TDA7561 Datasheet, PDF (1/19 Pages) STMicroelectronics – MULTIFUNCTION QUAD POWER AMPLIFIER WITH BUILT-IN DIAGNOSTICS FEATURES

TDA7561
MULTIFUNCTION QUAD POWER AMPLIFIER
WITH BUILT-IN DIAGNOSTICS FEATURES
s DMOS POWER OUTPUT
s HIGH OUTPUT POWER CAPABILITY 4x25W/
4W @ 14.4V, 1KHZ, 10% THD, 4x35W EIAJ
s MAX. OUTPUT POWER 4x60W/2W
s FULL I2C BUS DRIVING:
– ST-BY
– INDEPENDENT FRONT/REAR SOFT PLAY/
MUTE
– SELECTABLE GAIN 26dB - 12dB (FOR LOW
NOISE LINE OUTPUT FUNCTION)
– I²C BUS DIGITAL DIAGNOSTICS
s FULL FAULT PROTECTION
s DC OFFSET DETECTION
s FOUR INDEPENDENT SHORT CIRCUIT
PROTECTION
s CLIPPING DETECTOR
s ESD PROTECTION
DESCRIPTION
The TDA7561 is a new BCD technology QUAD
BRIDGE type of car radio amplifier in Flexiwatt25
MULTIPOWER BCD TECHNOLOGY
MOSFET OUTPUT POWER STAGE
FLEXIWATT25
package specially intended for car radio applications.
Thanks to the DMOS output stage the TDA7561 has
a very low distortion allowing a clear powerful
sound.This device is equipped with a full diagnostics
array that communicates the status of each speaker
through the I²C bus.The possibility to control the con-
figuration and behaviour of the device by means of
the I²C bus makes TDA7561 a very flexible machine.
BLOCK DIAGRAM
CLK
DATA
V_CC1 V_CC2
CD_OUT
REFERENCE
THERMAL
PROTECTION
& DUMP
I2C BUS
MUTE1 MUTE2
CLIP
DETECTOR
F
IN RF
R
IN RR
F
IN LF
R
IN LR
SVR
D00AU1229
December 2002
AC_GND
12/26dB
12/26dB
12/26dB
12/26dB
RF RR LF LR
OUT RF+
SHORT CIRCUIT
PROTECTION &
DIAGNOSTIC
OUT RF-
OUT RR+
SHORT CIRCUIT
PROTECTION &
DIAGNOSTIC
OUT RR-
OUT LF+
SHORT CIRCUIT
PROTECTION &
DIAGNOSTIC
OUT LF-
OUT LR+
SHORT CIRCUIT
PROTECTION &
DIAGNOSTIC
TAB
PW_GND
OUT LR-
S_GND
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