HFBR-2536 Avago Technologies US Inc., HFBR-2536 Datasheet - Page 3

• Manufacturer Part Number: HFBR-2536
• Description: RCVR OPT HI SPEED VERS LINK VERT
• Manufacturer: Avago Technologies US Inc.

Specifications of HFBR-2536

• Data Rate: 125MBd
• Voltage - Supply: 4.75 V ~ 5.25 V
• Current - Supply: 9mA
• Applications: General Purpose
• Function: The Receiverss convert a received optical signal to an analog output voltage.
• Product: Receiver
• Wavelength: 650 nm
• Maximum Rise Time: 6.3 ns
• Maximum Fall Time: 6.3 ns
• Maximum Output Current: 25 mA
• Operating Supply Voltage: - 0.5 V to + 6 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• For Use With: Plastic Optical Fiber, Hard Clad Silica
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Minimum Receivable: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

3
Plastic Optical Fiber (1 mm POF) Transmitter Application Circuit: Performance of the HFBR-15X7Z transmitter in the recom-
mended application circuit (Figure 1) for POF; 1-125 MBd, 25°C.
Hard Clad Silica Fiber (200 µm HCS) Transmitter Application Circuit: Performance of the HFBR-15X7Z transmitter in the recom-
mended application circuit (Figure 1) for HCS; 1-125 MBd, 25°C.
Notes:
1. Average optical power is measured with an average power meter at 50% duty cycle, after 1 meter of fiber.
2. To allow the LED to switch at high speeds, the recommended drive circuit modulates LED light output between two non-zero power levels.
3. High and low level LED currents refer to the current through the HFBR-15X7Z LED. The low level LED “off” current, sometimes referred to as
Parameter
Average Optical Power 1 mm POF
Average Modulated Power 1 mm POF
Optical Rise Time (10% to 90%)
Optical Fall Time (90% to 10%)
High Level LED Current (On)
Low Level LED Current (Off )
Optical Overshoot - 1 mm POF
Transmitter Application Circuit
Current Consumption - 1 mm POF
Parameter
Average Optical Power 200 µm HCS
Average Modulated Power 200 µm HCS
Optical Rise Time (10% to 90%)
Optical Fall Time (90% to 10%)
High Level LED Current (On)
Low Level LED Current (Off)
Optical Overshoot - 200 µm HCS
Transmitter Application Circuit
Current Consumption - 200 µm HCS
The modulated (useful) power is the difference between the high and low level of light output power (transmitted) or input power (received),
which can be measured with an average power meter as a function of duty cycle (see Figure 3). Average Modulated Power is defined as one
half the slope of the average power versus duty cycle:
“hold-on” current, is prebias supplied to the LED during the off state to facilitate fast switching speeds.
Average Modulated Power =
Symbol
P
P
I
I
I
Symbol
mod
t
t
avg
F,H
F,L
CC
[P
r
f
P
P
I
I
I
avg
mod
t
F,H
t
F,L
CC
avg
r
f
@ 80% duty cycle - P
Typical
-11.3
-9.7
110
2.1
2.8
19
45
3
Typical
-14.6
-16.2
130
(2) [0.80 - 0.20]
3.1
3.4
60
30
6
avg
@ 20% duty cycle]
dBm
dBm
Unit
mA
mA
mA
ns
ns
%
dBm
dBm
Unit
mA
mA
mA
ns
ns
%
50% Duty
Condition
50% Duty
Condition
5 MHz
5 MHz
Cycle
5 MHz
5 MHz
Cycle
Note 1, Fig 3
Note 2, Fig 3
Note 1, Fig 3
Note 2, Fig 3
Figure 1
Figure 1
Note 3
Note 3
Note 3
Note 3
Note
Note