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TDA8566_6 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 06 — 15 October 2007 3 of 21
NXP Semiconductors
TDA8566
2 × 40 W/2 Ω stereo BTL car radio power amplifier
5. Block diagram
(1) Pin HEATTAB is available in TDA8566TH1 only.
Fig 1. Block diagram
C
M
V
A
(9×)
2.3 kΩ
2.3
kΩ
mute
switch
C
M
V
A
V
A
1×
standby
reference
voltage
standby
switch
mute
reference
voltage
V
ref
mute
switch
CLIP
(9×)
2.3 kΩ
2.3
kΩ
60
kΩ
60
kΩ
60
kΩ
60
kΩ
mute
switch
C
M
V
A
(9×)
2.3 kΩ
2.3
kΩ
mute
switch
C
M
V
A
TDA8566
V
P2
V
P1
PGND2 PGND1
OUT2−
OUT2+
OUT1−
OUT1+
IN1−
IN1+
IN2−
IN2+
SGND
HEATTAB
(1)
n.c.
DIAG
MODE
CLIP
mgu358
(9×)
2.3 kΩ
2.3
kΩ
mute
switch
DIAG