OPERATING MANUAL

MHS-5200A
Dual-channel
DDS Signal Generator
Unpacking
When you get a new MHS-5200A Series dual-channel DDS signal generator, it
is recommended that you follow these steps to inspect the instrument.

1、Check for transportation damage caused.

Such as packing or bubble bag cushions serious damage, keep them until the
machine and accessories passed the test.
2、Check the box in the article are complete.
The package contents as described below. If the content does not match or if the
instrument is damaged, contact your dealer or manufacturer.

Host computer：MHS-5200A Series dual-channel DDS signal generator 1

Accessory： Power Adapter 1
USB cable 1
Signal connection cable 2
User Manual (pdf version) 1
3. Check the machine
Inspect the instrument is damaged, not working properly, or fails performance tests,
please contact your dealer or the Company.

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 1 .Outline
1-1. The instrument Introduction
MHS-5200A series instruments using large scale integrated circuits and
high-speed FPGA MCU microprocessor, the internal circuit to take surface mount
technology has greatly enhanced the instrument's noise immunity and service life.
Display interface using LC1602 LCD display is divided into two lines, the top line
shows the current frequency, the following line displays additional parameters or
function variable and flexible use of flip key setting, greatly enhances the operability.
This instrument signal generation, waveform scanning, as well as the use of parameter
measurement has great advantages, is an electronic engineer, electronic laboratories,
production lines and teaching, research and the ideal test, measurement equipment.

Model Description
This series of instruments in four models, the main difference is the maximum
frequency sine wave, as follows:
MHS-5200-06M sinusoidal signals at frequencies up to 6MHz
MHS-5200-12M sinusoidal signals at frequencies up to 12MHz
MHS-5200-20M sinusoidal signals at frequencies up to 20MHz
MHS-5200-25M sinusoidal signals at frequencies up to 25MHz
The instrument characteristics
1、Direct digital synthesis (DDS) technology, FPGA design, low power consumption;
2、Dual output, can work in sync phase adjustable；
3、It has up to 500 seconds of linear and logarithmic sweep function Sweep；
4 、 With a sine wave, triangle wave, square wave, sawtooth rise, falling sawtooth
waveform basic function and variable duty cycle pulse wave, but also has 16 sets of
arbitrary waveform customized by the user;
5、A total of 10 sets of parameters stored bits have M0 ~ M9, M0 boot automatically
transferred out of data;
6、At 12MHz or less, the sharpest of up to 15Vp-p, more than 12MHz, the biggest
reach 8Vp-p;

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7、Built precision -20dB attenuator reach the minimum amplitude resolution 1mV;
8、With a 120% ~ + 120% DC bias function;
9、Pulse Duty precise adjustment to 0.1%；
10、Having four variable phase difference of TTL output；
11、Having a frequency measurement, period measurement, positive and negative
pulse width measurement, duty cycle measurements and counting function；
12、Four optional gate frequency measurement time, which strike a balance between
speed and accuracy；
13、All parametric equalizer can be done by an internal calibration procedure；
14、Powerful communications features, completely open communication protocol that

allows the secondary development of very simple；

15、After connecting with the PC, the PC can be used to control the instrument, and
can be edited on the PC arbitrary waveform output waveform is downloaded to the
instrument.
16、This type machine can be equipped with an increase in power module, the signal
output amplitude reaches 30Vpp, the maximum output current reaches 1A;

Technical indicators
Table 1-1 MHS-5200A Series Specifications

Project Parameters

Normal mode：MHS-5200-06M：0Hz~6MHz；
MHS-5200-12M：0Hz~12MHz；
Sine wave
MHS-5200-20M：0Hz~20MHz；
MHS-5200-25M：0Hz~25MHz。
Square wave 0Hz~6MHz

Frequency Triangle wave 0Hz~6MHz

Range Sawtooth 0Hz~6MHz
Key Arbitrary
0Hz~6MHz
Features Waveform
TTLDigital
0Hz~6MHz
signal wave
Output modulation Frequency sweep

Waveform types Sine, square, triangle, sawtooth lift, TTL digital signal wave, Arb

Waveform Length 1024 Point

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 Sampling rate 200MSa/s
Waveform
amplitude 8bits
resolution
The minimum
frequency 10mHz
resolution
Frequency error ±5×10-6

Frequency stability ±1×10-6

Amplitude range 15mVp-p~15Vp-p(12MHz or less)
(peak to peak) 15mVp-p~8Vp-p(12MHz above)
Output Impedance 50Ω±10%
Amplitude 1mVp-p（-20dBAttenuation）
resolution 10mVp-p（Does not decay）
Amplitude stability ±0.5%（Every five hours）

