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Vitesse Semiconductor Corporation
Vitesse Semiconductor Corporation

VSC7878 Datasheet Preview

VSC7878 Datasheet

10 Gbps Linear Transimpedance Amplifier

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VSC7878 pdf
VSC7878
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10 Gbps Linear Transimpedance Amplifier
VCCPD
BLOCK DIAGRAM:
VCC
VCCF
PDCAP
FILTER1
40 W
10 W
DOUTP
PD
IIN
TIA AGC
FILTER2
Average
Input Current
Monitor
IMON
GND1
GND2 DOUTN
FEATURES:
` Integrated AGC
` TO-46 can die size
` Integrated photo detector bias circuit
` Integrated photo current monitor
` Available in bare die
BENEFITS:
` Linear operation over the input power range of the device
` Enables high volume ROSA assembly
` Provides the best RF match to the photo detector and reduces the
component count inside the ROSA
` Used for fiber alignment and diagnostic capabilities
` Fully tested, known good die
APPLICATIONS:
` 10 G receiver optical sub-assemblies:
-9.983 Gbps SONET OC-192/SDH STM-64
-10.3 Gbps Ethernet
-10.5 Gbps Fibre Channel
-10.7 Gbps OTN G.709/G.975
-12.5 Gbps SONET with FEC
-DWDM SONET/SDH
` Transponders:
-XENPAK, X2, XPAK modules
-300-pin MSA modules
` Transceivers:
-XFP modules
SPECIFICATIONS:
` Supply voltage: 3.3 V +/- 10%
` Total harmonic distortion: 3% (typical)
` Differential output swing: 500 mV (linear operation)
` Bandwidth: 8 GHz (typical)
` Sensitivity: -18 dBm OMA (typical)
` Max input current for linear operation: 2 mA p-p (typical)
` Operating temperature from -30o to 105o C die backside
VPPD-01376
Revision 1.0



Vitesse Semiconductor Corporation
Vitesse Semiconductor Corporation

VSC7878 Datasheet Preview

VSC7878 Datasheet

10 Gbps Linear Transimpedance Amplifier

No Preview Available !

VSC7878 pdf
VSC7878
10 Gbps Linear Transimpedance Amplifier
GENERAL DESCRIPTION:
The VSC7878 is a 10.3 Gbps transimpedance amplifier (TIA)
designed for use in 10GBASE-LRM optical communication
networks. The VSC7878 is intended for use with a PIN or APD
photodetector and operates over a wide dynamic input range while
maintaining excellent linearity. The gain varies to maintain linear
amplification for input signals up to 2 mA maximum. A DC
compensation circuit reduces the penalty of low extinction ratio
signals. The VSC7878 also provides photodetector power supply
filter components and has a photocurrent monitor output.
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WIRE BONDING DIAGRAM:
VCCPD
3
GND
OUTP
2
VCC
4
PD Mounted on Capacitor
Capacitor
1 OUTN
VSC7878 Die
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


Part Number VSC7878
Description 10 Gbps Linear Transimpedance Amplifier
Maker Vitesse Semiconductor Corporation
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