FDA803Q
1 channel class D digital input automotive power amplifier with diagnostics,
wide voltage operation range for car audio and telematic
Data brief
2 Ω loads driving
Amplitude limiter function (configurable
through I2C)
I2C bus diagnostics:
– Short to VCC/GND
– Short load and open load detection (also in
play mode)
– Four thermal warnings
GAPGPS03203
VFQFPN 7x7x1.0 48L
(Exposed pad down)
DC offset detector (also in play) and 'hot spot'
detection
Features
Clipping detector
AEC-Q100 qualified
Integrated thermal protection
Integrated 108 dB D/A conversion
Legacy mode ('no I2C' mode), 4 configurable
settings
I2S and TDM digital input (4/8/16CH TDM)
Input sampling frequency: 44.1 kHz, 48 kHz,
96 kHz, 192 kHz
Short circuit and ESD integrated protections
Package: VFQFPN48 exposed pad down
2
Full I C bus driving (3.3/1.8 V)
Table 1. Device summary
CISPR 25 - Class V (Fourth edition)
Very low quiescent current
Output lowpass filter included in the feedback
allowing outstanding audio performances
Order code
Package
Packing
FDA803Q-V0T
VFQFPN48
(exposed pad down)
Tape & reel
FDA803Q-V0Y
Tray
Wide operating supply range from 3.3 to 18 V,
suitable for car radio, telematics and e-call
MOSFET power outputs allowing high output
power capability
– 1 x 25 W /4 Ω @ 14.4 V, 1 kHz THD = 1%
– 1 x 31 W /4 Ω @ 14.4 V, 1 kHz THD = 10%
May 2021
DB4487 Rev 1
For further information contact your local STMicroelectronics sales office.
1/16
www.st.com
Contents
FDA803Q
Contents
1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4
Application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6
5.1
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
5.2
Maximum operating voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.3
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.1
7
2/16
VFQFPN (7x7x1.0 48L - opt. D) package information . . . . . . . . . . . . . . . 13
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
DB4487 Rev 1
FDA803Q
List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Pin list function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Maximum operating voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Thermal data - QFN48 slug-down package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
VFQFPN (7x7x1.0 48L - opt. D) package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . 14
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
DB4487 Rev 1
3/16
3
List of figures
FDA803Q
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
4/16
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pin connection diagram (BOTTOM view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
VFQFPN (7x7x1.0 48L - opt. D) package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
DB4487 Rev 1
FDA803Q
1
Description
Description
The FDA803Q is a single bridge class D amplifier, designed in the most advanced BCD
technology, intended for any automotive audio application (car radio, telematics and e-call,
noise and tone generators, etc).
The FDA803Q integrates a high performance D/A converter together with powerful
MOSFET outputs in class D, so it is very compact and powerful, moreover it reaches
outstanding efficiency performances (90%).
It has a very wide operating range: it can be operated both with standard car battery levels
(5.5-18 V operating, compatible to load dump pulse) and with external step-down generated
voltages or emergency battery (since it is compatible to minimum 3.3 V operative).
The feedback loop includes the output L-C low-pass filter, allowing superior frequency
response linearity and lower distortion.
FDA803Q is configurable through I2C bus interface and integrates a complete diagnostics
array specially intended for automotive applications including innovative open load and DC
offset detection in play mode.
