JDS EPM745250FCA0 Forward and return path analog catv detector module Datasheet

COMMUNICATIONS COMPONENTS
Forward and Return Path Analog CATV Detector Modules
EPM 7xx Series
Key Features
• Electro-optical
- Low intermodulation distortion
- High responsivity
- Low back reflection
• Packaging
- Single mode 900 µm fiber with or without a connector
- Single mode 250 µm fiber without a connector
Applications
• AM fiber optic CATV receivers to
550 MHz (EPM 705) and 860 MHz
(EPM 745)
• Multi-channel fiber optic transmission
The EPM 7xx series are high quality analog photodetectors designed for forward
path (EPM 745) and return path (EPM 705) AM CATV applications. These
coaxial modules are optically aligned to optimize performance and balance the
parameters of responsivity, distortion and back reflection.
The photodetector die is fabricated with a proprietary InGaAs process in our
wafer fab and assembled into a hermetically-sealed package with an antireflectivecoated lens. A stainless steel bushing is used to actively couple the fiber to the package.
The fiber is reinforced with a rubber boot which relieves fiber bending stresses.
The EPM 7xx series can be produced without a connector or with a variety of
industry standard connectors. They are also available with a mounting bracket
which allows both vertical panel mounting and horizontal flush-to-board mounting.
NORTH AMERICA : 800 498-JDSU (5378)
WORLDWIDE : +800 5378-JDSU
WEBSITE : www.jdsu.com
FORWARD AND RETURN PATH
ANALOG CATV DETECTOR MODULES
2
Dimensions Diagram
(Specifications in mm unless otherwise noted.)
EPM 705 with Dual Mount Bracket
EPM 705 without Dual Mount Bracket
EPM 745 with Dual Mount Bracket
EPM 745 without Dual Mount Bracket
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ANALOG CATV DETECTOR MODULES
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Figure 1: EPM 705
Figure 2: EPM 745
Dark Current vs. Reverse Bias
Dark Current vs. Reverse Bias
1E-05
1E-08
85 ˚C
65 ˚C
1E-06
45 ˚C
Current (A)
Current (A)
1E-09
25 ˚C
1E-07
1E-08
1E-10
80 ˚C
1E-09
60 ˚C
1E-11
40 ˚C
1E-10
20 ˚C
0 ˚C
1E-12
1E-11
0
5
10
15
20
25
0
30
5
10
15
20
25
Reverse Voltage (V)
Reverse Voltage (V)
Figure 3: EPM 705
Figure 4: EPM 745
Capacitance vs. Reverse Bias
23˚C
Capacitance vs. Reverse Bias
23˚C
1.4
0.5
1.2
0.4
Capacitance (pF)
Capacitance (pF)
1.0
0.8
0.6
0.4
0.3
0.2
0.1
0.2
0.0
0.0
0
2
4
6
8
Reverse Voltage (V)
10
12
0
2
4
6
8
Reverse Voltage (V)
10
12
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ANALOG CATV DETECTOR MODULES
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Figure 5: EPM 745
Figure 6: EPM 745
IM2 vs. Input Optical Power
Bias = -12V; Mod. Index = 0.7
Typical Values
IM2 vs. Bias Voltage
Input Power = 0 dBm; Mod. Index = 0.7
Typical Values
-65
Intermodulation Distortion (dBc)
Intermodulation Distortion (dBc)
-65
-70
-75
-80
-85
-75
-80
-85
-90
-95
-90
-4
0
-2
4
2
6
8
Input Power (dBm)
1.0
0.8
0.6
0.4
0.2
0.0
1000
2
4
6
EPM 745 Equivalent Circuit
Typical Spectral Response
23 ˚C
800
0
1200
1400
Wavelength (nm)
8
10
Reverse Voltage (dBm)
Figure 7: EPM 705/745
Responsivity (A/W)
-70
1600
1800
12
14
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ANALOG CATV DETECTOR MODULES
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Specifications
(Temperature = 25°C, VR = 5 V unless noted. All specifications without connector.)
