Pattern Generator BPG 12G-TER

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Key Features

Wideband pattern generator for bipolar return-to-zero pulses at data rates up to 6 Ghz

32 Megabit memory for programmable user pattern

Variable pattern length

Ternary output signal with adjustable amplitude

Complementary outputs

Latest technology using SiGe, InP and GaAs integrated circuits and ECL-ASICs

Compact desktop design with very low power consumption

Operation only via USB-port

Brief Description

The wideband tuneable pattern generator provides a programmable ternary data signal consisting of positive and negative pulses and zeros. For the operation of the generator an external reference clock signal is required. It provides the time base for data rates between 50 Mhz and 6 Ghz.

The length of the user pattern is configurable from 16 digit up to 16,777,216 digit and is repeated periodically. Each digit can be set to a positive or negative pulse or to zero.

Additionally the pattern memory can be split in 2 or 4 parts to toggle synchronously between different waveforms. The amplitude of the ternary output signal is variable between 1 V_pp and 2 V_pp.

At the front panel several trigger signals, e.g. a divided clock signal and the word frame trigger are available.

All settings and patterns can be changed via an easy-to-use graphical user interface on your PC.

Optionally the data outputs can be switched over from RZ-code (Return-to-Zero) to NRZ-code (Non-Return-to-Zero).

Output Signals

Output Signals Pattern Generator: Pulse Pattern
Pulse pattern at 6 Ghz data rate (Amplitude 2 V_pp, 500 ps/div, 1 V/div)

Output Signals Pattern Generator: Eye Diagram
Eye diagram of the ternary output signal at 6 Ghz data rate,
amplitude adjusted to 2 V_pp (50 ps/div, 1 V/div)

Technical Specifications

BPG 12G-TER
Clock Rate	100 Mhz ... 12 Ghz, continous (data rate = Clock/2)
Clock Input	U_i = 0.5 .. 1 V_pp, R_i = 50 Ohm 50 Ohm SMA, \|r\| < 0.2 6 digit frequency indicator (GUI)
Data Outputs	Complementary outputs for bipolar Return-to-Zero signals, Amplitude: -U / 0 / +U with DC-offset voltage -U U = 0.5 ... 1.0 V +/-10% into 50 Ohm, step size 1 mV Rise/Falltime < 50 ps (20/80%) Jitter (pp) < 10 ps SMA-connectors 50 Ohm
Pattern	All patterns are programmable by Interface. The programmed patterns should have nearly the same number of positive and negative pulses. Pulse pattern 16 digit ternary coded, Pulse pattern 32 digit ternary coded, Pulse pattern 32 * m digit (m = 3, 4 ... 2¹⁹) (= max. 16,777,216 digit ternary coded) Pulse pattern consisting of four parts with the length of 32 * m digit (m = 3, 4 ... 2¹⁸). Pulse pattern consisting of four parts with the length of 32 * m digit (m = 3, 4 ... 2¹⁷).
Clock Outputs	Clock/2, 0.5 V_pp +/- 0.1 V, DC-coupled, 50 Ohm SMA Clock to data skew < 20ps Clock/64, 0.5 V_pp +/- 0.2 V, AC-coupled, 50 Ohm SMA
Trigger Output	CML: 0V/-0.4V, 50 Ohm SMA Clock/8 Word Frame Trigger
Interface	USB, Data transmission up to 1 MByte/s Operation only via USB-Port
Dimensions	19" Desktop, W x H x D = 462 x 90 x 360 mm
Weight	approx. 6 kg
Power Supply	115V/230V/50Hz-60Hz/25VA
Option	DC-coupled output amplifier

User Interface

All device settings as well as the programming of the ternary pattern can be done simply by mouse click.

Ordering Information

Included in delivery:

BPG 12G-TER
115/230 V mains, user manual, USB cable set,
CD-ROM with device driver and operating software

The instrument is produced by SYMPULS in Germany.
We offer a reliable service and 24 month warranty.