Thanks to the solutions implemented to solve the EMI problems, the device is intended to
be used in the standard single DIN car-radio box together with the tuner.
Moreover, FDA803Q features a configurable amplitude limiter function, and can be
optionally operated under no I2C mode ('legacy mode').
DB4487 Rev 1
5/16
15
Block diagram
2
FDA803Q
Block diagram
Figure 1. Block diagram
VCCM
VCCM
VCCP
VCCP
8
7
4
3
25
33
D1V8SVR
32
26
I2CClk
23
DGSVR
I2Cdata
22
17
Enable 4
21
SdataIN
18
Enable 3
I2Sws
DVdd
Enable 2
20
I2Sclk
DGnd
Enable 1
PLL
I2C interface
37
38
36
46
Interpolator
&
Noise
Shaper
I2S
interface
Current
Generator
Array
Scrambler
PWM
Transresistance
Power Amplifier
1/47/48
OUTP
12/13/14
OUTM
15
FBM
5
GNDP
GNDM
GNDM
AGSVR
GNDP
8
AGSVR
6
41
AVdd
7
42
SVR
AGnd
43
HWMUTE
39
44
CDDiag
SyncOUT
40
24
35
6/16
FBP
GAPG1105160712PS
DB4487 Rev 1
FDA803Q
3
Pin description
Pin description
Figure 2. Pin connection diagram (BOTTOM view)
OUTP
OUTP
NC
FBP
SVR
HWMUTE
AGSVR
A5VSVR
AVdd
AGnd
I2Sws
I2Sclk
48
37
I2SdataIn
36
1
SyncOUT
OUTP
NC
NC
VCCP
I2Cclk
VCCP
I2Cdata
GNDP
NC
GNDP
NC
GNDM
NC
GNDM
NC
VCVM
NC
VCCM
DGSVR
NC
12
13
25
24
D1V8SVR
OUTM
OUTM
OUTM
FBM
NC
DGnd
DVdd
NC
Enable1
Enable2
Enable3
Enable4
CDDiag
GADG2111170833PS
Table 2. Pin list function
N#
Pin
1
OUTP
2
NC
3
VCCP
4
Function
Definition
Internal structure
Output
-
-
-
Channel half bridge plus
Supply
-
VCCP
Channel half bridge plus
Supply
-
5
GNDP
Channel half bridge plus
Supply
-
6
GNDP
Channel half bridge plus
Supply
-
7
GNDM
Channel half bridge minus
Supply
-
8
GNDM
Channel half bridge minus
Supply
-
9
VCCM
Channel half bridge minus
Supply
-
10
VCCM
Channel half bridge minus
Supply
-
11
NC
-
-
12
OUTM
Channel half bridge minus
Output
-
13
OUTM
Channel half bridge minus
Output
-
Channel half bridge plus
Not connected
Not connected
DB4487 Rev 1
7/16
15
Pin description
FDA803Q
Table 2. Pin list function (continued)
N#
Pin
14
OUTM
15
FBM
16
NC
17
Definition
Internal structure
Output
-
Input
-
Not connected
-
-
DGnd
Digital ground
Supply
-
18
DVdd
Digital supply
Supply
-
19
NC
Not connected
-
-
20
Enable1
Enable pin
Input
-
21
Enable2
Enable pin
Input
-
22
Enable3
Enable pin
Input
-
23
Enable4
Enable pin
Input
-
24
CDDiag
Clipping detector and diagnostic
Output
Open-Drain
25
D1V8SVR
Positive digital supply V(SVR)
+ 0.9 V (Internally generated)
Internal
-
26
DGSVR
Negative digital supply V(SVR)
- 0.9 V (Internally generated)
Internal
-
27
NC
Not connected
-
-
28
NC
Not connected
-
-
29
NC
Not connected
-
-
30
NC
Not connected
-
-
31
NC
Not connected
-
-
Channel half bridge minus
Channel half bridge minus, Feedback
I2Cdata
I 2C
Data
Input/Output
Open-Drain
33
I2Cclk
I 2C
Clock
Input
-
34
NC
Not connected
-
-
35
SyncOUT
PWM synchronization signal
Output
Pull-Up & Pull-Down
I2SdataIn
I2S/TDM
data
Input
-
I2Sclk
I2S/TDM
Clock
Input
-
38
I2Sws
I2S/TDM
Sync/Word Select
Input
-
39
AGnd
Analog ground
Supply
-
40
AVdd
Analog supply
Supply
-
41
A5VSVR
Positive Analog Supply V(SVR)
+ 2.5 V (Internally generated)
Internal
-
42
AGSVR
Negative Analog Supply V(SVR)
- 2.5 V (Internally generated)
Internal
-
43
SVR
Supply Voltage Ripple Rejection
Capacitor
Internal
-
Input
-
-
-
32
36
37
44
45
8/16
Function
HWMUTE Hardware mute pin
NC
Not connected
DB4487 Rev 1
FDA803Q
Pin description
Table 2. Pin list function (continued)
N#
Pin
46
FBP
47
OUTP
48
OUTP
Function
Definition
Internal structure
Input
-
Channel half bridge plus
Output
-
Channel half bridge plus
Output
-
Channel half bridge plus, Feedback
DB4487 Rev 1
9/16
15
Application diagram
4
FDA803Q
Application diagram
Figure 3. Application diagram
C1
4.7uF
C2
10nF
C3
100pF
HWMUTE
11
2
1uF
C4
C6
2
1
VCC
2
I2S_WS
4.7nF
I2S_SCL
2
VCC
3
4
5
C8
C9
C10
6
CH1+
1uF
470uF
100nF
SPK
7
CH1-
8
VCC
GND
9
10
37
I2Sclk
39
38
I2Sws
40
42
41
44
43
SVR
46
45
OUTP
AGSVR
1
330pF
A5VSVR
C7
HWMUTE
