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> 40Gbps Serial Bit Error Rate Tester [BERT] |
40Gbps
Serial Bit Error Rate Tester <SeBERT-400B>
- 40Gb/s-Serial or 4x10Gb/s-Parallel BER Tester -
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SeBERT-400B is a serial bit
error rate (BER) tester for 40 Gb/s serial NRZ signal or 10Gb/s 4
channel parallel NRZ signals. It consists of four 10Gb/s pulse pattern
generator (PPG), four 10Gb/s error detectors (ED), a 4-1 multiplexer
(MUX), a 1-4 demultiplexer(DEMUX), a frequency synthesizer and a
frequency multiplier/divider circuit block.
The 10Gb/s PPGs generate pseudo-random bit sequence signal
(PRBS) with pattern length of 27-1, 223-1, 231-1.
40 Gb/s multiplexed output is quasi- PRBS (QPRBS) data.
In addition to the 40 Gb/s serial BER test, 10Gb/s 4
channel parallel bit error rate test is also available. The four 10
Gb/s error detectors(ED) receive the four 10Gb/s data from DUT. These
EDs count bit errors within a certain time period simultaneously, and
output the number of errors and the error rate value, then these values
are displayed on a PC screen via a USB port.
Utilizing the built-in frequency variable synthesizer, SeBERT-400B can
be operated at any rate between 39.8 and 44.0 Gb/s.
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Datasheets |
Typical Features
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 Data rate: 39.8 ~ 44.0 Gb/s
Functions of 40 Gb/s Serial BERT or
10Gb/s 4CH parallel BERT
40G data output pattern: Quasi-PRBS
(QPRBS) 27-1, 223-1, 231-1,
differential output
10G data output pattern: PRBS 27-1, 223-1 and 231-1,
single ended output
Data output amplitude: 400 mVpp (40
Gb/s serial, single ended), 500 mVpp (10Gb/s 4CH parallel)
Data output rise/fall time: 10 psec
(40 Gb/s serial), 23 psec (10Gb/s 4CH parallel)
Data output jitter: 0.5 psec rms (40
Gb/s serial), 1.5 psec rms (10Gb/s 4CH parallel)
Data input sensitivity: 160 mVpp (40
Gb/s serial, single ended case), 40 mVpp (10Gb/s 4CH parallel, single
ended)
Data input polarity exchange function
(for both 40 Gb/s serial and 10Gb/s 4CH parallel)
Built-in 622.1- 718.8 MHz internal
clock synthesizer
20, 10, 2.5 and 0.6 GHz clock output
for trigger
Small size and light weight: 450 x 505
x 134 mm, 12 kg.
AC Power supply: 85 to 264 Vac, 50/60
Hz
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Typical Performance
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Measured with Agilent 86116A
(63GHz electrical head) and 86100B(Mainframe) using 2.5GCKout as a
trigger.
(Note) Jitter and rise/fall time is limited by inherent performance of
the used oscilloscope. If 86118A(70GHz electrical head) and
86107A(precision time base) are used, much better eye will be obtained.
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| Fig.1
Eye-diagram of 40G Dout at40.0Gb/s speed |
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