During the power-on of the circuit, if the delay resistance from pin 6 to ground is less than 2kΩ then the PT2399 may latch-up, which will make the chip to crash and stop. If a very short delay time is required, ensure that the delay resistance is greater than 2kΩ for the fi...
PT2399规格书
thedelaytime,italsofeaturesaninternalVCOcircuitinthesystemclock,thereby,makingthefre- quencyeasilyadjustable.PT2399boastofverylowdistortion(THD<0.5%)andverylownoise (No<-90dBV),thusproducinghighqualityaudiooutput.Thepinassignmentsandapplicationcircuit
and user can easy to change the VCO frequency by changing the external resistance. The PT2399 performs low distortion (THD<0.5%@0.5Vrms) and low noise (No<-90dBV) characteristic for audio purpose, and pin arrangement and application circuit are optimized for easy PCB layout and cost saving ad...
and user can easy to change the VCO frequency by changing the external resistance. The PT2399 performs low distortion (THD<0.5%@0.5Vrms) and low noise (No<-90dBV) characteristic for audio purpose, and pin arrangement and application circuit are optimized for easy PCB layout and cost saving ad...
APPLICATION CIRCUIT ECHO Note: External Resistor having a value of 10 KΩto 50 KΩmay be used. The recommended Resistor Value(R) is 10 KΩ. When the value of the Resistor (R) increases, the range of the Delay Time also increases. ...
delay time is determined by internal VCO clockfrequency, and user can easy to change the VCOfrequency by changing the external resistance. ThePT2399 performs low distortion(THD<0.5%@0.5Vrms) and low noise (No<-90dBV)characteristic for audio purpose, and pin arrangementand application circuit are...
ThePT2399is anage old Echo Processor ICfrom a manufacturer calledPrinceton. The IC has been extensively used in audio application to create digital delays and other modulations. It can commonly be found in Karaoke mixers and other toys requiring audio modulations. A sample application circuit for th...
(pin 5) using a fast MCU. This clock frequency can reach upwards of 22Mhz, which would for slower MCUs would necessitate the use of a prescaler circuit to bring it down by some factor. The ESP32 processor however has a 240Mhz processor with an 80Mhz 8 channel pulse counter on board....
1. R = VCO External Resistor (Ω), please refer to PT2399 Application Circuit. 2. fck = VCO Clock Frequency (Hz). 3. td = Delay Time 4. THD = Total Harmonic Distortion 5. We do not recommend the “R” value below 1Kꢀ when power on. V1.6 4 February 2010 PT2399 ...