TDA8932B_3
© NXP B.V. 21 June 2007. All rights reserved.
Product data sheet
Rev. 03— 21 June 2007
8 of 48
NXP Semiconductors
TDA8932B
Class-D audio amplifier
(1)
Where:
f
osc
= oscillator frequency (Hz)
Rosc = oscillator resistor (on pin OSCREF) (
Ω
)
summarizes how to configure the TDA8932B in master or slave configuration.
For device synchronization see
Section 14.6 “Device synchronization”
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.
Fig 5.
Oscillation frequency as a function of resistor Rosc
Table 5.
Master or slave configuration
Configuration
Pin
OSCREF
OSCIO
Master
Rosc > 25 k
Ω
to V
SSD(HW)
output
Slave
Rosc = 0
Ω
; shorted to V
SSD(HW)
input
f
osc
12.45
10
9
×
Rosc
----------------------------
=
350
450
550
f
osc
(kHz)
250
Rosc (k
Ω
)
25
45
40
30
35
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