XRT91L30ES Exar, XRT91L30ES Datasheet - Page 31

• Manufacturer Part Number: XRT91L30ES
• Description: Bus Transceivers
• Manufacturer: Exar

Specifications of XRT91L30ES

• Product Category: Bus Transceivers
• Rohs: yes

REV. 1.0.2
The 622.08 Mbps STS-12/STM-4 or 155.52 Mbps STS-3/STM-1 transmit serial output is avaliable on TXOP/N
pins. The transmit serial output can be AC or DC coupled to an optical module or electrical interface. A
simplified block diagram with SFP (internally AC coupled and terminated) is shown in
F
N
3.8
IGURE
OTE
: Some optical modules integrate AC coupling capacitors within the module. AC or DC coupling is largely specific to
system design and optical module of choice.
17. T
Transmit Serial Output Control
RANSMIT
STS-12/STM-4
STS-3/STM-1
Transceiver
XRT91L30
or
S
TXOP
TXON
ERIAL
O
UTPUT
I
NTERFACE BLOCK
STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
187R
Install close to 91L30
27
Internally AC coupled and
SFP, Optical Module
terminated into 100R
Optical Fiber
Figure
17.
XRT91L30