ST TDA7563A User Manual
4 x 50W multifunction quad power amplifier
Features
■ Multipower BCD technology
■ MOSFET output power stage
■ DMOS power output
■ New high efficiency (class SB)
■ High output power capability 4x28W/4Ω @
14.4V, 1kHz, 10% THD, 4x50W max power
■ Max. output power 4x72W/2Ω
■ Full I
■ Full fault protection
■ DC offset detection
■ Four independent short circuit protection
■ Clipping detector pin with selectable threshold
■ Standby/mute pin
■ Linear thermal shutdown with multiple thermal
■ ESD protection
Table 1. Device summary
2
C bus driving:
– Standby
– Independent front/rear soft play/mute
– Selectable gain 26dB /12dB (for low noise
line output function)
– High efficiency enable/disable
2
–I
C bus digital diagnostics (including DC
and AC load detection)
(2%/10%)
warning
TDA7563A
with built-in diagnostics feature
PowerSO36
(Slug up)
Flexiwatt27 (Vertical)
Description
The TDA7563A is a new BCD technology Quad
Bridge type of car radio amplifier in Flexiwatt27 &
PowerSO36 packages specially intended for car
radio applications.
Thanks to the DMOS output stage the TDA7563A
has a very low distortion allowing a clear powerful
sound. Among the features, its superior efficiency
performance coming from the internal exclusive
structure, makes it the most suitable device to
simplify the thermal management in high power sets.
The dissipated output power under average
listening condition is in fact reduced up to 50%
when compared to the level provided by
conventional class AB solutions.
This device is equipped with a full diagnostics
array that communicates the status of each
speaker through the I
Flexiwatt27 (Horizontal)
Flexiwatt27 (SMD)
2
C bus.
Order code Package Packing
TDA7563A Flexiwatt27 (vertical) Tube
TDA7563AH Flexiwatt27 (horizontal) Tube
TDA7563ASM Flexiwatt27 (SMD) Tube
TDA7563ASMTR Flexiwatt27 (SMD) Tape and reel
TDA7563APD PowerSO36 (slug up) Tube
February 2008 Rev 1 1/35
www.st.com
1
Contents TDA7563A
Contents
1 Block, pins connection and application diagrams . . . . . . . . . . . . . . . . . 5
2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.4 Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3 Diagnostics functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1 Turn-on diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2 Permanent diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4 Output DC offset detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.1 AC diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.2 Multiple faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.3 Faults availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5 Thermal protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6 Fast muting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7 I2C bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.1 I2C programming/reading sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.2 I2C bus interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.3 Data validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.4 Start and stop conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.5 Byte format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.6 Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
8 Software specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
9 Examples of bytes sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
10 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
11 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
2/35
TDA7563A List of tables
List of tables
Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 1. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 2. Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 3. Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 4. Double fault table for turn on diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Table 5. Chip address: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Table 6. IB1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Table 7. IB2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Table 8. DB1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Table 9. DB2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Table 10. DB3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Table 11. DB4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Table 12. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3/35
List of figures TDA7563A
List of figures
Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 3. Pin connections - Flexiwatt27 (Top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 4. Pin connections - PowerSO36 (Top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 5. Quiescent current vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 6. Output power vs. supply voltage (4W) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 7. Output power vs. supply voltage (2W) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 8. Distortion vs. output power (4W, STD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 9. Distortion vs. output power (4Ω, HI-EFF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 10. Distortion vs. output power (2Ω, STD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 11. Distortion vs. frequency (4W) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 12. Distortion vs. frequency (2W) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 13. Crosstalk vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 14. Supply voltage rejection vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 15. Power dissipation and efficiency vs. output power (4W, STD, SINE) . . . . . . . . . . . . . . . . . 12
Figure 16. Power dissipation and efficiency vs. output power (4Ω, HI-EFF, SINE) . . . . . . . . . . . . . . . 12
Figure 17. Power dissipation vs. average output power (audio program simulation, 4W) . . . . . . . . . . 12
Figure 18. Power dissipation vs. average output power (audio program simulation, 2W) . . . . . . . . . . 12
Figure 19. Turn-on diagnostic: working principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 20. SVR and output behavior (case 1: without turn-on diagnostic). . . . . . . . . . . . . . . . . . . . . . 14
Figure 21. SVR and output pin behavior (case 2: with turn-on diagnostic) . . . . . . . . . . . . . . . . . . . . . 14
Figure 22. Thresholds for short to GND/V
Figure 23. Thresholds for short across the speaker/open speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 24. Thresholds for line-drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 25. Restart timing without diagnostic enable (permanent) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 26. Restart timing with diagnostic enable (permanent). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 27. Current detection: Load impedance |Z| vs. output peak voltage. . . . . . . . . . . . . . . . . . . . . 18
Figure 28. Thermal foldback diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 29. Data validity on the I2C bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 30. Timing diagram on the I2C bus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 31. Timing acknowledge clock pulse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 32. PowerSO36 (slug up) mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . 30
Figure 33. Flexiwatt27 (SMD) mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . 31
Figure 34. Flexiwatt27 (vertical) mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . 32
Figure 35. Flexiwatt27 (horizontal) mechanical data and package dimensions. . . . . . . . . . . . . . . . . . 33
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
S
4/35
TDA7563A Block, pins connection and application diagrams
1 Block, pins connection and application diagrams
Figure 1. Block diagram
CLK
DATA
VCC1
VCC2
ST-BY/MUTE
IN RF
I2CBUS
Mute1
Mute2
Thermal
Protection
& Dump
Reference
Clip
Detector
F
CD_OUT
OUT RF+
IN RR
IN LF
IN LR
SVR
R
F
R
AC_GND
Figure 2. Application circuit
C8
0.1μF
V(4V .. V
I2C BUS
IN RF
IN RR
IN LF
IN LR
)
CC
DATA
CLK
C1 0.22μF
C2 0.22μF
C3 0.22μF
C4 0.22μF
S-GND
RR
RF
PW_GND
C7
2200μF
2
26
23
16
15
12
13
14
C5
1μF
Vcc1
17 11 5
C6
10μF
Short Circuit
Protection &
Diagnostic
Short Circuit
Protection &
Diagnostic
Short Circuit
Protection &
Diagnostic
Short Circuit
Protection &
Diagnostic
LF LR
Vcc2
721
18
19
20
22
25
24
10
1, 27
47K
CD OUT
OUT RF-
OUT RR+
OUT RR-
OUT LF+
OUT LF-
OUT LR+
OUT LR-
TAB
+
+
+
9
8
+
6
3
4
-
TAB
S_GND
OUT RF
OUT RR
OUT LF
OUT LR
V
D00AU1231A
5/35
Block, pins connection and application diagrams TDA7563A
6
0
Figure 3. Pin connections - Flexiwatt27 (Top view)
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TAB
DATA
PW_GND RR
OUT RR-
CK
OUT RR+
V
OUT RF-
PW_GND RF
OUT RF+
AC GND
IN RF
IN RR
S_GND
IN LR
IN LF
SVR
OUT LF+
PW_GND LF
OUT LF-
V
OUT LR+
CD-OUT
OUT LR-
PW_GND LR
STBY
TAB
Flexiwatt 27 (horizontal/SMD)
CC2
CC1
D00AU141
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Flexiwatt 27 (vertical)
TAB
DATA
PW_GND RR
OUT RR-
CK
OUT RR+
V
CC2
OUT RF-
PW_GND RF
OUT RF+
AC GND
IN RF
IN RR
S_GND
IN LR
IN LF
SVR
OUT LF+
PW_GND LF
OUT LF-
V
CC1
OUT LR+
CD-OUT
OUT LR-
PW_GND LR
STBY
TAB
D00AU123
Figure 4. Pin connections - PowerSO36 (Top view)
VCC
OUT3-
N.C.
N.C.
PWGND
OUT3+
ACGND
IN3
IN4
SGND 1027
IN2
IN1
SVR 1324
OUT1+
PWGND
N.C.
OUT1-
VCC
36
35
34
33
32
31
30
29
28
26
25
23
22
21
20
19
D04AU1547A
1
2
3
4
5
6
7
8
9
TAB
CK
N.C.
OUT4+
N.C.
PWGND
VCC
DATA
OUT4-
OUT2-
11
12
STBY
VCC
PWGND
14
15
16
17
18
N.C.
OUT2+
N.C.
N.C.
