AN10436 PHILIPS [NXP Semiconductors], AN10436 Datasheet - Page 8

• Manufacturer Part Number: AN10436
• Description: TDA8932B/33(B) Class-D audio amplifier
• Manufacturer: PHILIPS [NXP Semiconductors]

NXP Semiconductors
AN10436_1
Application note
Fig 5. Simplified BTL application TDA8932B/33(B) (asymmetrical supply)
(1) The TDA8933T device requires a 1 MΩ resistor in parallel with the bootstrap capacitor Cbo. TDA8932BT, TDA8932BTW
+
470 nF
Cin
and TDA8933BTW devices do not require a 1 MΩ resistor.
470 nF
Cin
1.3.4 Symmetrical supply mono BTL configuration
GND
HVPREF
VP
SLEEP
control
control
MUTE
The TDA8932B/33(B) can operate in BTL configuration when high output powers are
required at a low supply voltage (e.g., for driving a subwoofer in a 2.1 system). See
Figure
Rvdda
10
100 nF
39 k
Cosc
Rosc
Chvp
100 nF
Cen
470 nF
6.
VPA
Cvdda
100 nF
Cinref
100 nF
POWERUP
V
V
ENGAGE
OSCREF
HVPREF
SSD(HW)
SSD(HW)
VPA
INREF
CGND
TEST
DIAG
V
V
IN1P
IN1N
IN2N
IN2P
DDA
SSA
Rev. 01 — 12 December 2007
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Cvddp
220 F
(35 V)
TDA8932B/
VP
33(B)
U1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
V
OSCIO
HVP1
V
BOOT1
OUT1
V
STAB1
STAB2
V
OUT2
BOOT2
V
HVP2
DREF
V
SSD(HW)
DDP1
SSP1
SSP2
DDP2
SSD(HW)
TDA8932B/33(B) Class-D audio amplifier
Cbo
15 nF
Cbo
15 nF
Cdref
100 nF
Cstab
100 nF
Chvp
100 nF
(1)
(1)
Chvp
100 nF
Cvddp
100 nF
Cvddp
100 nF
VP
470
470
Rhvp
Rhvp
VP
Rsn
10
Csn
470 pF
HVPREF
Rsn
10
HVPREF
Csn
470 pF
AN10436
Llc
© NXP B.V. 2007. All rights reserved.
Rsn
10
Csn
470 pF
Llc
010aaa420
Clc
Clc
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