4

HFBR-2602Z Receiver

Absolute Maximum Ratings

Parameter

Symbol

Min.

Max.

Units

Reference

Storage Temperature

-55

85

°C

Operating Temperature

-40

85

°C

Lead Soldering Cycle

Temp.

260

°C

Note 1

Time

10

s

Note 1

Supply Voltage

-0.5

7.0

V

Output Current

25

mA

Output Voltage

-0.5

18.0

V

Output Collector Power Dissipation

40

mW

Fan Out (TTL)

N

5

Note 8

Electrical/Optical Characteristics 0 to 55° C;

Parameter

Symbol

Min.

Max.

Unit

Condition

Reference

High Level Output Current

5

250

A

Low Level Output Voltage

0.4

0.5

V

High Level Supply Current

3.5

6.3

mA

Low Level Supply Current

6.2

10

mA

Parameter

Symbol

Min.

Max.

Unit

Condition

Reference

Peak Input Power

Level Logic HIGH

-31.2

dBm

Note 7

Peak Input Power

Level Logic LOW

-20.0

-5.0

dBm

Note 7

Propagation Delay

LOW to HIGH

60

ns

2 MBd

Note 8, 9

Propagation Delay

HIGH to LOW

110

ns

2 MBd

Note 8, 9

Pulse Width Distortion,

PWD

50

-50

ns

ns

Note 10

Figure 6

Notes:

1. 2.0 mm from where leads enter case.

3. Thermal resistance is measured with the transmitter coupled to a connector assembly and fiber, and mounted on a printed circuit board.

4. Pins 2, 6, and 7 are welded to the cathode header connection to minimize the thermal resistance from junction to ambient. To further reduce the

thermal resistance, the cathode trace should be made as large as is consistent with good RF circuit design.

5.

6. When changing

W to dBm, the optical power is referenced to 1 mW (1000 W). Optical Power P(dBm) = 10 log [P (W)/1000 W].

7. Measured at the end of 1mm plastic fiber optic cable with a large area detector.

.

9. Propagation delay through the system is the result of several sequentially occurring phenomena. Consequently it is a combination of data-rate-

limiting effects and of transmission-time effects. Because of this, the data-rate limit of the system must be described in terms of time differentials

between delays imposed on falling and rising edges. As the cable length is increased, the propagation delays increase. Data-rate, as limited by

pulse width distortion, is not affected by increasing cable length if the optical power level at the receiver is maintained.

10. Pulse width distortion is the difference between the delay of the rising and falling edges.

11. Both HFBR-1602Z and HFBR-1604Z meet the SERCOS "low attenuation" specifications when operated at 35 mA; only HFBR-1604Z meets the

SERCOS "high attenuation" limits when operated at 60 mA.