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TDA8932B Datasheet(PDF) 12 Page - NXP Semiconductors

Part No. TDA8932B
Description  Class-D audio amplifier
Download  48 Pages
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Maker  NXP [NXP Semiconductors]
Homepage  http://www.nxp.com
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TDA8932B Datasheet(HTML) 12 Page - NXP Semiconductors

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TDA8932B_4
© NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 04 — 18 December 2008
12 of 48
NXP Semiconductors
TDA8932B
Class-D audio amplifier
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.
9.
Internal circuitry
Table 7.
Internal circuitry
Pin
Symbol
Equivalent circuit
1VSSD(HW)
16
VSSD(HW)
17
VSSD(HW)
32
VSSD(HW)
2
IN1P
3
IN1N
12
INREF
14
IN2N
15
IN2P
4
DIAG
001aad784
1, 16,
17, 32
VSSA
VDDA
001aad785
2 k
± 20 %
2 k
± 20 %
48 k
± 20 %
48 k
± 20 %
2, 15
12
3, 14
HVPREF
VDDA
VSSA
V/I
V/I
001aaf607
100 k
± 20 %
500
± 20 %
50
µA
2.5 V
4
VSSA
VDDA
CGND


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