Date

April 26, 2022

Released- Specification C-band PLL LNB

Internal & External Reference Model

Model No. NJS8496 series
Model No.

RF Frequency

Local Frequency

IF Frequency

NJS8496 series

3.4 to 4.2 GHz

5.15 GHz

950 to 1,750 MHz

NJS8497 series

3.625 to 4.2 GHz

5.15 GHz

950 to 1,525 MHz

NJS8498 series

4.5 to 4.8 GHz

5.76 GHz

960 to 1,260 MHz

Local Reference Type: Internal / External Reference
Local Stability:
H-type, +/- 10 ppm (+/- 50 kHz typ.)
S-type, +/- 3 ppm (+/- 15 kHz typ.)
U-type, +/- 1 ppm (+/- 5 kHz typ.)V-type, +/- 0.3 ppm (+/- 1.5 kHz typ.)
E-type, Same as External Reference Stability
RF Input Interface: Waveguide, CPR-229G
IF Output Interface: N-type / F-type, Female Connector
DC Power Input: IF Output Interface Connector
DC Power Voltage Range: +12 to +24 V

Copyright©
Nisshinbo Micro Devices Inc.

Microwave Business Headquarters-Notice of Proprietary InformationThis document and its contents are proprietary to Nisshinbo Micro Devices Inc.
This publication and its contents may not be reproduced or distributed for any other purpose
without the written permission of Nisshinbo Micro Devices Inc.
Those specifications listed in this document are subject to change at any time.
Title:

Microwave Business Headquarters

Datasheet of NJS8496 series

Reference No.:DS-S8496

Rev.:
01E

Sheet:
1 / 17

NJS8496 series
Caution
1. While Nisshinbo Micro Devices Inc. (NISD) continually strives to improve the quality and reliability of our products, failures will
occur in microwave products over time. For this reason, it is important that customers fulfill their responsibilities to ensure
designed-in safety – including failsafe functions, redundancy, and measures to prevent malfunctions and the spread of fire –in order to avoid injuries, accidents, or social repercussions resulting from the failure of any products related to satellite
communications on this website (hereinafter, “the product”). Customers must pay careful attention to ensuring the safety of
their equipment.
2. The product is designed and tested to function in accordance with its specifications. Do not use under conditions that deviate
from the product specifications included in the delivery specifications. NISD assume no responsibility and shall not be liable forany injuries, accidents, or social repercussions resulting from the product being in a poor or damaged state because it wasused under conditions that depart from the specifications.
3. The product is covered by a warranty for one year following delivery unless otherwise stipulated in the contract or delivery
conditions. In the event of a failure for which NISD are responsible occurring during the warranty period, NISD undertake torepair or replace the product free of charge. Note, however, that the warranty does not cover failures such as those listed here
(see bullets below), even if they occur within the warranty period. In addition, in the case of a product being repaired or
replaced by us, the starting date for the warranty period is still the original delivery date of the product.
 Failure due to the product being used in conditions other than those stipulated in the data sheet, specification sheet, etc.
 Failure due to modifications or repairs carried out by some entity other than our company
 Failure determined to be the result of unsuitable maintenance or replacement of a consumable item that requires due
maintenance Failure due to circumstances that were unforeseeable given the scientific /technological standards at the time of shipment
 Other failures due to external factors such as fire, earthquake, flood and power supply anomalies for which NISD are notresponsible
In addition, the product warranty is limited to the provision of repair services or replacement at no cost. It does not coversecondary damage (to equipment, business opportunities, profits, etc.) or any other damage that may have resulted fromfailure of the product.
4. The product must be handled appropriately to ensure its continued reliability. Since it can be damaged by the intrusion ofwater, dust, oil, chemicals, etc., it must be given appropriate protection. Even in the case of a product with an airtightconstruction, avoid using it in an environment that exceeds the stated levels of waterproofing/dustproofing. Also, be sure touse connectors and waveguides properly.
If replacement parts such as fans are included, proper maintenance is necessary. To maintain product performance andfunctionality, it is necessary to conduct inspections and maintenance at appropriate intervals and exchange replacement parts
when necessary. Improper inspections or maintenance may result in failure.
In addition, the warranty does not cover the use of the product in areas where salt damage can be expected or where there
is a substantial presence of corrosive gases such as Cl2, H2S, SO2, and NO2. If the product is to be used in such areas, at thetime of installation you must take appropriate steps to protect the product.
5. If the product is to be used with equipment/systems that must meet special quality and reliability standards (aerospaceequipment, medical equipment, power generation control equipment, automotive/railway transportation equipment, safety
equipment, disaster prevention and security equipment, etc.), please consult with our sales staff in advance.
6. Some products contain gallium arsenide (GaAs), classified as a harmful substance. To avoid danger, do not incinerate, crush,or chemically treat the product in such a way that gases or dust are released. When disposing of the product, comply with allapplicable laws and regulations and do not treat it as general industrial waste or household waste.
7. When exporting a product or technology, observe export laws and regulations such as those governing foreign exchange andforeign trade, and obtain any necessary licenses for export, service transactions, etc.
NISD request that you do not use our products or the technical data published on this website for developing weapons of mass
destruction or for any other military purposes or applications.
8. The product specifications in this document are subject to change without notice. If you are considering using a product,delivery specifications must first be settled.

