TS2007_11 Datasheet, PDF (4/29 Pages) STMicroelectronics – 3 W filter-free Class D audio power amplifer with 6-12 dB fixed gain select

Typical application
2
Typical application
Figure 1. Typical application schematics
VCC
VCC
Cs
1uF
In-
Differential
Input
In+
Input capacitors
are optional
GS
Cin
4 IN-
-
Gain
3
Select ₊
IN+
Cin
Standby
Control
Standby
Vcc
PWM
TS2007
OUT+ 8
H
Bridge
5
OUT-
Oscillator
Gnd
TS2007
Speaker
4/29
VCC
In-
Differential
Input
In+
VCC
Input capacitors
are optional
GS
Cin
4 IN-
-
Gain
3
Select ₊
IN+
Cin
Standby
Control
Standby
VCC
Cs
1uF
Vcc
PWM
TS2007
OUT+ 8
H
Bridge
5
OUT-
Oscillator
Gnd
4Ω LC Output Filter
15 μH
2 μF
2 μF
15 μH
30 μH
1 μF
1 μF
30 μH
VCC
8Ω LC Output Filter
Load
Table 3. External component descriptions
Components
Functional description
C_S
Supply capacitor that provides power supply filtering.
Input coupling capacitors (optional) that block the DC voltage at the amplifier input
C_in
terminal. The capacitors also form a high pass filter with Z_in
(F_cl = 1 / (2 x Pi x Z_in x C_in)).
Doc ID 13123 Rev 4