Parameter
Conditions
Responsivity
λ = 1310 nm
λ = 1550 nm
Distortion product IM2
Back reflection
Dark current
Capacitance3
Bandwidth4
Single mode fiber 900 µm
8.7/125 µm core/cladding
Minimum
Minimum
Maximum
Maximum
Maximum
Maximum
Typical
Minimum
Maximum
EPM 705
EPM 745
0.80 A/W
0.85 A/W
-70 dBc 1
-40 dB
5.0 nA
0.75 pF
2.0 GHz
1.0 m
1.5 m
0.85 A/W
0.90 A/W
-75 dBc 2
-45 dB
1.0 nA
0.35 pF
3.0 GHz
1.0 m
1.5 m
1. IM2 measured at VR = 12 V, Pavg = 0 dBm, MI = 0.7, Rload = 50 Ω, f1 + f2 = 324.25 MHz, f1 - f2 = 54.25 MHz.
2. IM2 measured at VR = 12 V, Pavg = 0 dBm, MI = 0.7, Rload = 50 Ω, f1 + f2 = 850.25 MHz, f1 - f2 = 50.25 MHz.
3. Measured with case grounded.
4. -3 dB point into a 50 Ω load.
Maximum Ratings
Parameter
Forward current1
Reverse current2
Reverse voltage
Power dissipation
Operating case temperature
Soldering temperature
Storage temperature
1. Under forward bias, current at which device may be damaged.
2. Under reverse bias, current at which device may be damaged.
Specification
Minimum
Minimum
Minimum
Minimum
Minimum
Maximum
Minimum
Minimum
Maximum
10 mA
10 mA
25 V
100 mW
-40°C
85°C
260°C
-40°C
85°C
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ANALOG CATV DETECTOR MODULES
Ordering Information
For more information on this or other products and their availability, please contact your local JDSU account manager or
JDSU directly at 1-800-498-JDSU (5378) in North America and +800-5378-JDSU worldwide or via e-mail at
[email protected].
Sample: EPM 705 900 FCA DMB
EPM 7 +
Code
05
45
Model
Return path CATV module
Forward path CATV module
+
+
Code
250
900
Buffer
250 µm buffer
900 µm buffer
Code
NC
FCS
FCA
SCS
SCA
Connector
No connector
FC/SPC connector
FC/APC connector
SC/SPC connector
SC/APC connector
+
Code
0
DMB
Bracket
No bracket
with dual mount bracket
Precautions for Use
ESD protection is imperative. Use of grounding straps, anti-static mats, and other standard ESD protective equipment is
recommended when handling or testing an InGaAs PIN or any other junction photodiode.
Soldering temperature of the leads should not exceed 260 °C for more than 10 seconds.
Fiber pigtails should be handled with less than 10 N pull and with a bending radius greater than 1 inch.
All statements, technical information and recommendations related to the products herein are based upon information believed to be
reliable or accurate. However, the accuracy or completeness thereof is not guaranteed, and no responsibility is assumed for any
inaccuracies. The user assumes all risks and liability whatsoever in connection with the use of a product or its application. JDSU reserves
the right to change at any time without notice the design, specifications, function, fit or form of its products described herein, including
withdrawal at any time of a product offered for sale herein. JDSU makes no representations that the products
herein are free from any intellectual property claims of others. Please contact JDSU for more information. JDSU and the JDSU logo are
trademarks of JDS Uniphase Corporation. Other trademarks are the property of their respective holders. ©2006 JDS Uniphase
Corporation. All rights reserved. 30137543 Rev. 001 05/06 EPM7XX.DS.CC.AE
NORTH AMERICA : 800 498-JDSU (5378)
WORLDWIDE : +800 5378-JDSU
WEBSITE : www.jdsu.com
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