Tektronix 3 Series Hybrid Domain Oscilloscope

Tektronix 3 Series Hybrid Domain Oscilloscope

Core specification parameters

1. Model Overview (Comparison of Key Parameters)

Specification item MDO32 (2-channel simulation) MDO34 (4-channel simulation) Remarks

Analog channel bandwidth 100MHz-1GHz 100MHz-1GHz divided into multiple bandwidth levels (100/200/350/500/1000MHz)

Sampling rate (1/2 channels) 2.5GS/s (≤ 500MHz)/5GS/s (1GHz) is the same as 2.5GS/s when MDO32 4 channels are enabled

Record length (any number of channels) 10M 10M optional 1K/10K/100K/1M/5M/10M

Digital channel (3-MSO option) 16 channel 16 channel input impedance 101k Ω, minimum signal 500mVpp

AFG (3-AFG option) 1 output 1 output supports sine/square wave/pulse waveforms, etc

Spectrum analyzer 1 channel 1 channel standard 9kHz-1GHz, 3-SA3 option extended to 3GHz

2. Key subsystem specifications

(1) Analog channel input and vertical specifications

Input characteristics: Input coupled AC/DC; The input impedance can be selected as 1M Ω (± 1%, typical capacitance 13pF) or 50 Ω (± 1%);

Maximum input voltage: 300VRMS at 1M Ω DC coupling (installation category II), 5VRMS at 50 Ω (peak value ≤± 20V);

Sensitivity range: 1mV/div-10V/div (1-2-5 sequence) at 1M Ω, 1mV/div-1V/div at 50 Ω;

DC gain accuracy: ± 2.5% for 1mV/div, ± 2.0% for 2mV/div, ± 1.5% for 5mV/div and above (an additional 0.1% for every ℃ above 30 ℃);

Bandwidth characteristics: The 1GHz model has a bandwidth of DC-1GHz at 10mV/div-1V/div and DC-150MHz at 1mV/div (different bandwidth models correspond to different voltage bandwidth relationships).

(2) Horizontal specifications

Sampling rate range: up to 5GS/s (1GHz model) when 1-2 channels are enabled, and up to 2.5GS/s when 3-4 channels are enabled;

Time/grid range: 1GHz model 400ps/div-1000s/div, other models 1ns/div-1000s/div;

Long term sampling rate and delay accuracy: ± 10ppm (≥ 1ms time interval);

Record length: 1K, 10K, 100K, 1M, 5M, 10M optional.

(3) Trigger specifications

Trigger type: Supports edge, sequence (B trigger), pulse width, timeout, logic, video (NTSC/PAL, etc.), serial bus (I2C/SPI/CAN, etc.) triggering;

Edge triggered sensitivity: When simulating channel 1mV/div-4.98mV/div, DC-50MHz is 0.75div, and the highest bandwidth is 1.3div;

Video trigger: Supports interlaced/non interlaced systems, can trigger specific fields and lines, compatible with formats such as 480p/720p/1080p;

Trigger holding range: 20ns-8s.

(4) Other key specifications

Display: 11.6-inch TFT capacitive touch screen, 1920 × 1080 resolution, 16.77 million colors, brightness of 450cd/m ²;

I/O ports: 1 Ethernet (10/100Mb/s), optional GPIB (TEK-USB-488 adapter), 1 HDMI, 3 USB hosts (2 front and 1 rear), 1 USB device;

Environmental adaptability: working temperature -10 ℃ -+55 ℃, working humidity 5% -90% (≤ 40 ℃)/5% -60% (>40 ℃ -+55 ℃), working altitude ≤ 3000m;

Power consumption: maximum 130W, power supply voltage 100V-240V ± 10%, frequency 50/60Hz (supports 400Hz ± 10% at 115V).

Performance verification process

1. Verify the prerequisites

The instrument runs continuously for 10 minutes, and the ambient temperature and humidity are within the operating range;

Perform signal path compensation (SPC), and re execute when the temperature changes by more than 5 ℃;

Connect the oscilloscope and testing equipment to the same AC circuit to avoid offset voltage affecting the results.

2. Required testing equipment (Table 3)

Minimum requirements for device name, example model

DC voltage source 3mV-100V, ± 0.1% accuracy Fluke 9500B (equipped with 9530 module)

Level sine wave generator 9kHz-3000MHz, ± 4% amplitude accuracy-

Time stamp generator with 80ms cycle, ± 1ppm accuracy, rise time<50ns-

Power meter (including sensor) Power sensor range -30dBm -+10dBm Rohde&Schwarz NRX (with NRP-Z98)

Frequency counter 0.1Hz-50MHz, 5ppm accuracy Tektronix FCA3000

Digital multimeter (DMM) with DC voltage ± 0.1% accuracy and AC RMS ± 0.2% accuracy Tektronix DMM4040

Auxiliary accessories such as 50 Ω BNC cable and 50 Ω BNC straight through terminal Tektronix 012-0057-01 cable

3. Core testing projects and processes

(1) Basic Testing: Self Inspection and SPC

System diagnosis (self-test): Disconnect all probes → press Default Setup → Utility → Self Test → Run Self Test, all items must be "Passed", failure should contact support;

Signal path compensation (SPC): Default Setup → Utility → Calibration → Run SPC. Each channel takes 5-15 minutes and needs to be "Passed", otherwise subsequent testing cannot be carried out.

(2) Simulation channel key testing

Key requirements for testing purposes of testing projects

Input terminal testing and verification of 1M Ω/50 Ω input impedance accuracy: 990k Ω -1.01M Ω at 1M Ω, 49.5 Ω -50.5 Ω at 50 Ω (10mV/div, 100mV/div levels)

DC balance test verifies the signal offset of DC coupling at 50 Ω and 20MHz bandwidth. 1mV/div is ± 0.5div, 2mV/div is ± 0.25div, and 10mV/div and above are ± 0.2div

Simulate bandwidth testing to verify the bandwidth compliance at different levels. Under a 50 Ω termination, the gain (Vbw pp/Vin pp) is ≥ 0.707 (-3dB point)

DC gain accuracy test verifies DC signal amplification accuracy of 1mV/div ± 2.5%, 2mV/div ± 2.0%, 5mV/div and above ± 1.5% (20MHz bandwidth, 1M Ω)

Offset accuracy test verifies the accuracy of vertical offset with an error of ± 3.8mV for 1mV/div and 700mV offsets, and ± 0.7V for 1V/div and 100V offsets

(3) Other important tests

Random noise test: In sampling mode, 100mV/div, full bandwidth, 1GHz model ≤ 3.1mV, 100MHz model ≤ 2.85mV;

Time difference measurement accuracy (DTA): When using a 1GHz model with 4ns/div and a 240MHz signal, the error is ≤ 128ps;

AFG test: sine wave frequency accuracy of ± 1.3kHz at 10kHz, square wave frequency accuracy of ± 1.25kHz at 25kHz, amplitude accuracy of ± 1.5% (1kHz);

DVM test: Error ± 2.052V - ± 1.948V when DC voltage is 1V input, and error ± 0.2mV when AC voltage is 20mVpp (1kHz).

Test records and subsequent processing

Test record: The document provides a detailed table to record the "lower limit value test result upper limit value" for each test, which needs to be printed and filled in;

Result processing: Performance verification only judges whether it meets the standard, without adjusting the instrument; If the test fails, refer to the "3 Series MDO Service Manual" to perform factory calibration;

Calibration cycle: The validity period of the reference frequency error (± 10ppm) is 1 year, and it is recommended to calibrate once a year.