TDA8596_15 Datasheet, PDF (5/48 Pages) NXP Semiconductors – I2C-bus controlled 4 ´ 45 W power amplifier with symmetrical inputs

NXP Semiconductors
TDA8596
I²C-bus controlled 4 × 45 W power amplifier with symmetrical inputs
Table 3. Pin description …continued
Symbol
Pin
Description
PGND3
16
power ground channel 3
OUT3−
17
channel 3 negative output
OUT3+
18
channel 3 positive output
V_P1
19 and 20 supply voltage 1
SCL
21
I²C-bus clock input
GAINSEL
22
gain select input (legacy mode only)
OUT4−
23
channel 4 negative output
PGND4
24
power ground channel 4
OUT4+
25
channel 4 positive output
SDA
26
I²C-bus data input/output
SVR
27
half supply filter capacitor
ADSEL
28
I²C-bus address select
STB
29
standby (I²C-bus mode) or mode pin (legacy mode);
programmable second clip indicator
OUT2+
30
channel 2 positive output
PGND2
31
power ground channel 2
OUT2−
32
channel 2 negative output
DIAG
33
diagnostic/clip detection output
V_P2
34 and 35 supply voltage 2
TAB
36
heatsink connection; must be connected to ground
7. Functional description
The TDA8596 is a quad BTL audio power amplifier with symmetrical inputs, made in
BCDMOS technology. It contains four independent amplifier channels in BTL configuration
with complementary (PMOST/NMOST) output stages (see Figure 1). The status of each
amplifier channel (output offset, connected load, short circuit condition at output pins) can
be read out separately via the I²C-bus. The TDA8596 is protected against overvoltage on
the supply pins, short circuits at the output pins, overheating and loss-of-ground or
loss-of-V_P conditions.
The temperature pre-warning level and the clip detection levels can be programmed via
the I²C-bus. Further, the information that will be available on the diagnostic pins (i.e. DIAG
or STB) can be programmed. Three different I²C-bus addresses can be selected by
connecting a resistor to the ADSEL pin. In case the ADSEL pin is shorted to ground, the
TDA8596 operates in legacy mode. In this mode no I²C-bus is needed and the STB pin
will change from a two level pin (Standby mode and Operating mode) to a three level pin
(Standby, Mute operating and Normal operating mode).
TDA8596_2
Product data sheet
Rev. 02 — 8 November 2007
© NXP B.V. 2007. All rights reserved.
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