STA550 Просмотр технического описания (PDF) - STMicroelectronics

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Компоненты Описание

производитель

STA550

70+70W STEREO BASH POWER AMPLIFIER

STMicroelectronics 

Figure 1. Connection Diagram between STA550 and STAbp01

STA550

490

PROTECTION

2K

1K

490

6.82K

EMI BARRIER

OPTIONAL

10K

+10V

2K

4.99K

2200pF

1K

2.67K

499K

CD+

100K

10V

CLOCK

COMP

VFB

V+

GATE

10pF

CURRENT_SENSE

680pF

FA IN

BUFFER IN

STABP01

VREF

1V

UVLO: 7V = on

5V = off

-

QR

+

INTERNAL

CIRCUIT

ON

Q

S

1V

-

+

250Hz

1V

10

+

1V -

4

ERROR

3

- AMP

2

+

CURRENT SENSE

2R

COMPARATOR

-

COMP/3

+

R

5

DISCHARGE

(RESET)

TRANSISTOR

+

-

1V

19

BUFFER

20 +

-

+

-

R17

FAST ATTACK

CONTROL

+-

SOFT SWITCH

QQ

SR

CLK D

Q

Q

RESET

SQ

RQ

PWM LATCH

ONE SHOT

SIGNAL

CLK Q

10V

D

Q

RESET

1

BUFFER OUT

R

18

REC_OUT

1V

16

ONE SHOT

17

DUTY ACCEL

1V

10V

+10V

14 POWER SUPPLY1

- 1V

+

+

-

1V

13

OUTPUT

12 GROUND1

11

SOFT SW RESET

1V 6

7

DEAD TIME

POWER_VS2

8 OUTPUT

GATE

9 GROUND2 ISENSE

10V

1V

-+

15

OPEN DRAIN

OUTPUT

ONE

SHOT

DELAY

ISENSE

CD+

CD-

8

IN_PRE1

3

ATT_REL1

+25V

95K

15K

100pF

+25V

680pF

TRK_OUT 16

17

THRESH

OTHER

STA575

TRK-OUT

25

ATT_REL2

1000pF

20

IN_PRE2

2.43K

2.55K

GND-AUDIO

GND

+VS

-VS

14

27

+

-

COMPRESSOR

V/l

OUT_ PRE1

9

∆G

S1

Ict

PEAK/2

DETECTOR

TRK_1

PWR_INP1

10

7

ABSOLUTE

VALUE

+2

BLOCK

-1

OUTPUT BRIDGE

VOLTAGE

PROTECTION

SOA

DETECTOR

Ict

S1

PEAK/2

DETECTOR

V/l

COMPRESSOR

∆G

-

+

19

OUT_ PRE2

THERMAL

PROTECTION

TURN-

ON/OFF

SEQUENCE

ABSOLUTE

VALUE

BLOCK

+2

-1

OUTPUT BRIDGE

18

TRK_2

21

PWR_INP2

GND

13

CD+1

6

OUT1+

4

OUT1-

5

CD-1

2

15 CD+

RSENSE

EMI BARRIER

OPTIONAL

12 PROT.

PROTECTION

OTHER

STA575

PROTECTION

STBY/MUTE

11

STA575

CD+2

22

OUT2+

24

OUT2-

23

CD-2

26

RSENSE

D02AU1391

3/16

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