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 online that fast charging is harmful to the battery, and charging with too low or too high a charge is bad for the battery. Do you think this makes sense? How can we better protect the batt...
[i=s]This post was last edited by sanhuasr on 2018-7-16 17:55[/i] The system block diagram is as follows,com is the shielding line of the pressure sensor. The GND corresponding to the amplifier VCC an...
Application of frequency multiplier circuit (MC1596)Author: admin Source: unknown Added date: 2006-5-9 0When two carriers with the same frequency are input, MC1596 can be used as a frequency multiplie...
Introducing programming skills of VB6.0 object-oriented programming language in communication [[i] This post was last edited by taojl2006 on 2008-11-25 08:43[/i]]...
Dopod phones now use Qualcomm CPUs. After checking Microsoft's CE information, it seems that the generated installation program has a lot to do with the CPU model of the phone, unlike desktop computer...
From being a global leader to losing the market, Korean battery manufacturers have always wanted to regain the lost market and dignity, but facing Chinese battery manufacturers represented by CAT...[Details]
PV DC fuses are safety devices used to protect PV panels, inverters, and DC loads. To ensure their safety and reliability, they must be UL248 certified.
Before applying for UL248 certifi...[Details]
Nios II is a configurable 16-/32-bit RISC processor. Combined with a rich set of peripheral-specific instructions and hardware acceleration units, it provides a highly flexible and powerful SOPC sy...[Details]
Electric vehicles are currently gaining momentum, but this is just a facade. Fuel-powered vehicles remain unchallenged. While electric vehicles boast unique advantages in environmental emissions an...[Details]
Limited vocabulary recognition
According to the number of characters, words or short sentences in the vocabulary, it can be roughly divided into: less than 100 is small vocabulary; 100-1000 is...[Details]
White light LEDs are voltage-sensitive devices. In actual operation, their upper limit is 20mA. However, the current often increases due to various reasons during use. If no protective measures are...[Details]
According to foreign media reports, researchers at the University of Surrey have developed an artificial intelligence system that can accurately locate the location of equipment in densely populate...[Details]
With the rapid advancement of automation technology, collaboration between robots is no longer just science fiction. Imagine dozens of machines moving goods in a warehouse without interfering with ...[Details]
The Automotive Testing and Quality Assurance Expo (ATE 2025) will open on August 27th. At the expo, Rohde & Schwarz (R&S) will showcase six automotive testing solutions, themed "Intelligently Drivi...[Details]
On August 22, the National Energy Administration released the latest data, showing that by the end of July 2025, China's total number of electric vehicle charging infrastructure will reach 16.696 m...[Details]
In daily life, power transformers have different functions and uses due to different usage scenarios. The most common ones can be divided into: control transformers, isolation transformers, rectifi...[Details]
Teletrac Navman has launched the Multi IQ dashcam, a cloud-based solution designed for large commercial vehicle operators. It connects up to five cameras to cover the vehicle's interior, sides, and...[Details]
HTTP is the abbreviation of Hypertext Transfer Protocol. It is an application protocol based on TCP/IP communication protocol used to transmit HTML and image files. It is an application-level objec...[Details]
As the range of electric vehicles continues to increase, driving electric vehicles for long-distance travel has become a trend. For high-speed travel, how much impact will high-speed driving of ele...[Details]
Shanghai, China, August 21, 2025 –
Toshiba Electronic Devices & Storage Corporation (“Toshiba”) today announced the launch of the TLX9161T
, an automotive photorelay in a compact SO12L-T pa...[Details]
Power technology
京公网安备 11010802033920号
EEWORLD
