Minghe Instruments MHS-5200A Series Manuel utilisateur
OPERATING MANUAL
MHS-5200A
Dual-channel
DDS Signal Generator
1
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.
2
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, FPGAdesign, low power consumption;
2、Dual output, can work in sync phase adjustable；
3、It has up to 999 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 20Vp-p, more than 12MHz, the biggest
reach 15Vp-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-5200ASeries Specifications
Project
Parameters
Key
Features
Frequency
Range
Sine wave
Normal mode：MHS-5200-06M：0Hz~6MHz；
MHS-5200-12M：0Hz~12MHz；
MHS-5200-20M：0Hz~20MHz；
MHS-5200-25M：0Hz~25MHz。
Square wave
0Hz~6MHz
Triangle wave
0Hz~6MHz
Sawtooth
0Hz~6MHz
Arbitrary
Waveform
0Hz~6MHz
TTLDigital
signal wave
0Hz~6MHz
Output modulation
Frequency sweep
Waveform types
Sine, square, triangle, sawtooth lift, TTLdigital signal wave,Arb
Waveform Length
2048 Point
4
Sampling rate
200MSa/s
Waveform
amplitude
resolution
12 bits
The minimum
frequency
resolution
10mHz
Frequency error
±5×10-6
Frequency stability
±1×10-6
Amplitude range
(peak to peak)
15mVp-p~15Vp-p(12MHz or less)
15mVp-p~8Vp-p(12MHz above)
Output Impedance
50Ω±10%
Amplitude
resolution
1mVp-p（-20dBAttenuation）
10mVp-p（Does not decay）
Amplitude stability
±0.5%（Every five hours）
Amplitude error
± 1%+10mV（Frequency1KHz，15 Vp-p）
Offset Range
－120%～+120%（The ratio of the bias voltage and signal
amplitude）
Bias Resolution
1%
Phase range
0～359°
Phase resolution
1°
Sine wave
Harmonic arrived
System
40dBc(<1MHz) ,35dBc(1MHz~20MHz)
Distortion
<0.8%(20Hz~20KHz)
Square wave
Lifting along time
≤20ns
Overshoot
≤10%
Duty cycle
adjustment range
0%~99.9%
TTL
Lifting along time
≤20ns
LOW
<0.3V
High
1V~10V
Arbitrary
Waveform
Quantity
16 groups
Memory depth /
group
1KB / 16 group
Scan
Scan Mode
Linear sweep, log sweep
Scan time
1S～999S
Scan range
It is determined by the sweep parameter settings
External
measurements
Frequency range
GATE-TIME=10S 0.1HZ - 60MHZ
GATE-TIME=1S 1HZ - 60MHZ
GATE-TIME=0.1S 10HZ - 60MHZ
GATE-TIME=0.01S 100HZ - 60MHZ
5
Input voltage range
0.5Vp-p~20Vp-p
Counting range
0~4294967295
Counting
Manually
Positive and
negative pulse
width
measurement
10ns resolution, the maximum measurable 10s
Periodic
measurements
20ns resolution, the maximum measurable 20s
Duty Cycle
Measurement
0.1% resolution, measuring range from 0.1% to 99.9%
Source Selection
1.Ext.IN input (AC signal), 2.TTL_IN input (digital signal)
Memory
Memory
10
Location
M0-M9
Interface
Interface
Using USB to serial interfaces
Communication
rate
57600bps
Protocol
Using the command line, the agreement public
Power supply
DC
DC 5V
Size
Length × width ×
height
180×190×71mm
Weight
Single
546g
6
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
7
4
Knob
10
TTL input / output
interfaceinterface
5
Ext.In input interface
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
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
Grade
Ribbon Description
1
Frequency Display
2
Operation Feature Tip
8
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 20V, minimum 0.20V, 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 2.000V, the minimum value of 0.005V, the minimum
step is 0.001V (1mV).
图2-6
4、Setting bias of CH1
Table des matières
