NF SA-420F5 Bedienungsanleitung

NF Corporation

LOW NOISE FET DIFFERENTIAL AMPLIFIER

SA-420F5

INSTRUCTION MANUAL

DA00062389-001

LOW NOISE FET DIFFERENTIAL AMPLIFIER

SA-420F5

INSTRUCTION MANUAL

i SA-420F5

――― Preface ―――

Thank you for purchasing the SA-420F5 low noise differential FET amplifier.

Please read the "Safety Information" on the next page first to ensure the product is used

in a correct and safe manner.

●Alert symbols in this manual

This manual uses the following alert symbols. The instructions next to these symbols must be

carefully obeyed to ensure the equipment operator’s safety and prevent damage to equipment.

This contains information for avoiding electric shock and other risks when handling the

equipment that could result in death or bodily injury to the operator.

This contains information for avoiding risks when handling the equipment that could result

in minor or moderate injury to the operator or damage to property.

●This manual consists of the following chapters.

1. Outline

This chapter gives an overview and describes the features and applications of this product and

the simple operating principle of the product.

2. Preparation before Use

This chapter describes important preparations to be made before installation and operation.

3. Panel Features and Basic Operations

This chapter explains the basic operations of the panels.

4. Maintenance

This chapter describes a method for simply inspecting operation.

5. Specifications

This chapter gives specifications (functions and performance).

6. Reference Data

This chapter shows the general electrical characteristics of a normal SA-420F5.

CAUTION

WARNING

ii SA-420F5

────Safety Information────

To ensure safe use, be sure to observe the following safety precautions.

NF Corporation shall not be held liable for damages that arise from a failure to observe these safety

precautions or warnings or cautions in the instruction manual.

Be sure to observe the information of the instruction manual.

The instruction manual contains information for the safe operation of the product.

Be sure to read the information first before using the product.

All the warnings in the instruction manual are intended for preventing risks that may lead to

serious accidents. Ensure to obey them.

Be sure to ground the product.

To prevent electric shock, the enclosure must be connected to an electrical ground.

Check the power supply voltage.

This product operates on the power supply voltage indicated in the instruction manual.

Prior to connecting the power supply, check that the voltage of the power supply matches the

rated power supply of the product.

If you notice anything strange

If this product emits smoke, an unusual smell, or abnormal noise, immediately power it off and

stop using it.

If such an anomaly occurs, prevent anyone from using this product until it has been repaired, and

immediately report the problem to NF Corporation or one of our representatives.

Do not operate in an explosive atmosphere.

An explosion or other such hazard may result.

Do not remove the cover.

The product may contain high-voltage parts. Never remove the cover.

Even when the inside of this product needs to be inspected, do not touch the inside. All such

inspections are to be performed by service technicians designated by NF Corporation.

Do not modify the product.

Never modify the product. Modification to the product may pose a new risk. We may refuse the

repair of a modified product.

Ensure that water does not get into this product.

Using the product in wet condition may cause electric shock and fire. When water etc. get into the

product, immediately power it off, and contact NF Corporation or one of our representatives.

If lightning occurs, power off and disconnect this product.

A lightning may cause an electric shock, a fire and a failure.

iii SA-420F5

Safety Information

WARNING

Electromagnetic compatibility

This product is a CISPR 11 Group 1 Class A compliant device. This product may cause

interference if used in residential areas. Such use must be avoided unless the user takes special

measures to reduce electromagnetic emissions to prevent interference to the reception of radio

and television broadcasts.

●Safety symbols

Caution, refer to instruction manual

This notifies the user of potential hazards and indicates that he/she must refer to the

instruction manual.

Caution, possibility of electric shock

This indicates that an electric shock may occur under specific conditions.

Protective earth ground terminal

This indicates that the terminal needs to be grounded in order to prevent electric shock

accidents.

Before operating the product, ensure to connect this terminal to an earth ground.

Warning

This contains information to avoid risks in equipment handling that could

result in loss of life or bodily injury.

Caution

This contains information to avoid risks in equipment handling that could

result in minor or moderate injury to person or damage to property or the

equipment.

●Other symbols

This indicates that the terminal or the outer conductor of the connector is connected to

the enclosure.

This indicates that the terminal or the outer conductor of the connector is connected to

the signal ground.

This indicates that the terminal or the outer conductor of the connector is isolated from

the enclosure.

