AFBR-57E6APZ-HT Datasheet, PDF (1/18 Pages) Broadcom Corporation. – Industry standard Small Form Pluggable (SFP) package

AFBR-57E6APZ-HT
Multimode Small Form Factor Pluggable
Transceivers with LC Connector and DMI
for FDDI and Fast Ethernet
Data Sheet
Description
The AFBR-57E6APZ-HT Small Form Factor Pluggable LC
transceiver provides the system designer a product to
implement FDDI/Fast Ethernet networks with DMI physical
layers.
As an enhancement to the conventional SFP interface defined
in SFF-8074i, the AFBR-57E6APZ-HT is compatible to SFF-8472
(digital diagnostic interface for optical transceivers). Using the
2-wire serial interface defined in the SFF-8472 MSA, the
AFBR-57E6APZ-HT provides real time information on
temperature, LED bias current, LED average output power and
receiver average input power. The interface also adds the
ability to monitor the Receiver Loss of Signal (RX_LOS).
Transmitter
The transmitter contains a 1310-nm InGaAsP LED. This LED is
packaged in the optical subassembly of the transmitter. It is
driven by an integrated circuit which converts differential PECL
logic signals into an analog LED drive current. This current is
monitored by the digital diagnostic interface. The transmitter
light output power is inferred from this information.
The LED is switched off in case a static signal is present at the
PECL inputs.
Features
 RoHS compliant
 Lead free
 Industry standard Small Form Pluggable (SFP) package
 LC duplex connector optical interface
 Operates with 50/125 μm and 62.5/125 μm multimode
fiber
 Compatible with 100BASE-FX version of IEEE802.3u
 Single +3.3V power supply
 +3.3V TTL LOS output
 Squelched receiver outputs
 Manufactured in an ISO 9001 certified facility
 Operating temperature range: –40°C to 95°C
 Bail de-latch
 Hot plug capability
Applications
 Factory automation at Fast Ethernet speeds
 Fast Ethernet networking over multimode fiber
Receiver
The receiver uses an InGaAs PIN photodiode coupled to a
transimpedance pre- and postamplifier IC. It is packaged in the
optical subassembly of the receiver. The data output is
differential LVPECL. The LOS output is +3.3 V TTL as per
SFF-8074i. The PIN photodiode average current is monitored
by the digital diagnostic interface as a measure for input
optical power. Rx squelch is activated when a low input power
is detected.
Broadcom
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