Digital Signal Processing Reference
In-Depth Information
Channel-to-channel: ±0.01% reading ±0.1% screen width
±(1 digital sample period, 2.5 or 5 ns) ±chan-to-chan skew
(2 ns typical, 3 ns maximum)
54641A/D, 54642A/D:
Same channel: ±0.005% reading ±0.1% screen width ±(1 digital
sample period, 1ns)
Channel-to-channel: ±0.005% reading ±0.1% screen width ±(1
digital sample period) ±chan-to-chan skew
Same Channel Example (54641A/D, 54642A/D)
:
for signal with
pulse width of 10
µ
s, scope set to 5
µ
s/div (50
µ
s screen width),
delta-t accuracy = ±{.005%(10
µ
s) + 0.1%(50
µ
s) + 1 ns} = 51.5 ns
• Delay jitter
<1 ppm
• RMS jitter
0.025% screen width + 30 ps
• Modes
Main, delayed, roll, XY
•XY
Bandwidth: max bandwidth
Phase error @ 1 MHz: 1.8 degrees
Z blanking: 1.4 V blanks trace (use external trigger) — 54621A/D,
54622A/D, 54624A only
D.2.6
Trigger System
•
Sources
54621A/622A, 54641A/642A: Ch 1, 2, line, ext
54621D/622D, 54641D/642D: Ch 1, 2, line, ext, D15 - D0
54624A: Ch 1, 2, 3, 4, line, ext
•
Modes
Auto, triggered (normal), single auto level (54621A/D, 54622A/D,
54624A only)
•
Hold off time
~60 ns to 10 seconds
•
Selections
Edge, pulse width, pattern, TV, duration, sequence, CAN, LIN, USB,
I
2
C, SPI
•
Edge
Trigger on a rising or falling edge of any source
