TDA8552T_02 Datasheet, PDF (4/27 Pages) NXP Semiconductors – 2 x 1.4 W BTL audio amplifiers with digital volume control and headphone sensing

NXP Semiconductors
2 x 1.4 W BTL audio amplifiers with digital
volume control and headphone sensing
BLOCK DIAGRAM
Product specification
TDA8552T; TDA8552TS
handbook, full pagewidth
IN1 17
VOLUME
20 ^CONTROL
kΩ
0.5VDD
UP/DOWN1 6
SVR 16
UP/DOWN
COUNTER
up
down
INTERFACE
IN2 15
VOLUME
20 ^CONTROL
kΩ
0.5VDD
UP/DOWN2 7
UP/DOWN
COUNTER
up
down
INTERFACE
VDD1 VDD2 VDD3 VDD4
3
8
13
18
MASTER
20 dB
VDD ^{30 dB}
3.4 kΩ
1.6 kΩ
15 kΩ
20 kΩ
20 kΩ
15 kΩ
0.5VDD
0.5VDD
SLAVE
0.5VDD
15 kΩ
TDA8552T
MASTER
20 dB
VDD _{30 dB}
3.4 kΩ
1.6 kΩ
15 kΩ
0.5VDD
0.5VDD
0.5VDD
15 kΩ
15 kΩ
20 kΩ
20 kΩ
SLAVE
12 OUT1+
19 OUT1−
2 OUT2+
9 OUT2−
MODE 5
HPS 4
STANDBY/MUTE
AND OPERATING
GAIN
SELECTION
14
GAINSEL
1, 10, 11, 20
GND1 to GND4
MGM608
2002 Jan 04
Fig.1 Block diagram.
4