The L-Type/D-Type/S-Type/F-Type/N-Type 3998 Series
The 3998 series is a family of state-of-the-art high-performance 1550 nm externally-
modulated CATV fiber optic transmitters optimized for varying network applications.
Packaged in convenient 1 RU housing, this line of optical transmitters couples high optical
output powers, up to 11.0 dBm, with low optical linewidth resulting in unmatched
performance. The optical modulator, combined with proprietary predistortion circuitry,
provides superior CTB and CSO performance with SBS suppression levels of greater than
21 dBm. Advanced features such as built-in field adjustable SBS control and electronic
dispersion compensation allow these transmitters to be quickly optimized in the field for any
link or application without the need to procure specifically tuned transmitters. This affords
the system designer a level of flexibility previously unknown in the CATV market place.
The L-Type series are designed as a high-performance solution for applications where the
simultaneous transport of CATV and SAT-IF FM signals is required. The SAT-IF signals
can be applied anywhere in the 950 to 2800 MHz band.
The D-Type series are designed as a low cost, high-performance solution for applications
where the required fiber length is in the range of 20 to 50 kilometers. Advanced, high
power, DFB laser technology allows these transmitters to be fielded without the use of
EDFAs.
The S-Type series transmitters are designed to be the most versatile model within the 3998
series family. They can easily be configured to meet most HFC network solutions requiring
link lengths in the range of 50 to 70 kilometers with one EDFA as well as links utilizing
multiple EDFA’s.
The F-Type series transmitters are intended for use in FTTx and RFoG architecture
designs requiring high-quality transmission over varying transmission lengths and EDFA
output powers. These transmitters successfully support very high optical launch powers
while controlling the detrimental effects of Stimulated Brillouin Scattering (SBS), group
velocity dispersion (GVD), and self phase modulation (SPM).
The N-Type series transmitters are intended for use in node-splitting architecture designs
requiring cost effective DWDM transmission over medium length fiber distances.
Applications
High-Performance Supertrunking Links
High Power Distribution Networks
Redundant Ring Architectures
FTTx Networks
RFoG Applications
SAT-IF Transport
DWDM Node Splitting
Features
Single or Dual Optical Outputs
QAM Loading to 1003 MHz
Dual Power Supplies and Fans,
Redundant & Hot Swapplable
Front Panel RF Test Point
SNMP Control Interface
WEB GUI
Vacuum Fluorescent Status Display
OMI / RF Gain Adjustment
AGC Select: CW, Video, Manual (No
AGC)
Industry Leading Field Adjustable SBS
Suppression
Field Adjustable Electronic Dispersion
Compensation (EDC)
| REV 2013.10
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.
3998 Series 1550 nm
Externally-Modulated Transmitter
DATASHEET | OCTOBER 2013
FIBER OPTICS
Optical / Electrical Characteristics
L-Type
Property
Performance (note 1-8)
Specified Link Length
Channel Plan
Optical Output Power
Noise Bandwidth
SBS Suppression
CATV Carrier to Noise Ratio
CATV Composite Second Order
CATV Composite Triple Beat
CATV Composite Triple Beat
SAT-IF Carrier to Noise Ratio
SAT-IF Intermodulation Products
SAT-IF Spurious Products
Po (dBm)
BW (MHz)
(dBm)
CNR (dB)
CSO (dBc)
CTB (dBc)
CTB (dBc)
CNR (dB)
(dBc)
(dBc)
Units
3998-L01
L (km)
25
NTSC 80-Ch
8.5/8.5
4
15.0
51.0
-65
-65
-64
27
-35
-38
Models
3998-L02
3998-L03
25
PAL 60-Ch
8.5/8.5
5
15.0
51.0
-65
-65
-64
27
-35
-38
25
NTSC 110-ch
8.5/8.5
4
15.0
49.5
-65
-65
-64
27
-35
-38
Comments
3998-L04
25
PAL 89-Ch
8.5/8.5
5
15.0
49.5
-65
-65
-64
27
-35
-38
Min.
Min.
Max. Port 1
Max. @ +25°C
Max. @ 0 C to 50 C
Min.
