Datasheet
TS4962 Application information
Doc ID 10968 Rev 8 33/44
4.9 Single-ended input configuration
It is possible to use the TS4962 in a single-ended input configuration. However, input
coupling capacitors are needed in this configuration. Figure 61 shows a typical single-ended
input application.
Figure 61. Single-ended input typical application
All formulas are identical except for the gain with R
in
in kΩ.
Due to the internal resistor tolerance we have:
In the event that multiple single-ended inputs are summed, it is important that the
impedance on both TS4962 inputs (In
-
and In
+
) be equal.
Figure 62. Typical application schematic with multiple single-ended inputs
Rin
Rin
Cs
1u
GND
GND
Vcc
SPEAKER
Cin
Cin
Ve
GND
GND
Standby
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
glesin
V
e
Out
+
Out
-
–
-------------------------------
300
R
in
--------- -==
273
R
in
--------- -
A
V
glesin
327
R
in
--------- -
≤≤
Rin1
Req
Cs
1u
GND
GND
Vcc
SPEAKER
Cin1
Ceq
Ve1
GND
GND
Standby
Rink
Cink
Vek
GND
In-
Stdby
In+
Out-
Out+
Vcc
1
4
3
7
8
6
5
GND
Internal
Bias
PWM
Output
Bridge
H
Oscillator
150k
150k
+
-
300k