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October 2014 DocID025017 Rev 4 1/10
TDA7802
High efficiency digital input quad power amplifier with built-in
diagnostics features, ’start stop’ compatible
Data brief
Features
24-bit resolution
110 dB dynamic range (A-weighted)
SB-I (SB - improved) high efficiency operation
the highest ’non - class D’ efficiency
1 Ohm driving capability (only in PowerSO36
package)
– High output power capability:
4 x 28 W 4Ω@ 14.4 V, 1 kHz, THD = 10 %
– Max output power: 4 x 72 W 2 Ω
Flexible mode control:
– Full I2C bus driving 1.8 V/3.3 V) with four
addresses selectable (only for PowerSO36
package option)
– Independent front/rear play/ mute
– Four selectable gains for very-low noise
line-out function
– Digital diagnostic with DC and AC load
detections
Optional H/W control (no I2C bus)
Start-stop compatibility (operation down to 6 V)
Sample rates: 44.1 kHz, 48 kHz, 96 kHz, 192 kHz
Flexible serial data port (1.8 V / 3.3 V):
–I
2S standard, TDM 4Ch, TDM 8Ch,
TDM 16Ch
Offset detector (play or mute mode)
Independent front/rear clipping detector
Programmable diagnostic pin
CMOS compatible enable pin
Thermal protection
Qualification in accordance to AEC Q100 rev. G
standard
Description
The TDA7802 is a single chip quad bridge
amplifier in advanced BCD technology
integrating: a full D/A converter, digital input for
direct connection to I2S (or TDM) and powerful
MOSFET output stages.
The integrated D/A converter allows the
performance to reach an outstanding 115 dB S/N
ratio with more than 110 dB of dynamic range.
Moreover the TDA7802 integrates an innovative
high efficiency concept, optimized also for
uncorrelated music signals, that makes it the most
suitable device to simplify the thermal
management in high power sets.
Thanks to this concept, the dissipated output
power under average listening conditions can be
reduced up to 50% when compared to the
conventional class AB solutions.
The TDA7802 integrates also a programmable
PLL that is able to lock at the input frequencies of
64*Fs and 50*Fs for all the input configurations.
The device is equipped with a full diagnostics
array that communicates the status of each
speaker through the I2C bus. The same I2C bus
allows to control several configurations of the
device.
The TDA7802 is able to play music down to 6 V
supply voltage - so it is compatible with the so
called 'start stop' battery profile recently adopted
by several car makers (thus reducing the fuel
consumption and and the impact over the
environment).
PowerSO36 Flexiwatt27
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Table 1. Device summary
Order code Package Packing
TDA7802 Flexiwatt27 (Vertical) Tube
TDA7802SM Flexiwatt27 (SMD) Tube
TDA7802SMTR Tape & reel
TDA7802PD PowerSO36 Tube
TDA7802PDTR Tape & reel
www.st.com
Contents TDA7802
2/10 DocID025017 Rev 4
Contents
1 Block diagram and pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
DocID025017 Rev 4 3/10
TDA7802 Block diagram and pins description
10
1 Block diagram and pins description
1.1 Block diagram
Figure 1. Block diagram (Flexiwatt27)
1.2 Pins description
Figure 2. Pins connection diagrams
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Block diagram and pins description TDA7802
4/10 DocID025017 Rev 4
Table 2. Flexiwatt27 pins description
N° Pin Function
1 TAB TAB connection Ground
2 PLLen Pll loop filter / ENABLE Input
3 PWGND2 Power ground channel 2 Power Ground
4 OUT 2- Channel 2 (Left Rear) negative output Power Output
5 WS Word select (I2S bus) Logic Input
6 OUT 2+ Channel 2 (Left Rear) positive output Power Output
7 VCC12 Channel 1 and 2 positive supply Battery
8 OUT 1- Channel 1 (Left Front) negative output Power Output
9 PWGND1 Power ground channel 1 Power Ground
10 OUT 1+ Channel 1 (Left Front) positive output Power Output
11 SCK Serial clock (I2S bus) Logic Input
12 SD24 Serial data channels 2 and 4 (I2S bus) Logic Input
