Ortel’s Model 755MM-U is a 1550 nm transmitter suitable for link
lengths of up to 10 km with 79 channel analog loading. The 755MM-U
may also be used up to 20 km with a lower channel load of 11 analog
channels and 40 QAM channels. The 75Ω
RF video input supports
frequencies up to 870 MHz. A 50Ω (75
Ω
available ) RF input supports
frequencies from 950 to 2600 MHz for FTTP, L-Band satellite, and
wireless applications.
Applications
Video signal distribution to
HFC CATV and FTTP nodes
Video overlay in passive
optical networks (PON)
Combines CATV + L Band
inputs into a single platform
Also integrated into the RF/Optical design are Ortel’s low chirp control
and noise suppression circuitry. Ortel’s patented pre distortion
technology provides outstanding performance with any of Ortel’s wide
range of cooled broadband lasers. These modules have optional dual
redundant power supplies and SNMP capability.
The performance specifications indicated below are subject to change.
Performance Highlights
Parameter
Operating Temperature Range
Wavelength (Multiple Options)
Optical Power
Frequency Response
CNR (10 km)
CNR (20 km)
CSO (10 km)
CSO (20 km)
CTB (10 km)
CTB (20 km)
SBS (10 km)
SBS (20 km)
RF Input Return Loss
Optical Return Loss
Min
0
1530
10
47
950
52
48
-
-
-
-
-
-
16
40
Typ
25
-
-
-
-
-
-
-
-
-
-
-
-
-
Max
50
1560
-
870
2600
-
-56
-56
-63
-63
17
12
Unit
°C
nm
dBm
MHz
MHz
dB
dBc
dBc
dBc
dBc
dBm
dBm
dB
dB
Features
Optical Spectrum Reshaping
Technology
Optimized RF integration of
predistorter, amplifiers and
laser
Dual redundant power
supplies
Supports SNMP protocol
Complete, efficient laser bias
and TEC control circuitry
OEM/ODM opportunities
available through Ortel
Wideband Transmitter
Digital monitoring and control
ITU Wavelengths
-
-
See following pages for complete specifications and operating/test conditions.
For more information on this and other products:
Contact Sales at Ortel 626-293-3400, or visit www.emcore.com.
755MM-U 1550 nm Transmitter
DATASHEET- OCT, 2006
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are
absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in
excess of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for
extended periods can adversely affect device reliability.
Parameter
Operating Temperature Range
Storage Case Temperature Range
RF Input Level
Symbol
T
OP
T
stg
-
Min.
0
-20
-
Max.
50
65
3
Unit
°
C
°
C
dBm
RF Characteristics
Parameter
Bandwidth
Frequency Response
RF Input Level
CNR
3
(10 km)
CNR
5
(20 km)
CSO
2
(10 km)
5
CSO (20 km)
CTB
2
(10 km)
5
CTB (20 km)
Input Impedance
75Ω Video Input Return Loss
75Ω Test Port Input Return Loss
50Ω Input Return Loss
4
1.Excludes tilt component.
2.CW carriers, 79 channel NTSC channel plan, 4 MHz noise bandwidth, -5 dBm received power, SMF-28 or equivalent.
3. CW carriers, 79 channel NTSC channel plan, 4 MHz noise bandwidth, 0 dBm received power, SMF-28 or equivalent
4. 75Ω option available
5. 11 channel NTSC channel plan with 40 channel QAM, 4 MHz noise bandwidth, 0 dBm received power, SMF-28 or equivalent
Condition
-
47-870 MHz
950-2600 MHz
79 channels analog
11 channel analog + 40 QAM
-
-
-
-
-
-
47 – 870 MHz RF Input
950-2600 MHz RF Input
47 to 870 MHz
47 to 870 MHz
950 to 2600 MHz
Min
47
-
-
-2.5
-5.8
52
48
-
-
-
-
-
-
16
16
10
Typ
-
-
-
-2
-5.3
-
-
-
-
-
-
75
4
50
-
-
-
Max
2600
1.5
3.5
1
Unit
MHz
dB
p-p
dB
p-p
dBm
dBm
dB
dB
dBc
dBc
dBc
dBc
Ohms
Ohms
dB
dB
dB
-1.5
-4.8
-
-
-56
-56
-63
-63
-
-
-
-
-
Optical Characteristics
Parameter
Optical Output Power
SBS Threshold
Side Mode Suppression Ratio
Optical Return Loss
1
Condition
-
10 km SMF-28
20 km SMF-28
-
APC style connector
Min
-
-
-
30
40
Typ
10
-
-
-
-
Max
-
17
12
-
-
Unit
dBm
dBm
dBm
dB
dB
1. In order to prevent reflection-induced distortion, the laser must be connected to an optical cable having a return loss of at least 55 dB for discrete
reflections and 30 dB for distributed reflections
2 of 5
755MM-U 1550 nm Transmitter
DATASHEET- OCT, 2006
Power Requirements
Parameter
AC Input Range
DC Input Range
Power
Min.
94
50
36
-
Max.
245
60
60
50
Unit
Vac
Hz
Vdc
W
Package Characteristics
Parameter
Height
Width
Depth
Weight
Dimension
1.75 (44), 1U
19 (483)
17.77(452) with fans
9.0 (4)
Unit
in. (mm.)
in. (mm.)
in. (mm.)
lbs. (kg.)
