QLS2805S-5M DDS Signal Generator Function Generator Frequency Counter with Color LCD Communication

QLS2805S-5M DDS Signal Generator Function Generator Frequency Counter with Color LCD Communication

Description:
It uses a large-scale FPGA integrated circuit and a 32-bit high-speed microprocessor (for ARM). Its internal circuit adopts surface mount technology, which greatly improves the anti-interference and service life of the instrument. The display interface adopts a 2.4-inch TFT LCD screen with a high resolution of 320*240, which can display all the parameters of the channel and prompt the current button function. It effectively utilizes the button resources, avoids the user's frequent button operation, and greatly enhances its operability.

Features:
- Using direct digital synthesis (DDS) technology and FPGA design, featuring ultra-low power consumption
- Powered by a single DC5V power adapter; easy to carry and use
- 2.4" TFT true color LCD screen and variable function keys and rotary encoder enable easy operation
- Basic function waveforms such as sine wave, triangle wave, square wave, sawtooth wave, and pulse wave with adjustable duty cycle
- The minimum frequency of output signal can reach 0.01HZ
- There are 10 groups of parameter storage bits from M0 to M9, and the data of M0 will be automatically recalled when the machine is turned on
- The minimum waveform frequency resolution can reach 0.01HZ, and the minimum amplitude resolution can reach 10MV
- With manual trigger and external trigger modes, the machine can output any pulse train from 1 to 999999
- Pulse wave duty cycle adjustment is accurate to 0.5%
- Frequency sweep with endpoint
- With frequency measurement and counting function
- All parameters can be calibrated by internal program
- Powerful communication functions and open communication protocols make easy to do secondary development
- After connecting with a PC, users can use the PC to control the instrument
- Switch between Chinese and English interface

Technical Parameters:
Main Features:
- Frequency range: sine wave (QLS2805S) 0HZ~5MHZ; square wave 0HZ~2MHZ; triangle wave 0HZ~2MHZ; sawtooth wave 0HZ~2MHZ
- Output modulation: frequency sweep and trigger
- Waveform types: sine, square, triangle, and sawtooth
- Frequency error: ±8x10-6
- Frequency stability: ±5x10-6
- Amplitude range (peak-to-peak): 10MVP-P to 10VP-P
- Output impedance: 50Ω±10%
- Amplitude Resolution: 10MVP-P
- Amplitude stability: ±0.5% (every 5 hours)
- Amplitude error: ±1%+10MV (frequency 1KHZ, 8VP-P)
- Bias Range: -100% to +100%

Sine Wave:
- Harmonic rejection: 40DBC (<1MHZ); 35DBC (1MHZ~5MHZ)
- Distortion: <0.8% (20HZ~20KHZ)

Square Wave:
- Rising edge time: ≤28NS
- Overshoot: ≤10%
- Duty cycle adjustment range: 0.1%~99.9%

TTL/CMOS:
- Rising edge time: ≤28NS
- Low level: <0.3V
- High level: 1V~5V

Sawtooth Wave:
- Duty cycle >50.1%: Rising sawtooth
- Duty cycle <49.9%: falling sawtooth

Scanning:
- Sweep Mode: Sweep
- Scan time: 0.1S~999.9S
- Scan range: 0-MAX.FREQ

External Measurement Function:
- Frequency measurement range: 0.01HZ~60MHZ
- Minimum input voltage: 0.5VP-P
- Maximum allowable input voltage: 10VP-P
- Counting range: 0~4294967295
- Counting method: Manual
- Source selection: EXT.IN input (analog signal)

Storage:
- Quantity: 10
- Location: M0 to M9

Interface:
- Interface: USB to serial interface
- Communication rate: 57600BPS
- Communication protocol: The command line method is adopted, and the protocol is public

Others:
- Power supply: DC: 5V
- Product size: 200 x 170 x 70mm/7.9 x 6.7 x 2.8"
- Net weight (machine only): 518G/1.1LB

Functions:
1. Sine wave output. The output frequency is 100K, the peak-to-peak value is 10V, and the sine wave signal with zero offset.
2. Square waveform output. The output frequency is 100K, the peak-to-peak value is 10V, and the offset is zero.
3. Triangular waveform output. The output frequency is 100K, the peak-to-peak value is 10V, and the triangular wave signal with zero offset.
4. Ramp up sawtooth waveform output. The output frequency is 100K, the peak-to-peak value is 10V, and the offset is zero.
5. Reduced sawtooth waveform output. The output frequency is 100K, the peak-to-peak value is 10V, and the offset is zero.
6. Square wave angle waveform output. The output frequency of the square wave angle wave signal is 100K, the peak-to-peak value is 10V, the offset is +100%, and the duty cycle is 10%.
7. Square wave angle waveform output function. It has an output frequency of 100K, a peak-to-peak value of 10V, a bias of -100%, and a duty cycle of 90%.
8. Sine wave output. The output frequency of the sine wave signal is 3M, the peak-to-peak value is 10V, and the offset is zero.
9.High frequency small signal waveform output function. The output frequency of the sine wave signal is 3M, the peak-to-peak value is 10mV, and the offset is zero.
10. External trigger function. The oscilloscope comes with a 1K square wave signal, and outputs a 3-cycle sine waveform with a frequency of 100K through the external trigger function.

Applications:
- It can be used in electronic engineers, electronic laboratories, production lines. It is also an ideal testing and measurement equipment for teaching and scientific research.

Package Included:
- 1 x Signal Generator
- 1 x DC5V Power Adapter
- 1 x BNC-BNC Cable
- 1 x BNC-Small Connector Cable
- 1 x USB Cable with Square Connector