TPA6205A1 Datasheet, PDF (21/38 Pages) Texas Instruments – 1.25-W MONO FULLY DIFFERENTIAL AUDIO POWER AMPLIFIER WITH 1.8-V INPUT LOGIC THRESHOLDS

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10.2.1.3 Application Curves
1.8
1.6
1.4
1.2
THD+N = 10%
1
0.8
0.6
THD+N = 1%
0.4
0.2
0
2.5
3
3.5
4
4.5
5
V_DD - Supply V oltage - V
Figure 34. Output Power vs Supply Voltage
SLOS490TPA6205A1
SLOS490C – JULY 2006 – REVISED NOVEMBER 2015
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
V_DD - Supply V oltage - V
Figure 35. Supply Current vs Supply Voltage
10.2.2 TPA6205A1 With Differential Input and Input Capacitors
The TPA6205A1 supports differential input operation with input capacitors. This section describes the design
considerations for this application.
R_F
-
C_I
R_I
IN
+
R_I
C_I
R_F
SHUTDOWN
C_(BYPASS)
(Optional)
V_DD
IN- _{_}
V_O+
IN+ ₊
V_O-
GND
Bias
Circuitry
To Battery
C_s
Figure 36. Differential Input Application Schematic Optimized With Input Capacitors
10.2.2.1 Design Requirements
Refer to the Design Requirements.
10.2.2.2 Detailed Design Procedure
Refer to the Detailed Design Procedure.
10.2.2.3 Application Curves
Refer to the Application Curves.
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