STA575 Datasheet, PDF (1/20 Pages) STMicroelectronics – 100+100W STEREO BASH POWER AMPLIFIER

STA575
100+100W STEREO
POWER AMPLIFIER
s MONOCHIP BRIDGE STEREO AMPLIFIER
ON BASH^® ARCHITECTURE
s 80+80W OUTPUT POWER @ R_L = 4/8 Ω,
THD = 0.5%
s 100+100W OUTPUT POWER @ R_L = 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
FLEXIWATT27
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 STA575 is a fully integrated power module de-
signed to implement a BASH® amplifier when used
in conjunction with STABP01 digital processor.
BLOCK DIAGRAM
+VS GND -VS
OUT_ PRE1 TRK_1 PWR_INP1
IN_PRE1
ATT_REL1
TRK_OUT
THRESH
ATT_REL2
IN_PRE2
+
-
∆G
COMPRESSOR
V/l
S1
PEAK/2
DETECTOR
Ict
ABSOLUTE
VALUE
BLOCK
+2
-1
OUTPUT BRIDGE
VOLTAGE
PROTECTION
SOA
DETECTOR
CD+1
OUT1+
OUT1-
CD-1
CD+
PROT.
Ict
S1
PEAK/2
DETECTOR
THERMAL
PROTECTION
TURN-
ON/OFF
SEQUENCE
STBY/MUTE
V/l
COMPRESSOR
∆G
-
+
ABSOLUTE
VALUE
BLOCK
+2
-1
OUTPUT BRIDGE
CD+2
OUT2+
OUT2-
CD-2
OUT_ PRE2 TRK_2 PWR_INP2
D01AU1263
July 2003
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