Tektronix CSA8000 Series, Service Manual

Page: 56 / 354

80C00 Modules Specifications
CSA8000 & TDS8000 Instruments and Sampling Modules
1–33
Table 1–19: Optical modules – Clock recovery option (CR) (Cont.)
Name Characteristics
Clock and data rise
time and fall times
2
80C01:
t
200 ps
80C02 Serial DATA output:
t
30 ps
Serial CLOCK output:
t
30 ps
1/16th CLOCK output:
t
300 ps
80C03:
t
250 ps
80C04 Serial DATA output:
t
30 ps
Serial CLOCK output:
t
30 ps
1/16th CLOCK output:
t
300 ps
n
Recovered clock
timing jitter
3, 4
80C01:
t
8.0 ps RMS maximum
t
4.0 ps RMS typical
80C02:
t
2.0 ps RMS maximum
t
1.0 ps RMS typical
5
80C03:
t
8.0 ps RMS maximum
t
4.0 ps RMS typical
80C04:
t
2.0 ps RMS maximum
t
1.0 ps RMS typical
5
Optical power meter
range 80C01, 80C02, 80C03, 80C04:
+4 dBm to –30 dBm, typical
80C05:
+13 dBm to –21 dBm, typical
80C06:
+13 dBm to –21 dBm, typical
Optical power meter
accuracy, typical 5% of r connector uncertainty, at the calibrated wavelengths.
See Table 1–18, page 1–18.
1
These powers are the average optical input coupled into the external Optical
Sampling Module optical input connector. The range is defined for recovered clock
and data with a resulting BER of 1x10
–10
or less, a 50% duty cycle of the incoming
data (also referred to as 50% mark density), a PRBS pattern of 2
23–1
, and an
extinction ratio of
w
8.2 dB (at eye center).
2
Output is 50
W
AC coupled: specification is for output amplitude at the bulkhead
outputs and does not include RF loss of attached cables.
3
The clock jitter is applicable to both the external electrical output and the system
jitter experienced when the recovered clock is the source of the waveform trigger for
the system.