TDA8552 Philips Semiconductors, TDA8552 Datasheet - Page 14

• Manufacturer Part Number: TDA8552
• Description: 2 x 1.4 W BTL audio amplifiers with digital volume control and headphone sensing
• Manufacturer: Philips Semiconductors

Philips Semiconductors
TEST AND APPLICATION INFORMATION
1998 Jun 02
handbook, full pagewidth
2
volume control and headphone sensing
volume
volume
control
control
V DD
V DD
1.4 W BTL audio amplifiers with digital
up
up
down
down
2.2 k
2.2 k
R5
R6
mute
C7
100
nF
V DD
V IN1
V IN2
standby
operating
C8
100 nF
330 nF
220 F
330 nF
UP/DOWN1
UP/DOWN2
C3
C2
C1
MODE
SVR
HPS
IN1 17
IN2
16
15
5
4
6
7
AND OPERATING
STANDBY/MUTE
20
k
0.5V DD
20
k
0.5V DD
INTERFACE
INTERFACE
COUNTER
COUNTER
UP/DOWN
UP/DOWN
up
up
VOLUME
CONTROL
VOLUME
CONTROL
Fig.4 Test and application diagram.
down
down
V DD
V DD
15 k
15 k
15 k
15 k
0.5V DD
0.5V DD
20 dB
30 dB
20 dB
30 dB
V DD
14
0.5V DD
0.5V DD
SELECTION
0.5V DD
0.5V DD
3.4 k
1.6 k
3.4 k
1.6 k
GAIN
GAINSEL
TDA8552T
14
MASTER
MASTER
SLAVE
SLAVE
3, 8
V DD1, 2
15 k
20 k
20 k
15 k
20 k
20 k
TDA8552T; TDA8552TS
1, 10, 11, 20
GND1 to GND4
13, 18
V DD3, 4
100 k
R3
12
19
2
9
OUT1
OUT1
OUT2
OUT2
C3
8
8
V DD
Preliminary specification
R2
820 k
220 F
100
220 F
nF
C6
C5
C4
220 F
V DD = 5 V
headphone jack
ring
tip
sleeve
MGM609
ground
R1
1 k
R4
1 k