When adjusted for maximum boost in the usual application

circuit, the LM1036 cannot give additional boost from the

loudness control with reducing gain. If it is required, some

additional boost can be obtained by restricting the tone con-

trol range and modifying C

lustrating this for the case of bass boost is shown in Figure

13. The resulting responses are given in

Figure 14 showing

the continuing loudness control action possible with bass

boost previously applied.

USE OF THE LM1036 ABOVE AUDIO FREQUENCIES

The LM1036 has a basic response typically 1 dB down at

250 kHz (tone controls flat) and therefore by scaling C

C

quency range for possible use in wide band equalization ap-

plications. As an example

Figure 15 shows the responses

obtained centered on 10 kHz with C

µF and

C

DS005142-16

FIGURE 13. Modified Application Circuit for Additional Bass Boost with Loudness Control

DS005142-17

FIGURE 14. Loudness Compensated Volume

Characteristic

DS005142-18

FIGURE 15. Tone Characteristic (Gain vs Frequency)

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