VSC7967
PON Integrated Burst-mode Laser Driver and Limiting Amplifier
GENERAL DESCRIPTION:
The VSC7967 is a multirate 1.25 Gbps integrated
laser driver and 2.5 Gbps limiting amplifier for
Passive Optical Network applications optimized
VSC7967
modulation current, average power, and the limiting amplifier loss of
signal threshold. The VSC7967 is equipped with SFP-compliant fault
indicators, redundant disable control, Automatic Power Control,
temperature sensor, various signal monitors, and robust eye safety
features. The VSC7967 is available in a 5mm x 5mm 32-pin QFN
plastic package.
to reduce module cost. The device is intended to
drive distributed feedback (DFB) and Fabry Perot
(FP) lasers. A standard SPI port is provided for programming
integrated digital-to-analog converters for laser bias current,
BLOCK DIAGRAMS:
Laser Driver
BSRC
=
VCC
VCC
15
Ω
15
Ω
IMOD
OUT
OUTN
5
Ω
15
Ω
5
Ω
VCC
DATA
DATAN
IMOD
BSNK
BSNKN
BEN
MD
TX_FAULT
AOUT
IBIAS
IMD
VCC
10 k
Ω
10 k
Ω
Modulation and
Bias Control and Montoring
BENN_TX_DIS
Limiting Amplifier
DCRST[1:0]
DCRST1
RPK_STAGE
Peak
Detector
and
Control
DCRST[1:0]
DCRST2
LIN
100
Ω
VCC
LA_SQSRC
LA_SQFORCE
Output
Control
7 kΩ
LOSMON
LOS
LA_SQMON
50
Ω
50
Ω
LOUT
S1
S2
S3
S4
S5
LOUTN
Trademarks
TM
Vitesse, ASIC-Friendly, FibreTimer, TimeStream, Snoop Loop, Super FEC, FOCUSConnect, Meigs-II, Meigs-IIe, Lansing, Campbell-I, Barrington,
PaceMaker, HOVCAT48, HOVCAT48e, HOVCAT192, HOVCAT192e, Micro PHY, FOCUS32, FOCUS16, IQ2200, NexSAS, VersaCAT, GigaStream, HawX,
SparX, StaX, VstaX, SimpliPHY,VeriPHY, ActiPHY, XFP PRO, SFP PRO, Smart-LINK, OctalMAC, EQ Technology are trademarks in the United States and/or
other jurisdictions of Vitesse Semiconductor Corporation. All other trademarks or registered trademarks mentioned herein are the property of their respective
holders.
Copyright © 2006
Vitesse Semiconductor Corporation (“Vitesse”) retains the right to make changes to its products or specifications to improve performance, reliability or
manufacturability. All information in this document, including descriptions of features, functions, performance, technical specifications and availability, is
subject to change without notice at any time. While the information furnished herein is held to be accurate and reliable, no responsibility will be assumed by
Vitesse for its use. Furthermore, the information contained herein does not convey to the purchaser of microelectronic devices any license under the patent
right of any manufacturer.
741 Calle Plano
Camarillo, CA 93012, USA
Tel: +1 805.388.3700
Fax: +1 805.987.5896
www.vitesse.com
sales@vitesse.com
VITESSE [ VITESSE SEMICONDUCTOR CORPORATION ]