＊Above Specifications are subject to change without notice.

Reference No.:DS-S8496

Rev.:

01E

Sheet:2

NJS8496 series
ScopeThis LNB is designed for the low noise amplifier and block downconverter intended for the satellite
communication data downlink application in C-band. It is combined a 3-stage HEMT amplifier and a blockdownconverter with a phase locked local oscillator (5.15 GHz or 5.76 GHz) which is synchronized withinternal high stability TCXO reference or external 10MHz reference.
The LNB receives an RF signal (C-band: 3.4 to 4.2 GHz, 3.625 to 4.2 GHz, or 4.5 to 4.8 GHz) as input,
downconverts from the RF signal to an IF signal (L-band: 950 to 1,750 MHz, 950 to 1,525 MHz, or 960 to
1,260 MHz), and outputs the IF signal. It is operated by +24 V DC power (range: +12 to +24 V) input.
The LNB comes in a single, weatherized housing rated for outdoor use, and has a CPR-229G waveguideflange as RF input and an either an N-type or F-type female connector as IF output.

Fig.1 Functional Block Diagram＊Above Specifications are subject to change without notice.

Reference No.:DS-S8496

Rev.:

01E

Sheet:3

NJS8496 series
Series Model Number

Numbering System

Reference & Local Stability Line-up(H-type Model) Internal Reference, +/- 10 ppm Local Stability(S-type Model) Internal Reference, +/- 3 ppm Local Stability(U-type Model) Internal Reference, +/- 1 ppm Local Stability(V-type Model) Internal Reference, +/- 0.3 ppm Local Stability(E-type Model) External Reference＊Above Specifications are subject to change without notice.

Reference No.:DS-S8496

Rev.:

01E

Sheet:4

NJS8496 seriesLine-up＊Above Specifications are subject to change without notice.

Reference No.:DS-S8496

Rev.:

01E

Sheet:5

NJS8496 series
1. Electrical Specifications
#
1.1.

Items

Specifications

Absolute Maximum Rating[RF Input Power]-10 dBm for CW Signal+10 dBm for Peak of Pulse Signal[Supply Voltage]
1.2.

+28 V DC

Input RF Frequency Range＜Model No. NJS8496＞

3.4 to 4.2 GHz＜Model No. NJS8497＞

3.625 to 4.2 GHz＜Model No. NJS8498＞

4.5 to 4.8 GHz

1.3.

Noise Temperature @ +25 ºC

1.4.

