Dream Catcher ME3100 User manual

ME3100 Analog Circuit Design
Ready-to-Teach Package for Electronic Instrumentation and Measurement
Quick Start Guide
revision 2.00
Printed on 29 June 2016

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NOTE:
This product has been tested and found to conform to the following EMC standards.
The limits are designed to provide reasonable protection against harmful interference in
a laboratory installation.
Standard
Limit
EMC: IEC61326-1:2005 / EN61326-1:2006
CISPR11:2003/EN55011:2007
IEC 61000-4-3:2002 / EN 61000-4-3:2002
Class A, Group 1
3 V/m (80 MHz-1.0 GHz)
3 V/m (1.4 GHz-2.0 GHz)
1 V/m (2.0 GHz-2.7 GHz)
This product complies with the requirements of the Low Voltage Directive 73/23/EEC
and EMC Directive 89/336/EEC, and carries the CE-marking.
CAUTION –ESD!
THIS PRODUCT CONTAINS ELECTRONIC COMPONENTS SENSITIVE TO
ELECTROSTATIC DISCHARGE.
An electrostatic discharge generated by a person or an object coming in contact with
the electrical components may damage or destroy the product. To avoid the risk of
electrostatic discharge, please observe the handling precautions and recommendations
contained in the EN100015-1 standard. Do not connect or disconnect the device while it
is being energized.
WARNING:
CHANGES OR MODIFICATIONS NOT EXPRESSLY APPROVED BY THE PARTY
RESPONSIBLE FOR COMPLIANCE WITH THE EMC RULES COULD VOID THE
USER’S AUTHORITY TO OPERATE THE PRODUCT.

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Table of Contents
Table of Contents..........................................................................................................................................3
1. Quick Setup and Verification.....................................................................................................................4
2. Support and Warranty...............................................................................................................................9
Appendix A: ME3100 Analog Circuit Design Kit .........................................................................................10
Appendix B: Specifications..........................................................................................................................11
Appendix C: Pin Layout of LM158 ..............................................................................................................12
Appendix D: Using Modular Instruments ....................................................................................................13

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1. Quick Setup and Verification
The following steps demonstrate the basic setup and lab test of the ME3100 Analog Circuit Design kit:
—Embedded Audio Player Test and Verification
—LED Audio VU Meter Test and Verification
—Equalizer and LED Audio VU Meter Test and Verification
1.1 Embedded Audio Player Test and Verification
1. The ME3100 Analog Circuit Design kit consists of an embedded audio player, which is able to
play and audio files stored in the provided microSD memory card.
2. Make sure the memory card is inserted into the Embedded Audio-Sound Module, M1 that is
located at the left corner of the ME3100 Analog Circuit Design kit.
3. Turn on the power supply unit. Set one of the dual channel output voltages to exactly +5 V. Set
current limits to 1.0 A.
4. Connect the +5 Vpower supply output to test points T3 (Va)and GND to T4 (Gnd) of the ME3100
Analog Circuit Design kit respectively. This is shown in Figure 1.
5. Extend the power source from T3 (5 V) and T4 (Gnd) to the breadboard as shown in Figure 1.
Figure 1 –Connections Between the Power Supply and the ME3100 Analog Circuit Design Kit
6. Connect T13 and T14to the extended 5 V and Gnd on the breadboard respectively. This is
shown in Figure 2. These connections allow you to control the music playback using the push
buttons PB1, PB2, PB3, and PB4 on the ME3100 Analog Circuit Design kit.

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Figure 2 –Connections of T13 and T14 on the Breadboard
7. Next, connect T15 (Speaker+) and T16 (Speaker–)to T37 and T38 respectively, as shown in
Figure 3.
Figure 3 –Connections of T15 and T16 to the On-Board Speaker
8. Make sure that the polarities of the connections are correct.
9. After the connections are verified, enable the power supply outputs. The annunciators on the
display panel of the power supply should be turned on. This indicates that the power supply is
providing a constant voltage supply to the ME3100 Analog Circuit Design kit.
10. If the CC annunciator is on, disable the power supply output. Check if this is due to a current limit
setting or a faulty connection.
11. The red LED D1, as shown in Figure 3, will blink for a moment if +5 V is correctly supplied to the
ME3100 Analog Circuit Design kit.
12. Press the PLAY/STOP button to play or stop the music. The LED D1 will be turned on when the
module is playing the music and turned off when the music is stopped.
13. Press the NEXT or PREV button to play the next or previous audio file.
14. Press the RESET button to reset the audio module. The LED D1 will blink for a moment.
15. Turn off the ME3100 Analog Circuit Design kit by pressing the Output On/Off button on the
power supply.

