Author Topic: Phono output on TV  (Read 675 times)

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Offline chagliTopic starter

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Phono output on TV
« on: April 06, 2019, 11:19:16 am »
Hello,

I would like to plug a headphone on my TV without disabling the buit-in loudspeakers.

The conventional headphone output doesn't work without disabling the sound so I tried the phono output. Obviously, this output is not designed to drive a headphone because the level was too low.

I thought I could add a small amplifier and then plug the headphone.
But I don't know the voltage level and the output impedance of such an output.

Do you think it will do the job and have you any idea of the specs of this output ?

Thank you !
 

Offline stj

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Re: Phono output on TV
« Reply #1 on: April 06, 2019, 11:34:13 am »
phono levels are sort-of standardised.
i think it's 500mV 10k
been a long time since i did audio work, so you may want to double-check that.
 

Offline soldar

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Re: Phono output on TV
« Reply #2 on: April 06, 2019, 11:44:46 am »
Have a look at the circuit in page 12 of https://datasheets.maximintegrated.com/en/ds/MAX9725.pdf
All my posts are made with 100% recycled electrons and bare traces of grey matter.
 

Offline chagliTopic starter

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Re: Phono output on TV
« Reply #3 on: April 06, 2019, 12:01:07 pm »
Thanks !
 
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