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Altera_Forum
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15 years ago

using lvds

G´day !! I´m using an ADC with differential output (LVDS). It´s a device including 8 ADCs with Serial LVDS output. Data from each ADC is serialized and provided on a seperate channel. This seri...
Altera_Forum's avatar
Altera_Forum
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9 years ago

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Jerry,

I haven't used altlvds, way too complicated for me :)

I assumed you were writing your own deserialiser.

Regards,

Josy

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Hi Josy,

I remember that you used AD9222 deivces. How about the ADC's dirving circuit design? I'm thinking about these circuit. Our previous design used AD9218, and AD8138 as ADC's driver. However, for multi-channels LVDS output ADCs, ADI doesn't recommend using amplifiers as driver. The reason is that:"the noise of performance of most amplifiers is not adequate to achieve the true performance of the AD9222/AD9633/AD9681." Our application is of dc-coupled, so amplifiers are very suited for our app.

Do you think the transformer coupled configuration is belone of DC-coupled desgin?