TDA8931 データシートの表示（PDF） - Philips Electronics
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TDA8931 Datasheet PDF : 31 Pages
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C3
2.2 nF
R4
1 kΩ
C4
R3
3.9 kΩ
R2
6.8 kΩ
R11(1)
VPA VP
C17
C5
470 kΩ 15 nF
VP
GND
R1
10 Ω
C2
100 nF
VP
VPA
C1
470 µF
(35 V)
C6
2.2 nF
100 nF
VP
47 µF
C7
(25 V)
2.2 nF
C8
R5
INN 3
5 18
17 BOOT
220 pF
47 kΩ
+
C11
R6
INP 4
C9
2.2 µF
C12
C10
220 pF
IN
220 nF 2.2 kΩ
15 nF R8
R7
−
VPA
POWERUP
6
R9 47 kΩ
U1
16 OUT
2.2 kΩ
10 Ω
L1
22 µH
+
OUT
R13 15 kΩ
R12
47 kΩ
EN 7
TDA8931
13 HVP
−
C13
C14
100 nF
680 nF
S1(2)
DIAG 8
OVP 12
CGND 9
19 HVPI
14 STABI
R10
22 Ω
C15(3)
1000 µF
(35 V)
2 15
1 10 11 20
C16
220 nF
001aab812
(1) Optional feed forward network to improve SVRR.
(2) Standby mode: S1 = closed; Operating mode: S1 = open.
(3) The low frequency gain is determined by the capacitor in series with the speaker. The cut-off frequency with a 4 Ω speaker and C15 = 1000 µF is 40 Hz.
Fig 5. Typical application diagram with TDA8931 supplied from an asymmetrical supply
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