HFBR-53A5VEM 查看數據表（PDF） - HP => Agilent Technologies

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HFBR-53A5VEM

3.3 V 1 x 9 Fiber Optic Transceivers for Gigabit Ethernet Low Voltage

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HFBR-53A5VEM/FM, 850 nm VCSEL

Transmitter Optical Characteristics

(TA = 0°C to +70°C, VCC = 3.14 V to 3.47 V)

Parameter

Symbol

Min.

Typ.

Max. Unit

Reference

Output Optical Power

50/125 µm, NA = 0.20 Fiber

POUT

–9.5

–4

dBm avg. 1

Output Optical Power

62.5/125 µm, NA = 0.275 Fiber

POUT

–9.5

–4

dBm avg. 1

Optical Extinction Ratio

9

dB

2

Center Wavelength

Spectral Width – rms

λC

830

850

860

nm

σ

0.85

nm rms

Optical Rise/Fall Time

RIN12

Coupled Power Ratio

tr/tf

CPR

9

0.26

ns

–117

dB/Hz

dB

3, 4, Figure 1

5

Total Transmitter Jitter

Added at TP2

227

ps

6

Receiver Optical Characteristics

(TA = 0°C to +70°C, VCC = 3.14 V to 3.47 V)

Parameter

Symbol

Min.

Typ.

Max.

Input Optical Power

Stressed Receiver Sensitivity

PIN

–17

62.5 µm

50 µm

0

–12.5

–13.5

Stressed Receiver Eye

201

Opening at TP4

Receive Electrical 3 dB

1500

Upper Cutoff Frequency

Operating Center Wavelength

λC

770

860

Return Loss

12

Signal Detect – Asserted

PA

–17

Signal Detect – Deasserted

PD

–30

Signal Detect – Hysteresis

PA – PD

1.5

Unit

dBm avg.

dBm avg.

dBm avg.

ps

MHz

nm

dB

dBm avg.

dBm avg.

dB

Reference

7

8

8

6, 9

10

11

12

12

12

Notes:

1. The maximum Optical Output Power complies with the IEEE 802.3z specification, and is class 1 laser eye safe.

2. Optical Extinction Ratio is defined as the ratio of the average optical power of the transmitter in the high (“1”) state to the low (“0”) state.

Extinction Ratio shall be measured using the methods specified in TIA/EIA.526.4A. This measurement may be made with the node transmitting a

36A.3 data pattern. The Saturation Ratio is measured under fully modulated conditions with worst case reflections. A36A.3 data pattern is a

repeating K28.7 data pattern which generates a 125 mHz square wave.

3. These are unfiltered 20-80% values.

4. Laser transmitter pulse response characteristics are specified by an eye diagram (Figure 1). The characteristics include rise time, fall time, pulse

overshoot, pulse undershoot, and ringing, all of which are controlled to prevent excessive degradation of the receiver sensitivity. These

parameters are specified by the referenced Gigabit Ethernet eye diagram using the required filter. The output optical waveform complies with the

requirements of the eye mask discussed in section 38.6.5 and Fig. 38-2 of IEEE 802.3z.

5. CPR is measured in accordance with EIA/TIA-526-14A as referenced in 802.3z, section 38.6.10.

6. TP refers to the compliance point specified in 802.3z, section 38.2.1.

7. The receive sensitivity is measured using a worst case extinction ratio penalty while sampling at the center of the eye.

8. The stressed receiver sensitivity is measured using the conformance test signal defined in 802.3z, section 38.6.11. The conformance test signal is

conditioned by applying deterministic jitter and intersymbol interference.

9. The stressed receiver jitter is measured using the conformance test signal defined in 802.3z, section 38.6.11 and set to an average optical power

0.5 dB greater than the specified stressed receiver sensitivity.

10. The 3 dB electrical bandwidth of the receiver is measured using the technique outlined in 802.3z, section 38.6.12.

11. Return loss is defined as the minimum attenuation (dB) of received optical power for energy reflected back into the optical fiber.

12. With valid 8B/10B encoded data.

7

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