen Video Output
Other Y-Axis Screen Video Output Specifications
Amplitude Range
Minimum
Maximum
Overrange
Bottom of screen
Top of Screen + Overrange
Range of represented signals
Smaller of 2 dB or 1 division,
(nominal)
Output Scaling
a
0 to 1.0 V open circuit,
representing bottom to top of
screen respectively
Offset
±1% of full scale (nominal)
Gain accuracy
±1% of output voltage (nominal)
Delay
RF Input to Analog Out
Without Option B40, DP2, or
MPB 1.67
μs + 2.56/RBW + 0.159/VBW
(nominal)
With Option B40, DP2, or MPB 71.7
μs + 2.56/RBW + 0.159/VBW
(nominal)
a. The errors in the output can be described as offset and gain errors. An offset error is a constant error,
expressed as a fraction of the full-scale output voltage. The gain error is proportional to the output volt-
age. Here’s an example. The reference level is
−10 dBm, the scale is log, and the scale is 5 dB/division.
Therefore, the top of the display is
−10 dBm, and the bottom is −60 dBm. Ideally, a −60 dBm signal
gives 0 V at the output, and
−10 dBm at the input gives 1 V at the output. The maximum error with a
−60 dBm input signal is the offset error, ±1% of full scale, or ±10 mV; the gain accuracy does not apply
because the output is nominally at 0 V. If the input signal is
−20 dBm, the nominal output is 0.8 V. In
this case, there is an offset error (
±10 mV) plus a gain error (±1% of 0.8 V, or ±8 mV), for a total error
of
±18 mV.
Description Specifications Supplemental Information