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2004 May 05 5
Philips Semiconductors Preliminary specification
Power stage 2 x 10 or 1 x 20 W class-D
audio amplifier
TDA8928J
7 PINNING
SYMBOL PIN DESCRIPTION
SW1 1 digital switch input; channel 1
REL1 2 digital control output; channel 1
DIAG 3 digital open-drain output for
overtemperature and overcurrent
report
EN1 4 digital enable input; channel 1
V
DD1
5 positive power supply; channel 1
BOOT1 6 bootstrap capacitor; channel 1
OUT1 7 PWM output; channel 1
V
SS1
8 negative power supply; channel 1
STAB 9 decoupling internal stabilizer for
logic supply
V
SS2
10 negative power supply; channel 2
OUT2 11 PWM output; channel 2
BOOT2 12 bootstrap capacitor; channel 2
V
DD2
13 positive power supply; channel 2
EN2 14 digital enable input; channel 2
POWERUP 15 enable input for switching on
internal reference sources
REL2 16 digital control output; channel 2
SW2 17 digital switch input; channel 2
handbook, halfpage
TDA8928J
MGX378
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
V
SS1
V
SS2
V
DD2
V
DD1
EN1
DIAG
REL1
SW1
SW2
REL2
POWERUP
EN2
BOOT1
OUT1
STAB
OUT2
BOOT2
Fig.2 Pin configuration.