PT Datasheet, PT 6-Channel Electronic Volume Controller Datasheet, buy PT Volume Controller. Part Summary. Manufacturer, Princeton Technology Corp. Manufacturer’s Part Number, PT Manufacturer’s Web Site, Futurlec Part. PT is a 6-Channel Electronic Volume Controller IC utilizing CMOS Technology specially designed for the new generation of AV Multi-Channel Audio.
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Increase the series resistor to K or more, and put a capacitor in series with it 0.
PT2258 DIP-20 6-ch electronic volume control
Gentlemen may prefer Blondes, but Real Men prefer Redheads! Do any of you have a good choice that is simple py2258 interface with the arduino? Unfortunately, it isn’t clear.
Being in strange waters and utterly clueless I didnt want to take risk. I’ve tried before, but I didn’t got it working, so I gave up, and got the MCP, which is not working anymore. To make life easier for anyone who can help, here’s the datasheet http: According to the datasheet, pt2285 i2c address should be 0x80 both address code1 and code2 pt22558 conneced to gndbut the i2c scanner find an i2c device at the address 0x Just going through datasheet and trying to understand when I stumbled upon this Datasheet “Every byte transmitted to the SDA Line consists of 8 ptt2258.
Are you sure you are feeding a tone into it? You could try sending the commands to set the volume of channel 1 instead after sending the C0 command to initialize the device.
If you want to take a look, I can put a link to the datasheet http: Yeah I know it’s has been a long time some one has posted here,but I just bought the chip so Have you consider running a I2C scanner to know what was going on under the hood? Please do not ask for unpaid help via PM, use the forum. I haven’t got one of those chips to play with so I can only go by what is in the datasheet which is not as clear as it could be. After sending C0 to initialize the device, you must send a command to set the volume on the desired channel, because in the words of the datasheet “If a register does has not been set, it is possible that no sound will be output”.
Everything works with smoke.
Removing the low order bit gives which in hex is 0x46 and that is the address you would specify to the Wire. Regarding addresses 0x40 vs 0x80, it looks like the datasheet is specifying it as an 8-bit address instead of the more usual 7-bit address, See http: I can see a few issues with that circuit: It appears to me that you have been given help to use that controller already in ptt2258 http: The code in your reply 6 looks OK to me now.
It’s an I2C device, so it should be straightforward to interface it to an Arduino.
It always takes longer than you expect, even when you take into account Hofstadter’s Law. If im going to change the volume from dB to dB, the arduino need to transfer the hexadecimal value based on the current volume.
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The addresses shown in the datasheet are NOT how they are specified to Wire. I know it’s great for amplifiers. As we fight our way northward into the great unknown, only that one thing remains certain I saw the wrong address, and it’s fixed. I’ve tried your code, but I couldn’t communicate with it for some reason, so I’m trying “bare bone” besides the Wire library I’m also running a library providing a square wave generator running at hz through a resistor.
Yesterday the chip just stopped working, so i’m looking for a new volume controller. What’s your issue with the PT? For example the address 0x8C in binary is This is my current setup.
This piece of the code doesn’t look right: I think you will need more than a resistor between the Arduino output and the device input – you will need an attenuator i. I’ve tried both address, but none of them works.
Thanks Pete this just flew over my head, what query can i search on google to read more on this no programming background here, just a designer trying to fulfill his lust for making things Any view on the no sound problem. I want the code to be something like this: Is the device connected to the output a speaker, or an amplifier? Formal verification of safety-critical software, software development, and electronic design and prototyping.
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PT Not found in I2C scanning. Nick Gammonfirstly the address code is not what was written in datasheet 0x40 instead of 80h as per datasheet am i reading something wrong here Secondly after i found and used some code from this good fellow. I’ve previously installed a dual 10k digital potmeter, MCP, but I’ve got a lot of problem that it often affect the sound, lt2258 it really noisy.