Atec TektronixCSA7404 - Manual (Page 8)

Digital Phosphor Oscilloscopes • www.tektronix.com/csa7000 8
Communication Signal Analyzers
CSA7000 Series
Trigger Modes
Edge – Positive or negative slope on any channel or
front panel auxiliary input. Coupling includes DC, AC,
noise reject, HF reject and LF reject.
Comm – Support for AMI, HDB3, BnZS, CMI, MLT3
and NRZ encoded communications signals.
AMI encoding: Standards include DS1, DS1A, DS1C,
DS3, E1, E2, E3, STS-1 or a custom bit rate. Select
between positive or negative isolated one, zero pulse
form or eye patterns.
HDB3 encoding: Standards include E1, E2, E3, DS1A
or custom bit rate. Select between positive or nega-
tive isolated one pulse or eye pattern.
BnZS encoding: Standards include DS1, DS1C, DS2,
DS3, STS-1 or custom bit rate. Select between
positive or negative isolated one pulse or eye pattern.
CMI encoding: Standards include STS-3, STM1E,
DS4NA, E4 or a custom bit rate. Select between
positive or negative one pulse, zero pulse or
eye pattern.
MLT3 encoding: Standards include 100 Base-TX.
NRZ encoding: Standards include OC1/STM0,
OC3/STM1, OC12/STM4, OC48/STM16, GB
Ethernet, FC133, FC266, FC531, FC1063, FC2125,
Infiniband 2.5, G1 ATA, FS USB, HS USB, IEEE
1394b S400b, S800b, S1600b, OC-48 FEC, 1000
BASE CX, Rapid I/O, SFI-5, SPI-5, VSR, PCJ-Express,
TFI-5; eye patterns only. CSA7154 limited to standards
≤
1.25 Gbps.
Serial Pattern – 32-Bit serial word recognizer,
bits specified in binary (high, low, don’t care) or
hex format. Trigger on NRZ-encoded data up to
1.25 Gbaud.
Glitch – Trigger on or reject glitches of positive,
negative, or either polarity. Minimum glitch width is
1.0 ns with 200 ps resolution.
Width – Trigger on width of positive or negative
pulse either within or out of selectable time limits
(1 ns to 1 s).
Runt – Trigger on a pulse that crosses one thresh-
old but fails to cross a second threshold before
crossing the first again. Optional time qualification.
A c q u i s i t i o n M o d e s
CSA7154 CSA7404
FastAcq Acquisition FastAcq optimizes the instrument for analysis of dynamic signals
and capture of infrequent events
Maximum FastAcq Waveform Capture Rate >400,000 wfms/sec
Sample Acquire sampled values
Waveform Database (WfmDB) Accumulate waveform database providing three-dimensional array
of amplitude, time and counts
Peak Detect Captures narrow glitches at all real-time sampling rates
Minimum Peak Detect Pulse Width 400 ps
Average From 2 to 10,000 waveforms included in average
Envelope From 2 to 2x10 9 waveforms included in min-max envelope
Hi-Res Real-time boxcar averaging reduces random noise and increases resolution
FastFrame Acquisition Acquisition memory divided into segments; maximum trigger rate >150,000 waveforms
per second. Time of arrival recorded with each event
Tr i g g e r S y s t e m
CSA7154 CSA7404
Sensitivity
Internal DC Coupled, Main Trigger 0.35 div from DC to 50 MHz, 0.35 div from DC to 50 MHz,
≤ 1 div at 1.5 GHz ≤ 1.5 div at 3 GHz
External (Auxiliary Input) 250 mV from DC to 50 MHz increasing to 350 mV at 500 MHz
Main Trigger Modes Auto, Normal and Single
Trigger Sequences Main, Delayed by Time, Delayed by Events. All sequences can include separate horizontal
delay after the trigger event to position the acquisition window in time
Trigger Level Range
Internal ±12 divisions from center of screen
External (Auxiliary Input) +8 V
Line fixed at 0 V
Trigger Coupling DC, AC (attenuate <60 Hz), HF Rej (attenuate >30 kHz),
LF Rej (attenuates <80 kHz), Noise Reject (reduce sensitivity)
Trigger Holdoff Modes Random, Automatic or User-specified Time
Trigger Holdoff Range 250 ns minimum to 12 seconds maximum