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1.2 LED Audio VU Meter Test and Verification
1. Build a single band equalizer by following the schematic connections as shown in Figure 4 on the
breadboard of the ME3100 Analog Circuit Design kit. This single band equalizer will be used to
test the functionality of the Audio VU Meter. Refer to the appendix for the pin layout of the op-amp
LM158.
Figure 4 –Single Band Equalizer with VU Meter
2. Table 1 shows the value of the electronics components in the schematic.
Table 1 –Value of Components
Label
Value
R1
1.5 kΩ
RF
120 kΩ
RL
330 Ω
CF1
2.2 µF
CL1
4.5 nF
3. The resonant frequency of the filter is 1 kHz. Hence, connect the function generator to the input
pin of the amplifier with 1 V peak-to-peak (pk-pk) and frequency of 1000 Hz.
4. Vary the gain of equalizer by adjusting the potentiometer VR1.
5. You should be able to observe the display of LED bar (LEDs D2 to D9) varies according to the
adjustment.

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1.3 Equalizer with LED Audio VU Meter Test and Verification
1. Remain the same connections of the ME3100 Analog Circuit Design kit as shown in Figure 1.
2. Build a 3-band gyrator-based equalizer with UV meter by following the schematic connections as
shown in Figure 5 on the breadboard of the ME3100 Analog Circuit Design kit. Refer to the
appendix for the pin layout of op-amp LM158.
Figure 5 –Schematic Diagram of the 3-Band Gyrator-Based Equalizer with VU Meter
3. Table 2 shows the value of the electronics components of the schematic.
Table 2 –Value of Components
Label
Value
R1
1.5 kΩ
RF
120 kΩ
RL
330 Ω
CF1
560 nF
CF2
2.2 µF
CF3
150 nF
CL1
1.2 nF
CL2
4.5 nF
CL3
270 pF
4. Figure 5 shows a 3-band equalizer based on a single variable gain amplifier using, the gyrator-
based bandpass filter. The resonant frequencies of the filter are 250Hz, 1 kHz, and 4 kHz.
5. The op-amp U3A is acting as a buffer circuit (unity gain amplifier) in order to isolate the signal
sources from the equalizer filter banks.
6. With all the connections properly connected as shown in Figure 5, configure the power supply as
described in Section 4.1 and turn it on. The red LED D1 on the ME3100 Analog Circuit Design kit
will blink for a moment.

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7. Press the PLAY/STOP button to play the audio files stored in the microSD memory card. The
LED D1 will be turned on when the module is playing the audio file.
8. The LEDs (D2-D9) of the UV meter will visualize the output of the equalizer when the audio file is
played.
9. Adjust the potentiometer VR1, VR2, or VR3 to control the equalizer.
10. You would be able to hear the change in the music quality as you adjust the equalizer controls.

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2. Support and Warranty
2.1 Terms and Conditions
This courseware product contains scholarly and technical information and is protected by copyright laws
and international treaties. No part of this publication may be reproduced by any means, be it transmitted,
transcribed, photocopied, stored in a retrieval system, or translated into any language in any form, without
the prior written permission of Acehub Vista Sdn. Bhd.
The use of the courseware product and all other products developed and/or distributed by Acehub Vista
Sdn. Bhd. are subject to the applicable License Agreement.
For further information, see the Courseware Product License Agreement.
To retrieve the password for installation of the provided materials and software as well as the model
answers and solutions for lab sheets, please register yourself at http://dreamcatcher.asia/cw under the
Product Registration menu using the product key provided with the teaching courseware.
2.2 Product Warranty
Acehub Vista Sdn. Bhd. warrants that its products sold will at the time of shipment be free from
defects in material and workmanship and will conform to Acehub Vista Sdn. Bhd.'s applicable
specifications.
If Acehub Vista Sdn. Bhd. receives notice of a defect or non-conformance during the one year
warranty period, Acehub Vista Sdn. Bhd. will, at its option, repair or replace the affected product.
Buyer will pay shipping expenses for return of such product to Acehub Vista Sdn. Bhd. or its
authorized reseller. Acehub Vista Sdn. Bhd. or its authorized reseller will pay expenses for
shipment of the repaired or replacement product.
This warranty shall not apply to any products Acehub Vista Sdn. Bhd. determines have been, by
Buyer or otherwise, subject to operating and/or environmental conditions in excess of the
maximum values established in applicable specifications, or have been subject to mishandling,
misuse, neglect, improper testing, repair, alteration, damage, assembly, or processing that alters
physical or electrical properties.
In no event will Acehub Vista Sdn. Bhd. be liable for any incidental or consequential damages.
This warranty extends to Buyer only and not to Buyer's customers or users of Buyer's products
and is in lieu of all other warranties whether expressed, implied, or statutory including implied
warranties of merchantability of fitness.
For technical support and warranty, e-mail [e-mail]

