HFBR-789BHZ

HFBR-789BHZ Datasheet


HFBR-779BWZ/BEWZ/BHWZ and HFBR-789BZ/BEZ/BHZ Pluggable Parallel Fiber Optic Modules, Transmitter and Receiver

Part Datasheet
HFBR-789BHZ HFBR-789BHZ HFBR-789BHZ (pdf)
Related Parts Information
HFBR-779BHWZ HFBR-779BHWZ HFBR-779BHWZ
HFBR-779BEWZ HFBR-779BEWZ HFBR-779BEWZ
HFBR-779BWZ HFBR-779BWZ HFBR-779BWZ
HFBR-789BEZ HFBR-789BEZ HFBR-789BEZ
HFBR-789BZ HFBR-789BZ HFBR-789BZ
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HFBR-779BWZ/BEWZ/BHWZ and HFBR-789BZ/BEZ/BHZ Pluggable Parallel Fiber Optic Modules, Transmitter and Receiver

Data Sheet

The HFBR-779BWZ transmitter and HFBR-789BZ receiver are high performance fiber optic modules for parallel optical data communication applications. These 12channel devices, operating up to Gbd per channel, provide a cost effective solution for short-reach applications requiring up to 32 Gb/s aggregate bandwidth. These modules are designed to operate on multimode fiber systems at a nominal wavelength of 850 nm. They incorporate high performance, highly reliable, short wavelength optical devices coupled with proven circuit technology to provide long life and consistent service.

The HFBR-779BWZ transmitter module incorporates a 12channel VCSEL Vertical Cavity Surface Emitting Laser array together with a custom 12-channel laser driver integrated circuit providing IEC-60825 and CDRH Class 1M laser eye safety.

The HFBR-789BZ receiver module contains a 12-channel PIN photodiode array coupled with a custom preamplifier / post amplifier integrated circuit.

Operating from a single V power supply, both modules provide LVTTL or LVCMOS control interfaces and Current Mode Logic CML compatible data interfaces to simplify external circuitry.

The transmitter and receiver devices are housed in MPO receptacled packages. Electrical connections to the devices are achieved by means of a pluggable 10 x 10 connector array.

Applications
• Datacom switch and router backplane connections
• Telecom switch and router backplane connections

Features
• RoHS Compliant
• Low cost per Gb/s
• High package density per Gb/s
• volt power supply for low power consumption
• 850 nm VCSEL array source
• 12 independent channels per module
• Separate transmitter and receiver modules
• Gbd data rate per channel
• Standard MPO ribbon fiber connector inter-
face
• Pluggable package
• micron multimode fiber operation:

Distance up to 100 m with 160 MHz.km fiber at Gbd Distance up to 200 m with 400 MHz.km fiber at Gbd
• Data I/O is CML compatible
• Control I/O is LVTTL compatible
• Manufactured in an ISO 9002 certified facility
Ordering Information

The HFBR-779BWZ and HFBR-789BZ products are available for production orders through the Avago Technologies Component Field Sales office.

HFBR-779BWZ No EMI Nose Shield

HFBR-789BZ No EMI Nose Shield

HFBR-779BEWZ With Extended EMI Nose Shield

HFBR-789BEZ With Extended EMI Nose Shield

HFBR-779BHWZ No EMI Nose Shield, No Heatsink

HFBR-789BHZ No EMI Nose Shield, No Heatsink

Patent -

Design Summary:

Design for low-cost, high-volume manufacturing

Avago Technologies’ parallel optics solution combines twelve Gbd channels into discrete transmitter and receiver modules providing a maximum aggregate data rate of 32 Gb/s. Moreover, these modules employ a heat sink for thermal management when used on high-density cards, have excellent EMI performance, and interface with the industry standard connector systems. They provide the most cost-effective high- density Gbd per inch solutions for high-data capacity applications. See Figure 1 for the transmitter and Figure 2 for the receiver block diagrams.

The HFBR-779BWZ transmitter and the HFBR-789BZ receiver modules provide very closely spaced, highspeed parallel data channels. Within these modules there will be some level of cross talk between channels. The cross talk within the modules will be exhibited as additional data jitter or sensitivity reduction compared to single-channel performance. Avago Technologies’ jitter and sensitivity specifications include cross talk penalties and thus represent real, achievable module performance.

Functional Description, Transmitter Section

The transmitter section, Figure 1, uses a 12-channel 850 nm VCSEL array as the optical source and a diffractive optical lens array to launch the beam of light into the fiber. The package and connector system are designed to allow repeatable coupling into standard 12-fiber ribbon cable. In addition, this module has been designed to be compliant with IEC 60825 Class 1 eye safety requirements. The optical output is controlled by a custom IC, which provides proper laser drive parameters and monitors drive current to ensure eye safety. An EEPROM and state machine are programmed to provide both ac and dc current drive to the laser to ensure correct modulation, eye diagram and extinction ratio over variations of temperature and power supply voltages.

Functional Description, Receiver Section

The receiver section, Figure 2, contains a 12-channel AlGaAs/ GaAs photodetector array, transimpedence preamplifier, filter, gain stages to amplify and buffer the signal, and a quantizer to shape the signal.

The Signal Detect function is designed to sense the proper optical output signal on each of the 12 channels. If loss of signal is detected on an individual channel, that channel output is squelched.

Packaging

The flexible electronic subassembly was designed to allow high-volume assembly and test of the VCSEL, PIN photo diode and supporting electronics prior to final assembly.

Regulatory Compliance

The overall equipment design into which the parallel optics module is mounted will determine the certification level. The module performance is offered as a figure of merit to assist the designer in considering their use in the equipment design.

Organization Recognition

See the Regulatory Compliance Table for a listing of the standards, standards associations and testing laboratories applicable to this product.

Electrostatic Discharge ESD

There are two design cases in which immunity to ESD damage is important.

The first case is during handling of the module prior to mounting it on the circuit board. It is important to use normal ESD handling precautions for ESD sensitive devices. These precautions include using grounded wrist straps, work benches, and floor mats in ESD controlled areas.

The second case to consider is static discharges to the exterior of the equipment chassis containing the module parts. To the extent that the MTO connector receptacle is exposed to the outside of the equipment chassis it may be subject to system level ESD test criteria that the equipment is intended to meet.

See the Regulatory Compliance Table for further details.
12 DIN+
12 DIN-

INPUT STAGE

LEVEL SHIFTER

SHUT DOWN

DRIVER

COMPARATOR

AMPLIFIER

D/A CONVERTER 12 VCSEL ARRAY

SERIAL CONTROL

CONTROLLER

I/O*
More datasheets: M3273 SL002 | M3273 SL001 | 7343-2USOC/S400-A7 | FDW2501NZ | HFBR-5320Z | 2253 | HFBR-779BHWZ | HFBR-779BEWZ | HFBR-779BWZ | HFBR-789BEZ


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Datasheet ID: HFBR-789BHZ 520296