13 SD13 Serial data channels 1 and 3 (I2S bus) Logic Input
14 DGND Digital ground Signal Ground
15 AGND Analog ground Signal Ground
16 D3V3 Digital 3.3 V supply filter Digital Regulator
17 A3V3 Analog 3.3 V supply filter Analog Regulator
18 OUT3+ Channel 3 (right front) positive output Power Output
19 PWGND3 Power ground channel 3 Power Ground
20 OUT3- Channel 3 (right front) negative output Power Output
21 VCC34 Channels 3 and 4 positive supply Battery
22 OUT4+ Channel 4 (right rear) positive output Power Output
23 CDdiag
Clip detector and diagnostic output:
Overcurrent protection intervention
Thermal warning
POR
Output DC offset
Output short to VCC/GND
Open Drain Output
24 OUT4- Channel 4 (right rear) negative output Power Output
25 PWGND4 Power ground channel 4 Power Ground
26 SDAlm I2C data/legacy mode mute Signal Input/Output
27 SCLlen I2C clock/enable legacy mode Signal Input
DocID025017 Rev 4 5/10
TDA7802 Block diagram and pins description
10
Table 3. PowerSO36 pins description
N° Pin Function
1 TAB TAB connection -
2 CDdiag
Clip detector and diagnostic output:
Overcurrent protection intervention
Thermal warning
POR
Open Drain Output
3 OUT4- Channel 4 (right rear) negative output Power Output
4 VCC34 Channels 3 and 4 positive supply Battery
5 PWGND4 Power ground channel 4 Power Ground
6 VCC34 Channels 3 and 4 positive supply Battery
7 OUT4+ Channel 4 (right rear) positive output Power Output
8 SDAlm I2C data/legacy mode mute Signal Input/Output
9 SCLlen I2C clock/enable legacy mode Signal Input
10 ADD1 I2C Address - First Pin Logic Input
11 PLLen Pll loop filter / ENABLE Input
12 OUT 2+ Channel 2 (Left Rear) positive output Power Output
13 VCC12 Channel 1 and 2 positive supply Battery
14 NC Not Connected -
15 PWGND2 Power ground channel 2 Power Ground
16 VCC12 Channel 1 and 2 positive supply Battery
17 OUT 2- Channel 2 (Left Rear) negative output Power Output
18 WS Word select (I2S bus) Logic Input
19 OUT 1- Channel 1 (Left Front) negative output Power Output
20 LOAD1A Load Selection (channels 1 and 2) Logic Input
21 LOAD1B Load Selection (channels 3 and 4) Logic Input
22 PWGND1 Power ground channel 1 Power Ground
23 OUT 1+ Channel 1 (Left Front) positive output Power Output
24 NC Not Connected -
25 SCK Serial clock (I2S bus) Logic Input
26 SD24 Serial data channels 2 and 4 (I2S bus) Logic Input
27 SD13 Serial data channels 1 and 3 (I2S bus) Logic Input
28 DGND Digital ground Signal Ground
29 AGND Analog ground Signal Ground
30 D3V3 Digital 3.3 V supply filter Digital Regulator
31 A3V3 Analog 3.3 V supply filter Analog Regulator
32 OUT3+ Channel 3 (right front) positive output Power Output
33 PWGND3 Power ground channel 3 Power Ground
34 UNMUTEhw Unmute Hardware Logic input
35 ADD2 I2C Address - Second Pin Logic Input
36 OUT3- Channel 3 (right front) negative output Power Output
Package information TDA7802
6/10 DocID025017 Rev 4
2 Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
Figure 3. PowerSO36 (slug up) mechanical data and package dimensions
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DocID025017 Rev 4 7/10
TDA7802 Package information
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Figure 4. Flexiwatt27 (vertical) mechanical data and package dimensions
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8/10 DocID025017 Rev 4
Figure 5. Flexiwatt27 (SMD) mechanical data and package dimensions
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DocID025017 Rev 4 9/10
TDA7802 Revision history
10
3 Revision history
Table 4. Document revision history
Date Revision Changes
18-Jul-2013 1 Initial release.
18-Sep-2013 2 Updated Disclaimer.
24-Oct-2014 3 Added ‘AEC Q100 rev. G compliant’ in Features list.
27-Oct-2014 4
Modified in cover page the feature ‘AEC Q100 rev. G
compliant’ in ‘
Qualification in accordance to AEC
Q100 rev. G
standard’.
TDA7802
10/10 DocID025017 Rev 4
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