vsc7878 Vitesse Semiconductor Corp, vsc7878 Datasheet
vsc7878
Manufacturer Part Number
vsc7878
Description
10 Gbps Linear Transimpedance Amplifier
Manufacturer
Vitesse Semiconductor Corp
Datasheet
1.VSC7878.pdf
(2 pages)
VSC7878
A P P L I C A T I O N S :
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F E A T U R E S :
10 G receiver optical sub-assemblies:
Transponders:
Transceivers:
Integrated AGC
TO-46 can die size
Integrated photo detector bias circuit
Integrated photo current monitor
Available in bare die
-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
-XENPAK, X2, XPAK modules
-300-pin MSA modules
-XFP modules
10 Gbps Linear Transimpedance Amplifier
PD
FILTER1
FILTER2
PDCAP
IIN
B E N E F I T S :
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S P E C I F I C A T I O N S :
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 -30
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
VCCPD
IMON
40 W
10 W
TIA
Input Current
GND1
VCC
Average
Monitor
B L O C K D I A G R A M :
VCCF
o
to 105
AGC
o
C die backside
GND2
DOUTP
DOUTN
V P P D - 0 1 3 7 6
R e v i s i o n 1 . 0
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vsc7878 Summary of contents
Page 1
... VSC7878 10 Gbps Linear Transimpedance Amplifier < Integrated AGC < TO-46 can die size < Integrated photo detector bias circuit < Integrated photo current monitor < Available in bare die < receiver optical sub-assemblies: -9.983 Gbps SONET OC-192/SDH STM-64 -10 ...
Page 2
... 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 ...