CD
6/35
TDA7563A Electrical specifications
2 Electrical specifications
2.1 Absolute maximum ratings
Table 1. Absolute maximum ratings
Symbol Parameter Value Unit
T
V
V
V
V
peak
V
CK
DATA
I
O
I
O
P
stg
op
tot
Operating supply voltage 18 V
DC supply voltage 28 V
S
Peak supply voltage (for t = 50ms) 50 V
CK pin voltage 6 V
Data pin voltage 6 V
Output peak current (not repetitive t = 100ms) 8 A
Output peak current (repetitive f > 10Hz) 6 A
Power dissipation T
= 70°C 85 W
case
, TjStorage and junction temperature -55 to 150 °C
2.2 Thermal data
Table 2. Thermal data
Symbol Parameter PowerSO36 Flexiwatt 27 Unit
R
th j-case
Thermal resistance junction to case Max 1 1 °C/W
2.3 Electrical characteristics
Table 3. Electrical characteristics
Symbol Parameter Test condition Min. Typ. Max. Unit
Power amplifier
V
S
I
d
P
O
(Refer to the test circuit, VS = 14.4V; f=1kHz; RL=4Ω; T
= 25°C unless otherwise specified)
amb
Supply voltage range 8 18 V
Total quiescent drain current 170 300 mA
Output power
Max. power (V
wave input (2Vrms))
THD = 10%
THD = 1%
= 2Ω; EIAJ (VS = 13.7V)
R
L
RL = 2Ω; THD 10%
= 2Ω; THD 1%
R
L
= 2Ω; max power
R
L
= 15.2V, square
S
25
20
55
40
32
60
50 W
28
22
68
50
40
75
7/35
W
W
W
W
W
W
Electrical specifications TDA7563A
Table 3. Electrical characteristics (continued)
(Refer to the test circuit, VS = 14.4V; f=1kHz; RL=4Ω; T
Symbol Parameter Test condition Min. Typ. Max. Unit
= 25°C unless otherwise specified)
amb
THD Total harmonic distortion
= 1 to 10W; STD MODE
P
O
HE MODE; PO = 1.5W
HE MODE; P
= 1-10W, f = 10kHz; STD mode 0.15 0.5 %
P
O
= 8W
O
0.015
0.01
0.1
0.1
0.1
0.5
RL = 2Ω; HE MODE; Po = 3W 0.02 0.5 %
= 12dB; STD mode
G
Cross talk f = 1kHz to 10kHz, Rg = 600Ω 50 60 dB
C
T
R
G
ΔG
G
ΔG
E
E
Input impedance 60 100 130 KΩ
IN
Voltage gain 1 (default) 25 26 27 dB
V1
Voltage gain match 1 -1 1 dB
V1
Voltage gain 2 11 12 13 dB
V2
Voltage gain match 2 -1 1 dB
V2
Output noise voltage 1
IN1
Output noise voltage 2
IN2
SVR Supply voltage rejection
V
= 0.1 to 5 V
V
O
RMS
Rg = 600Ω;
filter 20 Hz to 22 kHz
Rg = 600Ω; GV = 12dB
filter 20 Hz to 22 kHz
f = 100Hz to 10kHz; V
= 600Ω
R
g
= 1Vpk;
r
0.015 0.1 %
35 µV
11 µV
50 70 dB
BW Power bandwidth 100 kHz
A
I
A
V
V
T
T
V
V
CMRR Input CMRR V
V
I
CD
CD
Standby attenuation 90 110 dB
SB
Standby current V
SB
Mute attenuation 80 100 dB
M
Offset voltage Mute & Play -60 0 60 mV
OS
Min. supply mute threshold 7 7.5 8 V
AM
Turn on delay D2/D1 (IB1) 0 to 1 5 20 ms
ON
Turn off delay D2/D1 (IB1) 1 to 0 5 20 ms
OFF
Standby/mute pin for standby 0 1.5 V
SBY
Standby/mute pin for mute 3.5 5 V
MU
Standby/mute pin for operating 7 V
OP
V
Standby/mute pin current
MU
Clip det. high leakage current CD off / VCD = 6V 0 5 μA
LK
Clip det. saturation voltage CD on; ICD = 1mA 300 mV
SAT
V
= 0 1 10 µA
standby
= 1Vpk-pk; Rg = 0 Ω 55 dB
CM
standby/mute
standby/mute
= 8.5V 20 40 μA
< 1.5V 0 5 μA
S
%
%
%
V
8/35
TDA7563A Electrical specifications
Table 3. Electrical characteristics (continued)
(Refer to the test circuit, VS = 14.4V; f=1kHz; RL=4Ω; T
Symbol Parameter Test condition Min. Typ. Max. Unit
= 25°C unless otherwise specified)
amb
CD
Clip det. THD level
THD
D0 (IB1) = 0 1 2 3 %
Turn on diagnostics 1 (Power amplifier mode)
Short to GND det. (below this
D0 (IB1) = 1 5 10 15 %
Pgnd
limit, the output is considered in
1.2 V
short circuit to GND)
Short to Vs det. (above this
Pvs
limit, the output is considered in
Vs -1.2 V
short circuit to VS)
Power amplifier in standby
1.8 Vs -1.8 V
Pnop
Normal operation thresholds.
(within these limits, the output
is considered without faults).
Lsc Shorted load det. 0.5 Ω
Lop Open load det. 130 Ω
Lnop Normal load det. 1.5 70 Ω
Turn on diagnosticS 2 (Line driver mode)
Short to GND det. (below this
Pgnd
limit, the output is considered in
Power amplifier in standby 1.2 V
short circuit to GND)
Short to Vs det. (above this
Pvs
limit, the output is considered in
Vs -1.2 V
short circuit to VS)
Normal operation thresholds.
