JUNCTEK JDS8060 JDS8080 Dual Channel Function/Arbitrary Waveform Signal Generator

1. Introduction

The JUNCTEK JDS8000 series dual-channel function/arbitrary waveform generator is a versatile instrument designed for various electronic applications. Featuring a 2.8-inch high-definition color screen and soft silicone keys, it can generate sine, square, triangle, pulse, and arbitrary waveforms, as well as DC signals. This device incorporates advanced functions such as waveform modulation, burst, pulse width digital adjustment, frequency scanning, amplitude scanning, duty cycle scanning, and VCO voltage control scanning. It also includes a built-in frequency meter and counter. The JDS8000 series is ideal for electronic enthusiasts, scientific research, educational purposes, and product development and debugging.

2. Product Features

• Dual Channel Performance: Both channels offer identical performance, allowing simultaneous output of identical or different waveforms. Phase difference is freely adjustable from 0-359.99°.
• Wide Frequency Range: Sine wave output frequency ranges from 1nHz-60MHz (JDS8060) or 1nHz-80MHz (JDS8080).
• High Output Amplitude: Output amplitude is adjustable from 1mVpp-25Vpp.
• High Sampling Rate & Resolution: Features a sampling rate up to 275MSa/s and a vertical resolution of 14Bits * 8192 points for accurate waveform generation.
• Modulation Functions: Both channels support AM, FM, PM, ASK, FSK, PSK, and other modulated waveform signals.
• Scanning Functions: Includes scanning for frequency, amplitude, and duty cycle, with both linear and logarithmic modes.
• VCO Voltage Control: Control output waveform frequency, amplitude, and duty cycle via external voltage signals.
• Pulse Width Modulation: Digital adjustment of pulse waveform width and cycle time.
• Burst Function: Set output for 1-1,048,575 arbitrary periods of waveform signals.
• Arbitrary Waveform Capability: Over 160 common arbitrary waveforms are built into the PC software. Custom waveforms can be drawn and downloaded to the generator.
• Measurement Function: Built-in 1Hz-100MHz frequency meter and counter with AC and DC coupling modes.
• Firmware Update: Free firmware upgrades available to continuously enhance product performance.
• Mobile APP Control: Built-in Bluetooth chip for wireless remote control and arbitrary waveform drawing via a mobile application.
• Secondary Development: Free communication protocol and PC software provided for programming control.
• Multi-level Synchronization: Connect two or more units online for multi-channel waveform output.

3. Package Contents

Please check the package contents upon receipt to ensure all items are present and undamaged:

• Signal Generator (JDS8060 or JDS8080) x 1
• Power Cord x 1
• Q9-Q9 Direct Line (BNC cable) x 1
• USB Data Cable x 1
• Clip Cable x 2
• User's Guide x 1

4. Product Overview

Familiarize yourself with the main components and interfaces of your signal generator.

Figure 4.1: Front and Rear Panel Overview

Front Panel Components:

• 2.8 inch color screen: Displays waveform parameters, settings, and measurement results.
• Function shortcut keys: Quick access to common functions (WAVE, MOD, SYS, SWEEP, VCO, MEAS).
• Knob: For adjusting parameters and navigating menus.
• Direction keys: For navigation and selection.
• Channel control keys (CH1, CH2): To select and control individual output channels.
• Function soft keys (MEM, H/Bx, SHIFT): Context-sensitive keys for various operations.
• Switch: Power on/off button.
• Input interface (MOD, EXT): For external modulation and trigger inputs.
• Output interface (CH1, CH2): BNC connectors for waveform output.

Rear Panel Components:

• Ground terminal: For grounding the instrument.
• Vents: For heat dissipation.
• Power switch: Main power switch.
• AC power socket: For connecting the power cord (AC 85-264V, 47-63Hz).
• Extended interface (TTL Ext.): For TTL level input/output.
• Communication interface (USB): For PC connection.
• DC Power socket (DC5V): Alternative power input.
• SYNC IN/OUT: Synchronization input/output.

5. Setup

1. Unpacking: Carefully remove the signal generator and all accessories from the packaging. Retain the packaging for future storage or transport.
2. Power Connection: Connect the provided power cord to the AC power socket on the rear panel of the instrument and then to a suitable AC power outlet. Ensure the power switch is in the OFF position before connecting.
3. Grounding: For safety and optimal performance, connect the ground terminal on the rear panel to a reliable earth ground using a suitable grounding cable.
4. Initial Power On: Flip the power switch to the ON position. The device should power on and display the startup screen.
5. Output Connection: Connect the BNC output connectors (CH1, CH2) to your desired load (e.g., oscilloscope, circuit under test) using the provided Q9-Q9 direct line or clip cables.
6. PC Connection (Optional): If using PC software for control or arbitrary waveform generation, connect the USB data cable from the instrument's communication interface to your computer.

6. Operating Instructions

This section details the various functions and how to operate your JUNCTEK signal generator.

6.1 Waveform Generation

1. Press the WAVE shortcut key to select the desired waveform type (Sine, Square, Triangle, Pulse, Arbitrary, DC).
2. Use the knob and direction keys to adjust parameters such as frequency, amplitude, offset, and duty cycle for the selected waveform.
3. Press CH1 or CH2 to enable/disable output for the respective channel.

