The input pulse level of 5V 12V 24V and can be directly input without string resistor. But the input signal frequency should be maintained for more than 0.5 seconds, and the output current is 5mA. The optical isolate is used in the input end of the signal to ensure the anti-interference ability.
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Douk Audio HiFi ESS9038Q2M+AK4493 USB DAC Audio Adapter COAX/OPT Digital to Analog Converter DSD256 DAC-Q11
Aliexpress UK
Input pulse level of 5V 12V 24V can be input directly without string resistance.But the input signal frequency, to maintain more than 0.5 seconds, the output current is 5mA. 1 x Converter Module. The optical isolate is used to ensure the anti-interference ability of the signal input.
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4Pcs AD831 High Frequency Transducer RF Mixer Module 0.1-500Mhz Bandwidth RF Frequency Converter
Aliexpress UK
Input frequency range: 0-1KHZ. F: A input frequency signal. Input level can be 5V, 12V, 24V, serial resistor not needed. The module accuracy is 1%, and it cannot be applied to fields which has high demanding of precision.
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AD831 High Frequency RF Mixer Module 1 -500MHz Bandwidth Dual Balanced Mixer Single Chip Radio Frequency Converter
Aliexpress UK
Frequency: 0 to 10KHZ. 10KHZ = 10V. Input pulse level is 5V 12V 24V, which can be directly entered without serial resistor. The input signal frequency must maintain more than 0.5 seconds. Input pulse level: 5V 12V 24V.
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ADL5801 10Mhz-6Ghz MIX Active Frequency Mixer Module RF Mixer Double Balanced Mixer Cable Broadband Up-Converter/Down-Converter
Aliexpress UK
F: Input frequency pulse signal. Output Frequency Range: 0-10KHz. Input and Output Correspond GND: Output ground. COMPACT SIZE: The conversion board has a compact size, with mounting holes, easy to install and does not take up space.
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2 in 1 Aviation Band to Shortwave Frequency Converter with High Impedance Amplifier 118MHz-138MHz Input Range for Radio Listeni
Aliexpress UK
10V = 10KHz. FOUT: frequency output port (general frequency output port). OCOUT: signal collector output port (use this output port when matching the driver). Correspondence between input and output.
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Fosi Audio Q5 DAC Converter USB Digital-to-Analog Adapter ESS9018K2M Decoder & Headphone Amplifier & Mini Stereo Preamplifier
Aliexpress UK
We are here to help and will do our best to resolve any issues. 9:30 AM to 6:30 PM (IST). weight: 130 gm. made in u.s.a.
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PCM1802 Audio Stereo A/D Converter ADC Decoder 24bit 96kHz Digital PCM AV Amplifier Player Board ANALOG-INPUT Module 3.3V/5V
Aliexpress UK
200Hz 5V 10V. The input pulse level of 5V 12V 24V can be directly input, without string resistance. However, the input signal frequency should be maintained for more than 0.5 seconds.The output current is 5mA.
eBay
Douk Audio HiFi ESS9038Q2M+AK4493 USB DAC Audio Adapter COAX/OPT Digital to Analog Converter DSD256 DAC-Q11
Aliexpress UK