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TYPICALCHARACTERISTICS
−50
−60
−80
−100
20 100 1 k
−30
−20
f − 频率 − hz
0
10 k 20 k
−10
−40
−70
−90
V
DD
= 5 v
V
DD
= 3.3 v
R
L
= 8
Ω
C
B
= 1
µ
F
k
SVR
− 供应 voltage 拒绝 比率 − db
V
DD
− 供应 voltage − v
1.1
0.7
0.3
−0.1
0.9
0.5
0.1
3 4 62 5
I
DD
− 供应 电流 − 毫安
关闭 = 0 v
R
F
= 10 k
Ω
TPA321
SLOS312C–JUNE2000–REVISEDJUNE2004
TableofGraphs
图示
k
SVR
SupplyvoltagerejectionratiovsFrequency2
I
DD
supplycurrentvssupplyvoltage3,4
vsSupplyvoltage5
P
O
Outputpower
vsLoadresistance6
vsfrequency7,8,11,12
THD+NTotalharmonicdistortionplusnoise
vsoutputpower9,10,13,14
打开-loopgainandphasevsfrequency15,16
关闭-loopgainandphasevsfrequency17,18
V
n
outputnoisevoltagevsfrequency19,20
P
D
powerdissipationvsoutputpower21,22
SUPPLYVOLTAGEREJECTIONRATIOSUPPLYCURRENT
vsvs
FREQUENCYSUPPLYVOLTAGE
figure2.figure3.
5