HTSSOP32 データシートの表示（PDF） - NXP Semiconductors.

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HTSSOP32

Class-D audio amplifer

NXP Semiconductors. 

NXP Semiconductors

TDA8932B

Class-D audio amplifier

f osc = 1----2---.-4R---5-o----×s--c--1---0----9

(1)

Where:

fosc = oscillator frequency (Hz)

Rosc = oscillator resistor (on pin OSCREF) (Ω)

550

fosc

(kHz)

450

001aad758

350

250

25

30

35

40

45

Rosc (kΩ)

Fig 5. Oscillation frequency as a function of resistor Rosc

Table 5 summarizes how to configure the TDA8932B in master or slave configuration.

For device synchronization see Section 14.6 “Device synchronization”.

Table 5. Master or slave configuration

Configuration Pin

OSCREF

Master

Slave

Rosc > 25 kΩ to VSSD(HW)

Rosc = 0 Ω; shorted to VSSD(HW)

OSCIO

output

input

8.4 Protection

The following protection is included in the TDA8932B:

• Thermal Foldback (TF)

• OverTemperature Protection (OTP)

• OverCurrent Protection (OCP)

• Window Protection (WP)

• Supply voltage protection:

– UnderVoltage Protection (UVP)

– OverVoltage Protection (OVP)

– UnBalance Protection (UBP)

• ElectroStatic Discharge (ESD)

The reaction of the device to the different fault conditions differs per protection.

TDA8932B_4

Product data sheet

Rev. 04 — 18 December 2008

© NXP B.V. 2008. All rights reserved.

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