54405IVZ 查看數據表（PDF） - Intersil
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54405IVZ Datasheet PDF : 19 Pages
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ISL54405
Typical Performance Curves TA = +25°C, Unless Otherwise Specified (Continued)
-100
-101
-102
-103
-104
VDD = 3.3V
RLOAD = 20kΩ
10Hz to 30k FILTER
2VRMS
1.9VRMS
-105
-106
-107
1.7VRMS TO 1.8VRMS
-108
-109
-110
-111
-112
1.6VRMS
-113
-114
-115
1.5VRMS
-116
-117
-118
-119
-120
20
50 100 200 500 1k 2k
5k 10k 20k
FREQUENCY (Hz)
0.00100
0.00095
0.00090
VDD = 3.3V
RLOAD = 20kΩ
0.00085 10Hz TO 30k FILTER
0.00080
0.00075
2VRMS
0.00070
0.00065
0.00060
1.9VRMS
0.00055
0.00050
0.00045
1.7VRMS TO 1.8VRMS
0.00040
0.00035
0.00030
0.00025
1.6VRMS
0.00020
0.00015
1.5VRMS
0.00010
20
50 100 200 500 1k 2k 5k 10k 20k
FREQUENCY (Hz)
FIGURE 21. THD+N vs SIGNAL LEVELS vs FREQUENCY
FIGURE 22. THD+N vs SIGNAL LEVELS vs FREQUENCY
-60
-65
-70 VDD = 3.3VDC + 100mVRMS SIGNAL
-75 RLOAD = 20kΩ OR 32Ω
-80 INPUTS GROUNDED
-85
-90
-95
-100
AUDIO MODE
-105
-110
-115
-120
-125
MUTE MODE
(C/P SHUNT ON LOADSIDE)
-130
-135
-140
20
50 100 200 500 1k 2k
5k 10k 20k 40k
FREQUENCY (Hz)
FIGURE 23. PSRR vs FREQUENCY
7
6
MUTE 2V/DIV
5
VDD/2 2V/DIV
4
3
2
1
0
-1
LIN 200mV/DIV
-2
-3
-4
-5
LOUT 200mV/DIV
-6
-7
-0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0
TIME (s) 100ms/DIV
0.1 0.2 0.3 0.4
FIGURE 25. 20kΩ AC COUPLED CLICK/POP REDUCTION
-50
-55
-60
-65
5V_Supply = 5VDC + 100MVRMS SIGNAL
RLOAD = 20kΩ OR 32Ω
-70 INPUTS GROUNDED
-75
-80
-85
-90
-95
-100
-105
AUDIO MODE
-110
-115
-120
-125
MUTE MODE
(C/P SHUNT ON LOADSIDE)
-130
-135
-140
20
50 100 200 500 1k 2k
5k 10k 20k 40k
FREQUENCY (Hz)
FIGURE 24. PSRR vs FREQUENCY
7
6
MUTE 2V/DIV
5
VDD/2 2V/DIV
4
3
2
1
0
LIN 200mV/DIV
-1
-2
-3
-4
-5
LOUT 200mV/DIV
-6
-7
-0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0 0.1 0.2 0.3 0.4
TIME (s) 100ms/DIV
FIGURE 26. 32Ω AC COUPLED CLICK/POP REDUCTION
15
FN6699.1
June 5, 2008
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