Pnop
(within these limits, the output
1.8 Vs -1.8 V
is considered without faults).
Lsc Shorted load det. 1.5 Ω
Lop Open load det. 400 Ω
Lnop Normal load det. 4.5 200 Ω
Permanent diagnostics 2 (Power amplifier mode or line driver mode)
Short to GND det. (below this
Pgnd
limit, the output is considered in
short circuit to GND)
Power amplifier in mute or play,
one or more short circuits
protection activated
Pvs
Short to Vs det. (above this
limit, the output is considered in
short circuit to Vs)
Normal operation thresholds.
Pnop
(within these limits, the output
is considered without faults).
Power amplifier mode 0.5 Ω
L
Shorted load det.
SC
Line driver mode 1.5 Ω
9/35
1.2 V
Vs -1.2 V
1.8 Vs -1.8 V
Electrical specifications TDA7563A
)
(V)
Po (W)
THD (%)
Table 3. Electrical characteristics (continued)
(Refer to the test circuit, VS = 14.4V; f=1kHz; RL=4Ω; T
Symbol Parameter Test condition Min. Typ. Max. Unit
= 25°C unless otherwise specified)
amb
V
I
2
C bus interface
I
S
V
V
Offset detection
O
Normal load current detection
I
NL
Open load current detection 250 mA
OL
Clock frequency 400 kHz
CL
Input low voltage 1.5 V
IL
Input high voltage 2.3 V
IH
Power amplifier in play, STD mode
AC input signals = 0
VO < (VS-5)pk
±1.5 ±2 ±2.5 V
500 mA
2.4 Electrical characteristics curves
Figure 5. Quiescent current vs. supply voltage Figure 6. Output power vs. supply voltage (4Ω)
Id (mA)
250
230
210
190
170
150
130
110
Vin = 0
NO LOADS
90
70
8 1012141618
Vs (V)
Po (W)
70
65
60
55
50
45
40
35
30
25
20
15
10
RL = 4 Ohm
f = 1 KHz
5
8 9 10 11 12 13 14 15 16 17 18
Vs (V
Po-max
THD = 10 %
THD = 1 %
Figure 7. Output power vs. supply voltage (2Ω) Figure 8. Distortion vs. output power (4Ω, STD)
Po (W)
100
90
80
70
60
50
40
30
20
10
RL = 2 Ohm
f = 1 KHz
8 9 10 11 12 13 14 15 16
Vs
Po-max
THD = 10 %
THD = 1 %
10/35
10
STANDARD M ODE
= 14.4 V
V
S
R
= 4Ω
L
1
f = 10 KHz
0.1
0.01
0.001
0.1 1 10 100
f = 1 KHz
AC00251
TDA7563A Electrical specifications
Po (W)
THD (%)
f = 10 KHz
Po (W)
THD (%)
STANDARD MODE
V
S
= 14.4 V
R
L
= 2
Ω
f = 10 KHz
f (Hz)
THD (%)
f (Hz)
THD (%)
f (Hz)
CROSSTALK (dB)
f (Hz)
SVR (dB)
Figure 9. Distortion vs. output power (4Ω, HI-
EFF)
10
HI - EFF MODE
= 14.4 V
V
S
= 4
R
Ω
L
1
0.1
0.01
0.001
0.1 1 10 100
f = 1 KHz
Figure 10. Distortion vs. output power (2Ω,
STD)
AC00252
10
1
0.1
0.01
0.001
0.1 1 10 100
f = 1 KHz
Figure 11. Distortion vs. frequency (4Ω) Figure 12. Distortion vs. frequency (2Ω)
10
STANDARD M ODE
V
R
1
Po = 4 W
= 14.4 V
S
Ω
= 4
L
AC00254
10
STANDARD M ODE
V
R
1
Po = 8 W
= 14.4 V
S
Ω
= 2
L
AC00253
AC00255
0.1
0.01
0.001
10 100 1000 10000 100000
0.1
0.01
0.001
10 100 1000 10000 100000
Figure 13. Crosstalk vs. frequency Figure 14. Supply voltage rejection vs.
frequency
AC00256
-20
-30
STANDARD M ODE
Ω
= 4
R
L
P
= 4 W
o
-40
Rg = 600
Ω
-50
-60
-70
-80
-90
-100
10 100 1000 10000 100000
-20
STD & HE MODE
-30
-40
Ω
R
= 600
g
Vrip ple = 1 Vrm s
-50
-60
-70
-80
-90
-100
10 100 1000 10000 100000
AC00257
11/35
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