STA575
100+100W STEREO
s
POWER AMPLIFIER
s
s
s
s
s
s
s
s
s
MONOCHIP BRIDGE STEREO AMPLIFIER
ON BASH
廬
ARCHITECTURE
80+80W OUTPUT POWER @ R
L
= 4/8
鈩?
THD = 0.5%
100+100W OUTPUT POWER @ R
L
= 4/8
鈩?
THD = 10%
HIGH DYNAMIC PREAMPLIFIER INPUT
STAGES
EXTERNAL PROGRAMMABLE FEEDBACK
TYPE COMPRESSORS
AC COUPLED INPUT TO CLASS AB BRIDGE
OUTPUT AMPLIFIER
PRECISION RECTIFIERS TO DRIVE THE
DIGITAL CONVERTER
ON-OFF SEQUENCE/ TIMER WITH MUTE
AND STANDBY
PROPORTIONAL OVER POWER OUTPUT
CURRENT TO LIMIT THE DIGITAL
CONVERTER
ABSOLUTE POWER BRIDGE OUTPUT
FLEXIWATT27
s
s
s
s
s
TRANSISTOR POWER PROTECTION
ABSOLUTE OUTPUT CURRENT LIMIT
INTEGRATED THERMAL PROTECTION
POWER SUPPLY OVER VOLTAGE
PROTECTION
FLEXIWATT POWER PACKAGE WITH 27 PIN
BASH廬 LICENCE REQUIRED
DESCRIPTION
The STA575 is a fully integrated power module de-
signed to implement a BASH廬 amplifier when used
in conjunction with STABP01 digital processor.
BLOCK DIAGRAM
+VS
GND
-VS
OUT_ PRE1
TRK_1
PWR_INP1
+
-
IN_PRE1
COMPRESSOR
鈭咷
ABSOLUTE
VALUE
BLOCK
CD+1
+2
OUT1+
-1
OUT1-
OUTPUT BRIDGE
ATT_REL1
V/l
CD-1
CD+
PEAK/2
DETECTOR
Ict
VOLTAGE
PROTECTION
S1
SOA
DETECTOR
PROT.
TRK_OUT
THRESH
THERMAL
PROTECTION
TURN-
ON/OFF
SEQUENCE
Ict
STBY/MUTE
S1
PEAK/2
DETECTOR
ATT_REL2
V/l
CD+2
COMPRESSOR
+2
鈭咷
-
+
-1
ABSOLUTE
VALUE
BLOCK
OUT2-
OUT2+
IN_PRE2
OUTPUT BRIDGE
CD-2
OUT_ PRE2
TRK_2
PWR_INP2
D01AU1263
July 2003
1/20