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RIGOL

Chapter 3 Demo Board Applications

User’s Guide for DS6000 Demo Board

3-4

3.1.3 DA Output Signal

1.

Signal Explanation



Signal Output Pin:

UF_DAC (output the converted and unfiltered sine waveform)
DAC_OUT (output the converted and filtered sine waveform)



The input of DA conversion are 8 bits, 10kHz digital signals (the signal pins are DAC IN7 to DAC
IN0)



The sample frequency is 25MHz.

2.

Functions

MSO, Digital-Analog conversion

3.

Demonstration and Result



The digital input signals are as shown in the figures below:

Figure 3-4 Digital Input Signals

Note: in the figure above, the probe ratio of CH1 and CH4 is “×10”.

DAC_IN7

DAC_IN6

DAC_IN5

DAC_IN4

DAC_IN3

DAC_IN2

DAC_IN1

DAC_IN0

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Summary of Contents for DS6000 Series

Page 1: ...RIGOL User s Guide DS6000 Digital Oscilloscope Demo Board July 2011 RIGOL Technologies Inc www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 2: ... Special Signal Applications 3 12 3 2 1 Noisy Sine Signal 3 12 3 2 2 Slow Sweep Signal 3 15 3 2 3 Fast Sweep Signal 3 17 3 2 4 Phase Deviation Signal 3 19 3 2 5 Rare Abnormal Signal 3 20 3 2 6 Frequent Abnormal Signal 3 22 3 2 7 Manual Abnormal Signal 3 24 3 2 8 Manual Burst Signal 3 25 3 2 9 Narrow Burst Signal 3 27 3 2 10 Glitch Signal of Sine 3 28 3 2 11 Glitch Signal of Square Waveform 3 30 3 ...

Page 3: ...o analog DA signal Differential Signal PAL video signal NTSC video signal Amplitude modulation AM signal Special Signals Sine signal superimposed with noise Slow sweep signal Fast sweep signal Phase deviation signal Rare abnormal signal Frequent abnormal signal Manual abnormal signal Manual burst Narrow pulse Sine signal superimposed with glitch Square signal superimposed with glitch Crosstalk sig...

Page 4: ...oduces the layout the connection and the power on of the Demo board 2 1 Demo Board Layout Part1 Part2_E Part2 Part3 Part3_E Part3_E Part4 Part4_E Part5 Part5_E Part6 Part5_S Part7_S Part7_E Part8 Part9 Part10 Figure 2 1 Board Layout www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 5: ...rigger key SINGLE Apart from the 1 25MHz square waveform a narrow pulse with 40ns pulse width is also output each time the SINGLE key is pressed MANU_BST Manual Burst signal Output 25 bursts each time the SINGLE key is pressed Each burst contains 100cyc high level 3cyc low level 1cyc high level 3cyc low level and 100cyc high level The time of each cyc is 8ns GLITCH_SINE Sine glitch signal Output 5...

Page 6: ...signal I2C_SDA I2C data signal Output signal of I2C data bus The content of the data is the character string RIGOL but the data frame head and read write bits will change I2C_SCL I2C clock signal Clock signal of I2C protocol The clock frequency is 125kHz Part3_E AM_MOD Part3 pins extension UART RS232_TX SPI_SS SPI_MOSI SPI_SCLK I2C_SDA I2C_SCL Part4 DIFF_SIG_N Differential signal Output random seq...

Page 7: ...ut a sweep signal of which the frequency is from 1kHz to 100kHz The sweep period is 40s and the sweep mode is log FAST Fast sweep Output a sweep signal of which the frequency is from10kHz to 1MHz The sweep period is 8s and the sweep mode is log NOISY_SINE Noisy sine signal Output sine signal with 500kHz frequency and 1Vpp amplitude A sine waveform with 125MHz frequency and 300mVpp amplitude is sup...

