ETC NJS8477E/EN

External Reference Type Palapa C-band PLL LNB
MODEL NO. NJS8476E / EN
External Reference Type C-band PLL LNB
MODEL NO. NJS8477E / EN
External Reference Type Insat C-band PLL LNB
MODEL NO. NJS8478E / EN
<Description>
This specification defines the Low Noise Amplifier and block downconverter intended for the satellite data
communication downlink and VSAT system application in 3.400 to 4.200 GHz / Palapa C-band, 3.625 to 4.200 GHz /
C-band and 4.500 to 4.800 GHz / Insat C-band. These LNBs have a combined 3-stage HEMT amplifier and block
downconverter with Phase Locked Local Oscillator, which is constituted with a S-band VCO, Multiplier, Loop Filter, and
Reference Recovery VCXO providing low phase noise.
All specifications shall apply throughout the full range of the specified environmental conditions unless otherwise
specified.
<Line-Up>
Model No.
RF Frequency
NJS8476E / EN
NJS8477E / EN
NJS8478E / EN
3.400 to 4.200 GHz
3.625 to 4.200 GHz
4.500 to 4.800 GHz
Local
Frequency
5.15 GHz
5.15 GHz
5.76 GHz
Local Stability
IF Frequency
Application
Depends on
external reference
950 to 1,750 MHz
950 to 1,525 MHz
960 to 1,260 MHz
Palapa
Standard
Insat
<Specifications>
Item
Input Waveguide Flange
Output Connector
Noise Temperature (at 25 °C)
Conversion Gain
(at 25 °C)
Conversion Gain Variation
(at 25 °C)
Local Oscillator Frequency Stability
Phase Noise (SSB)
External Reference Input Frequency
External Reference Input Power
External Reference Input Port
External Reference Phase Noise
Copyright © 1999 New Japan Radio Co., Ltd.
Specifications
CPR-229
Type F-female (75 ohm) (NJS8476E / 77E / 78E)
Type N-female (50 ohm) (NJS8476EN / 77EN / 78EN)
35 K
59 dB min.
5 dB max. (NJS8477E / 78E)
8 dB max. (NJS8476E)
NJS8476E / EN : 5.15 GHz
NJS8477E / EN : 5.15 GHz
NJS8478E / EN : 5.76 GHz
-65 dBc/Hz at 100 Hz
-75 dBc/Hz at 1 kHz
-85 dBc/Hz at 10 kHz
-90 dBc/Hz at 100 kHz
*Depends on phase noise of external reference
10 MHz
-10 to 0 dBm (75 ohm or 50 ohm) (@IF output connector)
IF output connector (combine reference with IF signal)
-135 dBc/Hz at 100 Hz
-143 dBc/Hz at 1 Khz
-145 dBc/Hz at 10 kHz
(Input Condition)
Rev.06 External C/XC/Palapa C-PLL LNB
Item
Spurious
Power Requirement
Power Consumption
Operating Temperature Range
Storage Temperature Range
Specifications
-140 dBm max.
At input, fixed frequency spur, unrelated to test CW signal.
-55 dBc max.
With test CW signal -10 dBm IF output
(Measured at specified IF band ; 950 to 1,750 MHz or 950 to 1,525 MHz or
960 to 1,260 MHz)
+13.5 to +24V DC
400 mA max.
-40 to +60 °C
-40 to +80 °C
<Outline Drawing>
Unit: mm
New Japan Radio Co., Ltd.
Microwave Components Division
2-1-1, Fukuoka, Kamifukuoka Saitama
356-8510 JAPAN
Phone : +81-492-78-1270
Fax
: +81-492-78-1234
Web Site : http://www.njr.co.jp
Copyright © 1999 New Japan Radio Co., Ltd.
Rev.06 External C/XC/Palapa C-PLL LNB