It indicates, however, that the difference of the potential from the ground potential is

restricted to 42 Vpk or less for safety (this product is used grounded so the enclosure

potential and ground potential are equal).

Waste disposal

For environmental protection, do not discard this product in domestic household waste. This

product shall be disposed of through an appropriate industrial waste disposer.

CAUTION

iv SA-420F5

Contents

Page

Preface i

Safety Information ii

1. Outline................................................................................................................... 1-1

1.1 Overview................................................................................................................ 1-1

1.2 Features................................................................................................................. 1-1

1.3 Operating Principle .............................................................................................. 1-2

2. Preparation before Use......................................................................................... 2-1

2.1 Check Appearance and Accessories...................................................................... 2-1

2.2 Conditions for Installation Location.................................................................... 2-2

2.3 Power Supply ........................................................................................................ 2-2

2.4 Connecting with Low Noise DC Power Supply LP Series ..................................2-3

2.5 Connecting to Power Supply other than LP Series............................................. 2-4

3. Panel Features and Basic Operations ................................................................. 3-1

3.1 Panel Component Names and Functions ............................................................ 3-1

3.2 Input Connection and Installation ...................................................................... 3-3

3.3 Output Connection................................................................................................3-4

3.4 Warm-up Time ...................................................................................................... 3-4

3.5 Used for Single-Ended Input................................................................................3-5

4. Maintenance.......................................................................................................... 4-1

4.1 Before Maintenance .............................................................................................. 4-1

4.2 Consumption Current with No Signal ................................................................. 4-2

4.3 Non-Inverting Input Operation ...........................................................................4-2

4.4 Inverting Input Operation .......................................................................................... 4-4

5. Specifications ........................................................................................................ 5-1

5.1 Non-destructive Maximum Ratings..................................................................... 5-1

5.2 Electrical Characteristics ..................................................................................... 5-1

5.2.1 Input ...............................................................................................................5-1

5.2.2 Output ............................................................................................................5-2

5.2.3 Amplifier ........................................................................................................ 5-2

5.2.4 Power supply.................................................................................................. 5-2

5.3 General .................................................................................................................. 5-3

5.4 External View........................................................................................................ 5-4

5.5 External Dimensions of Bottom Plate ................................................................. 5-5

6. Reference Data...................................................................................................... 6-1

6.1 Reference Data...................................................................................................... 6-1

6.2 Equivalent Input Noise Voltage Density .............................................................6-1

6.3 Noise Figure Frequency Characteristic (for 50 Ω system) ................................. 6-2

6.4 Voltage Gain Frequency Characteristic............................................................... 6-2

6.5 Output VSWR Frequency Characteristic ............................................................ 6-3

v SA-420F5

6.6 Reverse Transfer Gain Frequency Characteristic .............................................. 6-3

WARRANTY

vi SA-420F5

Figures and Tables

Page

Figure 1-1 Block diagram ....................................................................................................1-2

Figure 2-1 Connecting to LP Series power supply .................................................................. 2-3

Figure 2-2 Connecting to a power supply other than dedicated power supply ........................... 2-4

Figure 3-1 Front and rear panel views ................................................................................... 3-2

Figure 3-2 Time until gain is stabilized after power is activated .............................................. 3-4

Figure 4-1 Connection diagram for non-inverting input operation ........................................... 4-2

Figure 4-2 Non-inverting input voltage waveforms and output voltage waveforms ................... 4-3

Figure 4-3 Connection diagram for inverting input operation ..................................................4-4

Figure 4-4 Inverting input voltage waveforms and output voltage waveforms...........................4-5

Figure 5-1 External view .....................................................................................................5-4

Figure 5-2 External dimensions of bottom plate.....................................................................5-5

Figure 6-1 Equivalent input noise voltage density from 300 Hz to 10 MHz .............................. 6-1

Figure 6-2 Noise figure frequency characteristic from 10 MHz to 110 MHz ............................. 6-2

Figure 6-3 Voltage gain frequency characteristic from 10Hz to 200 MHz ................................. 6-2

Figure 6-4 Output VSWR frequency characteristic from 100 kHz to 500 MHz .........................6-3

Figure 6-5 Reverse transfer gain frequency characteristic from 1 kHz to 100 MHz ...................6-3

Table 2-1 List of contents .................................................................................................... 2-1

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