Page 8: ...gnals for testing Logic analyzer 16 channel parallel data Output 12 5MHz square waveform LA_D1 Output 6 25MHz square waveform LA_D2 Output 3 125MHz square waveform LA_D3 Output 1 562MHz square waveform LA_D4 Output 781 2kHz square waveform LA_D5 Output 390 6kHz square waveform LA_D6 Output 195 3kHz square waveform LA_D7 Output 97 66kHz square waveform LA_D8 Output 48 83kHz square waveform LA_D9 Ou...

Page 9: ...GND Ground terminal 5V 5V DC voltage 5V 5V DC voltage D0 24 bits digital input terminal 24 bits digital input terminal It can input digital data stream and be used for function extension D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15 D16 D17 D18 D19 D20 D21 D22 D23 Part10 USB Device USB port used for demo board power supply www GlobalTestSupply com Find Quality Products Online at sales GlobalT...

Page 10: ...rresponding signal output pin on the Demo board and connect the ground alligator clip of the probe to the ground terminal GND of the Demo board 2 3 Demo Board Power on The Demo board can be powered through the USB port Connect the USB DEVICE interface of the Demo board with the USB HOST interface of the oscilloscope or PC using USB data cable Note The icon at the upper right corner of the board in...

Page 11: ...ns Basic signal edge trigger duty cycle measurement 3 Demonstration and Result Connect the signal output pin SQUARE and GND to CH1 of the oscilloscope properly using the probe Set the trigger type to Edge the trigger mode to Auto and the vertical scale to 2 V adjust the vertical position and trigger level to appropriate values to make the oscilloscope trigger stably enable Duty and Vpp measurement...

Page 12: ...t the signal output pin SINE and GND to CH1 of the oscilloscope properly using the probe Set the trigger type to Edge the trigger mode to Auto and the vertical scale to 500 mV adjust the vertical position and trigger level to appropriate values to make the oscilloscope trigger stably The demonstration result is as shown in the figure below Figure 3 2 Demonstration Result of Sine Signal www GlobalT...

Page 13: ...Guide for DS6000 Demo Board 3 3 Enable FFT operation and the signal frequency is 500 kHz as shown in the figure below Figure 3 3 FFT Operation Result of Sine Signal www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 14: ...sion are 8 bits 10kHz digital signals the signal pins are DAC IN7 to DAC IN0 The sample frequency is 25MHz 2 Functions MSO Digital Analog conversion 3 Demonstration and Result The digital input signals are as shown in the figures below Figure 3 4 Digital Input Signals Note in the figure above the probe ratio of CH1 and CH4 is 10 DAC_IN7 DAC_IN6 DAC_IN5 DAC_IN4 DAC_IN3 DAC_IN2 DAC_IN1 DAC_IN0 www G...

Page 15: ...signal and the waveform has apparent steps as shown in the figure below Figure 3 5 Unfiltered Analog Output Signal Connect the signal output pin DAC_OUT and GND to CH2 of the oscilloscope properly using the probe Set the vertical scale to 1V and adjust the vertical position and trigger level to make the oscilloscope trigger stably The analog signal is as shown in the figure below This signal is th...

Page 16: ...nnect DIFF_SIG_P and DIFF_SIG_N with CH2 using differential probe and the oscilloscope identifies the differential probe automatically Set the Probe Type to Diff Probe Set the trigger type to Edge the trigger mode to Auto and the vertical scale to 500 mV adjust the vertical position and trigger level to appropriate values to make the oscilloscope trigger stably The demonstration result is as shown...

Page 17: ...le to 500 mV adjust the vertical position and trigger level to appropriate values to make the oscilloscope trigger stably The demonstration result is as shown in the figure below Figure 3 8 Differential signal Demonstration Using Single ended Probe Enable MATH function A B Set source A to CH1 and source B to CH2 The operation result is as shown in the figure below Figure 3 9 MATH Function Demonstr...

