TPA6204A1_17 Datasheet, PDF (7/26 Pages) Texas Instruments – 1.7-W Mono Fully Differential Audio Power Amplifier

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20
R_L = 8 Ω_,
10 _{C(BYPASS) = 0 to 1 µF,}
5 ^{Gain = 1 V/V}
f = 1kHz
2
1
0.5
2.5 V
0.2
3.6 V
0.1
5V
0.05
0.02
0.01
10m 20m 50m 100m 200m 500m 1 2
P_O − Output Power − W
Figure 5. Total Harmonic Distortion + Noise vs Output
Power
+0
R_L = 8 Ω,
−10 C_(BYPASS) = 0.47 µF,
Gain = 1 V/V,
−20 _{CI = 2 µF,}
Inputs ac Grounded
−30
−40
−50
−60
V_DD = 3.6 V
V_DD = 2.5 V
−70
−80
−90
V_DD = 5 V
−100
20 50 100 200 500 1k 2k 5k 10k 20k
f − Frequency − Hz
Figure 7. Supply Voltage Rejection Ratio vs Frequency
V_DD
C1
Frequency
217 Hz
C1 − Duty
20%
C1 Pk−Pk
500 mV
V_OUT
R_L = 8 Ω
C_I = 2.2 µF
C_(BYPASS) = 0.47 µF
Ch1 100 mV/div
Ch4 10 mV/div
t − Time − ms
2 ms/div
Figure 9. GSM Power Supply Rejection vs Time
TPA6204A1
SLOS429C – MAY 2004 – REVISED MAY 2016
10
5
2
1
0.5
0.2
0.1
0.05
V_DD = 3.6 V,
R_L = 8 Ω,_,
C_(BYPASS) = 0 to 1 µF,
Gain = 1 V/V,
C_I = 2 µF
0.25 W
0.6 W
0.1 W
0.02
0.01
0.005
0.002
0.001
20
50 100 200 500 1k 2k
f − Frequency − Hz
5k 10k 20k
Figure 6. Total Harmonic Distortion + Noise vs Frequency
0
−50
−100
−100
−120
V_DD Shown in Figure 9,
R_L = 8 Ω,
C_I = 2.2 µF,
Inputs Grounded
−150
−140
−160
−180
0
C_(BYPASS) = 0.47 µF
400
800
1200 1600 2000
f − Frequency − Hz
Figure 8. GSM Power Supply Rejection vs Frequency
300
250
200
150
100
50
0
0
0.2
0.4
0.6
0.8
1
C_(Bypass) − Bypass Capacitor − µF
Figure 10. Start-Up Time vs Bypass Capacitor
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