HFBR-5111 データシートの表示（PDF） - HP => Agilent Technologies
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HFBR-5111 Datasheet PDF : 15 Pages
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1.25
1.025
1.00
0.975
0.90
0.50
4.40
1.975
0.075
10.0
5.6
100% TIME
INTERVAL
40 ± 0.7
± 0.725
± 0.725
4.850
1.525
0.525
0% TIME
INTERVAL
0.10
0.025
0.0
-0.025
-0.05
5.6
10.0
1.525
0.525
4.850
80 ± 500 ppm
TIME – ns
0.075
1.975
4.40
THE HFBR-511X OUTPUT OPTICAL PULSE SHAPE FITS WITHIN THE BOUNDARIES
OF THE PULSE ENVELOPE FOR RISE AND FALL TIME MEASUREMENTS.
Figure 10. Output Optical Pulse Envelope.
5
4
3
2.5 x 10-10 BER
2
1.0 x 10-12 BER
1
0
-4 -3 -2 -1 0 1 2 3 4
EYE SAMPLING TIME POSITION (ns)
CONDITIONS:
1.TA = 25° C
2. VCC = 5 Vdc
3. INPUT OPTICAL RISE/FALL TIMES = 1.0/2.1 ns.
4. INPUT OPTICAL POWER IS NORMALIZED TO
CENTER OF DATA SYMBOL.
5. NOTE 20 AND 21 APPLY.
Figure 11. Relative Input Optical
Power vs. Eye Sampling Time
Position.
-31.0 dBm
-45.0 dBm
PA (PO + 1.5 dB
< PA < -31.0 dBm)
INPUT OPTICAL POWER
(> 1.5 dB STEP INCREASE)
MIN (PO + 4.0 dB OR -31.0 dBm)
PO = MAX (PS OR -45.0 dBm)
(PS = INPUT POWER FOR BER < 102)
INPUT OPTICAL POWER
(> 4.0 dB STEP DECREASE)
SIGNAL – DETECT (ON)
SIGNAL – DETECT (OFF)
AS – MAX
ANS – MAX
TIME
AS – MAX — MAXIMUM ACQUISITION TIME (SIGNAL).
AS – MAX IS THE MAXIMUM SIGNAL – DETECT ASSERTION TIME FOR THE STATION.
AS – MAX SHALL NOT EXCEED 100.0 µs. THE DEFAULT VALUE OF AS – MAX IS 100.0 µs.
ANS – MAX — MAXIMUM ACQUISITION TIME (NO SIGNAL).
ANS – MAX IS THE MAXIMUM SIGNAL – DETECT DEASSERTION TIME FOR THE STATION.
ANS – MAX SHALL NOT EXCEED 350 µs. THE DEFAULT VALUE OF AS – MAX IS 350 µs.
Figure 12. Signal Detect Thresholds and Timing.
102
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