Data pattern (prbs pattern 215-1), Signal control features, Pulse and data features – Atec Tektronix-DTG5334 User Manual
Page 3: Data patterns, Sequencer features, Auxiliary channels, Clock out, Other output channels
Data Timing Generator — DTG5078 • DTG5274 • DTG5334
Data Pattern (PRBS pattern 2
15
-1)
Total Jitter –
DTG5078: at 750 Mb/s
<18 ps
RMS
, <85 ps
p-p
(typical) with DTGM21, 0.8 V
p-p
, delay: 0.0 ns).
DTG5274: at 2.7 Gb/s
<16 ps
RMS
, <60 ps
p-p
(typical) with DTGM30, 0.8 V
p-p
, delay: 0.0 ns).
<14 ps
RMS
, <60 ps
p-p
(typical) with DTGM31, 0.8 V
p-p
, delay: 0.0 ns).
DTG5334: at 3.35 Gb/s.
<15 ps
RMS
, 50 ps
p-p
(typical) with DTGM30, 0.8 V and DTGM31, 0.8 V
p-p
, delay:
0.0 ns); <13 ps
RMS
, 50 ps
p-p
(typical) with DTGM31, 0.8 V and DTGM31, 0.8 V
p-p
,
delay: 0.0 ns).
<44 ps
p-p
with DTGM30, Delay: 0.0 ns, Amplitude = 0.4 V
p-p
, Offset = 0.0 V, Data
Format = NRZ, Jitter Mode = Off, an ambient temperature of 20 to 30 °C.
Signal Control Features
Cross-point Adjustment (duty cycle distortion) –
Range: 30% to 70%.
Resolution: 1%.
(Slots A to D, and DTGM30/M31/M32 used in NRZ mode.)
Jitter Generation –
Jitter All or Partial Pattern.
Jitter Profile: Sine, Gaussian Noise, Square, Triangle.
Jitter Freq./Res.: 0.015 Hz to 1.56 MHz / 1 mHz.
Jitter Amplitude: Up to 16.5 UI
p-p
(depending on data rate and jitter frequency).
(Internal Jitter Generation available on Channel A1 only.)
Pulse and Data Features
Pulse Generator (PG) Features (unique to PG mode) –
Continuous or Burst.
Burst Count: 1 to 65,536.
Pulse Rate: Off, 1/1, 1/2, 1/4, 1/8, 1/16.
Data Patterns
Pattern Length per Channel (Pattern Memory) –
Minimum:
DTG5078: 1 bit (software mode) or 240 bits (hardware mode).
DTG5274/5334: 1 bit (software mode) or 960 bits (hardware mode).
Maximum:
DTG5078: 8,000,000 bits.
DTG5274: 32,000,000 bits (in multiples of four).
DTG5334: 64,000,000 bits (in multiples of four).
Built-in Data Patterns –
Binary Counter, Johnson Counter, Graycode Counter,
Walking Ones, Walking Zeros, Checker Board, User-defined Patterns.
Pattern Import Capability –
Type/Tools:
Tektronix TLA Data Exchange Format File (*.txt).
Tektronix HFS Vector File (ASCII) (*.vca).
Tektronix HFS Vector File (binary) (*.vcb).
Tektronix AWG2000 Series (*.wfm).
Tektronix AWG400s/500s/610/710/710B (*.pat).
Tektronix DG2000 Series (*.dat).
Medium/Pass:
Import data through GPIB, LAN, CD-ROM, floppy drive, USB memory devices.
Pattern Copy and Paste Capability –
Copy, paste, and rotation between data
listing/waveform editor and spreadsheet software (e.g. Excel) through the clipboard.
PRBS/PRWS Data Patterns –
(Note: Memory supports PRBS/PRWS patterns, and
user can create errored PRBS)
2
5
-1, 2
6
-1, 2
7
-1, 2
8
-1, 2
9
-1, 2
10
-1, 2
11
-1, 2
12
-1, 2
13
-1, 2
14
-1, 2
15
-1, 2
23
-1.
Sequencer Features
Sequence Length –
1 to 8,000 steps for main sequence.
1 to 256 steps for subsequence.
Max. Number of Blocks –
8,000.
Max. Number of Subsequences –
50.
Repeat Counter –
1 to 65,536 or infinite.
Channel Addition –
AND or XOR (slots A to D only).
Note: DTG5078 slots E, F, G, and H do not support the following: RZ, R1, pulse
generation modes which includes controls for trail delay/duty cycle/pulse width,
channel addition, and variable cross-points.
Auxiliary Channels
Clock Out
Connector –
Complementary output (common offset and ground).
DTG5078/5274: SMA rear panel.
DTG5334: SMA front panel.
Frequency Range –
DTG5078: 50 kHz to 750 MHz.
DTG5274: 50 kHz to 2.7 GHz.
DTG5334: : 50 kHz to 3.35 GHz, settable up to 3.4 GHz.
Frequency Resolution –
8 digit setting resolution
Minimum: 1 mHz (e.g. with 50 kHz setting).
Internal Clock Accuracy –
within ±1 ppm.
Jitter –
DTG5078: <2 ps
RMS
at 750 Mb/s, at 0.8 V
p-p
(typical).
DTG5274: <2 ps
RMS
at 2.7 Gb/s, at 0.8 V
p-p
(typical).
DTG5334: <2 ps
RMS
at 3.35 Gb/s, at 0.8 V
p-p
(typical).
Amplitude/Resolution –
0.03 V
p-p
to 1.25 V
p-p
/ 10 mV (50 Ω).
0.06 V
p-p
to 2.5 V
p-p
/ 10 mV (1 MΩ).
Output Voltage Window –
-2.0 to 2.47 V (50 Ω).
-2.0 to 7.00 V (1 MΩ).
Max. Output Current –
±80 mA.
Transition Times (20% - 80%) –
DTG5078:
<85 ps (Amplitude = 0.1 V
p-p
, Offset = 0 V) (typical).
<100 ps (Amplitude = 1.0 V
p-p
, Offset = 0 V) (typical).
DTG5274:
<70 ps (Amplitude = 0.1 V
p-p
, Offset = 0 V) (typical).
<80 ps (Amplitude = 1.0 V
p-p
, Offset = 0 V) (typical).
DTG5334:
<100 ps (Amplitude = 1.0 V
p-p
, Offset = 0 V) (typical).
Overshoot –
<10%, at High = 1.0 V, Low = 0 V into (50 Ω) (typical).
Other Output Channels
Auxiliary DC Outputs –
-3.0 to 5.0 V / 10 mV, Max. current: ±30 mA, 8 independently
controlled outputs, Connector: 2 × 8 pin header on front panel.
Sync Out –
CML (current mode logic), VOH: 0 V , VOL: -0.4 V (50 Ω) (typical), SMA
Connector, SE, Front panel, Rise/Fall Time (20 to 80%): 140 ps, Delay to Data Out:
-4.5 ns (typical).
10 MHz Reference Out –
1.2 V
p-p
(50 Ω, AC coupled) (typical), 2.4 V
p-p
(1 MΩ, AC
coupled) (typical), BNC Connector, Rear Panel.
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