Output IF Frequency Range

15 K typ., 30 K max.

＜Model No. NJS8496＞

950 to 1,750 MHz＜Model No. NJS8497＞

950 to 1,525 MHz＜Model No. NJS8498＞

960 to 1,260 MHz

1.5.

Conversion Gain @ +25 ºC

59 dB min., 67 dB max.

1.6.

Conversion Gain Ripple @ +25 ºC

2 dBp-p max. at any 50 MHz segments.

1.7.

Conversion Gain Flatness over Frequency＜Model No. NJS8496＞

5 dBp-p max. at 800 MHz BW＜Model No. NJS8497＞

5 dBp-p max. at 575 MHz BW＜Model No. NJS8498＞

4 dBp-p max. at 300 MHz BW

1.8.

Conversion Gain Stability over Temperature

5 dB max.

1.9.

Output Power @ 1dB G.C.P. (P1dB)+3 dBm min.

1.10.

IM3 for two dBm input carriers-45 dBc max.

< Condition >Input Level: -75 dBm for each carriers
Separation Frequency: 10 MHz
1.11.

Output Intercept Point

1.12.

Local Oscillator Frequency+13 dBm min.

＜Model No. NJS8496＞

5.15 GHz nom.

＜Model No. NJS8497＞

5.15 GHz nom.

＜Model No. NJS8498＞

5.76 GHz nom.

＊Above Specifications are subject to change without notice.

Reference No.:DS-S8496

Rev.:

01E

Sheet:6

NJS8496 series
#
1.13.

Items

Specifications

Local Oscillator Stability including Temperature
Stability of -40 to +60 ºC, Initial Setting Error
and Aging Error

1.14.

＜H-type Model＞+/- 10 ppm max.

＜S-type Model＞+/- 3 ppm max.

＜U-type Model＞+/- 1 ppm max.

＜V-type Model＞+/- 0.3 ppm max.

＜E-type Model＞

Depend on External Reference

L.O. Phase Noise (SSB)-70 dBc/Hz typ., -59 dBc/Hz max. @ 100 Hz-80 dBc/Hz typ., -75 dBc/Hz max. @ 1 kHz-90 dBc/Hz typ., -85 dBc/Hz max. @ 10 kHz-100 dBc/Hz typ., -95 dBc/Hz max. @ 100 kHz-110 dBc /Hz typ., -105 dBc /Hz max. @ 1 MHz

1.15.

Requirement for External Reference(Only E-type Model Specified)[Input Port][Frequency][Input Power][Phase Noise]

IF Output Interface*Combine reference with IF Signal and DC Power
10 MHz (sine-wave)-10 to 0 dBm @IF Output connector-135 dBc /Hz max. at 100 Hz-143 dBc /Hz max. at 1 kHz-145 dBc /Hz max. at 10 kHz

1.16.

Spuriousa) -140 dBm max.
at input, Fixed frequency spur, unrelated totest CW signal. (Measured at specified IF
band: 950 to 1,750 MHz, 950 to 1,525 MHz,or 960 to 1,260 MHz)b) -55 dBc max.
with test CW signal -10 dBm IF output(Measured at specified IF band: 950 to 1,750
MHz, 950 to 1,525 MHz, or 960 to 1,260 MHz)

1.17.

Image Rejection

60 dB min.

1.18.

Input V.S.W.R.

2.5 : 1 typ.

1.19.

Output V.S.W.R.

2.0 : 1 max.

1.20.

DC Power Requirement[Input Port]IF Output Interface[Input Voltage]+12 to +24 VDC[Current Drain]

350 mA＊Above Specifications are subject to change without notice.

Reference No.:DS-S8496

Rev.:

01E

Sheet:7

NJS8496 series
2. Mechanical Specifications
#
2.1.

Items

Specifications

RF Input Interface

Waveguide, CPR-229G (with Grooved) and equivalent
Waveguide Flange: Type of Through hole (φ6.5 nom.)

2.2.

2.3.

