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PDF TDA7801H Data sheet ( Hoja de datos )

Número de pieza TDA7801H
Descripción Digital input quad power amplifier
Fabricantes STMicroelectronics 
Logotipo STMicroelectronics Logotipo



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TDA7801
Digital input quad power amplifier with built-in diagnostics features
Datasheet - production data
Two I2C bus addresses and 8-ch TDM mode
(only in PowerSO package)
Optional non I2C bus mode
'!0'03
PowerSO36
(slug-up)
'!0'03
Flexiwatt27
(horizontal)
Offset detector (play or mute mode)
Clipping detector (selectable level) and
diagnostics pin
CMOS compatible enable pin (3.3/5 V)
Full fault protection
Four independent short circuit protections
'!0'03
Flexiwatt27
(vertical)
'!0'03
Flexiwatt27
(SMD)
Linear thermal protection (four thermal
warnings)
ESD protection
Features
Integrated 110 dB D/A conversion
I2S digital input (3.3/1.8 V) with TDM option
Selectable input sampling frequency:
44.1 kHz, 48 kHz, 96 kHz, 192 kHz
MOSFET power outputs
High output power capability 4x28 W/ 4 @
14.4 V, 1 kHz, 10 % THD
Max. output power 4x72 W/2
Full I2C bus driving (3.3/5 V):
– Independent front/rear soft play/ mute
– Selectable gain (four levels) for very low
noise line-out function
– I2C bus digital diagnostics (including DC
and AC load detection)
Description
The TDA7801 is a new BCD technology quad
bridge amplifier for car audio applications.
Thanks to the BCD6 technology it is possible to
integrate a high performance D/A converter
together with powerful MOSFET outputs.
The possibility of having the D/A conversion on
board allows the performance to reach an
outstanding 115 dB S/N ratio with more than
105 dB of dynamic range.
This device is equipped with a full diagnostics
array that communicates the status of each
speaker through the I2C bus. The possibility to
control the configuration and behavior of the
device by means of the I2C bus makes TDA7801 a
very flexible machine.
Table 1. Device summary
Order code
Package
Packing
TDA7801PD
TDA7801PDTR
TDA7801
TDA7801H
TDA7801SM
PowerSO36 (slug-up)
PowerSO36 (slug-up)
Flexiwatt27 (vertical)
Flexiwatt27 (horizontal)
Flexiwatt27 (SMD)
Tube
Tape and reel
Tube
Tube
Tube
September 2013
This is information on a product in full production.
DocID022674 Rev 4
1/48
www.st.com
1

1 page




TDA7801H pdf
TDA7801
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
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Figure 7.
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Figure 31.
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Figure 34.
Figure 35.
Figure 36.
Figure 37.
Figure 38.
Figure 39.
Figure 40.
Figure 41.
Figure 42.
Block diagram (Flexiwatt27) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
I2C bus mode application diagram (TDA7801/H/SM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
I2C bus mode application diagram (TDA7801PD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Legacy mode application diagram (TDA7801/H/SM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Legacy mode application diagram (TDA7801PD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Pin connection diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Quiescent current vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Output power vs. supply voltage (4 ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Output power vs. supply voltage (2 ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Distortion vs. output power (4 ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Distortion vs. output power (2 ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Distortion vs. frequency (4 ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Distortion vs. frequency (2 ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Vo vs. Vin (Gv1-2-3-4 settings). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Vo vs. Vin (Gv1-2-3-4 settings + 6 dB dig. gain). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Distortion vs. output voltage (LD-Gv2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Distortion vs. output voltage (LD-Gv3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Distortion vs. output voltage (LD-Gv4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Output attenuation vs. Vs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Crosstalk vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Supply voltage rejection vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Total power dissipation & efficiency vs. Po (4 ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Power dissipation vs. average Po (audio program simulation, 4 ) . . . . . . . . . . . . . . . . . . 20
Power dissipation vs. average Po (audio program simulation, 2 ) . . . . . . . . . . . . . . . . . . 20
ITU R-ARM frequency response, weighting filter for transient pop. . . . . . . . . . . . . . . . . . . 20
Standby driving circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Turn-on diagnostic cycle. Positive and negative output behaviour . . . . . . . . . . . . . . . . . . . 23
Turn-on diag. cycle with transition in amp. mode. Positive and negative output behaviour 24
Short to GND and short to Vs, threshold description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Short across the speaker and open load threshold description, in amplifier mode. . . . . . . 25
Short across the speaker and open load threshold description, in line driver mode. . . . . . 25
Thermal muting diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Low voltage mute attenuation, supply voltage variation (Vs); result digital attenuation (At) 29
TDM setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
I2S format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Audio data input format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Audio interface timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
I2C bus protocol description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
PowerSO36 (slug-up) mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . 43
Flexiwatt27 (vertical) mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . 44
Flexiwatt27 (horizontal) mechanical data and package dimensions. . . . . . . . . . . . . . . . . . 45
Flexiwatt27 (SMD) mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . 46
DocID022674 Rev 4
5/48

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TDA7801H arduino
TDA7801
Application diagrams
Table 3. PowerSO36 pin description
N° Pin
Function
1 TAB TAB connection (GND)
Clip detector and diagnostic output:
Overcurrent protection intervention
2
CD/DIAG
Thermal warning
Offset detection
POR (Open drain output)
3
OUT4-
Channel 4 (right rear) negative output
4
VCC
Channels 3-4 positive supply
5 PW_GND Power ground channel 4
6
VCC
Channels 3-4 positive supply
7
OUT4+
Channel 4 (right rear) positive output
8
I2C Data
I2C Data / legacy mode mute
9 I2C Clock I2C Clock / enable legacy mode
10 I2C Address I2C Address
11
Pll loop
filter/Enable
Pll loop filter / Enable
12
OUT2+
Channel 2 (left rear) positive output
13
VCC
Channel 1-2 positive supply
14 NC Not connected
15 PW_GND Power ground channel 2
16
VCC
Channel 1-2 positive supply
17
OUT2-
Channel 2 (left rear) negative output
18 WS Word Select (I2S bus, logic input)
19
OUT1-
Channel 1 (left front) negative output
20 NC Not connected
21 NC Not connected
22 PW_GND Power ground channel 1
23
OUT1+
Channel 1 (left front) positive output
24 NC Not connected
25
SCK
Serial clock (I2S bus, logic input)
26
SD2_4
Serial data channels 2 and 4 (I2S bus, logic input)
27
SD1_3
Serial data channels 1 and 3 (I2S bus, logic input)
28
Dgnd
Digital ground
29
Agnd
Analog ground
30 D3V Digital 3.3 V supply filter
31 A3V Analog 3.3 V supply filter
32
OUT3+
Channel 3 (right front) positive output
33 PW_GND Power ground channel 3
34 NC Not connected
35 NC Not connected
36
OUT3-
Channel 3 (right front) negative output
DocID022674 Rev 4
11/48

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