Max. Port 1
Max.
o
o
With 36 QPSK carriers
from 950 to 2800 MHz
Min. 10 dBm version
avail. See Chart
D-Type
Property
Performance (note 1-7)
Specified Link Length
Channel Plan
Optical Output Power
Noise Bandwidth
SBS Suppression
Carrier to Noise Ratio
Composite Second Order
Composite Triple Beat
Composite Triple Beat
Po (dBm)
BW (MHz)
(dBm)
CNR (dB)
CSO (dBc)
CTB (dBc)
CTB (dBc)
Units
3998-D01
L (km)
40
NTSC 80-Ch
11.0
4
> 12.0
54.0
-65
-65
-64
Models
3998-D02
3998-D03
40
PAL 60-Ch
11.0
5
>12.0
54.0
-65
-65
-64
40
NTSC 110-ch
11.0
4
>12.0
51.0
-65
-65
-64
Comments
3998-D04
40
PAL 89-Ch
11.0
5
>12.0
51.0
-65
-65
-64
Min.
Min.
Max.
Max. @ +25°C
Max. @ 0 C to 50 C
o
o
Min.
| REV 2013.10
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.
3998 Series 1550 nm
Externally-Modulated Transmitter
DATASHEET | OCTOBER 2013
FIBER OPTICS
S-Type
Property
Performance
(Note 1-7)
Specified Link Length
Channel Plan
Optical Output Power
Noise Bandwidth
SBS Suppression
Carrier to Noise Ratio
Composite Second Order
Composite Triple Beat
Composite Triple Beat
Po (dBm)
BW (MHz)
(dBm)
CNR (dB)
CSO (dBc)
CTB (dBc)
CTB (dBc)
L (km)
Units
3998-
SA1
65
NTSC 80
7.0/ 7.0
4
16.0
53.0/ 53.0
-65/ -65
-65
-64
Models
3998-SA2
65
PAL 60
7.0/ 7.0
5
16.0
53.0/ 53.0
-65/ -65
-65
-64
Comments
3998-SA4
65
PAL 89
7.0/ 7.0
5
16.0
50.0/ 50.0
-65/ -65
-65
-64
3998-SA3
65
NTSC 110
7.0/ 7.0
4
16.0
50.0/ 50.0
-65/ -65
-65
-64
3998-SA5
65
42 CENELEC
7.0/ 7.0
5
16.0
53.0/ 53.0
-65/ -65
-65
-64
Min.
Min.
Max.
Max. @ +25°C
Max. @ 0 C to 50 C
o
o
Min. - Higher Powers
Available See Chart
F-Type
Property
Performance (Note 1-7)
Specified Link Length
Channel Plan
Optical Output Power
Noise Bandwidth
SBS Suppression
Carrier to Noise Ratio
Composite Second Order
Composite Triple Beat
Po (dBm)
BW (MHz)
(dBm)
CNR (dB)
CSO (dBc)
CTB (dBc)
Units
3998-F01
L (km)
20
NTSC 80-Ch
7.0/ 7.0
4
21.0
48.0
-58
-58
Models
3998-F02
3998-F03
20
PAL 60-Ch
7.0/ 7.0
5
21.0
48.0
-58
-58
20
NTSC 110-ch
7.0/ 7.0
4
21.0
45.0
-58
-58
Comments
3998-F04
20
PAL 89-Ch
7.0/ 7.0
5
21.0
45.0
-58
-58
Min.
Min.
Max.
Max.
Min.
N-Type
Property
Performance (Note 1-7)
Specified Link Length
Channel Plan
Optical Output Power
Noise Bandwidth
SBS Suppression
Carrier to Noise Ratio
Composite Second Order
Composite Triple Beat
Composite Triple Beat
Po (dBm)
BW (MHz)
(dBm)
CNR (dB)
CSO (dBc)
CTB (dBc)
CTB (dBc)
L (km)
Units
Models
3998-N01
3998-N02
40
NTSC 80-Ch
9.5
4
13.0
52.0
-62
-62
-61
40
PAL 60-Ch
9.5
5
13.0
52.0
-62
-62
-61
Min.
Min.
Max.
Min.
