VSC7965 [VITESSE]
PON Integrated 155 Mbps to 1.25 Gbps Burst-mode Laser Driver and Limiting Amplifier; PON集成的155 Mbps到1.25 Gbps的突发模式激光驱动器和限幅放大器
| 型号： | VSC7965 |
| 厂家： | 
VITESSE SEMICONDUCTOR CORPORATION |
| 描述： | PON Integrated 155 Mbps to 1.25 Gbps Burst-mode Laser Driver and Limiting Amplifier |
| 文件： | 总2页 (文件大小：1049K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TRANSPORT PHYSICAL LAYER
VSC7965
PON Integrated 155 Mbps to 1.25 Gbps Burst-mode Laser Driver and Limiting Amplifier
A P P L I C A T I O N S :
BPON, GE-PON, GPON burst-mode laser driver
S P E C I F I C A T I O N S :
Package size: 5 mm x 5 mm QFN
VSC7965
Maximum modulation = 80 mA
Typical core power = 330 mW
Operating temperature range = -40 °C to 100 °C
F E A T U R E S :
B E N E F I T S :
APC loop requires no initialization phase
Laser driver is ready to transmit upon power up
Allows the VSC7965 to be used in both PON and SFP module
VSC7965 meets the specification for BPON, GE-PON, and GPON
solutions
Allows PON module to interoperate with multiple upstream devices
Burst enable input supports LVPECL, LVDS, and LVTTL output levels
Selectable resistance on monitor diode input
Laser driver crossing point control
Improves accuracy of the monitor diode input by allowing the user to
select the resistance and capacitance in the input
Enables the user to adjust the level of the crossing point on the laser
driver output
Built-in eye safety support
No external components are required to meet IEC-60825 eye safety
specifications
A P P L I C A T I O N D I A G R A M :
BPON ONU Module
VSC7965
MON_SEL
Triplexor
TIA at
Limiting Amplifier
1490 nm
Laser
Burst-mode Laser Driver
Fault and
at
1310 nm
Analog
Video
Downstream Video at 1555 nm
Control Logic
SPI
Downstream Receive Data at 1490 nm
Upstream Data at 1310 nm
Receive
at
Connector
Analog MUX
1555 nm
ADC
Microcontroller
CATV Receive
Video Amplifier
VPPD-01136
Revision 1.1
VSC7965
PON Integrated Burst-mode Laser Driver and Limiting Amplifier
G E N E R A L D E S C R I P T I O N :
The VSC7965 is a multirate 1.25 Gbps integrated
laser driver and limiting amplifier for Passive
Optical Network applications optimized to reduce
module cost. The device is intended to drive
distributed feedback (DFB) and Fabry Perot (FP)
current, average power, and the limiting amplifier loss of signal
threshold. The VSC7965 is equipped with SFP-compliant fault
indicators, redundant disable control, Automatic Power Control,
temperature sensor, various signal monitors, and robust eye safety
features. The VSC7965 is available in a 5mm x 5mm 32-pin QFN
plastic package.
VSC7965
lasers. A standard SPI port is provided for programming integrated
digital-to-analog converters for laser bias current, modulation
B L O C K D I A G R A M S :
BSRC
= V
CC
Laser Driver
V
V
CC
CC
15
ꢀ
15
ꢀ
I
5 ꢀ
MOD
OUT
OUTN
15
ꢀ
5
ꢀ
DATA
DATAN
I
MOD
I
BIAS
BSNK
BSNKN
MD
I
BEN
MD
Modulation and
Bias Control and Montoring
V
CC
TX_FAULT
AOUT
BENN_TX_DIS
10 kꢀ
10 k
ꢀ
V
CC
Limiting Amplifier
LA_SQSRC
DCRST[1:0]
7 kꢀ
LA_SQFORCE
LOSMON
Output
Control
DCRST1
LOS
Peak
Detector
and
RPK_STAGE
LA_SQMON
Control
DCRST[1:0]
DCRST2
50
ꢀ
50
ꢀ
LIN
LOUT
100
ꢀ
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.
741 Calle Plano
Camarillo, CA 93012, USA
Tel: +1 805.388.3700
Fax: +1 805.987.5896
www.vitesse.com
Copyright © 2005–2006
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.
sales@vitesse.com
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