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Appendix A: ME3100 Analog Circuit Design Kit
As shown in Figure A-1, the ME3100 Analog Circuit Design kit consists of the following:
—Audio Speaker
—Embedded Audio Player
—LED Audio UV Meter
—Analog Potentiometer
—Seven-Segment Displays
—Insulation Transformer
—Various test points for measurements
Figure A-1 –ME3100 Analog Circuit Design Kit

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Appendix B: Specifications
POWER SUPPLY
Line voltage range 50/60 Hz, 100 VAC to 240 VAC
POWER ADAPTER
Output voltage 12 VDC
OPERATING ENVIRONMENT
Operating temperature at ambient environment condition at 35° C
Up to 95% RH at 40°C (non-condensing)
STORAGE COMPLIANCE
–40°C to 70°C
SAFETY
This product is rated for indoor use only.
EMC
IEC 61326-1:2005 / EN 61326-1:2006
Canada: ICES/NMB-001: Issue 4, June 2006
Australia/New Zealand: AS/NZS CISPR 11:2004
DIMENSIONS (W x H x D)
230 mm x 65 mm x 180 mm
WEIGHT
0.6 kg
WARRANTY
12 months
OTHERS
ME3100 –Analog Circuit Design Kit
Min
Typical
Max
Input voltage supply (variable, 0 –15 Vdc)
0 V
15.5 V
Input current supply
1.0 A
Embedded Audio Player
Sampling rate
6 kHz
32 kHz
MicroSD memory slot capacity
4 GB
Voltage supply
2.7 V
3.6 V
Idle current
8 µA
Built-in Speaker
Frequency response
500 Hz
2000 Hz
Impedance
8 
Power rating
0.15 W

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Appendix C: Pin Layout of LM158
Figure C-1 –Pin Layout of LM158

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Appendix D: Using Modular Instruments
Tips on How to Use the Keysight U2741A USB Modular Digital Multimeter
Front Panel of the Keysight U2741A USB Modular Digital Multimeter
Figure D-1 –Front Panel of the Digital Multimeter
Setting Up the Connection
1. Connect the digital multimeter to the PC using a USB cable.
2. Power on the digital multimeter.
3. Launch the Keysight IO Control and the Keysight Measurement Manager (AMM).
4. The Select USB Device dialog box will appear displaying the connected U2741A devices. To
start the application, select a U2741A device and click OK to establish the connection
5. The U2741A can only be operated via the USB interface. On the front panel of the U2741A, there
are two LED indicators. The power indicator lights up once the U2741A is powered on. There is a
system error if the indicator blinks after the U2741A is powered on. The USB indicator will only
blink when there is data exchange activity between the U2741A and the PC.
6. You can control the U2741A via the Keysight Measurement Manager (AMM) for U2741A or via
SCPI commands sent through the USB interface from your own application programs.
7. Launch the Keysight IO Control and AMM.
8. The Select USB Device dialog box will appear displaying the connected U2741A devices. To
start the application, select a U2741A device and click OK to establish the connection. You may
start to use the digital multimeter now.
Measuring DC Voltage
1. The DC voltage measurement function of the U2741A has the following features:
five ranges to select: 100 mV, 1 V, 10 V, 100 V, and 300 V; or auto range
input impedance is 10 MΩ for all ranges (typical)
input protection is 300 V on all ranges (HI terminal)

