hfbr-7924h Avago Technologies, hfbr-7924h Datasheet

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hfbr-7924h

Manufacturer Part Number
hfbr-7924h
Description
Four-channel Pluggable Parallel Fiber Optic Transceiver Part Of The Avago Technologies Metrak Family
Manufacturer
Avago Technologies
Datasheet
HFBR-7924 and HFBR-7924E/H/EH
Four-Channel Pluggable Parallel Fiber Optic Transceiver
Part of the Avago Technologies METRAK family
Data Sheet
Description
The HFBR-7924 transceiver is a high performance fiber
optic module for parallel optical data communication
applications. It incorporates 8 independent data
channels (4 for transmit and 4 for receive) operating
from 1 to 2.7 Gb/s per channel providing a cost effective
solution for very short reach applications requiring 10.8
Gb/s aggregate bandwidth. The module is designed to
operate on multimode fiber systems at a nominal
wavelength of 850 nm. It incorporates high
performance, highly reliable, short wavelength optical
devices coupled with proven circuit technology to
provide long life and consistent service.
The HFBR-7924 transceiver module incorporates a 4
channel VCSEL (Vertical Cavity Surface Emitting Laser)
array together with a custom 4 channel laser driver
integrated circuit providing IEC-825 and CDRH Class
1M laser eye safety. It also contains a 4 channel PIN
photodiode array coupled with a custom preamplifier
/ post amplifier integrated circuit.
Operating on 3.3 V power supply this module provides
LVTTL/LVCMOS control interfaces and CML compatible
high speed data lines which simplify external circuitry.
The transceiver is housed in MTP
package with integral finned heatsink. Electrical
connections to the device are achieved by means of a
pluggable 10x10 connector array.
®
/MPO receptacled
Features
• Four Transmit and Four Receive Channels; 1 to 2.7
• Compatible with SONET scrambled and 8B10B
• 850 nm VCSEL array source
• Conforms to “POP4” Four-Channel Pluggable
• 50/125 µm multimode fiber operation
• Pluggable package
• Outputs (Tx & Rx) are squelched for loss of signal
• Control I/O is compatible with LVTTL and LVCMOS
• Standard MTP® MPO ribbon fiber connector
• Integrated heat sink
• Manufactured in an ISO 9002 certified facility
• Rx Signal Detect
Applications
• Telecom and Datacom Switch/Router Rack-to-Rack
• OC-192 Very Short Reach (VSR), OIF-VSR4-03.0,
• Computer Cluster Interconnects
GBd per channel
encoded data formats
Optical Transceiver Multisource Agreement
interface
Connections
Interconnects
Distance up to 300 m with
500 MHz.km fiber at 2.5 Gb/s
Distance up to 600 m with
2000 MHz.km fiber at 2.5 Gb/s

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hfbr-7924h Summary of contents

Page 1

... Four-Channel Pluggable Parallel Fiber Optic Transceiver Part of the Avago Technologies METRAK family Data Sheet Description The HFBR-7924 transceiver is a high performance fiber optic module for parallel optical data communication applications. It incorporates 8 independent data channels (4 for transmit and 4 for receive) operating from 1 to 2.7 Gb/s per channel providing a cost effective solution for very short reach applications requiring 10 ...

Page 2

Channels Input Driver Stage TX_DIS TX_EN Control TX_FAULT* TX_RESET Channels OUT Input Driver Stage ...

Page 3

... Package Dimensions Notes: 1. Module mass approximately 20 grams. Figure 4A. HFBR-7924 Package dimensions (dimensions in mm) Figure 4B. HFBR-7924E Package dimensions (dimensions in mm) 3 ...

Page 4

... Figure 5A - HFBR-7924H Package Dimensions (dimensions in mm) Figure 5B - HFBR-7924EH Package Dimensions (dimensions in mm) 4 ...

Page 5

MIN. PAD KEEP-OUT ∅ 0 ∅ 2.69 ± 0.05 HOLES FOR #2 SCREW ∅ 0.1 A B-C 18.42 MIN. 50 KEEP-OUT AREA FOR MPO CONNECTOR NOTE: The host electrical connector attached to ...