R2 10R
GND
NC
48
OUTP
GND
47
L1 10uH
3.3uF
FBP
1
AGnd
10R
AVdd
C5
R1
OUTP
2
I2SdataIn
NC
SyncOut
VCCP
NC
VCCP
I2Cclk
GNDP
I2Cdata
GNDP
NC
FDA803Q
GNDM
NC
GNDM
NC
VCCM
NC
VCCM
NC
36
I2S_DataIn
35
SyncOut
34
33
I2C_SCL
32
I2C_SDA
31
MCU
30
29
28
27
C11
11
2
11
2
C15
R5
10R
1uF
C16
1
2
1
C13
CDDiag
25
4.7uF
24
Enable4
23
Enable3
Enable2
21
22
Enable1
NC
19
D1V8SVR
10nF
2
CDDIAG
L2 10uH
VCC
3.3uF
GND
10/16
20
DGnd
DVdd
18
17
NC
16
15
FBM
OUTM
OUTM
12
13
330pF
C12
26
100pF
C14
OUTM
GND
DGSVR
14
R4 10R
NC
DB4487 Rev 1
EN4
EN3
EN2
EN1
FDA803Q
Electrical specifications
5
Electrical specifications
5.1
Absolute maximum ratings
Table 3. Absolute maximum ratings
Symbol
Parameter
Value
Unit
-0.3 to 28
V
-0.3 to 40
V
Ground pin voltage difference
-0.3 to 0.3
V
∆VCCmax [DVDD-AVDD,
VCCP-DVDD, VCCP-AVDD,
Supply pins voltage difference
VCCM-DVDD, VCCMAVDD, VCCP-VCCM]
-0.3 to 0.3
V
Ground pin voltage difference
-0.3 to 0.3
V
I2C bus pins voltage
-0.3 to 5.5
V
-0.3 to 5.5
V
-0.3 to 5.5
V
-0.3 to 7
V
-0.3 to 5.5
V
Internally limited
A
Ambient operating temperature
-40 to 125
°C
Storage and junction temperature
-55 to 150
°C
VCCmax [VCCP ,VCCM, AVDD, DC supply voltage
DVDD]
Transient supply voltage for t = 100 ms(1)
GNDmax [DGND, AGND,
GNDP, GNDM]
∆GNDmax [AGND-DGND,
GNDP-AGND, GNDPDGND, GNDM-DGND,
GNDM-AGND, GNDPGNDM]
VI2C [I2Cdata, I2Cclk]
VI2S [I2SdataIN, I2Sclk,
I2Sws, SyncOUT]
Enable [Enable1, Enable2,
Enable3, Enable4]
Vmute [HWMute]
VCD [CDDiag]
Io
Tamb
Tstg, Tj
I2S bus pins voltage and Synchronization
pin
Enables
Hardware mute
CD/DIAG pins voltage
Output current (repetitive f > 10 Hz)
ESDHBM
ESD protection HBM
2000
V
ESDCDM
ESD protection CDM
500
V
1. VCC = 35 V for t < 400 ms as per ISO16750-2 load dump with centralized load dump suppression.
DB4487 Rev 1
11/16
15
Electrical specifications
5.2
FDA803Q
Maximum operating voltage
Table 4. Maximum operating voltage
Symbol
Parameter
Value
Unit
18
V
I2C bus pins voltage
3.6
V
I2S bus pins voltage and Synchronization
pin
3.6
V
Enables
3.6
V
5
V
3.6
V
VCCmax [VCCP ,VCCM, AVDD,
DC supply voltage
DVDD]
VI2C [I2Cdata, I2Cclk]
VI2S [I2SdataIN, I2Sclk,
I2Sws, SyncOUT]
Enable [Enable1, Enable2,
Enable3, Enable4]
Vmute [HWMute]
VCD [CDDiag]
5.3
Hardware mute
CD/DIAG pins voltage
Thermal data
Table 5. Thermal data - QFN48 slug-down package
Symbol
Parameter
Rth j-a-2s2pv Thermal resistance junction-to-ambient (2s2p+vias)
Value
Unit
28.5
°C/W
2s2p is referred to a board with 2 layers dedicated to the signals and 2 layers dedicated to
the power signals and supplies.
12/16
DB4487 Rev 1
FDA803Q
6
Package information
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.
VFQFPN (7x7x1.0 48L - opt. D) package information
Figure 4. VFQFPN (7x7x1.0 48L - opt. D) package outline
A
B
48
48
36
INDEX AREA
1
36
1
C0.35
R0
E2
.1
25
D2
D
12
0.36 Ref.
12
L
24
24
A
E
A1
e
b
Terminal Length
0.5±0.05
DETAIL A
0.10 C
48X
ddd C
C
A3
0.075 Ref
48X
0.20 Ref
6.1
0.10 M C A B
0.48 Ref.
0.20 Ref
Terminal Thickness
0.18 Ref.
0.05 Ref
DETAIL A
NOTE :
1. ALL DIMENSIONS ARE IN mm. ANGLES IN DEGREES.
2. COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS THE TERMINALS.
COPLANARITY SHALL NOT EXCEED 0.08 mm.
3. WARPAGE SHALL NOT EXCEED 0.10 mm.
4. REFER JEDEC MO-220.
DB4487 Rev 1
0.30 Ref.
13/16
15
Package information
FDA803Q
Table 6. VFQFPN (7x7x1.0 48L - opt. D) package mechanical data
Dimensions
Symbol
14/16
Min.
Typ.
Max.
A
0.85
0.95
1.05
A1
-
0.00
0.05
A2
-
0.75
-
A3
-
0.20
-
b
0.15
0.25
0.35
D
6.85
7.00
7.15
D2
5.15
5.30
5.45
E
6.85
7.00
7.15
E2
5.15
5.30
5.45
e
0.45
0.50
0.55
L
0.45
0.50
0.55
ddd
-
-
0.08
DB4487 Rev 1
FDA803Q
7
Revision history
Revision history
Table 7. Document revision history
Date
Revision
03-May-2021
1
Changes
Initial release.
DB4487 Rev 1
15/16
15
FDA803Q
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DB4487 Rev 1