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2. Make the connection as shown in Figure D-2 in order to measure DC voltage. You can control
the U2741A via the Keysight Measurement Manager (AMM) software for U2741A or via SCPI
commands sent through the USB interface from your own application programs.
Figure D-2 –Measuring DC Voltage
3. If you are using the AMM, select the DCV function located at the top-left corner. Set the desired
range under Range section. A suitable range should be selected to give the best measurement
resolution. The reading is displayed and updated continuously.
4. If you are using SCPI commands, enter MEASure[:VOLTage]:DC? in order to make a DC
voltage measurement.
Measuring DC Current
1. The DC current measurement function of the U2741A has the following features:
three ranges to select: 10 mA, 100 mA, 1 A, and 2 A; or auto range
input impedance is 10 MΩ for all ranges (typical)
input protection fuse is 2 A, voltage rating 250 V on all ranges
2. Make the connection as shown in Figure in order to measure DC current. You can control the
U2741A via the Keysight Measurement Manager (AMM) software for U2741A or via SCPI
commands sent through the USB interface from your own application programs.
Figure D-3 –Measuring DC Current
3. If you are using the AMM, select the DCI function located at the top-left corner. Set the desired
range under the Range section. A suitable range should be selected to give the best
measurement resolution. The reading is displayed and updated continuously.
4. If you are using SCPI commands, enter MEASure:CURRent[:DC]? in order to make a DC
current measurement.

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Tips on How to Use the Keysight U2761A USB Modular Function Generator
Front Panel of the Keysight U2761A USB Modular Function Generator
Figure D-4 –Front Panel of the U2761A
Setup Connection
9. Connect the function generator to the PC using a USB cable.
10. Power on the function generator.
11. Launch the Keysight IO Control and the Keysight Measurement Manager (AMM).
12. The Select USB Device dialog box will appear displaying the connected U2761A devices. To
start the application, select a U2761A device and click OK to establish the connection.
13. Click Output to enable or disable the output of the function generator after the desired
parameters are set.
14. The U2761A is able to output five standard waveforms that are Sine, Square, Ramp, Triangle,
Pulse, and DC.
15. You can select one of the three built-in Arbitrary waveforms or create your own custom
waveforms.
16. You can also internally modulate Sine, Square, Ramp, Triangle, and Arbitrary waveforms using
AM, FM, PM, FSK, PSK, or ASK.
17. The linear or logarithmic frequency sweeping is available for Sine, Square, Ramp, Triangle, and
Arbitrary waveforms.
18. Table D-1 shows which output functions are allowed with modulation and sweep.
19. Each √indicates a valid combination. If you change to a function that is not applicable for
modulation, or sweep; then the modulation or mode will be disabled.
Table D-1 –Output Functions
Sine
Square
Ramp
Triangle
Pulse
DC
Arbitrary
AM, FM, PM, FSK, PSK, ASK Carrier
√
√
√
√
√
AM, FM, PM Internal Modulation
√
√
√
√
√
FSK, PSK, ASK Internal Modulation
√
Sweep Mode
√
√
√
√
√

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Keysight Measurement Manager Soft Front Panel (Function Generator)
Figure D-5 –Graphic User Interface of the Keysight Measurement Manager (Function Generator)
Figure D-5 shows the graphic user interface of the Keysight Modular Function Generator under the
Keysight Measurement Manager (AMM). Table D- shows the features of each panel of the interface.
Table D-2 –Features of the AMM Function Generator Interface
No.
Panel
Features
1
Waveform Pattern Selection
Select various types of output function by clicking the buttons.
2
Waveform Parameters
Configure the function parameters (Frequency, Amplitude, and Offset)
3
Waveform Pattern Display
Display a graph representation of the output function
4
Modes of Waveform
Configure to modulation mode or sweep mode
5
Status Display
Display the parameters and status of the configured output waveform
6
Trigger & Output Enable/Disable
Enable/disable the Trigger and Output buttons (they are highlighted when
enabled and grey when disabled)

