EPM705900SCS0 [JDSU]

Forward and Return Path Analog CATV Detector Modules; 前向和返回路径模拟CATV探测器模块


型号：	EPM705900SCS0
厂家：	JDSU
描述：	Forward and Return Path Analog CATV Detector Modules 前向和返回路径模拟CATV探测器模块有线电视
文件：	总6页 (文件大小：261K)
中文：	中文翻译
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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

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.

• AM fiber optic CATV receivers to

550 MHz (EPM 705) and 860 MHz

(EPM 745)

• Multi-channel fiber optic transmission

The photodetector die is fabricated with a proprietary InGaAs process in our

wafer fab and assembled into a hermetically-sealed package with an antireflective-

coated 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

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

FORWARD AND RETURN PATH

ANALOG CATV DETECTOR MODULES

Figure 1: EPM 705

Figure 2: EPM 745

Dark Current vs. Reverse Bias

1E-05

85 ˚C

1E-08

1E-09

1E-10

1E-11

1E-12

65 ˚C

1E-06

45 ˚C

25 ˚C

1E-07

1E-08

1E-09

1E-10

1E-11

80 ˚C

60 ˚C

40 ˚C

20 ˚C

0 ˚C

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

1.2

1.0

0.8

0.6

0.4

0.2

0.0

0.5

0.4

0.3

0.2

0.1

0.0

Reverse Voltage (V)

FORWARD AND RETURN PATH

ANALOG CATV DETECTOR MODULES

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

-70

-75

-80

-85

-90

-65

-70

-75

-80

-85

-90

-95

-4

-2

Input Power (dBm)

Reverse Voltage (dBm)

Figure 7: EPM 705/745

EPM 745 Equivalent Circuit

Typical Spectral Response

23 ˚C

1.0

0.8

0.6

0.4

0.2

0.0

800

1000

1200

1400

1600

1800

Wavelength (nm)

FORWARD AND RETURN PATH

ANALOG CATV DETECTOR MODULES

Specifications

(Temperature = 25°C, VR = 5 V unless noted. All specifications without connector.)

Parameter

Conditions

EPM 705

EPM 745

Responsivity

λ = 1310 nm

λ = 1550 nm

Minimum

Maximum

Typical

0.80 A/W

0.85 A/W

-70 dBc ¹

-40 dB

0.85 A/W

0.90 A/W

-75 dBc ²

-45 dB

Distortion product IM²

Back reflection

Dark current

5.0 nA

1.0 nA

Capacitance³

0.75 pF

2.0 GHz

1.0 m

0.35 pF

3.0 GHz

1.0 m

Bandwidth⁴

Single mode fiber 900 µm

8.7/125 µm core/cladding

Minimum

Maximum

1.5 m

1. IM

2. IM

measured at V

= 12 V, Pavg = 0 dBm, MI = 0.7, Rload = 50 Ω, f

+ f

= 324.25 MHz, f

= 850.25 MHz, f

- f

= 54.25 MHz.

= 50.25 MHz.

measured at V

= 12 V, Pavg = 0 dBm, MI = 0.7, Rload = 50 Ω, f

3. Measured with case grounded.

4. -3 dB point into a 50 Ω load.

Maximum Ratings

Parameter

Specification

Forward current¹

Minimum

Maximum

Minimum

Maximum

10 mA

25 V

100 mW

-40°C

85°C

260°C

-40°C

85°C

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.

FORWARD AND RETURN PATH

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

customer.service@jdsu.com.

Sample: EPM 705 900 FCA DMB

EPM 7

Code

Model

Code

250

900

Buffer

250 µm buffer

900 µm buffer

Code

DMB

Bracket

No bracket

with dual mount bracket

Return path CATV module

Forward path CATV module

Code

Connector

No connector

FCS

FCA

SCS

SCA

FC/SPC connector

FC/APC connector

SC/SPC connector

SC/APC connector

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

NORTH AMERICA: 800 498-JDSU (5378)

WORLDWIDE: +800 5378-JDSU

WEBSITE: www.jdsu.com

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