sta335bwqs STMicroelectronics, sta335bwqs Datasheet - Page 19
sta335bwqs
Manufacturer Part Number
sta335bwqs
Description
2.1-channel High-efficiency Digital Audio System With Qsound Qhd?
Manufacturer
STMicroelectronics
Datasheet
1.STA335BWQS.pdf
(72 pages)
- Current page: 19 of 72
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STA335BWQS
3.6
Testing
Figure 5.
Figure 6.
DTin(A)
Duty cycle=A
INA
Test circuit 1
Test circuit 2
Duty cycle = 50%
M58
M57
High Current Dead time for Bridge application = ABS(DTout(A)-DTin(A))+ABS(DTOUT(B)-DTin(B))
Duty cycle A and B: Fixed to have DC output current of 4A in the direction shown in figure
Low current dead time = MAX(DTr, DTf)
INxY
Q1
Q3
OUTA
Iout=1.5A
DTout(A)
M57
M58
L67 10µ
470nF
C69
gnd
+Vcc
OUTxY
C71 470nF
Rload=4Ω
+V
CC
OUTxY
470nF
L68 10µ
C70
DTr
R 8
DTout(B)
Iout=1.5A
Ω
+
DTf
-
OUTB
vdc = Vcc/2
Electrical specifications
V67
Q2
Q4
t
(1/4)Vcc
(3/4)Vcc
(1/2)Vcc
Vcc
M64
M63
D06AU1651
Duty cycle=B
INB
DTin(B)
19/72
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