Class-D amplifier ICs, trying to decide between open and closed loop.

Jordan Christoff

Other Parts Discussed in Thread: TAS5709A, TAS5708, TAS5760M

Hello,

I am trying to decide if TAS5708 (closed loop) or TAS5709A (open loop) would be better fro my application. I do not need all the frills of the 5709A, but wonder if there is any downside to using the 5708 which appears to have lower THD with slightly noisy supplies.

Regards,

Jordan

over 9 years ago

0 Diego Melendez over 9 years ago

TI__Guru 57800 points

Hello Jordan,

Welcome to e2e.

We suggest you to take a look at new generation devices with even higher performance than the ones you mention, like TAS5760M.

This is a closed loop amplifier that has similar but enhanced features that makes it a great Class-D amplifier choice.

Thanks for your interest in TI products!,

Best Regards,

-Diego Meléndez López
Audio Applications Engineer

0 Jordan Christoff over 9 years ago

Prodigy 20 points

Diego,
Great suggestion, I like the TAS5760M much better. One question, why is it that the headphone amplifier cannot use the same I2S feed as the Class-D amplifier? Too bad, since it would be great to monitor the I2S source using the headphones.

Thanks,

Jordan Christoff
Visionary Solutions, Inc.
2060 Alameda Padre Serra, Suite 100
Santa Barbara, CA 93103
jchristoff@vsicam.com
805-845-8900 x112
805-845-8889 FAX
805-708-0654 Mobile

On 10/6/2014 3:00 PM, Diego Meléndez wrote:

Hello Jordan,

Welcome to e2e.

We suggest you to take a look at new generation devices with even higher performance than the ones you mention, like TAS5760M.

This is a closed loop amplifier that has similar but enhanced features that makes it a great Class-D amplifier choice.

Thanks for your interest in TI products!,

Best Regards,

-Diego Meléndez López
Audio Applications Engineer

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Class-D amplifier ICs, trying to decide between open and closed loop.