Datasheet

TS4962 Application information
Doc ID 10968 Rev 8 35/44
In the case where the distance between the TS4962 output and the speaker terminals is
high, it is possible to observe low frequency EMI issues due to the fact that the typical
operating frequency is 250 kHz. In this configuration, we recommend using an output filter
(as represented in Figure 1 on page 6). It should be placed as close as possible to the
device.
4.11 Several examples with summed inputs
4.11.1 Example 1: dual differential inputs
Figure 64. Typical application schematic with dual differential inputs
With (R
i
in kΩ):
R1
R1
Cs
1u
GND
GND
Vcc
SPEAKER
Standby
R2
R2
E1+
E1-
E2-
E2+
In-
Stdby
In+
Out-
Out+
Vcc
1
4
3
7
8
6
5
GND
Internal
Bias
PWM
Output
Bridge
H
Oscillator
150k
150k
+
-
300k
A
V
1
Out
+
Out
-
–
E
1
+
E
1
-
–
-------------------------------
300
R
1
--------- -==
A
V
2
Out
+
Out
-
–
E
2
+
E
2
-
–
-------------------------------
300
R
2
--------- -==
0.5V
V
CC
R
1
× R
2
300 V
IC1
R
2
V
IC2
+× R
1
×()×+×
300 R
1
R
2
+()2R
1
× R
2
×+×
--------------------------------------------------------------------------------------------------------------------------------
V
CC
0.8V–≤≤
V
IC
1
E
1
+
E
1
-
+
2
------------------------= and V
IC
2
E
2
+
E
2
-
+
2
------------------------=