6.2 Modulation Function

The device supports various modulation types including AM, FM, PM, ASK, FSK, and PSK.

Figure 6.1: JDS8000 Modulation Types

1. Press the MOD shortcut key.
2. Select the desired modulation type (e.g., AM, FM).
3. Adjust modulation parameters such as modulation frequency, depth, and source (internal/external) using the knob and direction keys.

6.3 Scanning Function

The scanning function allows for frequency, amplitude, or duty cycle sweeps.

Figure 6.2: VCO and Sweep Frequency Displays

1. Press the SWEEP shortcut key.
2. Select the parameter to sweep (Frequency, Amplitude, or Duty Cycle).
3. Set the start frequency/amplitude/duty cycle, end frequency/amplitude/duty cycle, sweep time, and sweep mode (linear/logarithmic).
4. Enable the sweep function for the desired channel.

6.4 VCO Voltage Control Scanning

Control output parameters using an external voltage signal.

1. Press the VCO shortcut key.
2. Configure the VCO mode and calibration settings.
3. Apply an external voltage signal to the EXT input.

6.5 Pulse Width Modulation

Adjust the characteristics of pulse waveforms.

Figure 6.3: Pulse Width Adjustment Interface

1. Select a pulse waveform.
2. Navigate to the pulse width adjustment settings.
3. Digitally adjust the pulse width (0.020uS - 4S) and pulse period (0.02uS - 40S).

6.6 Burst Function

Generate a specific number of waveform cycles.

1. Select the desired waveform.
2. Access the Burst function settings.
3. Set the number of cycles (1-1,048,575) for the burst output.

6.7 Arbitrary Waveform Function

Create and output custom waveforms.

Figure 6.4: Arbitrary Waveform Drawing Interface with PC Software

Figure 6.5: Rich Types of Built-in Waveforms

1. Use the provided PC software to draw or select from over 160 built-in arbitrary waveforms.
2. Download the custom waveform to the signal generator.
3. Select the arbitrary waveform type on the device and enable output.

6.8 Measurement and Counter

Utilize the built-in frequency meter and counter.

Figure 6.6: Measurement and Counter Displays

1. Press the MEAS shortcut key.
2. Select either Frequency Meter or Counter function.
3. Choose AC or DC coupling mode.
4. Connect the signal to be measured to the appropriate input.

6.9 Firmware Update

Keep your device updated for optimal performance.

1. Visit the JUNCTEK official website to download the latest firmware and upgrade software.
2. Connect the signal generator to your PC via the USB data cable.
3. Follow the instructions provided with the upgrade software to update the firmware.

6.10 Mobile APP Control

Control your device wirelessly via Bluetooth.

Figure 6.7: Mobile APP Control Interface

1. Download the official JUNCTEK mobile APP from your device's app store.
2. Ensure Bluetooth is enabled on your mobile device and the signal generator.
3. Pair your mobile device with the signal generator via the APP.
4. Use the APP interface to control functions and draw arbitrary waveforms.

6.11 Secondary Development

For advanced users and custom applications.

1. Contact JUNCTEK support to obtain the free communication protocol and PC software development kit.
2. Utilize the provided resources to programmatically control the signal generator.

6.12 Multi-level Synchronization

For complex multi-channel setups.

1. Connect multiple JUNCTEK JDS8000 series units using the SYNC IN/OUT ports.
2. Configure the synchronization settings on each device as per the advanced user guide (if available) or contact support for detailed instructions.

7. Specifications

Figure 7.1: Product Dimensions

8. Maintenance

• Cleaning: Use a soft, dry cloth to clean the exterior of the instrument. Do not use abrasive cleaners or solvents.
• Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures. When not in use for extended periods, disconnect it from the power supply.
• Ventilation: Ensure the vents on the rear panel are not obstructed to prevent overheating.
• Cable Care: Inspect all cables regularly for signs of wear or damage. Replace any damaged cables immediately.

9. Troubleshooting

10. User Tips

• Start Simple: When first using the generator, begin with basic sine wave output to an oscilloscope to verify functionality before moving to more complex waveforms or modulation.
• Check Connections: Always double-check all cable connections, especially BNC connectors, to ensure they are secure and correctly terminated. Loose connections can lead to distorted signals or no output.
• Grounding is Key: Proper grounding is crucial for accurate measurements and to prevent noise. Always ensure the instrument is correctly grounded.
• Experiment with Arbitrary Waveforms: The arbitrary waveform feature is powerful. Use the PC software to draw custom shapes and observe their effects on your circuits.
• Utilize Dual Channels: The dual-channel capability is excellent for testing circuits that require two synchronized or phase-shifted signals. Experiment with the phase difference adjustment.

11. Warranty and Support

The JUNCTEK JDS8000 series signal generator comes with a standard manufacturer's warranty. Please refer to the warranty card included in your package or visit the official JUNCTEK website for detailed warranty terms and conditions.

For technical support, troubleshooting assistance, or inquiries regarding secondary development and firmware updates, please contact JUNCTEK customer service through their official channels. Keep your purchase receipt and product serial number handy when contacting support.