Comments
Max. @ +25°C
Max. @ 0 C to 50 C
o
o
Notes:
1. Unless stated otherwise all specifications apply over full temperature range with no digital loading.
2. Unless stated otherwise specifications apply for nominal RF input level as defined below, after a 30 minute stabilization
3. Specifications separated by a slash are port1 / port 2.
4. Units are tested per the Test / Link Configuration Table
5. Noise figure for the EDFA = 4.5 ~ 5.5 dB
6. Corning SMF-28 single mode fiber
7. Receiver responsivity is 0.95 mA/mW, Equivalent noise current is 7 pA/(Hz)1/2General and Mechanical Specifications
8. With 36 QPSK modulated SAT-IF signals between 950 --- 2800 MHz, 27 MHz IF bandwidth.
| REV 2013.10
period.
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.
3998 Series 1550 nm
Externally-Modulated Transmitter
DATASHEET | OCTOBER 2013
FIBER OPTICS
General and Mechanical Specifications
Property
Wavelength
Channel Plan
Optical Connector
Monitoring Interfaces
1555 +/-5 nm
Various – See Specification Tables
SC/APC
100 Base-T Ethernet (SNMP)
Rear Panel RS-232 interface
VFD Screen Front Panel Controls
0°C to 50°C
-20°C to 70°C
65W max
EMI:
EN50083-2:2006 (US CATV)
EN55022:2006 (US IT)
EN61000-3-2 (Harmonics)
EN61000-3-3 (Flicker)
FCC: Part 15, Subpart B, class “A” Unintentional
Radiators
ICES-003 (Canada)
AN/NZS 3548, Class A (Australia)
VCCI, Class A (Japan)
GR-2853-CORE
GR-2853-CORE
20% to 85%
(VAC)
(VDC)
Dimensions
Input Power Range
90 to 265 VAC, 50/60 Hz
+/- (36 – 72) VDC
19.0”W x 15.0”D x 1.72”H
17 +/-1 dBmV/ch 80 NTSC channels
15 +/-1 dBmV/ch 110 NTSC channels
18 +/-1 dBmV/ch 60 PAL channels
20 +/-1 dBmV/ch 42 CENELEC channels
16 +/-1 dBmV/ch 89 PAL channels
27 +/-1 dBmV/ch SAT-IF channels
Input Power Range
19 +/-2 dBmV/ch 80 NTSC channels
17 +/-2 dBmV/ch 110 NTSC channels
20 +/-2 dBmV/ch 60 PAL channels
18 +/-2 dBmV/ch 89 PAL channels
22 +/-2 dBmV/ch 42 CENELEC channels
29 +/-2 dBmV/ch SAT-IF channels
(width includes 19” front panel ears, depth
includes, connectors, fans & front panel) – see
drawing
Manual mode
Manual mode
Manual mode
Manual mode
Manual mode
Manual mode
CW mode
CW mode
CW mode
CW mode
CW mode
AGC mode
Safety:
FDA/CDRH Laser Safety Governed by Code of
Federal Regulations Title 21, Volume 8, Part
1040
IEC 60950-1
IEC 60728-11
Laser IEC 60825-1
CB Certification
In Shipping package
In Shipping package
Non-condensing
Requirement
Comments
Various Options + ITU-grid available – see
Model Number Information
Custom channel plans available
Other styles available
VFD- (Vacuum Fluorescent Display)
Operating Temperature
Storage Temperature
Power Consumption
Agency Listings
Transportation Vibration
Transportation Shock
Operating Humidity
Supply Range
| REV 2013.10
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.
3998 Series 1550 nm
Externally-Modulated Transmitter
DATASHEET | OCTOBER 2013
FIBER OPTICS
General and Mechanical Specifications
(continued)
Property
Front Panel RF Gain / OMI Adjustment Range
CATV Frequency Range
CATV Flatness
CATV Flatness – N-Type
CATV Input impedance
CATV Input Return Loss
CATV Front Panel RF Tap
CATV Front Panel RF Tap Flatness
SAT-IF Frequency Range
SAT-IF Flatness
SAT-IF Input impedance
SAT-IF Input Return Loss
SAT-IF Front Panel RF Tap
SAT-IF Front Panel RF Tap Flatness
Requirement
+2 / -4 dB from nominal setting
45 MHz – 1003 MHz
+/- 0.50 dB
+/- 0.75 dB
+/- 0.75 dB
75
Ω
16 dB min
-20 +/- 1 dB down from RF input
+/- 1 dB
950 MHz – 2800 MHz
+/- 2 dB
75
Ω
10 dB min
7 +/- 2.5 dBmV/Ch at 1% OMI/ch
+/- 1 dB
Comments
CATV Performance can vary slightly
45 MHz – 550 MHz
45 MHz – 1003 MHz
45 MHz – 1003 MHz N-Type
45 MHz – 1003 MHz
45 MHz – 1003 MHz
950 MHz – 2800 MHz
950 MHz – 2800 MHz
Test/Link Configuration
Property
L-Type
D-Type
S-Type
F-Type
N-Type
15 dBm
None
16 dBm
21 dBm
13 dBm
EDFA
25 Km
40 Km
65 Km
20 Km
40 Km
Link
1
Received Power
2
0.0 dBm at the receiver
0.0 dBm at the receiver
0.0 dBm at the receiver
-5.5 dBm at the receiver
0.0 dBm at the receiver
| REV 2013.10
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.
