TS4972 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'TS4972' PDF : 30 Pages View PDF
Application Information
TS4972
Designator
Part Type
C10
C12
S1, S2, S6, S7
S8
P1
Short Circuit
1µF
2mm insulated Plug
10.16mm pitch
3 pts connector 2.54mm
pitch
SMB Plug
Application n°4 : Differential inputs BTL power
amplifier
In this configuration, we need to place these
components : R1, R4, R5, R6, R7, C4, C5, C12.
We have also : R4 = R5, R1 = R6, C4 = C5.
The differential gain of the amplifier is:
G VDIFF = 2 RR-----14--
Note : Due to the VICM range (see Operating
Condition), GVDIFF must have a minimum value
shown in figure 84.
Figure 84: Minimum Differential Gain vs
Power Supply Voltage
40
35
30
25
20
15
10
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Power Supply Voltage (V)
For Vcc=5V, a 20Hz to 20kHz bandwidth and
20dB gain BTL power amplifier you could follow
the bill of material below.
Components:
Designator
Part Type
R1
R4
R5
R6
R7
R8
C4
C5
C6
C7
C9
C10
C12
S1, S2, S6, S7
S8
P1, P2
110k / 0.125W
22k / 0.125W
22k / 0.125W
110k / 0.125W
100k / 0.125W
Short circuit
470nF
470nF
100µF
100nF
Short Circuit
Short Circuit
1µF
2mm insulated Plug
10.16mm pitch
3 pts connector 2.54mm
pitch
SMB Plug
25/30
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