Amplitude error ± 1%+10mV（Frequency1KHz，15 Vp-p）

－120%～+120%（The ratio of the bias voltage and signal
Offset Range
amplitude）
Bias Resolution 1%

Phase range 0～359°

Phase resolution 1°
Harmonic arrived
40dBc(<1MHz) ,35dBc(1MHz~20MHz)
Sine wave System
Distortion <0.8%(20Hz~20KHz)

Lifting along time ≤20ns

Square wave Overshoot ≤10%

Duty cycle
0%~99.9%
adjustment range
Lifting along time ≤20ns

TTL LOW <0.3V

High 1V~7.5V

Quantity 16 groups
Arbitrary
Waveform Memory depth /
1KB / 16 group
group
Scan Mode Linear sweep, log sweep

Scan Scan time 1S～500S

Scan range It is determined by the sweep parameter settings

GATE-TIME=10S 0.1HZ - 60MHZ
External GATE-TIME=1S 1HZ - 60MHZ
Frequency range
measurements GATE-TIME=0.1S 10HZ - 60MHZ
GATE-TIME=0.01S 100HZ - 60MHZ

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 Input voltage range 0.5Vp-p~20Vp-p

Counting range 0~4294967295

Counting Manually
Positive and
negative pulse
10ns resolution, the maximum measurable 10s
width
measurement
Periodic
20ns resolution, the maximum measurable 20s
measurements
Duty Cycle
0.1% resolution, measuring range from 0.1% to 99.9%
Measurement
Source Selection 1.Ext.IN input (AC signal), 2.TTL_IN input (digital signal)

Memory 10
Memory
Location M0-M9

Interface Using USB to serial interfaces

Communication
Interface 57600bps
rate
Protocol Using the command line, the agreement public

Power supply DC DC 5V
Length × width ×
Size 180×190×71mm
height
Weight Single 546g

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 Instrument Description
1、Panel

MHS-5200A Appearance Figure 2-1 shows the description of the parts as shown in
Table 2-1.Figure 2-1 MHS5200A panel

Table 2-1 MHS5200A Panel

Grade Explanation Grade Explanation
1 LCD1602 7 CH2 output interface
2 Status Indicator 8 DV5V power input
3 Operation buttons 9 USB
communicationinterface

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 4 Knob TTL input / output
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5 Ext.In input interface interfaceinterface
6 CH1 output interface 11 Switch

2、Ribbon Description

LCD instrument display is divided into two functional areas, as shown in Figure
2-2, description of the parts shown in Table 2-2.

Figure 2-2 MHS5200A schematic display

Table 2-2 MHS5200A Ribbon Description

Grade Ribbon Description

1 Frequency Display
2 Operation Feature Tip

3、Key Functions

Cursor left adjustable parameters of the step value

Move the cursor right step to reduce the adjusted parameter value

Page Up key function selection

Function selection Page down

OK button

Channel switch (CH1 \ CH2)

Switching position, when the "*" when the "*" second line adjustment
options to adjust the frequency of the first line,

Click this button to quickly enter a combination of waveform adjustment

page
Click this button to quickly enter a combination of amplitude modulation
page

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 Click this button to turn on or off output combination

Instructions
Power
1、Access 5V supply. You can use the box to configure oriented instrument powered
DC5V power adapter.
2、Enter the main interface.

Instructions
This section will detail how to operate the instrument. It should be noted that,
similar to the instrument channel CH1 CH2 channel with which the operating
instructions section 1-6 also apply to CH2 channel.

1、Set the CH1 waveform

Drawing 2-3
In the main interface shown in Figure 2-3, when the "*" in the first line ，

Click Bond Adjust the output waveform type, the output waveform types are sine,
square, triangle, rising sawtooth, descending sawtooth wave and a 16-Group on

Arbitrary,Press Key it is possible to return ahead of the original set of waveform，

If you want to quickly adjust the output waveform can click ， Then a
"*" to switch to the second row, rotating "ADJUST" knob, you can quickly switch the
output waveform types.

2、Set the CH1 frequency

In the main interface, shown in Figure 2-4 when the "*" in the first line,By

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adjusting or Move the cursor to adjust the frequency step size，Then to adjust
the frequency of the output waveform by rotating the "ADJUST" knob.

