E4887A Datasheet, PDF (11/20 Pages) Agilent(Hewlett-Packard) – Signal Generator Platform

E4887A-003
Frequency range
20.843 Mb/s to 3.4 Gb/s (E4861B/E4862B)
internal clock mode ¹⁾
Skew between data channels
50 ps typ.²⁾³⁾
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 period⁴⁾
Delay resolution
1 ps
Delay accuracy
±25 ps ±50 ppm relative to zero-delay placement³⁾
Table 9: 3.4 Gb/s Signal Generator: timing specifications
1) 33250A Arbitrary Waveform 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
E4887A-003 (E4861B/62B)
Output
Impedance
Output amplitude/resolution
Output voltage window
Differential or single ended, 3.5 mm(f)
50 Ω typ.
0.05 Vpp to 1.8 Vpp / 10 mV
-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 10: 3.4 Gb/s 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
E49887A-003 (E4861B/62B)
PRBS/PRWS
Errored PRBS/PRWS
2n-1
n = 7, 9, 10, 11, 15, 23, 31
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 11: 3.4 Gb/s 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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