TS4994 ST Microelectronics, Inc., TS4994 Datasheet - Page 27

• Manufacturer Part Number: TS4994
• Description: 1.2W Differential Input Audio Power Amplifier With Selectable Standby
• Manufacturer: ST Microelectronics, Inc.

Application Information
The components calculations remain the same
except for the gain. The new formula is:
4.12 Demoboard
A demoboard for the TS4994 is available,
however it is designed only for the TS4994 in the
DFN10 package. However, we can guarantee that
Figure 82: Demoboard schematic
Figure 83: Components location
Av
SE
Pos. Input
Neg. Input
V
O
Ve
Cn1
Cn2
V
GND
GND
O
J1
J2
R
100nF/10V
100nF/10V
Cn3
Cn4
R
C1
C2
feed
in
22k/1%
22k/1%
GND
R1
R3
+
C3
1uF/6V
J3
Cn6
2
4
5
GND
Vcc
Vin-
Vin+
Bypass
1
2
3
Mode
R2
R4
22k/1%
22k/1%
3
Stdby
1
GND
Vcc
Cn8
1
2
3
Cn7
all electrical parameters are similar except for the
power dissipation.
For more information about this demoboard,
please refer to Application Note AN2013.
Figure 84: Top layer
GND
J4
9
VCC
GND
7
GND
Vcc
Standby
-
+
Bias
GND
+
C4
1uF/6V
TS4994DFN10
GND
C5
100nF/10V
Vo+
Vo-
10
6
Cn5
TS4994
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