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ELECTRICALCHARACTERISTICS
OPERATINGCHARACTERISTICS
TPA2012D2
SLOS438–DECEMBER2004
overoperatingfree-airtemperaturerange(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
outputoffsetvoltageinputsacgrounded,一个
V
=6db,
|V
OO
|525mV
(measureddifferentially)v
DD
=2.5to5.5v
Powersupplyrejection
PSRRV
DD
=2.5to5.5v-75-55db
比率
一般-modeinput
V
icm
0.5v
DD
-0.8v
电压
一般-moderejectioninputsshortedtogether,
cmrr-69-50db
rationV
DD
=2.5to5.5v
|I
IH
|high-levelinputcurrentv
DD
=5.5v,v
I
=V
DD
50µA
|I
IL
|low-levelinputcurrentv
DD
=5.5v,v
I
=0V5µA
V
DD
=5.5v,noload69
V
DD
=3.6v,noload57.5ma
I
DD
Supplycurrent
V
DD
=2.5v,noload46
shutdownmode1.5µa
V
DD
=5.5v500
staticdrain-源
r
ds(在)
V
DD
=3.6v570m
Ω
在-stateresistance
V
DD
=2.5v700
Outputimpedancein
V
(sdr,sdl)
=0.35v2k
Ω
shutdownmode
f
(sw)
SwitchingfrequencyV
DD
=2.5vto5.5v250300350khz
g0,g1=0.35v5.566.5
G0=V
DD
,g1=0.35v11.51212.5
关闭-loopvoltagegaindb
g0=0.35v,g1=v
DD
17.51818.5
g0,g1=v
DD
23.52424.5
T
一个
=25
°
c,r
L
=8
Ω
,(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
V
DD
=5.0v,f=1khz,thd=10%1.4
R
L
=8
Ω
P
O
outputpower(perchannel)v
DD
=3.6v,f=1khz,thd=10%0.72w
R
L
=4
Ω
V
DD
=5.0v,f=1khz,thd=10%2.1
P
O
=1w,v
DD
=5v,一个
V
=6dbf=1khz0.14%
Totalharmonicdistortionplus
THD+N
噪音
P
O
=0.5w,v
DD
=5v,一个
V
=6dbf=1khz0.11%
channelcrosstalkf=1khz-85db
V
DD
=5v,一个
V
=6dbf=217hz-77
k
SVR
SupplyripplerejectionratiodB
V
DD
=3.6v,一个
V
=6dbf=217hz-73
CMRRCommonmoderejectionratioV
DD
=3.6v,v
IC
=1V
pp
f=217hz-69db
av=6db28.1
av=12db17.3
Inputimpedancek
Ω
av=18db9.8
av=24db5.2
开始-uptimefromshutdownv
DD
=3.6v3.5ms
Noweighting35
V
DD
=3.6v,f=20to20khz,
V
n
OutputvoltagenoiseµV
inputsareacgrounded,一个
V
=6dB
Aweighting27
3
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