图 2-4

3、Setting the amplitude of CH1

In the main interface，Press Button after，The magnitude of the

interface will appear in a cursor set，Click or Button, It is possible to move the

cursor position, rotate "ADJUST" knob to adjust the amplitude of the output
waveform, as shown below:

Drawing 2-5
Wherein, 05.00V refers peak to peak. In this range setting function mode, the
maximum amplitude of 15V, minimum 0.15V, the minimum step value 0.01 (10mV);

as shown in a state 2-6，Press -20dB Attenuation state of the incoming signal, the
output signal of a maximum of 1.500V, the minimum value of 0.015V, the minimum
step is 0.001V (1mV).

图 2-6

4、Setting bias of CH1

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 In the main interface，Press 或 ，Adjusted to offset adjustment options

shown in Figure 2-7，Then click ，The "*" are switched to the second

row，Click or To move the cursor，Then"ADJUST" knob to adjust the offset

parameter.

Drawing 2-7

5、Duty cycle setting CH1

In the main interface，Press or ，Adjusted to duty cycle adjustment options

shown in Figure 2-8，Then click ，The "*" are switched to the second

row, click or To move the cursor，Then"ADJUST" knob to adjust the offset

parameter.

Drawing2-8

5、Setting the phase difference between the two channels

In the main interface，Press or ，Adjusting the phase adjustment options shown

in Figure 2-9, Then click ， The "*" are switched to the second row ，

Click or To move the cursor ， Then"ADJUST" knob to adjust the bias

parameter, you need special note is the phase difference only in the same frequency
CH1 and CH2 frequency when it makes sense.

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 Drawing 2-9

6、Setting the display unit of frequency

In the main interface，Press or ，Adjusted to the frequency display unit

adjustment options shown in Figure 2-9, Then click ， The "*" are

switched to the second row，Then click Switching frequency units Hz、kHz、MHz。

图 2-10

7、Tracking
Tracking function is used to synchronize the frequency of CH2 to CH1, and
users can set the amplitude of the tracking and duty track, In the main interface ，

Press or ， Adjusted to tracking options shown in Figure 2-11 ， Then

click ， The "*" are switched to the second row, and then

click Switched ON or OFF state. When the tracking function is turned frequency
automatic tracking frequency channel CH2 CH1 channel. Also, before turning if
tracing, CH1 and CH2 channel amplitude is the same tracking feature is turned on
CH1 and CH2 frequency automatic tracking; if the duty is the same as CH1 and CH2
are turned on after tracing CH1 and CH2 account empty than automatic tracking.

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 Drawing 2-11

8、External signal input port selection

Select the input signal Ext.IN for input AC signal, Select TTL.IN for selecting the

input digital signal wave. In the main interface,Press or ，Adjust to the input

port selection page, Then click ， The "*" are switched to the second

row,Then click Key switch input port selection Ext.IN or TTL.IN.

图 2-12

9、Measurement function
In selecting the input source later, the input signal can be measured a variety of
parameters.

（ 1) In the main interface, Press or ,Adjusted to the measurement function

selection page shown in Figure 2-13，Then click ，The "*" are switched to

the second row，Then click Bond Switch the output port selection measurement
object. FREQ.（Frequency）、COUNTR(Counting function)、POS-PW(+ Width)、
NEG-PW(Negative Pulse Width)、PERIOD(Cycle)、DUTY（Duty cycle）。

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 Drawing2-13

（2）After determining the measurement object，Click ，Enter gate time selection

page as shown below:

（3）Click Bond，Select a different gate time 10S, 1S, 0.1S, 0.01S, different gate
time on the frequency measurement accuracy and measurement speed.

Drawing 2-14

（3）Gate time is determined，Click ，Enter the measurement results display.

The page can display the input measurement results, such as frequency, duty cycle,
pulse width, and so the cycle parameters.

10、sweep function
（1） Adjusted to start frequency sweep function settings page, and then adjust the
start frequency 5kHz. As shown below:

Drawing2-15

（2）Then click Into the cut-off frequency sweep function settings page, and
then adjust the cutoff frequency of 10kHz. As shown below:

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 Drawing2-16

（ 3 ） Then click Enter sweep time setting page ， Then click

The "*" are switched to the second row，Rotation "ADJUST" knob to

adjust the sweep time, frequency arbitrarily set the time range between 1-600S, shown
in the lower set sweep time 10S:

（4） Then click Enter sweep mode selection screen shown in Figure

2-22, Click Bond Select the frequency scan mode。There are two ways to scan
frequency, LINE (linear scanning) and LOG (logarithmic sweep).

（5） After determining the scan mode， Click Enter sweep control page，

Then click on or off sweep function.

