E4887A Datasheet, PDF (7/20 Pages) Agilent(Hewlett-Packard) – Signal Generator Platform

E4887A-007
Frequency range
620 Mb/s to 7 Gb/s
internal clock mode¹⁾
620 Mb/s to 6 Gb/s
ESG E44838C with opt. 506 used as clock source
620 Mb/s to 4 Gb/s
ESG E44838C with opt. 504 used as clock source
Skew between data channels
20 ps typ.²⁾³⁾⁵⁾
Delay = start delay + fine delay
Can be specified as leading edge delay in fraction of bits in each channel
Start delay range
Fine delay range
0 ns to 100 ns
±1 period⁴⁾
Delay resolution
Delay accuracy
100 fs
±10 ps ±20 ppm relative to zero-delay placement³⁾⁵⁾
Relative delay accuracy
±2 ps ±2% typ.³⁾
Table 3: TMDS Signal Generator: timing specifications
1) E4438C ESG Vector Signal Generator needed for jitter injection
2) After cable deskewing at customer levels and unchanged system frequency.
3) @ 25 °C to 40 °C ambient temperature
4) Can be changed without stopping the system
5) For N4910A cable set (2.4 mm connector, 24” matched pair)
E4887A-007 (N4874A)
Output
Differential or single ended, 2.4 mm(f)¹⁾
Impedance
50 Ω typ.
Output amplitude/resolution
0.1 Vpp to 1.8 Vpp / 5 mV
Output voltage window
-2 V to +3 V; for HDMI output up to 3.3V use Bias Tee kit²⁾
Data formats
NRZ, DNRZ
Transition times 20% to 80%
<20 ps⁴⁾
Intrinsic jitter
9 ps peak to peak typ.³⁾⁴⁾
Table 4: TMDS Signal Generator: output specifications
1) In single ended mode, the unused output must be terminated with 50 Ω to GND
2) Voltage window direct at module output is -2 V to +3 V; DC power supply needed with Bias Tee.
3) Clock out to data out of same module. NRZ data format
4) For N4910A cable set (2.4 mm connector, 24” matched pair)
E4887A-007 (N4874A)
PRBS/PRWS
2n-1
n = 7, 9, 10, 11, 15, 23, 31
Errored PRBS/PRWS
2n-1
n = 7, 9, 10, 11, 15
Extended ones or zeroes
2n-1
n = 7, 9, 10, 11, 15
User definable memory based patterns Up to 64 Mbit
Video formats
See table 4, requires E4887A-207 HDMI frame generator software
Table 5: TMDS Signal Generator: pattern and video formats
Specification assumptions
The specifications in this data sheet describe the instrument’s warranted
performance. Non-warranted values are stated as typical (typ.).
All specifications are valid from 10 °C to 40 °C ambient temperature after a
30 minute warm-up phase, with outputs and inputs terminated with 50 Ω to
ground at ECL levels if not specified otherwise.
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