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HFBR-0527PZ

P1-P3P4-P6P7-P9P10-P12
HFBR-0507Z Series
HFBR-15X7Z Transmitters
HFBR-25X6Z Receivers
125 Megabaud Versatile Link
The Versatile Fiber Optic Connection
Data Sheet
Features
RoHS-compliant
Data transmission at signal rates of 1 to 125 MBd over
distances of 100 meters
Compatible with inexpen sive, easily terminated plas-
tic optical  ber, and with large core silica  ber
High voltage isolation
Transmitter and receiver application circuit
sche matics and recommended board layouts avail-
able
Interlocking feature for single channel or duplex links,
in a vertical or horizontal mount con guration
Applications
Intra-system links: board-to-board, rack-to-rack
Telecommunications switching systems
Computer-to-peripheral data links, PC bus extension
Industrial control
Proprietary LANs
Digitized video
Medical instruments
Reduction of lightning and voltage transient suscepti-
bility
HCS
®
is a registered trademark of Spectran Corporation.
Description
The 125 MBd Versatile Link (HFBR-0507Z Series) is the
most cost-e ective  ber-optic solution for transmission
of 125 MBd data over 100 meters. The data link consists
of a 650 nm LED transmitter, HFBR-15X7Z, and a PIN/pre-
amp receiver, HFBR-25X6Z. These can be used with low-
cost plastic or silica  ber. One mm diameter plastic  ber
provides the lowest cost solution for distances under 25
meters. The lower attenuation of silica  ber allows data
transmission over longer distance, for a small di erence
in cost. These com po nents can be used for high speed
data links without the problems common with copper
wire solutions, at a competitive cost.
The HFBR-15X7Z transmitter is a high power 650 nm
LED in a low cost plastic housing designed to e ciently
couple power into 1 mm diameter plastic optical  ber
and 200 μm Hard Clad Silica (HCS
®
)  ber. With the recom-
mended drive circuit, the LED operates at speeds from
1-125 MBd. The HFBR-25X6Z is a high band width analog
receiver con tain ing a PIN photodiode and internal tran-
simpedance ampli er. With the recommended applica-
tion circuit for 125 MBd operation, the performance of
the complete data link is speci ed for of 0-25 meters with
plastic  ber and 0-100 meters with 200 μm HCS
®
ber. A
wide variety of other digitizing circuits can be combined
with the HFBR-0507Z Series to optimize perfor-mance
and cost at higher and lower data rates.
2
HFBR-0507Z Series
125 MBd Data Link
Data link operating conditions and performance are
speci ed for the HFBR-15X7Z transmitter and HFBR-25X6Z
receiver in the recommended applications circuits shown
in Figure 1. This circuit has been optimized for 125 MBd
operation. The Applications Engineer ing Department in
the Avago Optical Communication Division is available to
assist in optimizing link performance for higher or lower
speed operation.
Recommended Operating Conditions for the Circuits in Figures 1 and 2.
Parameter Symbol Min. Max. Unit Reference
Ambient Temperature T
A
0 70 °C
Supply Voltage V
CC
+4.75 +5.25 V
Data Input Voltage – Low V
IL
V
CC
-1.89 V
CC
-1.62 V
Data Input Voltage – High V
IH
V
CC
-1.06 V
CC
-0.70 V
Data Output Load R
L
45 55 Ω Note 1
Signaling Rate f
S
1 125 MBd
Duty Cycle D.C. 40 60 % Note 2
Link Performance: 1-125 MBd, BER ≤ 10
-9
, under recommended operating conditions with recommended transmit
and receive application circuits.
Parameter Symbol Min.
[3]
Typ.
[4]
Max. Unit Condition Reference
Optical Power Budget, 1 m POF OPB
POF
11 16 dB Note 5,6,7
Optical Power Margin, OPM
POF,20
3 6 dB Note 5,6,7
20 m Standard POF
Link Distance with l 20 27 m
Standard 1 mm POF
Optical Power Margin, OPM
POF,25
3 6 dB Note 5,6,7
25 m Low Loss POF
Link Distance with Extra l 25 32 m
Low Loss 1 mm POF
Optical Power Budget, 1 m HCS OPB
HCS
7 12 dB Note 5,6,7
Optical Power Margin, OPM
