SC5389 查看數據表（PDF） - Silan Microelectronics

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SC5389

5-MODE PRESET EQUALIZER IC WITH BASS BOOSTER & 3D EFFECTS

Silan Microelectronics 

Silan

Semiconductors

SC5389

TREBLE AND BASS ADJUSTMENTS

It is general knowledge that different individuals have different listening preferences. The application circuit of

SC5389 included in this specification has been designed for the taste general listening public; however, you can

make the necessary adjustment to suit your personal taste. Please refer to the sections below.

Treble Adjustment

The Treble adjustment is made by changing the value of the 2 capacitors connected between TL and OUTL. Please

refer to the diagram below.

+12

+11

+10

+9

+8

+7

+6

+5

+4

dB +3

+2

+1

0

-1

-2

-3

-4

20

1800pF

1500pF

1200pF

50 100 200

500 1k

2k

Hz

5k 10k 20k

TL-OUTL Capacitors vs. Frequency Response

As the capacitor value becomes bigger, the treble of the gain frequency curve is shifted down. Likewise, as the

capacitor value becomes smaller, the treble gain frequency curve shifts the opposite direction. Referring to the

diagram above, we see that at 6dB, different capacitor values exhibit different frequency responses. Capacitor value

1800pF has a lower frequency gain response than 1200pF capacitor.

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 1.0

2000.12.31

7

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