STA550 datasheet(1/16 Pages) STMICROELECTRONICS

部件名	STA550

功能描述	70&0W STEREO BASH POWER AMPLIFIER

PDF	16 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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STA550

July 2003

s

MONOCHIP BRIDGE STEREO AMPLIFIER

FOR BASH

® ARCHITECTURE

s

55+55W OUTPUT POWER @ RL = 4/8 Ω,

THD = 0.5%

s

70+70W OUTPUT POWER @ RL = 4/8 Ω,

THD = 10%

s

HIGH DYNAMIC PREAMPLIFIER INPUT

STAGES

s

EXTERNAL PROGRAMMABLE FEEDBACK

TYPE COMPRESSORS

s

AC COUPLED INPUT TO CLASS AB BRIDGE

OUTPUT AMPLIFIER

s

PRECISION RECTIFIERS TO DRIVE THE

DIGITAL CONVERTER

s

ON-OFF SEQUENCE/ TIMER WITH MUTE

AND STANDBY

s

PROPORTIONAL OVER POWER OUTPUT

CURRENT TO LIMIT THE DIGITAL

CONVERTER

s

ABSOLUTE POWER BRIDGE OUTPUT

TRANSISTOR POWER PROTECTION

s

ABSOLUTE OUTPUT CURRENT LIMIT

s

INTEGRATED THERMAL PROTECTION

s

POWER SUPPLY OVER VOLTAGE

PROTECTION

s

FLEXIWATT POWER PACKAGE WITH 27 PIN

s

BASH® LICENCE REQUIRED

DESCRIPTION

The STA550 is a fully integrated power module de-

signed to implement a BASH® amplifier when used

in conjunction with STABP01 digital processor.

FLEXIWATT27

70+70W STEREO

POWER AMPLIFIER

BLOCK DIAGRAM

ABSOLUTE

VALUE

BLOCK

OUTPUT BRIDGE

PEAK/2

DETECTOR

VOLTAGE

PROTECTION

SOA

DETECTOR

TURN-

ON/OFF

SEQUENCE

THERMAL

PROTECTION

PEAK/2

DETECTOR

COMPRESSOR

∆G

+2

-1

∆G

+

-

V/l

S1

Ict

ABSOLUTE

VALUE

BLOCK

+

-

S1

OUTPUT BRIDGE

CD-2

CD+2

STBY/MUTE

PROT.

CD+

CD-1

OUT1-

OUT1+

CD+1

IN_PRE1

ATT_REL1

TRK_OUT

THRESH

ATT_REL2

IN_PRE2

PWR_INP1

TRK_1

OUT_ PRE1

-VS

GND

+VS

PWR_INP2

D01AU1263

TRK_2

OUT_ PRE2

OUT2-

OUT2+

+2

-1

类似零件编号 - STA550

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