IF Output Interface Connector<F-type Model>

F-type female connector, 75 ohms

<N-type Model>

N-type female connector, 50 ohms

Dimension & Housing

144.5 (L) × 98.4 (W) × 69.9 (H) mm
without interface connectors and screws

2.4.

Weight670 g

3. Environmental Specifications
#
3.1.

Items

Specifications

Temperature Range (ambient)[Operating]-40 to +60 ºC[Storage]-40 to +80 ºC

3.2.

Humidity

0 to 100 % RH

3.3.

Altitude15,000 feet (4,572 m)

3.4.

Vibration

5 G [49.03 m/s2] (3 axis, 50 Hz to 2 kHz)
1 mm p-p (3 axis, 5 to 50 Hz)

3.5.

Shock

30 G [294.20 m/s2] (3 axis)

3.6.

Waterproof / Dustproof (IP Code)

IP 67

3.7.

Regulations

EU Directive (CE Marking)RE - 2014/53/EU
EMC - 2014/30/EU
RoHS - 2011/65/EU + (EU)2015/863
Safety: EN62368-1, EN60950-22＊Above Specifications are subject to change without notice.

Reference No.:DS-S8496

Rev.:

01E

Sheet:8

NJS8496 series
4. Outline Drawing
4.1.

N-type Model (e.g. NJS8496EN)＊Above Specifications are subject to change without notice.

Reference No.:DS-S8496

Rev.:

01E

Sheet:9

NJS8496 series
4.2.

F-type Model (e.g. NJS8496HF)＊Above Specifications are subject to change without notice.

Reference No.:DS-S8496

Rev.:

01E

Sheet:10

NJS8496 series
5. Label
5.1.

Label Outline (e.g. NJS8496SF)

5.2.

Definitions

Serial Number (OSSSSSRYM) - ALPHANUMERIC (9 characters)
A 0 0 0 0 1 A 1 3
M: Prodctuon Month
Y: Prodctuon Year
R: Revision Number
SSSSS: Running Number
O: Overflow Number
O: Overflow Number - ALPHABET (1 character)"A" to "T" except "I" and "O", e.g.: A99999 ⇒ B00001"V" to "Z": Specified Numbers
SSSSS: Running Number - NUMBER (5 digits)"00001" to "99999"
R: Revision Number - ALPHABET (1 character)"A" to "Z" except "I", "O", and "U"
Y: Prodctuon Year - NUMBER (1 digits)"0" to "9", Last Digit of Calender Number
e.g.: 2021:"1", 2022:"2", 2023:"3"・・・・
M: Prodctuon Month - ALPHANUMERIC (9 characters)"1" to "9", "X" as October, "Y" as November, "Z" as December＊Above Specifications are subject to change without notice.

Reference No.:DS-S8496

Rev.:

01E

Sheet:11

NJS8496 series
6. Package
6.1.

Individual Package＊Above Specifications are subject to change without notice.

Reference No.:DS-S8496

Rev.:

01E

Sheet:12

NJS8496 series
6.2.

Shipping Package＊Above Specifications are subject to change without notice.

Reference No.:DS-S8496

Rev.:

01E

Sheet:13

NJS8496 series
6.3.

Enclosed Accessories
O-ring Gasket, Qty (1), Full-type, for Waveguide Flange

Bolts, Qty (10), M6 x 25, Cross Recessed Hexagon Head with Spring Washer and Flat Washer, SUS



Nuts, Qty (10), M6, Hexagon Nuts, SUS＊Above Specifications are subject to change without notice.

Reference No.:DS-S8496

Rev.:

01E

Sheet:14

NJS8496 series
7. Handling Precautions
7.1.

DANGER

This statement indicates an imminently hazardous situation which, if not avoided, will result indeath or serious injury.
Items
Input Voltage

Description
Only input a DC voltage within the range indicated in specifications.
Do operate with the input voltage range between +12 and +24 V DC power.
When applying higher voltage than specifications (+28 V as absolute maximum
rating), it will not only cause this unit failure, but it may also result in electric
shock and fire.

