Model 2808
110 Channel CATV Optical Receiver
DATASHEET | JANUARY 2012
FIBER OPTICS
Features
Wide Bandwidth of 40 to 860 MHz
Accommodates up to 110 Channels on
All Models.
Provides Excellent Picture Quality with a
CNR up to 54.5 dB, CSO of -63 dBc,
and CTB of -66 dBc.
RF Output up to +28 dBmV Allows a
Greater Number of Drops or Splits.
Wide Optical Input Range of -8 dBm to
+4.5 dBm Permits the Use of a Lower
Power Transmitter, Reducing System
Cost.
Built-in, Universal AC Power Supply
Frees System User from Bulky Wall-
Mount AC Adapters.
The Model 2808 110 Channel VSB/AM Fiber Optic Receiver provides CATV distribution
headend operators with an extensive array of features that offer a low-cost solution to
increase system performance. The receiver provides an RF output of +28 dBmV allowing
multiple RF splits without the use of an external RF amplifier. The Model 2808 is equipped
with a manual gain control that allows the user to adjust the RF output level for optimum
performance. Additionally, the receiver’s ability to operate over a wide optical input range of
-8 to +4.5 dBm allows for a variety of system designs without degrading performance. The
Model 2808 can transport up to 110 CATV channels using the entire high-frequency
bandwidth, or alternatively, it can transport up to 80 channels of standard analog CATV
signals while utilizing the remaining high-frequency bandwidth to transport 30 digital QAM
channels. The receiver includes a universal AC power supply, freeing the user from a bulky
wall-mount AC adapter. The streamline design of the Model 2808 offers the flexibility and
performance demanded by today’s broadband professional.
77/110 Channel CATV Receiver Part Numbers
Description
Fiberoptic Receiver, 1310/1550 nm, SC/APC Optical Connector
Fiberoptic Receiver, 1310/1550 nm, FC/APC Optical Connector
Part Number
2808R-SFSP
2808R-SFAP
| REV 2012.01
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.
Model 2808
110 Channel CATV Optical Receiver
DATASHEET | JANUARY 2012
FIBER OPTICS
RF & Optical Characteristics
Parameter
Optical Input Power
Operating Wavelength
Operating Wavelength
Bandwidth
Output RF Impedance
RF Output Level
RF Output Return Loss
Backreflection Tolerance
Required Fiber Bandwidth
Composite Second Order (CSO)
Composite Triple Beat (CTB)
Carrier-to-Noise Ratio
Min
-8.0
1290
1530
40
-
-
-
-
2,000
-
-
Typ
0.0
1310
1550
-
75
-
16
-
-
-63
-66
See Graph
Max
+4.5
1330
1571
860
-
+28
-
-50
-
-
-
Units
dBm
nm
nm
MHz
Ohms
dBmV
dB
dB
MHz
dBc
dBc
dB
Carrier-to-Noise Performance
System performance specifications indicated for use with 9/125
µm
singlemode fiber
.
Electrical Characteristics
Parameter
Power Supply Voltage
Power Supply Frequency
Power Dissipation
Min
-
50
-
Typ
120
60
8
Max
240
-
-
Units
V
AC
Hz
Watts
Physical Characteristics
Parameter
Weight
Dimensions
Min
-
-
Typ
1.1
0.5
8.45 x 2.95 x 1.12
215 x 75 x 29
Max
-
-
Units
lbs
kg
in
mm
Environmental Characteristics
Parameter
Operating Temperature Range
Storage Temperature Range
Humidity (RH, non-condensing)
Min
0
-20
5
Typ
-
-
-
Max
+50
+70
95
Units
O
O
C
C
%
| REV 2012.01
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.
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