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Function Limitation
If you change to a function where the maximum frequency is less than the current function, the frequency
will be adjusted to the maximum value for the new function. For example, if you are currently outputting a
20 MHz sine wave and then change to the Ramp function, the U2761A will automatically adjust the
output frequency to 200 kHz (the upper limit for Ramp). As shown in Table D-, the output frequency range
depends on the function currently selected. The default frequency is 1 kHz for all functions.
Table D-3 –Output Frequency Range
Function
Minimum Frequency
Maximum Frequency
Sine
1 µHz
20 MHz
Square
1 µHz
20 MHz
Ramp, Triangle
1 µHz
200 MHz
Pulse
500 µHz
5 MHz
DC
Not applicable
Not applicable
Arbitrary
1 µHz
200 kHz
2 MHz (U2761A Option 801)
Amplitude Limitation
The default amplitude is 1 Vpp (into 50 Ω) for all functions. If you change to a function where the
maximum amplitude is less than the current function, the amplitude will automatically adjust to the
maximum value for the new function. This may occur when the output units are Vrms or dBm due to the
differences in crest factor for the various output functions. For example, if you output a 2.5 Vrms Square
wave (into 50 Ω) and then change to the Sine wave function, the U2761A will automatically be adjusted
the output amplitude to 1.768 Vrms (the upper limit for Sine wave in Vrms).
Duty Cycle Limitations
For Square waveforms, the U2761A may not be able to use the full range of duty cycle values at higher
frequencies as shown below:
20% to 80% (frequency 10 MHz)
40% to 60% (frequency 10 MHz)
If you change to a frequency that cannot produce the current duty cycle, the duty cycle is automatically
adjusted to the maximum value for the new frequency. For example, if you currently have the duty cycle
set to 70% and then change the frequency to 12 MHz, the U2761A will automatically adjusts the duty
cycle to 60% (the upper limit for this frequency).
Output Termination
This configuration applies to output amplitude and offset voltage only. The U2761A has a fixed series
output impedance of 50 ice output connector. If the actual load impedance is different from
the specified value, the amplitude and offset levels will be incorrect.
The range of the output termination is 1 Ω to 10 kΩ, or Infinite. The default value is 50 Ω.
The output termination setting is stored in volatile memory and upon power-off or after a remote
interface reset, the setting will return to a default value.
If you specify a 50 Ωtermination but are actually terminating into an open circuit, the actual
output will be twice the value specified. For example, if you set the offset to 100 mVDC (and
specify a 50 Ωload) but are terminating the output into an open circuit, the actual offset will be
200 mVDC.
If you change the output termination setting, the output amplitude and offset levels are
automatically adjusted (no error will be generated). For example, if you set the amplitude to 5 Vpp
and then change the output termination from 50 Ωhigh impedance, the amplitude value will

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double to 10 Vpp. If you change from high impedance to 50 Ω, the displayed amplitude value will
drop to half.
You cannot specify the output amplitude in dBm if the output termination is currently set to high
impedance. The units are automatically converted to Vpp.
You may configure the output termination by clicking Tools in the menu bar. Select Waveform Gen
followed by the Output Setup tab; input the desired load impedance value on the Impedance Load
panel, and select the unit from the drop down list; or select High Z for high impedance load.

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Tips on How to Use the Keysight U2701A USB Modular Oscilloscope
Front Panel of the Keysight U2701A USB Modular Oscilloscope
Figure D-6 –Front Panel of the U2701A
Setup Connection
1. Connect the oscilloscope to the PC using a USB cable.
2. Power on the oscilloscope.
3. Launch the Keysight IO Control and the Keysight Measurement Manager (AMM).
4. The Select USB Device dialog box will appear displaying the connected U2701A devices. To
start the application, select a U2701A device and click OK to establish the connection.
5. Figure D-7 shows the general graphical user interface of the Keysight Modular Oscilloscope on
the Keysight Measurement Manager.
Figure D-7 –Graphical User Interface of the Keysight Measurement Manager (Oscilloscope)

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Keysight Measurement Manager Soft Front Panel (Oscilloscope)
Figure D-86 –Soft Front Panel of the Oscilloscope
Figure D-86D-8 shows the graphic user interface of Keysight Modular Oscilloscope under Keysight
Measurement Manager together with the label of each panel. Table D-D-4 shows the features of each
panel of the interface. Table D-4 –Features of the AMM Oscilloscope Interface
No.
Panel
Description
1
Oscilloscope toolbar
Consists of oscilloscope tools
2
Waveform Acquisition tab
Displays the time-domain waveform for the oscilloscope
3
FFT Analysis tab
Displays the FFT spectrum of the signal
4
Configuration summary
Displays the configured functions and settings
5
Waveform graph display
Displays the output of the data acquired
6
Scope control tabs
Consists of all the sub functions of the oscilloscope
7
Measurement Results panel
Displays the measurement results of the scope operations
8
Status tab
Displays the status panel, which shows the history of operations
9
Refresh rate
Displays the graph update rate in frame/sec.
10
Video Sampling Rate
Displays the video sampling rate (in number of samples per second taken from a
continuous signal)
11
Calibration Delta Temp. indicator
Displays the calibration delta temperature of the connected device
Analog Controls
The analog control panel of the interface consists of a vertical control and a horizontal control that are
used to control and set the waveform of the graph display. The vertical control is used to change the