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PDF HFBR-25X6 Data sheet ( Hoja de datos )
| Número de pieza | HFBR-25X6 | |
| Descripción | 125 Megabaud Versatile Link The Versatile Fiber Optic Connection | |
| Fabricantes | Agilent(Hewlett-Packard) | |
| Logotipo | .gif "Agilent(Hewlett-Packard)"){kind=logo} |
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125 Megabaud Versatile Link
The Versatile Fiber Optic
Connection
Technical Data
HFBR-0507 Series
HFBR-15X7 Transmitters
HFBR-25X6 Receivers
Features
• Data Transmission at Signal
Rates of 1 to 125 MBd over
Distances of 100 Meters
• Compatible with Inexpen-
sive, Easily Terminated
Plastic Optical Fiber, and
with Large Core Silica Fiber
• High Voltage Isolation
• Transmitter and Receiver
Application Circuit Sche-
matics and Recommended
Board Layouts Available
• Interlocking Feature for
Single Channel or Duplex
Links, in a Vertical or
Horizontal Mount
Configuration
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
Susceptibility
Description
The 125 MBd Versatile Link
(HFBR-0507 Series) is the most
cost-effective fiber-optic solution
for transmission of 125 MBd data
over 100 meters. The data link
consists of a 650 nm LED
transmitter, HFBR-15X7, and a
PIN/preamp receiver, HFBR-
25X6. These can be used with
low-cost plastic or silica fiber.
One mm diameter plastic fiber
provides the lowest cost solution
for distances under 25 meters.
The lower attenuation of silica
fiber allows data transmission
over longer distance, for a small
difference in cost. These compo-
nents can be used for high speed
data links without the problems
common with copper wire
solutions, at a competitive cost.
The HFBR-15X7 transmitter is a
high power 650 nm LED in a low
cost plastic housing designed to
efficiently couple power into 1
mm diameter plastic optical fiber
and 200 µm Hard Clad Silica
(HCS®) fiber. With the recom-
mended drive circuit, the LED
operates at speeds from 1-125
MBd. The HFBR-25X6 is a high
bandwidth analog receiver con-
taining a PIN photodiode and
internal transimpedance amplifier.
With the recommended applica-
tion circuit for 125 MBd
operation, the performance of the
complete data link is specified for
of 0-25 meters with plastic fiber
and 0-100 meters with 200 µm
HCS® fiber. A wide variety of
other digitizing circuits can be
combined with the HFBR-0507
Series to optimize performance
and cost at higher and lower data
rates.
HCS® is a registered trademark of Spectran Corporation.
5965-6114E (1/97)
17
1 page  
+5 V ECL
SERIAL DATA
SOURCE
+
5V
–
0.1 µF
82 Ω 82 Ω
+5 V ECL
SERIAL DATA
RECEIVER
120 Ω
120 Ω
120 Ω
120 Ω
0.1 µF
82 Ω
82 Ω
+
10 µF
4.7 µH
0.1 µF
10 µF
+
0.1 µF
4.7 µH
4.7 µH
9 TX VEE
8 TD
7 TD
6 TX VCC
5 RX VCC
4
3 RD
2 RD
FIBER-OPTIC
TRANSCEIVER
SHOWN IN
FIGURE 1
1 RX VEE
Figure 2. Recommended Power Supply Filter and +5 V ECL Signal Terminations for
the Transmitter and Receiver Application Circuit of Figure 1.
200
150
100
50
0
0
AVERAGE
MODULATED
POWER
AVERAGE POWER,
50% DUTY CYCLE
20 40 60 80
DUTY CYCLE – %
100
Figure 3. Average Modulated Power.
21
POF
19
17
15
HCS
13
11
9
10 30
50 70 90 110 130 150
DATA RATE – MBd
Figure 4. Typical Optical Power
Budget vs. Data Rate.
21
5 Page 
Figure 1. Recommended Power Supply Filter Circuit.
Figure 2. Simplified Receiver Schematic.
Figure 3. Typical Pulse Width
Distortion vs. Peak Input Power.
Figure 4. Typical Output Spectral
Noise Density vs. Frequency.
Figure 5. Typical Rise and Fall Time
vs. Temperature..
27
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet HFBR-25X6.PDF ] | |
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