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Internal & External Reference Model
Model No. NJS8486 series
Model No.
NJS8486 series
NJS8487 series
NJS8488 series
Local Reference Type: Internal / External Reference
Local Stability: H-type, +/- 10 ppm (+/- 50 kHz typ.)
IF Output Interface: N-type / F-type, Female Connector
DC Power Input: IF Output Interface Connector
This 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.
Microwave Business Headquarters
- Specification -
C-band PLL LNB
RF Frequency
3.4 to 4.2 GHz
3.625 to 4.2 GHz
4.5 to 4.8 GHz
S-type, +/- 3 ppm (+/- 15 kHz typ.)
U-type, +/- 1 ppm (+/- 5 kHz typ.)
E-type, Same as External Reference Stability
RF Input Interface: Waveguide, CPR-229G
DC Power Voltage Range: +12 to +24 V
Copyright©
Nisshinbo Micro Devices Inc.
Microwave Business Headquarters
-Notice of Proprietary Information-
Date
Local Frequency
5.15 GHz
5.15 GHz
5.76 GHz
Title:
Datasheet of NJS8486 series
Reference No.:
DS-S8486
May 23, 2023
Discontinued
IF Frequency
950 to 1,750 MHz
950 to 1,525 MHz
960 to 1,260 MHz
Rev.:
Sheet:
17E
1 / 17

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Summary of Contents for Nisshinbo Micro Devices NJS8486 Series

  • Page 1 Microwave Business Headquarters -Notice of Proprietary Information- This 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.
  • Page 2 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 –...
  • Page 3 NJS8486 series Scope This 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 block downconverter with a phase locked local oscillator (5.15 GHz or 5.76 GHz) which is synchronized with internal high stability TCXO reference or external 10MHz reference.
  • Page 4 NJS8486 series Series Model Number Numbering System  Line-up  *Above Specifications are subject to change without notice. Reference No.: Rev.: Sheet: DS-S8486...
  • Page 5: Electrical Specifications

    NJS8486 series 1. Electrical Specifications Items Specifications 1.1. Absolute Maximum Rating [RF Input Power] -10 dBm (@ CW), +10 dBm (@ Pulse) [Supply Voltage] +28 V DC 1.2. Input RF Frequency Range <Model No. NJS8486> 3.4 to 4.2 GHz <Model No. NJS8487>...
  • Page 6 NJS8486 series Items Specifications 1.14. Requirement for External Reference (Only E-type Specified) [Input Port] IF Output Interface Connector (Combine reference with IF Signal) [Frequency] 10 MHz (sine-wave) [Input Power] -10 to 0 dBm @IF Output connector [Phase Noise] -135 dBc /Hz max. at 100 Hz -143 dBc /Hz max.
  • Page 7: Mechanical Specifications

    NJS8486 series 2. Mechanical Specifications Items Specifications 2.1. Input Waveguide Flange Waveguide, CPR-229G (with Groove) 2.2. IF Interface Connector <F-type Model> Coaxial Connector , F-type Female - 75 ohms <N-type Model> Coaxial Connector , N-type Female - 50 ohms 2.3.
  • Page 8: Outline Drawing

    NJS8486 series 4. Outline Drawing 4.1. F-type Model (e.g. NJS8486E) *Above Specifications are subject to change without notice. Reference No.: Rev.: Sheet: DS-S8486...
  • Page 9 NJS8486 series 4.2. N-type Model (e.g. NJS8486EN) *Above Specifications are subject to change without notice. Reference No.: Rev.: Sheet: DS-S8486...
  • Page 10 NJS8486 series 5. Label 5.1. Label Outline (e.g. NJS8487S) 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"...
  • Page 11 NJS8486 series 6. Package 6.1. Individual Package / Shipping Package *Above Specifications are subject to change without notice. Reference No.: Rev.: Sheet: DS-S8486...
  • Page 12 NJS8486 series 6.2. Enclosed Accessories O-ring Gasket, Qty (1), Full-type, for Waveguide Flange  Bolts, Qty (10), #1/4-20UNC L = 5/8”, Hexagon Head, SUS  Spring Washers, Qty (10), SUS  *Above Specifications are subject to change without notice. Reference No.: Rev.:...
  • Page 13: Handling Precautions

    NJS8486 series 7. Handling Precautions 7.1. DANGER This statement indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. Items Description Input Voltage Only input a DC voltage within the range indicated in specifications.
  • Page 14 NJS8486 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 by usage of self-amalgamating tape. Ensure the waveguide connection is properly assembled with the enclosed o-ring gasket as accessories.
  • Page 15 NJS8486 series 8. Instructions Manual 8.1. Descriptions This section describes the information of connectors and etc. Items Description Purpose RF Input Waveguide: WR-229 The LNB receives an RF signal of C - band (3.4 to Waveguide Flange: CPR-229G 4.2 GHz, 3.625 to 4.2 GHz, or 4.5 to 4.8 GHz) via this (with Groove) waveguide.
  • Page 16 NJS8486 series Step 2: Secure the OMT or the filter to the LNB by Flange Thickness Screw tightening the enclosed hexagon head bolts of OMT/Filter Length (#1/4-20UNC L = 5/8”) with 5.11 to 5.24 N⋅m 4 to 7 mm 1/2”...
  • Page 17 NJS8486 series 8.2.3. Start-up Start-up will be immediately performed with the following step: Step: Power on the modem and supply the DC voltage (and 10 MHz reference) from modem. Only input a DC voltage within the range indicated in specifications.

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