JGB-12LYAA1 JDS UNIPHASE, JGB-12LYAA1 Datasheet - Page 4

• Manufacturer Part Number: JGB-12LYAA1
• Manufacturer: JDS UNIPHASE

Specifications of JGB-12LYAA1

• Lead Free Status / RoHS Status: Not Compliant

JGB-12SYAA1
JGB-12LYAA1
Gigabit Ethernet GBIC
Block Diagram
Transmit Section
The input differential, serial data stream enters the AC Modulation section of the laser driver circuitry where it
modulates a semiconductor laser. The DC Drive maintains the laser at the correct preset power level. In addi-
tion, there are safety circuits in the DC Drive that will shut off the laser if a fault is detected.
Receive Section
The incoming, modulated optical signal is converted to an electrical signal by the photoreceiver. This electri-
cal signal is then amplified and converted to a differential, serial output data stream and delivered to the host.
A transition detector detects a minimum AC level of modulated light entering the photoreceiver. This signal is
provided to the host as a loss-of-signal status line.
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Fiber
Output
Optical
Fiber
Input
Photoreceiver
Laser
Receive Section
Transmit Section
Safety Control
DC Drive
Sense
Fault
and
LOS Detect
Post-amp
and
Modulation
AC
Tx_Disable
Electrical
+Rx_DAT
+Tx_DAT
-Tx_DAT
-Rx_DAT
Tx_Fault
Rx_LOS
(0)
(1)
(2)
GBIC.1250
03/06/02