HCS,100
3 6 dB Note 5,6,7
100 m HCS
Link Distance with HCS Cable l 100 125 m
Notes:
1. If the output of U4C in Figure 1, page 4 is transmitted via coaxial cable, terminate with a 50 Ω resistor to V
CC
- 2 V.
2. Run length limited code with maximum run length of 10 μs.
3. Minimum link performance is projected based on the worst case speci cations of the HFBR-15X7Z transmitter, HFBR-25X6Z receiver,
and POF cable, and the typical performance of other components (e.g. logic gates, transistors, resistors, capacitors, quantizer, HCS cable).
4. Typical performance is at 25°C, 125 MBd, and is measured with typical values of all circuit components.
5. Standard cable is HFBR-RXXYYYZ plastic optical  ber , with a maximum attenuation of 0.24 dB/m at 650 nm and NA = 0.5.
Extra low loss cable is HFBR-EXXYYYZ plastic optical  ber, with a maximum attenuation of 0.19 dB/m at 650 nm and NA = 0.5.
HCS cable is HFBR-H/VXXYYY glass optical  ber, with a maximum attenuation of 10 dB/km at 650 nm and NA = 0.37.
6. Optical Power Budget is the di erence between the transmitter output power and the receiver sensitivity, measured after 1 meter of  ber.
The minimum OPB is based on the limits of optical component performance over temperature, process, and recommended power supply
variation.
7. The Optical Power Margin is the available OPB after including the e ects of attenuation and modal dispersion for the minimum link distance:
OPM = OPB - (attenuation power loss + modal dispersion power penalty). The minimum OPM is the margin available for longterm LED LOP
degradation and additional  xed passive losses (such as in-line connectors) in addition to the minimum speci ed distance.
3
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.
Parameter Symbol Typical Unit Condition Note
Average Optical Power 200 μm HCS P
avg
-14.6 dBm 50% Duty Note 1, Fig 3
Cycle
Average Modulated Power 200 μm HCS P
mod
-16.2 dBm Note 2, Fig 3
Optical Rise Time (10% to 90%) t
r
3.1 ns 5 MHz
Optical Fall Time (90% to 10%) t
f
3.4 ns 5 MHz
High Level LED Current (On) I
F,H
60 mA Note 3
Low Level LED Current (O ) I
F,L
6 mA Note 3
Optical Overshoot - 200 μm HCS 30 %
Transmitter Application Circuit I
CC
130 mA Figure 1
Current Consumption - 200 μm HCS
Notes:
1. Average optical power is measured with an average power meter at 50% duty cycle, after 1 meter of  ber.
2. To allow the LED to switch at high speeds, the recommended drive circuit modulates LED light output between two non-zero power levels.
The modulated (useful) power is the di erence 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 de ned as one
half the slope of the average power versus duty cycle:
[P
avg
@ 80% duty cycle - P
avg
@ 20% duty cycle]
Average Modulated Power =
(2) [0.80 - 0.20]
3. High and low level LED currents refer to the current through the HFBR-15X7Z LED. The low level LED “o ” current, sometimes referred to as
“hold-on” current, is prebias supplied to the LED during the o state to facilitate fast switching speeds.
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.
Parameter Symbol Typical Unit Condition Note
Average Optical Power 1 mm POF P
avg
-9.7 dBm 50% Duty Note 1, Fig 3
Cycle
Average Modulated Power 1 mm POF P
mod
-11.3 dBm Note 2, Fig 3
Optical Rise Time (10% to 90%) t
r
2.1 ns 5 MHz
Optical Fall Time (90% to 10%) t
f
2.8 ns 5 MHz
High Level LED Current (On) I
F, H
19 mA Note 3
Low Level LED Current (O ) I
F, L
3 mA Note 3
Optical Overshoot - 1 mm POF 45 %
Transmitter Application Circuit I
CC
110 mA Figure 1
Current Consumption - 1 mm POF
P1-P3P4-P6P7-P9P10-P12

HFBR-0527PZ

Mfr. #:
Buy HFBR-0527PZ
Manufacturer:
Broadcom / Avago
Description:
Fiber Optic Development Tools 125MBd 650nm POF Evaluation Kit
Lifecycle:
New from this manufacturer.
Delivery:
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