E4887A Datasheet, PDF (9/20 Pages) Agilent(Hewlett-Packard) – Signal Generator Platform

E4887A-037
Frequency range
20.843 Mb/s to 3.4 Gb/s (E4861B/E4862B)
internal clock mode¹⁾
620 Mb/s to 6 Gb/s (N4874A)
ESG E44838C with opt. 506 used as clock source ²⁾
620 Mb/s to 4 Gb/s (N4874A)
ESG E44838C with opt. 504 used as clock source
Skew between data channels
50 ps typ.³⁾⁴⁾
Delay = start delay + fine delay
Can be specified as leading edge delay in fraction of bits in each channel
Start delay range
0 ns to 200 ns
Fine delay range
±1 period⁵⁾
Delay resolution
1 ps
Delay accuracy
±25 ps ±50 ppm relative to zero-delay placement³⁾
Table 6: TMDS Signal Generator: timing specifications
1) 33250A Arbitrary Waveform Generator needed for jitter injection
2) E4438C ESG Vector Signal Generator needed for jitter injection
3) After cable deskewing at customer levels and unchanged system frequency.
4) @ 25 °C to 40 °C ambient temperature
5) Can be changed without stopping the system
E4887A-037 (E4861B/62B)
Output
Differential or single ended, 3.5 mm(f)
Impedance
50 Ω typ.
Output amplitude/resolution
0.05 Vpp to 1.8 Vpp / 10 mV
Output voltage window
-2 V to +3.5 V; for HDMI output up to 3.3V use Bias Tee kit¹⁾
Data formats
NRZ, DNRZ
Transition times 20% to 80%
<75 ps
Intrinsic jitter
<30 ps peak to peak typ.²⁾
Table 7: TMDS Signal Generator: output specifications
1) Voltage window direct at module output is -2 V to +3.5 V; DC power supply needed with Bias Tee. For output voltage > 3 V the
termination voltage > 3 V needs to be applied
2) Measured with E4808A Clock Module, spec as intra channel jitter
E4887A-037 (E4861B/62B)
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 16 Mbit
Video formats
See table 4, requires E4887A-207 HDMI frame generator software
Table 8: 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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