Page 18: ... SIGNAL and GND to CH1 of the oscilloscope properly using the probe Set the trigger type to Video the video standard to PAL SECAM the video polarity to Positive the synchronization to Line number the line number to 1 and the vertical scale to 500 mV adjust the vertical position and trigger level to appropriate values to make the oscilloscope trigger stably The demonstration result is as shown in t...

Page 19: ...IDEO SIGNAL and GND to CH1 of the oscilloscope properly using the probe Set the trigger type to Video the video standard to NTSC the video polarity to Positive the synchronization to Line number the line number to 1 and the vertical scale to 500 mV adjust the vertical position and trigger level to appropriate values to make the oscilloscope trigger stably The demonstration result is as shown in th...

Page 20: ...ult Connect the signal output pin AM_MOD and GND to CH1 of the oscilloscope properly using the probe Set the trigger type to Edge the trigger mode to Auto the trigger holdoff to 70us and the acquisition mode to Normal adjust the vertical position and trigger level to appropriate values to make the oscilloscope trigger stably The demonstration result is as shown in the figure below Figure 3 12 Ampl...

Page 21: ...peration function Set the vertical scale to 100mVrms div and the center frequency to 500 KHz The operation result is as shown in the figure below Figure 3 13 FFT Operation Result of Amplitude Modulation Signal www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 22: ...nstration and Result Connect the signal output pin NOISY_SINE and GND to CH1 of the oscilloscope properly using the probe Set the trigger type to Edge the trigger holdoff to 600us the sample mode to Normal and the vertical scale to 500 mV adjust the vertical position and trigger level to appropriate values to make the oscilloscope trigger stably The demonstration result is as shown in the figure b...

Page 23: ...Details Enable FFT operation Set the signal source to CH1 the window function to Rectangle the vertical scale unit to Vrms the vertical scale to 100 mVrms and the horizontal scale to 62 5MHz The operation result is as shown in the figure below Figure 3 16 FFT Operation Result of Noisy Sine Signal 125MHz noise component www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply...

Page 24: ...figure below Figure 3 17 Signal after Noise Reject Adjust the horizontal time base to 20ns again Enable FFT operation and set the related parameters as above The operation result is as shown in the figure below the noise component is basically rejected Figure 3 18 FFT Operation Result after Noise Reject The noise component is basically rejected www GlobalTestSupply com Find Quality Products Online...

Page 25: ...ult Set the SWEEP MODE to SLOW from the demo board connect the signal output pin SWEEP to the oscilloscope properly using the probe Press Auto at the front panel of the oscilloscope to set the oscilloscope parameters automatically Enable frequency measurement and statistic function Basically the frequency range of the sweep can be determined through the maximum and minimum of the statistic functio...

Page 26: ... Board 3 16 Adjust the Persistence Time to 20s and the sweep trace of the sweep signal is clearly displayed as shown in the figure below Figure 3 20 Sweep Trace of the Slow Sweep Signal www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 27: ...SWEEP MODE to FAST from the demo board connect the signal output pin SWEEP and GND to the oscilloscope properly Press Auto at the front panel of the oscilloscope to set the oscilloscope parameters automatically Enable frequency measurement and statistic function Basically the frequency range of the sweep can be determined through the maximum and minimum in the statistic function as shown in the fi...

Page 28: ...or DS6000 Demo Board 3 18 Adjust the Persistence Time to 500ms and the sweep trace of the sweep signal is clearly displayed Figure 3 22 Sweep Trace of the Fast Sweep Signal www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 29: ...o 100 mV the vertical position to 0 the trigger type to Edge the trigger source to CH1 the edge type to Leading and the trigger mode to Auto adjust the trigger level to an appropriate value to make the oscilloscope trigger stably Connect DELAY_CLOCK and GND to CH2 the probe enable CH2 set the vertical scale to 100 mV and vertical position to 0 Enable delay measurement of the rising edge as well as...

Page 30: ...sis 3 Demonstration and Result Connect the signal output pin RARE_AN and GND to CH1 of the oscilloscope properly using the probe Set the trigger type to Edge the trigger mode to Single the horizontal time base to 5ns the waveform capture rate to 180kHz the memory depth to Auto Set the persistence time to 20s and the capture result of abnormal signal is as shown in the figure below Figure 3 24 Rare...

