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English URL
www.agilent.com/find/products
N4916A
De-Emphasis Signal Converter N4916A
Serial Bit Error Ratio Tester
De-emphasis Signal Injection Enables Robust Receiver
and Board Designs
The N4916A de-emphasis signal converter enables design and test
engineers to accurately characterize gigabit serial ports and chan-
nels that operate with de-emphasized signals. This results in more
robust receiver designs, with reliable operation in real printed
circuit board environments.
De-emphasis is a commonly used technique for transmitting
electrical signals at gigabit data rates to compensate for the losses
caused by PC board traces.
Many popular serial bus standards, such as Display Port, PCI
Express®, SATA 3 Gb/s, fully-buffered DIMM, Hypertransport, CEI,
10 Gigabit Ethernet require transmit de-emphasis.
The de-emphasis signal converter can be controlled via the
graphical user interface of the J-BERT N4903A serial high-perfor-
mance BERT and the 81141/42A serial pulse data generator.
• Variable de-emphasis post-cursor up to 12 dB in 0.1 dB steps
• Supports data rates up to 13.5 Gb/s
• Differential outputs
• Operation via integrated user-interface of the J-BERT N4903A
and the 81141A and 81142A serial pulse data generators
• Jitter feed-through for worst-case testing
Specifications
Operation Range
1.5 Gb/s to 13.5 Gb/s (12.5 Gb/s max. with J-BERT N4903A)
Format
NRZ
Output Amplitude
Differential: 200 mV to 1.6 V
Single-ended: 100 mV to 0.8 V
De-emphasis Amplitude Ratio
0 dB to 12 dB, in 0.1 dB steps
Interface
2.4mm (f), DC coupled 50 Ohm
Accessories
N4910A
2.4 mm Matched cable pair
N4915A-004
One 2.4 mm cable (m-m)
Key Literature & Web Link
www.agilent.com/find/n4916
Ordering Information
N4916A
De-emphasis Signal Converter, includes one 50 Ohm termination
SMA, one 2.4 mm to SMA adapter. No signal cables included.
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