TDA8511J/N1 데이터 시트보기 (PDF) - Philips Electronics

부품명

상세내역

제조사

TDA8511J/N1

4×13 W single-ended power amplifiers

Philips Electronics 

Philips Semiconductors

4 × 13 W single-ended power amplifiers

Preliminary specification

TDA8511J

PINNING

SYMBOL

IN1

SGND

IN2

RR

VP1

OUT1

GND1

OUT2

n.c.

OUT3

GND2

OUT4

VP2

MODE

IN3

VDIAG

IN4

PIN

DESCRIPTION

1 input 1

2 signal ground

3 input 2

4 supply voltage ripple rejection

5 supply voltage

6 output 1

7 power ground 1

8 output 2

9 not connected

10 output 3

11 power ground 2

12 output 4

13 supply voltage

14 mode select switch input

15 input 3

16 diagnostic output

17 input 4

handbook, halfpage

IN1 1

SGND 2

IN2 3

RR 4

VP1 5

OUT1 6

GND1 7

OUT2 8

n.c. 9 TDA8511J

OUT3 10

GND2 11

OUT4 12

VP2 13

MODE 14

IN3 15

VDIAG 16

IN4 17

MGL498

Fig.2 Pin configuration.

FUNCTIONAL DESCRIPTION

The TDA8511J contains four identical amplifiers and can

be used for single-ended applications. The gain of each

amplifier is fixed at 20 dB. Special features of the device

are:

• Mode select switch (pin 14)

• Diagnostic output (pin 16).

Mode select switch (pin 14)

• Low standby current (<100 µA)

• Low switching current (low cost supply switch)

• Mute facility.

To avoid switch-on plops, it is advised to keep the amplifier

in the mute mode during ≥100 ms (charging of the input

capacitors at pin 1, 3, 15 and pin 17).

This can be achieved by:

• Microprocessor control

• External timing circuit (see Fig.7).

Diagnostic output (pin 16)

DYNAMIC DISTORTION DETECTOR (DDD)

At the onset of clipping of one or more output stages, the

dynamic distortion detector becomes active and pin 16

goes LOW. This information can be used to drive a sound

processor or DC volume control to attenuate the input

signal and thus limit the distortion. The output level of

pin 16 is independent of the number of channels that are

clipping (see Fig.3).

2000 Mar 10

4

Share Link: