TB2913HQ View Datasheet(PDF) - Toshiba

Part Name

Description

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TB2913HQ

Maximum Power 47 W BTL × 4-ch Audio Power IC

Toshiba 

TB2913HQ(o)

4. Output Clip Detection Function (pin 25)

The output clip detection terminal of pin 25 has the open collector output structure on chip as shown in

Figure 6. In case that the output waveform is clipping, the clip detection circuit is operated and NPN Tr. is

turned on.

It is possible to improve the audio quality with controlling the volume, tone control circuit through L.P.F.

smoothing circuit as shown in Figure 7.

In case of being unused this function, use this IC as open connection on pin 25.

(Application)

5V

25

OUTPUT CLIP

DETECTOR

L.P.F.

SMOOTHING

CIRCUIT

VOLUME CONTROL CIRCUIT

TONE CONTROL CIRCUIT

pin 25: Open collector output (active low)

(A) Output (AC wave form)

AC

Figure 6

(A)

t

(B) Clip Detector Circuit

(internal)

DC

(B)

t

(B) Clip Detector Terminal

(pin 25)

DC

(C)

5V

GND

t

Figure 7 Clip Detection

5

2004-03-01

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