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ST Microelectronics - MULTIFUNCTION QUAD POWER AMPLIFIER WITH BUILT-IN DIAGNOSTICS FEATURES

Numéro de référence TDA7564
Description MULTIFUNCTION QUAD POWER AMPLIFIER WITH BUILT-IN DIAGNOSTICS FEATURES
Fabricant ST Microelectronics 
Logo ST Microelectronics 





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TDA7564 fiche technique
TDA7564
MULTIFUNCTION QUAD POWER AMPLIFIER
WITH BUILT-IN DIAGNOSTICS FEATURES
s DMOS POWER OUTPUT
s NON-SWITCHING HI-EFFICIENCY
s HIGH OUTPUT POWER CAPABILITY 4x28W/4
@ 14.4V, 1KHZ, 10% THD, 4x40W EIAJ
s MAX. OUTPUT POWER 4x72W/2
s FULL I2C BUS DRIVING:
– ST-BY
– INDEPENDENT FRONT/REAR SOFT PLAY/
MUTE
– SELECTABLE GAIN 26dB - 12dB (FOR
LOW NOISE LINE OUTPUT FUNCTION)
– HIGH EFFICIENCY ENABLE/DISABLE
– I2C BUS DIGITAL DIAGNOSTICS
s FULL FAULT PROTECTION
s DC OFFSET DETECTION
s FOUR INDEPENDENT SHORT CIRCUIT
PROTECTION
s CLIPPING DETECTOR (2% - 10%)
PROTECTION
DESCRIPTION
The TDA7564 is a new BCD technology QUAD
BRIDGE type of car radio amplifier in Flexiwatt25
package specially intended for car radio applica-
BLOCK DIAGRAM
MULTIPOWER BCD TECHNOLOGY
MOSFET OUTPUT POWER STAGE
FLEXIWATT25
ORDERING NUMBER: TDA7564
tions. Thanks to the DMOS output stage the
TDA7564 has a very low distortion allowing a clear
powerful sound. Among the features, its superior
efficiency performance coming from the internal
exclusive structure, makes it the most suitable de-
vice to simplify the thermal management in high
power sets.The dissipated output power under av-
erage listening condition is in fact reduced up to
50% when compared to the level provided by con-
ventional class AB solutions.This device is
equipped with a full diagnostics array that commu-
nicates the status of each speaker through the I2C
bus.The possibility to control the configuration and
behaviour of the device by means of the I2C bus
makes TDA7564 a very flexible machine.
THERMAL
PROTECTION
& DUMP
CLK DATA
I2CBUS
MUTE1 MUTE2
VCC1 VCC2
REFERENCE
CLIP
DETECTOR
CD_OUT
IN RF
IN RR
IN LF
IN LR
SVR
12/26dB
SHORT CIRCUIT
PROTECTION &
DIAGNOSTIC
12/26dB
SHORT CIRCUIT
PROTECTION &
DIAGNOSTIC
12/26dB
SHORT CIRCUIT
PROTECTION &
DIAGNOSTIC
AC_GND
12/26dB
SHORT CIRCUIT
PROTECTION &
DIAGNOSTIC
TAB S_GND
RF RR LF LR
PW_GND
OUT RF+
OUT RF-
OUT RR+
OUT RR-
OUT LF+
OUT LF-
OUT LR+
OUT LR-
D00AU1211
September 2003
1/20

PagesPages 20
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