LM4752

www.ti.com

SNAS006E – FEBRUARY 1999 – REVISED APRIL 2013

Figure 44. Bridge-Mode Application

Figure 45. THD+N vs. POUT for Bridge-Mode Application

PREVENTING OSCILLATIONS

With the integration of the feedback and bias resistors on-chip, the LM4752 fits into a very compact package.

However, due to the close proximity of the non-inverting input pins to the corresponding output pins, the inputs

should be AC terminated at all times. If the inputs are left floating, the amplifier will have a positive feedback path

through high impedance coupling, resulting in a high frequency oscillation. In most applications, this termination

is typically provided by the previous stage's source impedance. If the application will require an external signal,

the inputs should be terminated to ground with a resistance of 50 k

Ω or less on the AC side of the input coupling

capacitors.

Copyright © 1999–2013, Texas Instruments Incorporated

Submit Documentation Feedback

17

Product Folder Links: LM4752