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WFM 601A, WFM 601E & WFM 601M User Manual
A–1
Appendix A: Specifications
Table A–1 lists the Electrical specifications for the WFM 601A, WFM 601E, and
WFM 601M Serial Digital Component Waveform Monitors. Performance
Requirements are generally quantitative and can be tested by the Performance
Verification Procedure in the Service Manual. Reference information describes
useful operating parameters that have typical values. These parameters are not
directly checked in the Performance Verification Procedure. Table A–8 lists the
EMC compliance specifications.
The Performance Requirements listed in the electrical specification portion of
these specifications apply over an ambient temperature range of 0° C to +40° C.
The rated accuracies are valid when the instrument is calibrated at an ambient
temperature range of +20° C to +30° C, after a warm-up time of 20 minutes.
Table A–1: Electrical specifications
Characteristic Performance requirement Reference information
Waveform Vertical Deflection
Deflection Factor For digital input: 700 mV digital
input = 700 mV $2% screen
display, any magnifier setting.
RGB on-screen accuracy $3%.
Variable Gain Range 0.2X to 1.4X.
Frequency Response Luminance channel (Y), to
5.0 MHz $2%;
Color difference channels (P
B
and
P
R
) to 2.5 MHz $2%
Typically $1% to 5.75 MHz luminance (Y)
channel, and $1% to 2.75 MHz for the color
difference (P
B
and P
R
) channels.
Transient Response Preshoot v1%.
Overshoot v1%.
Ringing v1%.
Pulse-to-bar ratio 0.99:1 to 1.01:1
Field Rate Tilt v1%.
Line Rate Tilt v1%.
Offscreen Recovery 1% variation in baseline of a 5 MHz modulated
pulse when positioned anywhere on screen.
X1, X5, or X10 with any variable gain setting.
Voltage Cursor Accuracy $0.5% over 20–30° C, $1% over
rated temperature range.
Differentiated Step Filter Amplitude of pulses v1% variation.
Low Pass Filter
Gain 1 $ 1%.
Response v 3 dB attenuation at 1 MHz, w 40 dB attenua-
tion at 4 MHz.