HFBR-1602Z Avago Technologies US Inc., HFBR-1602Z Datasheet - Page 5

• Manufacturer Part Number: HFBR-1602Z
• Description: XMITTER OPTICAL 2MBD SERCOS
• Manufacturer: Avago Technologies US Inc.

Specifications of HFBR-1602Z

• Wavelength: 655nm
• Spectral Bandwidth: 20nm
• Voltage - Forward (vf) Typ: 1.9V
• Current - Dc Forward (if): 60mA
• Voltage - Dc Reverse (vr) (max): 5V
• Capacitance: 30pF
• Connector Type: SMA
• Function: 2 MBd Optical Transmitter for SERCOS, SMA Port
• Product: Transmitter
• Data Rate: 2 MBd
• Diode Capacitance: 30 pF
• Maximum Rise Time: 57 ns (Typ)
• Maximum Fall Time: 40 ns (Typ)
• Operating Supply Voltage: 7 VDC
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: Plastic Optical Fiber
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

5
Notes:
1. 2.0 mm from where leads enter case.
2. Typical data at T
3. Thermal resistance is measured with the
4. Pins 2, 6, and 7 are welded to the cathode
5. P
Figure 1. Forward voltage and current
characteristics.
transmitter coupled to a connector
assembly and fiber, and mounted on a
printed circuit board.
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.
at the end of 0.5 metre of plastic optical
fiber with 1 mm diameter and numerical
aperture of 0.5.
T
is measured with a large area detector
A
= +25 C.
Figure 4. Typical propagation delay through system
with 0.5 metre of cable.
6. When changing W to dBm, the optical
7. Measured at the end of 1mm plastic fiber
8. 8 mA load (5 x 1.6 mA), R
9. Propagation delay through the system is
Figure 2. Typical transmitter output vs.
forward current.
power is referenced to 1 mW (1000 W).
Optical Power P(dBm) = 10 log [P ( W)/
1000 W].
optic cable with a large area detector.
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
L
= 560 .
Figure 5. Typical HFBR-160XZ/2602Z link
pulsewidth distortion vs. optical power.
10. Pulse width distortion is the difference
11. Both HFBR-1602Z and HFBR-1604Z meet
Figure 3. Transmitter spectrum normalized to
the peak at 25 C.
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.
between the delay of the rising and falling
edges.
the SERCOS "low attenuation"
specifications when operated at 35 mA;
only HFBR-1604Z meets the SERCOS "high
attenuation" limits when operated at
60 mA.