7490 데이터 시트보기 (PDF) - STMicroelectronics

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7490

25W + 25W STEREO CLASS-D AMPLIFIER 50W MONO IN BTL

STMicroelectronics 

PIN CONNECTION (Top view)

TDA7490

1

25

D97AU816B

PIN FUNCTIONS

N.

Name

1

-VCC sign/sub

2

-VCCpow1

3

out 1

4

+VCCpow1

5

BOOT1

6

STBY-MUTE

7

FEED1

8

OSC

9

FEED2

10

IN1

11

T1

12

+5V

13

GND

14

CURREF

15

T2

16

-5V

17

FEED3

18

IN2

19

FEED4

20

NC

21

BOOT2

22

+VCCpow2

23

OUT2

24

-VCCpow2

25

Vreg

Function

Negative signal/substrate supply

Negative power supply CH1

PWM output of CH1

Positive power supply CH1

Bootstrap CH1

Control State Pin

Feedback pin 1 CH1

Master Oscillator Setting Freequency Pin (or external sync.)

Feedback pin2 CH1

Input CH1

Triangular waveform CH1

+5V regulator (only for internal purposes)

Signal ground

Setting current resistor

Triangular waveform CH2

-5V regulator (only for internal purposes)

Feedback pin1 CH2

Input CH2

Feedback pin2 CH2

Not connected

Bootstrap CH2

Positive power supply CH2

PWM output of CH2

Negative power supply CH2

10V regulator

3/9

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