LMX2571: wireless microphone system w/ LMX2571

Mike Wu1

Expert 2761 points

Part Number: LMX2571
Other Parts Discussed in Thread: LMX2572LP

Hi,

My customer wan to develop a wireless microphone system w/ LMX2571.

Does TI have document/reference design can help my customer to develop the system ?

over 5 years ago

0 Noel Fung over 5 years ago

TI__Guru** 106720 points

Hi Mike,

No, we don't have a reference design on this application.

0 1269946 over 5 years ago in reply to Noel Fung

Prodigy 40 points

sorry sir, I find the link for Professional microphones and wireless system integrated circuits and reference designs.

http://www.ti.com/solution/professional-microphones-wireless-systems?variantid=11733&subsystemid=18463

I want to know how the LMX2751 can be implemented.

0 Noel Fung over 5 years ago in reply to 1269946

TI__Guru** 106720 points

Hi there,

This page simply consolidated all the individual subsystem boards together. There is no software or hardware connecting them together.

0 1269946 over 5 years ago in reply to Noel Fung

Prodigy 40 points

Hi Noel,

What can be recommended for professional microphones and wireless system?

0 Noel Fung over 5 years ago in reply to 1269946

TI__Guru** 106720 points

Hi there,

Did you mean what component we recommended to build a wireless microphone product?

0 1269946 over 5 years ago in reply to Noel Fung

Prodigy 40 points

Hi Noel,

I need an RF Synthesizers to complete the digital data transmission and reception.

I started thinking about using the LMX2571 to implement FSK modulation.

0 Noel Fung over 5 years ago in reply to 1269946

TI__Guru** 106720 points

Hi there,

Right, LMX2571 is a good choice especially when you want to do the FSK in a digital way.

You can refer to the following apps note on the concept of how to do FSK modulation with LMX2571.

http://www.ti.com/lit/an/snaa309/snaa309.pdf

However, we don't have a complete reference design.

0 1269946 over 5 years ago in reply to Noel Fung

Prodigy 40 points

Hi Noel ,

Do you know LMX2571 that MAX data rate of FSK modulation?

0 Noel Fung over 5 years ago in reply to 1269946

TI__Guru** 106720 points

Hi There,

There is no max. rate on this function. However, the max. frequency deviation may be limited by the phase detector frequency and fractional denominator.

If that is the case, consider to use LMX2572LP, which can support a much wider freq deviation.

Clock & timing

Clock & timing forum

LMX2571: wireless microphone system w/ LMX2571