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STA333SML
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P17
Electrical specificat
ions
STA333SML
10/17
DocID025317 Rev 2
3.6 Power-off
sequence
The power-of
f sequence shown in
Fig
ure 3
below ensures a pop-free turn-o
ff.
Figure 3. Power-off
sequence
3.7 T
esting
Figure 4. T
est circuit
Figure 5. Current
dead
time test circ
uit
Don’t care
Don’t care
Don
’t c
are
Don’t care
Don’t care
Don
’t c
are
No specific VCC and VDD_DIG
tur
n-off sequence is required
VCC
VDD_DIG
XTI
Low current dead time = MAX(DT
r,DTf)
OUTxY
Vcc
(3/4)Vcc
(1/2)Vcc
(1/4)Vcc
t
DTf
DT
r
Duty cycle = 50%
INxY
OUTxY
gnd
+Vcc
M58
M57
R 8
Ω
+
-
V67 =
vdc =
Vcc/2
D03A
U1458
High Current Dead time for Bridge application = ABS(DTout(A)-DTin(A))+ABS(DTOUT(B)-DTin(B))
+V
CC
Rload=8
Ω
Q2
OUTB
)
B
(
n
i
T
D
)
B
(
t
u
o
T
D
DTout(A)
C71 470nF
C70
470nF
C69
470nF
Iout=4A
Iout=4A
Q4
Q1
Q3
M64
INB
M63
D03AU1517
M58
INA
M57
DTin(A)
Duty cycle=A
Duty cycle=B
Duty cycle A and B: Fixed to have DC output current of 4A in the direction shown in figure
L68 22
μ
L67 22
μ
OUTA
Lout = 1.5 A
Lout = 1.5 A
DocID025317 Rev 2
1
1/17
STA333SML
El
ectrical spec
ifications
17
3.8
Serial audio interface description
3.8.1 Serial
audio
interface protocols
The ST
A333SML serial audio input was designed
to interface with standard
digital audio
components an
d to accept I²S formats. The
ST
A333SML always acts as a slave when
receiving audio input from st
andard digit
al audio component
s. Serial dat
a for two channels
is provided using 3 input pins: lef
t/right clock
LRCKI (pin B4), serial clock BICKI (pin C4),
and serial dat
a SDI (pin A5).
The available format
s are shown in
Figure 6
,
Figure 7
and
Fig
ure 8
.
Figure 6. I
²S -16 fs
Figure 7. I
²S - 24fs
Figure 8. I
²S - 32fs
LRCKI
Left Channel
Right Channel
16 Clks
16 Clks
BICKI
14
8
0
14
8
SDI
0
LRCKI
Left Channel
Right Channel
24 Clks
24 Clks
BICKI
22
11
0
19
15
0
7
0
22
11
SDI
0
19
15
0
11
0
LRCKI
Left Channel
Right Channel
32 Clks
32 Clks
BICKI
23
8
0
19
15
0
4
0
23
8
19
15
0
4
0
SDI
0
Electrical specificat
ions
STA333SML
12/17
DocID025317 Rev 2
3.9 Application
information
Figure 9. Ap
plication
diagram
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P17
STA333SML
Mfr. #:
Buy STA333SML
Manufacturer:
STMicroelectronics
Description:
Audio Amplifiers ANALOG
Lifecycle:
New from this manufacturer.
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