Page 6

Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause catastrophic damage to the device. Limits apply to each parameter in isolation, all other parameters having values within the recommended operating conditions. It should not be assumed ...

Page 7

Transmitter Electrical Characteristics (Over recommended operating conditions: Tc= 0ºC to +80º =3.3V + 5%) Parameter Differential Input Impedance FAULT* Assert time RESET* Assert time RESET* De-assert time Transmit Enable (TX_EN) Assert time Transmit Enable (TX_EN) De-assert time Transmit ...

Page 8

Receiver Electrical Characteristics (Over recommended operating conditions: Tc= 0ºC to +80º =3.3V + 5%) Parameter Differential Output Impedance Data Output Differential Peak-to-Peak Voltage Swing Inter-channel Skew Data Output Rise, Fall Time Control I/O Output Voltage Low Signal Detect ...

Page 9

... Eye Safety These 850 nm VCSEL-based transceiver modules provide eye safety by design. The HFBR-7924 has been registered with CDRH and certified by TUV as a Class 1M device under Amendment 2 of IEC 60825-1. See the Regulatory Compliannce Table for further detail. If Class 1M ...

Page 10

... Standards Association Joint Component Recognition for Information Technology Equipment Including Electrical Business Equipment. Notes: 24. EMI performance only refers to shielded version (HFBR-7924E and HFBR-7924HE). 25. EMI performance could be improved by connecting the following pads to electrical ground : C9, G7 and H9. 10 Performance Module > 1000 V Module > ...

Page 11

... Transceiver Module Pad Assignment - HFBR-7924 DOUT00 DOUT03+ 2 DOUT00 DOUT03 DOUT1 DOUT02- 5 DOUT1 DOUT02 DNC Reserved Reserved TBD MSA TBD MSA 9 DNC Reserved ...

Page 12

Table 2. Transceiver Module Pad Description Symbol Din +/- through Din +/- TX_DIS TX_EN TX_FAULT* TX_RESET* V _TX EE V _TX CC Dout +/- through Dout Ch 0 ...

Page 13

... HFBR-7924 Vcc Tx Vcc Tx C12 Vcc Tx 0.1 µF 0603 Vcc Tx VccA Rx VccA Rx C8 0.1 µF 0603 VccB Rx VccB Rx C4 VccB Rx 0.1 µF 0603 Figure 8 - Recommended power supply filter 13 R5 100 Ω 0603 R6 1.0 kΩ 0603 L6 6.8 nH 0805 L5 1 µH 2220 C11 C10 0.1 µF 10 µF 10 µF ...

Page 14

D + OUT RECEIVER D - OUT AC COUPLING CAPACITORS (DC BLOCKING CAPACITORS) SHOULD BE USED TO CONNECT DATA OUTPUTS TO THE LOAD. THE DIFFERENTIAL DATA PAIR SHOULD BE TERMINATED WITH A DIFFERENTIAL LOAD, R LOAD SHOWN ...

Page 15

NO FAULT DETECTED < 100 µs FAULT* TX OUT Figure 13 - Transmitter FAULT* signal timing diagram RESET* FAULT* >100 (max) ~4.2 ms TX_OUT Ch 0 SHUTDOWN TX_OUT Ch 1 TX_OUT Ch 2 ...

Page 16

TX_EN ~ 7.5 µs TX OUT Shutdown Normal (a) ~18 ms [1] TX_EN ~4 OUT OUT OUT OUT Ch 3 Figure 15 - ...

Page 17

Vcc > 2.8V Vcc ~21 ms 6.5ms TX_OUT 0 ~4.6ms TX_OUT 1 ~4.6ms TX_OUT 2 ~4.6ms TX_OUT 3 Figure 17. Typical Transmitter Power-Up Sequence 17 NORMAL NORMAL NORMAL NORMAL ...

Page 18

... Sales Office. HFBR-7924 No EMI Nose Shield HFBR-7924E With Extended EMI Nose Shield HFBR-7924H No heatsink, No EMI Nose Shield HFBR-7924EH No heatsink, with EMI Nose Shield For product information and a complete list of distributors, please go to our web site: Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies, Limited in the United States and other countries. ...

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