TS4962EKIJT STMICROELECTRONICS [STMicroelectronics], TS4962EKIJT Datasheet - Page 3

• Manufacturer Part Number: TS4962EKIJT
• Description: 3W Filter-free Class D Audio Power Amplifier
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Application Component Information
2 Application Component Information
Figure 1.
Component
Capacitor
Input
Rin
Cs
Differential
GND
GND
In+
In-
Differential
Input
Typical application
GND
GND
In+
In-
Input
Bypass supply capacitor. To install as close as possible of the TS4962 to minimize high frequency rip-
ple. A 100nF ceramic capacitor should be add to enhance the power supply filtering in high frequency.
Input resistor to program the TS4962 differential gain (Gain = 300k Ω /Rin with Rin in k Ω )
Thanks to common mode feedback, these input capacitors are optional. However, we can add then to
form with Rin a 1st order high pass filter with -3dB cut-off frequency = 1/(2* π *Rin*Cin)
+
-
Input
capacitors
are optional
GND
Vcc
+
-
Input
capacitors
are optional
GND
Vcc
Rin
Rin
Rin
Rin
C2
C1
A1
Stdby
In-
In+
C2
C1
A1
+
-
150k
150k
Oscillator
Internal
Stdby
In-
In+
Bias
+
-
150k
150k
PWM
Oscillator
Internal
Functional Description
Bias
B1
A2
Output
Bridge
GND
Vcc
GND
H
PWM
Out+
Out-
B2
B3
B1
C3
A3
TS4962
A2
Output
Bridge
GND
Vcc
GND
GND
Vcc
H
Out+
Out-
4 Ohms LC Output Filter
8 Ohms LC Output Filter
B2
Cs
1u
B3
15µH
C3
A3
15µH
30µH
TS4962
30µH
1µF
0.5µF
GND
Vcc
SPEAKER
Cs
1u
Load
TS4962
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