Part Number / Ordering Information
(Note: customization can be made available upon request)
755MM-U
-
-
-
- XX -
Channel Plan
A = NTSC 80-Ch
L Band Option
50 = 50 ohm
75 = 75 ohm
Options
Connectors
ITU Wavelengths
AC Power Cord
NA = N.AMERICA
UK = U.K. & IRE.
EU = EUROPE
EC = EC NEMA
JP = JAPAN
A = Dual PS + SNMP
SC = SC/APC
ee= 21, 1560.61nm
B = Dual PS, No SNMP
FC = FC/APC
:
C = Single PS, No SNMP EC = E2000/APC ee= 59, 1530.33 nm
3 of 5
755MM-U 1550 nm Transmitter
DATASHEET- OCT, 2006
ITU Wavelength Channel Designations
Channel
21
23
25
27
29
31
33
Wavelength
(nm)
1560.61
1558.98
1557.36
1555.75
1554.13
1552.52
1550.92
Channel
35
37
39
41
43
45
47
Wavelength
(nm)
1549.32
1547.72
1546.12
1544.53
1542.94
1541.35
1539.77
Channel
49
51
53
55
57
59
Wavelength
(nm)
1538.19
1536.61
1535.04
1533.47
1531.90
1530.33
4 of 5
755MM-U 1550 nm Transmitter
DATASHEET- OCT, 2006
Laser Safety Information
This product meets the appropriate standard in Title 21 of the Code of Federal Regulations (CFR). FDA/CDRH
Class IIIb laser product. This device has been classified with the FDA/CDRH under accession number 0220800.
Single-mode bulkhead receptacles with internal SC/APC connectors (standard).
Wavelength = 1.5
μm.
Maximum power = 30 mW.
Product is shipped with internal AC/DC and DC/DC power supply converters.
Caution: Use of controls, adjustments and procedures other than those specified herein may result in
hazardous laser radiation exposure.
Information contained herein is deemed to be reliable and accurate as of issue date. EMCORE reserves the right to change the design or specifications of
the product at any time without notice. EMCORE and the EMCORE logo are trademarks of EMCORE Corporation.
Sipeed MAIX is a project that is being crowdfunded on indiegogo. Its MCU uses the AI chip K210 with the domestic RISC-V core, which was very popular some time ago. [img]https://c1.iggcdn.com/indiegogo...
I remembered the slogan hung on the roadside that day: "Regulate parking fees, 20 cents for bicycles, 50 cents for electric vehicles." I remember once I parked a bicycle on the roadside of Donggou, an...
I feel that USB can be deep or shallow.The shallow oneI don't care about anything and just use the example program to imitate it. Maybe it can be used by chance.The deep one is unfathomableCan Xiang B...
Use MAX485 (single USB power supply) to convert the level and 485 to USB. The logic of sending and receiving data in the serial port assistant is: PC sends data to the microcontroller through the seri...
Designers use PSpice primarily to simulate analog circuits. However, it can also be used to simulate digital filters. The main components in a digital filter are delay elements, adders, and multipl...[Details]
In the early 1990s, portable phones were all the rage. With the rapid development of electronic technology, today's mobile phones can not only send emails and text messages, but also take photos, ch...[Details]
Ultrasonic tooth cleaning machines have been widely used in the medical field. Most ultrasonic tooth cleaning machines used at home and abroad now use analog oscillation circuits. There are the follow...[Details]
A biped robot joint constructed by pneumatic artificial muscles is introduced. The joint uses the flexible characteristics of pneumatic artificial muscles to effectively control the impact of the la...[Details]
Introduction
The market for wireless telemetry products is developing rapidly. Recently, the industry has also set off a revolution in wireless applications. Wireless telemetry technol...[Details]
As a branch of signal and information processing, digital signal processing has penetrated into various fields of scientific research, technological development, industrial production, national defens...[Details]
The particularity of portable medical devices determines that they should be user-friendly, must work in a sterile environment, and occupy little space and consume low energy.
At the same time, por...[Details]
In the field of software development, the most critical but also the most unpredictable phase is the debugging phase. There are many factors that play a role in the process of software debugging, a...[Details]
This issue will briefly introduce the test related to spectrum - occupied bandwidth.
Definition: Occupied bandwidth refers to the bandwidth corresponding to 99% of the total transmitted power, cent...[Details]
Due to the needs of medical development, in many cases, general thermometers can no longer meet the requirements of fast and accurate temperature measurement, such as measuring human body temperature ...[Details]
0 Introduction
Today, with the rapid development of electronic technology and the emergence of new multifunctional electric energy meters, the choice of memory in the electric energy m...[Details]
When using GPS for positioning, it will be affected by various factors. The factors that affect the accuracy of GPS positioning can be divided into the following four categories (see the figure be...[Details]
summary
Theoretically explains how to set up a PFC boost regulator using a current sensing transformer with the UCC3817 control IC.
1. Schematic
The schematic diagram is show...[Details]
A well-designed electronic load is not designed just for use in the lab; it should be carefully designed and built to test actual power systems. This is true for military portable systems, such as ...[Details]
1. Introduction
The UCC28051 reference design is a 100W offline AC/DC voltage converter with power factor correction (PFC). This power module design is intended to illustrate how to proper...[Details]
MicroPython Open Source section
京公网安备 11010802033920号
EEWORLD
