HFBR-2515B Avago Technologies US Inc., HFBR-2515B Datasheet - Page 3

• Manufacturer Part Number: HFBR-2515B
• Description: RCVR OPTICAL 1.5MBD PROFIBUS ST
• Manufacturer: Avago Technologies US Inc.

Specifications of HFBR-2515B

• Data Rate: 10MBd
• Voltage - Supply: 4.75 V ~ 5.25 V
• Current - Supply: 27mA
• Applications: General Purpose
• Function: Fiber Optic Receivers for Profibus applications
• Product: Receiver
• Wavelength: 650 nm
• Diode Capacitance: 60 pF
• Maximum Rise Time: 30 ns
• Maximum Fall Time: 30 ns
• Maximum Output Current: 16 mA
• Operating Supply Voltage: - 0.5 V to + 5.5 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Package / Case: PDIP-6
• For Use With: Plastic Optical Fiber
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Minimum Receivable: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Typical link block diagram from DC to 10 MBd
The optical receivers from DC up to 10 MBd include a photodiode, preamp, and quantizer
circuit (shown in the block diagram below). These receivers have TTL outputs (dc coupled)
and can be used with arbitrary timing (no duty factor restriction). Typical applications are
RS232, RS485, SERCOS, INTERBUS-S and PROFIBUS protocols.
The receivers for data rates from 1 MBd to 175 MBd include a photodiode, pre-amp and
analog outputs. They have to be ac coupled to a comparator or quantizer circuitry to provide
digital logic levels (I.e. ECL, TTL). The ac coupling requires encoding of the serial data (I.e.
Manchester, 4B/5B, scrambled coding), but provide better sensitivity than DC coupled
receivers.
The application notes describe cost-effective solutions for digital fiber optic data commun-
ication links that are compatible with TTL logic for different data rate up to 160 MBd.
Plastic Optical Fiber (POF) Components
Avago Technologies is committed to the advancement of fiber optics technologies and
recognizes the importance of optical data transmission for today’s growing data networking
needs. Plastic Optic Fiber (POF) enables low cost applications with the advantages of optical
data transmission; perfect for automotive, industrial and consumer markets.
The tables on page 4 and 5 of this selection guide will help you select a part number for the data
rate of your application. Please search our website by the Avago part number for additional design
information at: www.avagotech.com/fiber or avagotech.com/pof.
Typical link block diagram from 1 MBd to 175 MBd
Parallel
Parallel
Parallel
Parallel
Serial
Serial
Serial
Serial
Driver
Driver
Driver
Driver
LED
LED
LED
LED
Transmitter
Transmitter
Transmitter
Transmitter
Receiver
Receiver
Receiver
Receiver
Quantizer
Quantizer
Quantizer
Quantizer
Serial
Serial
Serial
Serial
Parallel
Parallel
Parallel
Parallel
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