DDS-3005 USB ManualV1.9
DDS-3005 USB Arbitrary Waveform Generator and
Frequency Counter
Operation Manual V1.9
Introduction
1.1 Introduction
DDS-3005 USB Arbitrary Waveform Generator has one channel of
arbitrary waveform output, 8 Bits output, synchronized signal outputs, two
channels of Counter/Frequency Measurement inputs, 8 Bits input and external
trigger input. User can edit the waveform arbitrarily by the mouse or choose
the regular waveforms such as Sine, Square, Tri-angle, Saw-tooth, TTL, White
Noise, Gauss Noise, Trapezia, Exponent, AM and FM. The parameters, such
as amplitude, frequency and offset, are also settable. The data format of DDS3005 USB is completely compatible with that of Tektronix; it can directly read
the waveform data files produced by the Tektronix oscilloscope or Tektronix
waveform editor software and redisplay the waveform. DDS-3005 USB adopts
the DDS technology so that it has the advantages of high frequency accuracy,
high waveform resolution, high reliability, and wide software support. It can
be widely used in the various kinds of electronics labs and it offers complete
interface for second time development to be jointlessly inserted into other
auto-measuring systems.
1.2 Working Principle
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The PC transfer the waveform data to the memorizer of the signal
generator via the USB bus, the ID counter cycles and send the period
waveform data to the DAC circuits, the DDS (Direct Digital Synthesized)
circuit produces the corresponding DAC refreshing clock. The waveform of
DAC is outputted through the Cache magnifier, Low Pass Filter, and the
Magnifier. The frequency counter can test the external frequency.
1.3 Technical Indexes
Waveform Output Channel
Frequency Range 0.1Hz(DC)~5MHz
Resolution 0.01Hz
DAC Clock 0~50MHz Continuously adjustable, in
step of 0.2Hz
Channels 1CH waveform output
Memory Depth 256KSa
Vertical 14 Bits
DDS-3005 USB ManualV1.9
Resolution
Stability <30ppm
Amplitude ±10V Max.
Output Impedance 50 Ω
Output Current 50mA Vpeak=100mA
Low Pass Filter 5MHz, 1MHz, 100KHz, 10KHz, 1KHz
Programmable Control
Harmonic Wave
-65dBc(1KHz), -53dBc(10KHz)
distortion
Frequency Counter Channel 1
Range DC~25MHz
Input Amplitude 400mVpp~25Vpp
Coupling Mode AC, DC Programmable
Accuracy ±Time Base Error ±1 Count
Input Impedance > 50KΩ
Frequency Counter Channel 2
Range 25MHz~2.7GHz
Input Power ±20dbm
Coupling Mode AC
Accuracy ±Time Base Error ±1 Count
Input Impedance 50 Ω
Standard Frequency 25MHz
Frequency Stability 20 ppm max.
Aging Rate ±1 ppm/year
Digital Input and Output
Bits 8 Bits+ Synchronized Signal 1 Bit +
External Signal 1 Bit
Level 3/5V TTL/CMOS
Working Environment
Working
0~70 Centigrade
Temperature
Working
Humidity
Weight 0.7Kg
2
0~65%
Installation and Set up
2.1 Minimum System requirements
PentiumΠ400M CPU or compatible PC, 64 RAM, 1024x768 VGA,
Windows98/Windows2000/WindowsXP/Windows VistaUSB1.2 or USB 2.0
DDS-3005 USB ManualV1.9
port.
2.2 DDS-3005 USB Shape and Terminal Illustration
DDS-3005 USB Shape
Arbitrary Waveform
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Front Panel
25MHz~2.7GHz
counter/Frequency
Measurement
DC~25MHz
Counter/Frequency
Measurement
DDS-3005 USB ManualV1.9
4
Digital outputs
Working Status
Indication
PIN1
PIN1
USB
Digital inputs
Rear Panel
PIN1 Bit7
PIN2 Bit6
PIN3 Bit5
PIN4 Bit4
PIN5 Bit3
PIN6 Bit2
PIN7 Bit1
PIN8 Bit0
PIN9 Synchronized Signal Output
PIN10 Digital Ground
Digital Output Port Definition
PIN1 Bit7
PIN2 Bit6
PIN3 Bit5
PIN4 Bit4
PIN5 Bit3
PIN6 Bit2
PIN7 Bit1
PIN8 Bit0
PIN9 External Trigger Input
PIN10 Digital Ground
Digital Input Port Definition
DDS-3005 USBV1.08 Software Operations
DDS-3005 USB ManualV1.9
3.1 Driver Installation
Connect the USB instrument to the USB port through the USB cable, the PC
prompts that new USB device is found.
The PC will automatically find the new USB device and choose the
nominated directory to install the driver.
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Choose the correct directory of the driver through the browser or search in
the CD driver.
DDS-3005 USB ManualV1.9
Click “Continue” to finish the installation.
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DDS-3005 USB ManualV1.9
The system will notify that the new USB device can work normally now.
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After the successfully installation, in the Device Manager, you can see the
DDS-3005 USB device.
DDS-3005 USB ManualV1.9
3.2 Run the DDS-3005 USB software
The setup software of DDS-3005 USB is in the CD, run the Setup.exe to
install the software.
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DDS-3005 USB ManualV1.9
3.3 Run the DDS-3005 USB
Click “Start”- “Program”-“DDS-3005 USB”-“DDS-3005 USB” to go into
the main window, shown as below:
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DDS-3005 USB ManualV1.9
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3.4 Choose the Wave Forms
Press down any button of certain waveform to switch to the output of such
kind of waveform. When switch to arbitrary waveform from other kind of
waveform, the edition work can be done on the original wave form.
3.5 Waveform Parameter Setup
Select the “Parameters” in the Menu, there are the choices for setting of
various waveform parameters.
DDS-3005 USB ManualV1.9
Example “modulation Signal”:
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Set the parameters in the dialog box.
3.6 Counter/ Frequency Measurement
To measure by the buttons shown as below:
Including “High Frequency/ Low Frequency” , “Coupling Mode”
“Frequency Measure/ Counter” and the function’s “On/Off”.
3.7 Waveform Output Control
By the following buttons to control the output dot numbers, trigger mode,
DDS-3005 USB ManualV1.9
output amplitude, and limit frequency of the wave filter.
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3.8 Edition of Arbitrary Waveform
Choose the “Arbitrary Dot Edit” in the “Edit” Menu, or double-click the
display window to edit each dot, or use the mouse the draw the
waveform.
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3.9 Waveform Data Files
The data format of DDS-3005 USB V1.09 is “.CSV”. Its format is
compatible with the CSV file produced by the Tektronix ARBExpress
software. User can edit or set up the required CSV waveform and also use
Excel to open and edit the CSV wave files.
Warn: Any usage beyond the limit of the input & output signal ports as
well as strong electrical field and static may cause the abnormal
working or even damage to the instrument.
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