TDA8594_15 Datasheet, PDF (39/49 Pages) NXP Semiconductors – I2C-bus controlled 4  50 W power amplifier

NXP Semiconductors
13. Application information
TDA8594
I²C-bus controlled 4  50 W power amplifier
8.5 V
10 kΩ
STB 2
RADSEL
(2)
ADSEL
1
SDA SCL
26 23
STANDBY/
FAST MUTE
I²C-BUS
INTERFACE
V_P1
V_P2
21
7
CLIP DETECT/DIAGNOSTIC
5V
10 kΩ
5 DIAG
RS ^{470 nF}
IN1 12
(1)
1.8 nF
RS ^{470 nF}
IN3 16
(1)
1.8 nF
RS ^{470 nF}
IN2 13
(1)
1.8 nF
RS ^{470 nF}
IN4 15
(1)
1.8 nF
V_P
MUTE
26 dB/
16 dB
MUTE
26 dB/
16 dB
MUTE
26 dB/
16 dB
MUTE
26 dB/
16 dB
PROTECTION/
DIAGNOSTIC
PROTECTION/
DIAGNOSTIC
PROTECTION/
DIAGNOSTIC
PROTECTION/
DIAGNOSTIC
10 OUT1+
8 OUT1−
18 OUT3+
20 OUT3−
6 OUT2+
4 OUT2−
22 OUT4+
24 OUT4−
27 TAB
TDA8594
11
SVR
(2)
22 μF
14
SGND
17
ACGND
(3)
2.2 μF
9
3
19
PGND1 PGND2 PGND3
25
PGND4
001aad132
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
TDA8594
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 11 June 2013
© NXP B.V. 2013. All rights reserved.
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