Key Features
- Wide-band pattern generator for bipolar return-to-zero
pulses at data rates up to 15 Ghz
- 512 MBit memory for user programmable pattern
- Variable pattern length
- Ternary output signal
- Amplitude of positive and negative pulses independently
adjustable
- Complementary outputs
- Latest technology using SiGe, InP, GaAs integrated
circuits and ECL-ASICs
- Compact desktop design with very low power consumption
- Customized special features on demand
Brief Description
The wide-band tuneable pattern generator BPG
30G-TER 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 300 Mhz and 15 Ghz.
The length of the user pattern is configurable
from 16 digit up to 268.435.456 digit and is repeated periodically.
Each digit can be set to a positive or negative pulse or to zero.
The pattern memory can be split in 2 or 4 parts
to toggle synchronously between different waveforms. Two short user
pattern with 16 digit and 128 digit length are programmable via the
front panel.
The amplitude of the positive and negative
pulses of the ternary data signal is independently adjustable
between 0.1V and 0.5 V. Complementary outputs for
push-pull applications are provided.
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 as
well via an easy-to-use graphical user interface on your PC.
Output Signals
-
Pulse pattern with independent amplitudes:
The amplitude of the positive and negative
pulses of the ternary signal can be adjusted independently and for
both ouput channels seperately. This means four amplitude voltages
can be independently set and changed:
- VData+ and VData- define the
amplitude of the positive and negative pulses respectively of the
'Data' output signal
- V/Data+ and V/Data- define the
amplitude of the positive and negative pulses respectively of the
'/Data' output signal
The adjustment range for all four voltages is 0.1 V to 0.5 V
(+/-10% 50 Ω) with a resolution of 1 mV.
(200 ps/div, 300 mV/div)
-
Complementary bipolar pulse pattern at 15 Ghz clock rate:
( 100 ps/div, 300mV/div )
-
Complementary bipolar eye diagram at 15 GHz clock rate:
(20 ps/div, 300 mV/div)
Technical Specifications
| BPG 30G-TER |
| Clock rate |
0.3 Ghz ... 15 Ghz, continously tunable
(each clock cycle represents one positive or
negative RZ-pulse, the pulse width is half the
clock period) |
| Clock Input |
0.3 Ghz ... 15 Ghz
Ui = 0.5 .. 1 Vpp, Ri = 50 Ohm,
50 Ohm SMA, |r| < 0,2
6 digit frequency display
|
| Data Outputs |
- Data, 2,92 mm connector 50 Ohm
- /Data, 2,92 mm connector 50 Ohm
Bipolar data code -V / 0 / +V
Four amplitude voltages VData+, VData-, V/Data+
und V/Data- independently adjustable with a resolution
of 1 mV
V = 0.1 ... 0.5 V +/- 10% into 50 Ohm
Rise/Falltime < 20 ps (20/80%),
Jitter (pp) < 10 ps.
DC-Offset regulation of the Data and /Data voltage for
zero-potential adjustment
Polarity reversible (positive and negative pulses interchanged) |
| Pattern |
- Pulse Pattern 16 digit ternary coded
- Pulse Pattern 128 digit ternary coded, programmable by
front panel.
- Pulse Pattern 128 * m digit (m = 2,3 ... 221)
(= max. 268.435.456 digit ternary code) programmable by
interface.
- Pulse pattern consisting of two parts with the length
of 128 * m digit (m = 3,4 ... 220) programmable and
selectable by interface.
- Pulse pattern consisting of four parts with the length
of 128 * m digit (m = 3,4 ... 219) programmable and
selectable by interface.
All pattern are programmable via interface. The programmed
pattern should have approximately the same number of positive and
negative pulses. |
| Clock Output |
Clock and /Clock, CML: 0/-0.5V (+/- 0.2 V),
DC-coupled, 50 Ohm SMA,
Clock to data skew < 10ps |
| Trigger Output |
- CML: 0V/-0.4V into 50 Ohm SMA
Clock/8 or Word Frame Trigger selectable, Pulse width: 128 Clock
periods
- TTL Word Frame Trigger 1: 0V/+3V, SMA connector (rear
panel) Trigger frequency according to the choosen pattern, pulse
width selectable: 1024, 2048, 3076 or 4096 clock periods
- TTL Word Frame Trigger 2: 0V/+3V, SMA connector (rear
panel) Trigger frequency according to the choosen pattern, pulse
width selectable: 1024, 2048, 3076 or 4096 clock periods
|
| Interface |
USB, Data transmission up to 1 MByte/s
Option: GPIB Interface, IEEE 488 compatible |
| Software |
Graphical User Interface for operation and pattern
programming |
| Dimensions |
19" Desktop, W x H x D = 462 x 135 x 435 mm |
| Weight |
approx. 9 kg |
| Power Supply |
110V-120V/60Hz/70VA
or 220V-240V/50Hz/70VA |
The instrument is produced by SYMPULS in
Germany.
We offer a reliable service and 24 month warranty.
|