Page 31: ...rd 3 21 Enable the waveform record function After the record finishes use the waveform playback and analysis function to analyze the accidental pulse Figure 3 25 Waveform Record and Analysis www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 32: ...il pulse trigger 3 Demonstration and Result Connect the signal output pin FREQ_AN and GND to CH1 of the oscilloscope properly using the probe Set the trigger type to Pulse the trigger condition to 6ns the trigger mode to Auto and the trigger level to 500mV At this point the abnormal signals can be observed stably as shown in the figure below Figure 3 26 Stable Display of Frequent Abnormal Signal w...

Page 33: ...oard 3 23 Enable Pass Fail mode Set X mask to 0 24div and Y mask to 0 50div The demonstration result is as shown in the figure below Figure 3 27 Pass Fail Test of Frequent Abnormal Signal www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 34: ...e trigger 3 Demonstration and Result Connect the signal output pin MANU_AN to CH1 of the oscilloscope properly using the probe Set the trigger type to Pulse the trigger condition to 40ns the trigger mode to Normal and the vertical scale to 1 V adjust the vertical position and trigger level to appropriate values The demonstration result is as shown in the figure below Figure 3 28 Manual Abnormal Si...

Page 35: ... sample rate deep memory 3 Demonstration and Result Connect the signal output pin MANU_BST and GND to CH1 of the oscilloscope properly using the probe Set the time base to 5ms At this point the sample rate is 2GSa s and the memory depth is 140Mpts Under single trigger every burst can be captured as shown in the figure below Figure 3 29 Manual Burst Signal www GlobalTestSupply com Find Quality Prod...

Page 36: ...ate and amplify the waveform captured As shown in the figure below all the waveform details are successfully captured As DS6000 provides a 140Mpts deep memory users can adjust the horizontal position to view relatively longer waveform stored Figure 3 30 Burst Details www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 37: ...Result Connect the signal output pin PULSE_OUT and GND to CH1 of the oscilloscope properly using the probe Set the trigger type to Pulse the trigger condition to 4ns the trigger mode to Auto and the vertical scale to 1 V adjust the vertical position and trigger level to appropriate values The demonstration result is as shown in the figure below Figure 3 31 Narrow Pulse www GlobalTestSupply com Fin...

Page 38: ...GND to CH1 of the oscilloscope properly using the probe Set the trigger type to Pulse the trigger condition to 10ns and the trigger mode to Auto adjust the time base to 100us and set the acquisition mode to Normal and the vertical scale to 500 mV adjust the vertical position and trigger level to appropriate values to make the oscilloscope trigger stably The demonstration result is as shown in the ...

Page 39: ...Set the time base to 2us The demonstration result is as shown in the figure below and the positions of the glitches on the sine waveform are clearly displayed Figure 3 33 Sine Glitch Signal Details www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 40: ...er 3 Demonstration and Result Connect the signal output pin GLITCH_CLK and GND to CH1 of the oscilloscope properly using the probe Set the trigger type to Edge the signal source to CH1 the edge type to Leading the trigger mode to Normal and the vertical scale to 500 mV adjust the vertical position and trigger level to appropriate values The demonstration result is as shown in the figure below Figu...

Page 41: ... pulse condition to 10ns the trigger mode to Normal and the time base to 2us the demonstration result is as shown in the figure below and users can view the interval time between glitches Figure 3 35 Time Interval between Glitches www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 42: ...e using the probe Connect CTALK_A and GND to CH2 of the oscilloscope using the probe Set the vertical scale of CH1 and CH2 to 2 V the trigger type to Edge the signal source to CH1 the edge type to Leading and the trigger mode to Auto adjust the trigger level to an appropriate value to make the oscilloscope trigger stably The demonstration result is as shown in the figure below As the frequency mea...