It is said that STM32 has a 32-bit second counter, which can be accumulated as long as the battery is sufficient. The device I use is the STM32F4 MCU. Can this 32-bit register be read?
Also, the calen...
Fairchild online design tool is now available . Try it in person. Power Supply WebDesigner design tool (one click to use)Fairchild Design Tools Team recently launched an online design tool: Power Supp...
Now I have ported UCOS 2.76 on S3C2440, but a very strange problem occurred when establishing multi-tasks main(){ OSInit(); OSTaskCreate(Task_B, (void *)0, &Task_B_Stack[TSK_STK_SIZE-1],2); OSTaskCrea...
[i=s]This post was last edited by bobde163 on 2015-1-24 13:11[/i] [size=4]Today I casually opened the CubeMX software to check for updates. I first checked the version number and found that the firmwa...
The problem of dynamic sealing of equipment always exists with the operation of the equipment. Today, we have specially sorted out the various commonly used sealing forms, usage scope and character...[Details]
Common Mode Semiconductor has officially released its latest generation of power management ICs—the GM6506 series. This fully integrated high-frequency synchronous rectification step-down p...[Details]
With the rapid development of electric vehicles in my country, people are beginning to pay attention to the issue of radiation from electric vehicles. We all know that mobile phones emit radiation,...[Details]
With the continuous development of the industrial automation industry, we are seeing an increasing number of intelligent devices using flexible, efficient, and precise robotic arms to p...[Details]
Learned the following information.
Customer product: industrial computer motherboard
Glue application area: CPU/BGA filling
Glue color requirements: black or t...[Details]
My career has been closely tied to the semiconductor industry. From product management to content marketing, I've provided countless forecasts and predictions across a variety of roles. Whethe...[Details]
Tools/Materials
Yitong Chuanglian MODBUS to PROFIBUS Gateway YT-PB-03
Siemens s7-300
This article describes how to configure the YT-PB-03 MODBUS to PROFIBUS gat...[Details]
Common methods for troubleshooting roller press bearing wear include repair welding, thermal spraying, brush plating, and scrapping and replacement. However, these methods are often subject to asse...[Details]
From time to time, I see some audiophiles spending a lot of money or a lot of time to DIY speakers, but the results are not what they want. Below I list some of the small experiences I summarized b...[Details]
introduction
In today's busy society, people experience chronic high stress, which in turn poses a significant threat to our health. Therefore, effectively relieving stress has become a pr...[Details]
1. Introduction
In 2015, Apple's new MacBook and Apple Watch both featured force-sensing technology, which Apple calls Force Touch. Each time a user presses the touchpad, the device not only p...[Details]
On August 20, Huawei Device announced that the all-new M7 is the first to feature an in-cabin laser vision solution. This solution offers enhanced active safety capabilities compared to primary vis...[Details]
The Radxa Cubie A7A is a single-board computer (SBC) powered by the Allwinner A733 octa-core Cortex-A76/A55 SoC, equipped with a 3 TOPS AI accelerator and up to 16GB of LPDDR5 memory.
Fo...[Details]
The transition to SDVs (software-defined vehicles) involves more than just replacing parts; rather, it involves the organic connection of various elements, from internal vehicle systems to ext...[Details]
August 18, 2025—
Advantech, a global leader in IoT intelligent systems and embedded platforms, today announced a collaboration with LitePoint, a global provider of wireless test solutions, to d...[Details]
stm32/stm8
京公网安备 11010802033920号
EEWORLD
