TDA8932B NXP Semiconductors, TDA8932B Datasheet - Page 12

• Manufacturer Part Number: TDA8932B
• Description: The TDA8932B is a high efficiency class-D amplifier with low power dissipation
• Manufacturer: NXP Semiconductors

NXP Semiconductors
9. Internal circuitry
TDA8932B_4
Product data sheet
Table 7.
Pin
1
16
17
32
2
3
12
14
15
4
•
•
•
Pins HVP1 and HVP2: The time required for charging the SE capacitor depends on its
value. The half supply voltage output is disabled when the TDA8932B is used in a
symmetrical supply application.
Pin HVPREF: This output voltage reference buffer charges the capacitor on pin
HVPREF.
Pin INREF: This output voltage reference buffer charges the input reference capacitor
on pin INREF. Pin INREF applies the bias voltage for the inputs.
Symbol
V
V
V
V
IN1P
IN1N
INREF
IN2N
IN2P
DIAG
Internal circuitry
SSD(HW)
SSD(HW)
SSD(HW)
SSD(HW)
Rev. 04 — 18 December 2008
Equivalent circuit
2, 15
3, 14
12
4
V
V
DDA
SSA
17, 32
1, 16,
2 k
2 k
V
V
20 %
20 %
DDA
SSA
2.5 V
100 k
50 A
20 %
48 k
48 k
500
20 %
20 %
20 %
CGND
001aad784
Class-D audio amplifier
TDA8932B
V
V
DDA
SSA
001aaf607
© NXP B.V. 2008. All rights reserved.
V/I
V/I
001aad785
HVPREF
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