TDA8594 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 5 — 11 June 2013 39 of 49
NXP Semiconductors
TDA8594
I
2
C-bus controlled 4 50 W power amplifier
13. Application information
For EMC reasons, a 10 nF capacitor (not shown) can be added from each amplifier output to ground.
(1) For EMC reasons a capacitor of 1.8 nF from the input pin to SGND is advised (optional).
(2) The SVR and ACGND capacitors and the R
ADSEL
resistor should first be connected to SGND before connecting to PGNDn
pins.
(3) ACGND capacitor value must be close to 4 input capacitor value; 4 470 nF capacitors can be used as an alternative to the
2.2 F capacitor shown.
Fig 29. Test and application diagram
001aad132
STANDBY/
FAST MUTE
I
2
C-BUS
INTERFACE
CLIP DETECT/DIAGNOSTIC
MUTE
PROTECTION/
DIAGNOSTIC
26 dB/
16 dB
PROTECTION/
DIAGNOSTIC
26 dB/
16 dB
PROTECTION/
DIAGNOSTIC
26 dB/
16 dB
PROTECTION/
DIAGNOSTIC
26 dB/
16 dB
MUTE
MUTE
MUTE
5
10
8
18
20
6
4
22
24
27
17 9
14
SGNDSVR
(2)
22 μF
(3)
2.2 μF
R
ADSEL
SDA
(2)
ADSEL
V
P1
V
P2
IN4
IN2
IN3
IN1
STB
R
S
470 nF
(1)
1.8 nF
(1)
1.8 nF
(1)
1.8 nF
(1)
1.8 nF
10 kΩ
10 kΩ
8.5 V
ACGND
PGND1 PGND3 PGND4
11
15
13
16
12
1
26
SCL
23 21 7
2
3 19 25
DIAG
OUT1+
OUT1−
OUT3+
OUT3−
OUT2+
OUT2−
OUT4+
OUT4−
TAB
V
P
PGND2
TDA8594
R
S
470 nF
R
S
470 nF
R
S
470 nF
5 V
