Broadcom

- 4 -

AFBR-1555ARZ, AFBR-2555ARZ

(SMA Tx/Rx for SERCOS)

Data Sheet

Peak Output Power

Peak Output Power

–40°C to +85° unless otherwise stated.

Electrical and Optical Characteristics

–40°C to +85° unless otherwise stated.

Parameter

Symbol

Min

a.

Typical data are at 25°C.

Max

Unit

Conditions

Reference

30-mA, 1-mm POF

200-μm PCS

–6.5

–18

–1

–12

2

–9

dBm

Figure 2

b.

Optical power measured with polished connector end face at the end of 1 meter of 1-mm diameter POF with a numerical aperture (NA) of 0.5, or of 200-μm

diameter PCS, with NA = 0.37, using a large area detector.

c.

Minimum and maximum values for PT over temperature are based on a fixed drive current.

10-mA,1-mm POF

–11.5

–6

–3

dBm

Notes b, c

Figure 2

5-mA,1-mm POF

–14.5

–9

–6

dBm

Notes b, c

Figure 2

3-mA, 1-mm POF

–16.5

–11

–8

dBm

Notes b, c

Figure 2

30-mA, 1-mm POF, 25°C

PT,30,25

–3

–1

1

dBm

T = 25°C

Notes b, d

Figure 2

d.

This parameter refers to initial (0hrs) operation at 25°C only. Any degredation by aging effects of the LED as well as temperature effects are not considered.

Optical Power Temperature Coefficient

—

–0.01

—

dB/ºC

–40°C to +25°C

—

–0.02

—

dB/ºC

+25°C to +85°C

Parameter

Symbol

Min

a.

Typical data are at 25°C.

Max

Unit

Conditions

Reference

Forward Voltage

1.4

—

2.3

V

Forward Voltage Temperature Coefficient

—

1.6

—

mV/°C

Figure 1

Reverse Input Breakdown Voltage

920

—

V

—

Peak Emission Wavelength

630

650

685

nm

—

Peak Emission Wavelength Temperature

Coefficient

Δλ/ΔT

—

0.16

—

nm/K

—

Spectral Width

FWHM

—

20

—

nm

—

Diode Capacitance

—30

70

pF

—

Optical Rise Time

——

16

ns

10% to 90%

b.

Using the recommended drive circuitry according to Figure 3.

Optical Fall Time

——

16

ns

90% to 10%

Note b