Page 43: ...s as shown in the figure below Figure 3 37 Crosstalk Signal Demonstration Result Enable the 20MHz bandwidth limit of CH1 and press SINGLE to trigger the 125 MHz high frequency signal The demonstration result is as shown in the figure below Figure 3 38 Enable 20MHz Bandwidth of CH1 www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 44: ...le the 20MHz bandwidth limit of CH2 and press SINGLE to trigger the 125 MHz high frequency signal The demonstration result is as shown in the figure below Figure 3 39 Enable 20MHz Bandwidth Limit of CH2 www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 45: ... start bit 8bits data bits 1bit stop bit LSB output negative polarity none check bit 3 Functions RS232 trigger RS232 decoding 4 Demonstration and Result Connect the signal output pin RS232_TX and GND to CH1 of the oscilloscope properly using the probe Set the trigger type to RS232 the signal source to CH1 the trigger condition to Start the baud rate to 9600bps and the trigger mode to Auto adjust t...

Page 46: ...40 RS232 Trigger and Decoding Set the trigger condition to Data and the data to 54 the ASCII code value of 6 The corresponding data can be captured stably Figure 3 41 RS232 Trigger and Decoding Data Trigger www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 47: ...check bit red error identifier is displayed Figure 3 42 RS232 Trigger and Decoding Odd Check Note the output signal of pin UART is the same with the RS232_TX signal except that its polarity is positive The same demonstration result can be obtained using the above method set the polarity to in protocol decoding Error Identifier www GlobalTestSupply com Find Quality Products Online at sales GlobalTe...

Page 48: ...1 byte 2 Signal Explanation Signal Output Pin SPI_SS SPI_MOSI SPI_SCLK The output Data increases steadily from 0 to 255 and the bits of every frame of data can be 8 16 24 32 3 Functions SPI trigger SPI decoding 4 Demonstration and Result Connect SPI_SCLK and GND to CH1 using the probe connect SPI_MOSI and GND to CH2 using the probe Set the trigger type to SPI SCL to CH1 SDA to CH2 the trigger cond...

Page 49: ...Chapter 3 Demo Board Applications RIGOL User s Guide for DS6000 Demo Board 3 39 Figure 3 43 SPI Trigger and Decoding www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 50: ...signal is not successfully received the answer bit holds in high level 2 Signal Explanation Signal Output Pin I2C_SCL I2C_SDA I2C signal with 125 kHz rate The content is RIGOL The data frame head and the read write bit would change 3 Functions I2C trigger I2C decoding 4 Demonstration and Result Connect I2C_SCL and GND to CH1 properly using the probe connect I2C_SDA and GND to CH2 properly using th...

Page 51: ...Chapter 3 Demo Board Applications RIGOL User s Guide for DS6000 Demo Board 3 41 Figure 3 44 I2C Trigger and Decoding www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 52: ...ved or not 2 Signal Explanation Signal Output Pin CAN_L CAN_H CAN signal with 1MHz signal rate The data is the character string RIGOL the data length is 5 the signal uses CRC check and does not have ACK segment 3 Functions CAN trigger CAN decoding 4 Demonstration and Result Connect the signal output pin CAN_H and GND to CH1 of the oscilloscope properly using the probe Set the trigger type to CAN t...

Page 53: ...a half of 25MHz the frequency of D1 is a half of the frequency of D0 and so on 2 Functions Logic analyzer 3 Demonstration and Result Connect LA_D0 and GND to CH1 of the oscilloscope using the probe connect LA_D1 and GND to CH2 of the oscilloscope using the probe The demonstration result is as shown in the figure below Figure 3 46 LA_D0 and LA_D1 Output Signals www GlobalTestSupply com Find Quality...

Page 54: ...logic relation between the two channels as trigger condition and the trigger positions of CH1 and CH2 to Leading and X respectively The oscilloscope can trigger stably as shown in the figure below Figure 3 47 LA_D0 and LA_D1 Output Signals Pattern Trigger www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

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