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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

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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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