Disassembling

Do not disassemble the unit.
Disassembling will not only cause this unit failure, but it may also result inelectric shock.

7.2.

CAUTION

This statement indicates a potentially hazardous situation which, if not avoided, could result inminor or moderate injury. The statement may also be used to indicate other unsafe practices orrisks of property damage.
Items
Disposal

Description
This unit contains gallium arsenide (GaAs), classified as a harmful substance. To
avoid danger, do not incinerate, crush, or chemically treat the unit in such a waythat gases or dust are released.
When disposing the unit, comply with all applicable laws and regulations and do
not treat it as general industrial waste or household waste.

7.3.

NOTE

This statement is used to notify of installation, operation, or maintenance information that is
important, but not hazard-related.
Items

Description

TorqueDo not tighten with excessive torque when attaching screws/bolts and connectors.

Management

The following value as tighten torque is recommended.


Screws/Bolts - M6: 4.5 N・m ±0.45 N・m

IF Connector (N-type / F-type): 0.68 to 1.13 N⋅m＊Above Specifications are subject to change without notice.

Reference No.:DS-S8496

Rev.:

01E

Sheet:15

NJS8496 series
Items

Description

Weatherproof

The unit mounted in outdoor should be conducted with adequately weatherproof
procedure.
Do seal all of cable connection points from the connector to the cable sheath byusage of self-amalgamating tape.
Ensure the waveguide connection is properly assembled with the enclosed
o-ring gasket as accessories. The o-ring gasket is full-type and it is assumed toconnect the unit to a grooved waveguide flange.

Input Voltage

Do operate with the input voltage range between +12 and +24 V DC power.
Avoid applying more than the maximum voltage in this range (including ripple
voltage) under any conditions.

Input RF Signal

Do not supply the input RF signal over the absolute maximum rating indicated inPowerspecifications (-10 dBm @ CW / +10 dBm @ Pulse).

Input 10MHz

The 10 MHz reference signal should be supplied with the range between -10 and

Signal Power

0 dBm with sine-wave for correctly operation.
Do not supply the signal level of more than +13 dBm.

High

It may cause damage and/or degradation of reliability / lifetime to operate theTemperatureunit in a condition where the ambient temperature exceeds the maximum value,

Operation+60 °C, at operating temperature described in the specifications.

Vibration

When vibration and/or shock impact exceeding the conditions described in the/ Shock

specifications is applied, internal parts may be damaged.

Warranty

The unit is covered by a warranty for one(1) year following delivery unlessotherwise stipulated in the contract or delivery conditions.
Repairs may be possible under payment of charge even for the unit whose
warranty period has expired.
Opening, removing, disassembling and modifying any parts and components(including the product label, sealing tape and screws) without fan equipment
will immediately void the warranty.
In any case, the unit of invalid warranty cannot be repaired.

＊Above Specifications are subject to change without notice.

Reference No.:DS-S8496

Rev.:

01E

Sheet:16

NJS8496 series
8. Instructions Manual
8.1.

Descriptions
This section describes the information of connectors and etc.

Items

Description

PurposeRF Input

Waveguide: WR-229

The LNB receives an RF signal of C-band (3.4 to 4.2 GHz,

Waveguide

Flange: CPR-229G

3.625 to 4.2 GHz, or 4.5 to 4.8 GHz) via this waveguide.

(with Groove)
IF Output

F-type Female Coaxial

The LNB outputs an IF signal of L-band (950 to 1,750

Connector

Connector, 75 Ohms

MHz, 950 to 1,525 MHz or 960 to 1,260 MHz) andOR

requires to supply +12 to +24 V DC power via thisN-type Female Coaxial

connector.

Connector, 50 Ohms

For external reference models, a 10 MHz reference signal
must be supplied.

＊Above Specifications are subject to change without notice.

Reference No.:DS-S8496

Rev.:

01E

Sheet:
17