Somebody used analog input TAS5630 chip?

I see analog input PWM amplifiers available, like TAS5630. I would like to ask if somebody tried this for amplifier design. As I see, these chips made for home theater and DVD players, but I would like to use it for vocal/keyboard amplification. Is this possible?
Datasheet: http://www.ti.com/product/tas5630

I noticed on TI's website that they recommend the "TAS5630b":http://www.ti.com/product/tas5630b for any new designs.

I have not used the part, but it looks like Class D amplifier so you should be able to use it for your project.

What is the difference the parts if one not recommended for new design? These chips recommended for home DVD/etc... systems. Maybe useful for instrument amplifications?

A part marked as "Not recommended for new design" is a part that is being phased out. If you want to use it for a "one off" design (i.e. for yourself or a friend, for example), then the impact of using such a part is low. The only drawback that I can think of is, if it fails at some later time, it might be difficult to get a replacement, so it might be wise to buy several backups.

BUT, if this is a design that you plan to put into production, then VERY not wise to use a part that is being phased out--for reasons that should be obvious. You put all that work and capital into you design and then can't get the part in the volumes you need to deliver your product to market.

One other drawback that I thought of for the "one off" case is, if down the road, your design generates interest among friends and family, and they want you to make one for them, it might be a problem if you can't get the part.

Thanks Steve. Now I understand the NRND. But If I design PCB for TAS5630 what is NRND, I can replace with 5630b what is exactly same.

The another thing, what if I want to use this part for instrument amplification, not for home like DVD systems?

Don't know if you can replace the 5630 w/ 5630b. I'd have to study the data sheets to see what is different. Also, I'd need to know what your application is. But, don't have time for that now.

Also, don't have answer for the second question, either...anybody?

On the Ti webpage: "The device is an EXACT EQUIVALENT in functionality and parametrics to the compared device.". I think the 5630 and 5630b can be changed.

The difference between the datasheet of chips is on the page 10. The 5630 offers 2 ohm speaker impedance with clipped out signal, this is 600W. This row missing from the datasheet of 5630b, the maximum output power is 400W on 3 Ohm impedance. But 2 Ohm available with unclipped output signal with 480W, this is maybe failure?

The another difference is the output offset voltage on the page 9. This is typ/max 40/150 mV on the 5630, 20/50 mV on the 5630b what is much better.