11、Save / Load function

In the main interface, press or Enter the parameter to save the page, and

then click Press the key combination of "*" consumption is adjusted to

the second row in Figure 2-11, then rotate "ADJUST" knob to adjust the save location,
this machine a total of 10 sets of parameters stored addresses M0-M9. Machine is
turned on by default to read M0 address parameters.

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 图 2-16

In the main interface, press or Enter the parameter to call up the page,

then click Press the key combination of "*" consumption is adjusted to

the second row in Figure 2-12, then rotate "ADJUST" knob to adjust the save location,
this machine a total of 10 sets of parameters stored addresses M0-M9. Machine is
turned on by default to read M0 address parameters.

图 2-17

12、Calibration function
Calibration function is we do a job at the factory, you can consult the factory
calibration is required.

Chapter Four PC Instructions

1、install software
Step 1: Install the runtime software visa540_runtime.exe
Step 2: Install CH341SER the SETUP.exe serial to USB drivers
Step 3: Install signal generator .exe program

2、online

Step 1: Right-click Computer - Properties - Device Manager - observation assigned

to the computer serial port

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Step 2: Select the appropriate serial line after the point

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Step 3: Online Success

1：Output standard waveforms

（1）The PC is connected, switch to expand the page, select the standard waveforms,
such as pulse Sinclair

（2）Click on the "Generate waveforms" button, it will generate Figure:

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(3) Select the holding position, the series machines provide 0-15 waveforms stored
position, select a location where 1, and then click on "Write."

（4）After the write completion signal control to call up the page in the CH1 Arb1, as
shown below:

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2：Hand-painted Arbitrary Waveform
(1) PC and the machine connected, to ensure the normal communication between the
machine and the computer.
(2) to extend the functionality of the software to switch the page, then move the
mouse to the waveform display area, and then press the left mouse button to begin
drawing, release the mouse button to stop drawing.

(3) the position of the waveform stored in the appropriate location, then signal
waveform control page will be drawn in the saved position is recalled.

3：Painted a trapezoidal wave

1. The host computer and the machine connected, to ensure the normal
communication between the machine and the computer.
2. When the hand-painted trapezoidal waveform in which selection criteria straight;
3. Set the starting point 0 and end point 300; 125 initial margin, margin terminate 220
4. Click generate waveform waveform is generated as follows:

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5. In setting the starting point of 301, 723 termination points; starting amplitude 220,
220 terminate amplitude, then click generate waveforms generated waveform as
shown below:

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6. In setting the starting point of 724, 1023 termination point; starting amplitude 220,
125 terminate amplitude, then click generate waveform waveform is formed as
follows:

7. The waveform is then stored in the appropriate location, then signal waveform
control page will be drawn in the saved position is recalled.
This is how to draw a trapezoidal wave method, by analogy, in this way you can
draw other types of waveforms.

4. Draw a waveform AM
1. The host computer and the machine connected, to ensure the normal
communication between the machine and the computer.
2. In the standard sine waveform selection box, select the starting point 0 is written;
written termination point 32, and then click on the "generate waveform" button, form
the following waveform:

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3. Then click the Save button to save just generated waveform table to the specified
location. 1.csv named file, and then reset the waveform table, set the starting point 0;
terminate point 1024, and then click on the "Generate waveforms" button. Waveform
generation follows:

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4. Select the type of product operation, and then click on the operation button to open
1.csv file in the specified location, amplitude modulation waveform is generated.

6. Then the position of the waveform stored in the appropriate location, then signal
waveform control page will be drawn in the saved position is recalled.

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Care and maintenance

1. Make sure the input power adapter correctly, the machine uses DC5V power
adapter;
2, the instrument display on the LCD module is fragile, perishable items, please do
not slam and near chemicals to prevent corrosion. When you feel the liquid surface
dust and dirt, wipe with a soft cloth carefully.
3, the working temperature of -10 ~ 50 ℃, Storage temperature -20 ~ 70 ℃, and the
instrument in a dry environment.
4. Do not attempt to disassemble the equipment, destroy the package will void the
warranty. The instrument is there are no user-serviceable parts, repairs may only
repair outlets or by specifying the return factory.
5, avoid lighted candles, a water cup, corrosive chemicals and other unsafe items
placed on the surface of the instrument, so as not to cause damage to the instrument.
6, the display screen are easy to pollution, fragile device, do not touch the hand as
well as external and collision, avoid children play this instrument.
7. Do not move the instrument to avoid severe irreparable damage to the internal
circuit when the instrument is working properly.
Exclude the above problem re-power the instrument still does not work, please
contact your supplier!

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