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TYPICALCHARACTERISTICS
0.001
10
0.01
0.1
1
20 20k100 1k 10k
thd+n − total 调和的 扭曲量 + 噪音 − %
f − 频率 − hz
V
DD
= 3.3 v,
P
O
= 25 mw,
C
B
= 1
µ
f,
R
L
= 32
Ω,
一个
V
= −1 v/v
10 100
0.001
10
0.01
0.1
1
thd+n − total 调和的 扭曲量 + 噪音 − %
V
DD
= 3.3 v,
R
L
= 32
Ω,
一个
V
= −1 v/v,
C
B
= 1
µ
F
50
P
O
− 输出 电源 − mw
20 hz
1 khz
20 khz
TPA6112A2
SLOS342A–DECEMBER2000–REVISEDSEPTEMBER2004
TableofGraphs
图示
vsfrequency1,3,5,6,7,9,11,13,
THD+NTotalharmonicdistortionplusnoise
vsoutputpower2,4,8,10,12,14
supplyripplerejectionratiovsfrequency15,16
V
n
outputnoisevoltagevsfrequency17,18
crosstalkvsfrequency19-24
shutdownattenuationvsfrequency25,26
打开-loopgainandphasemarginvsfrequency27,28
outputpowervsloadresistance29,30,
I
DD
SupplycurrentvsSupplyvoltage31
snrsignal-至-noiseratiovsvoltagegain32
powerdissipation/amplifiervsloadpower33,34
TOTALHARMONICDISTORTION+NOISETOTALHARMONICDISTORTION+NOISE
vsvs
FREQUENCYOUTPUTPOWER
figure1.figure2.
5