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DISSIPATIONRATINGTABLE
RECOMMENDEDOPERATINGCONDITIONS
DCELECTRICALCHARACTERISTICS
ACOPERATINGCHARACTERISTICS
DCELECTRICALCHARACTERISTICS
TPA6112A2
SLOS342A–DECEMBER2000–REVISEDSEPTEMBER2004
T
一个
≤
25
°
CDERATINGFACTORT
一个
=70
°
CT
一个
=85
°
C
包装
POWERRATINGABOVET
一个
=25
°
CPOWERRATINGPOWERRATING
dgq2.14w
(1)
17.1mw/
°
c1.37w1.11w
(1)pleaseseethetexasinstrumentsdocument,
PowerPADThermallyEnhancedPackageApplication
Report
(literaturenumberslma002),formoreinformationonthepowerpadpackage.thethermal
datawasmeasuredonaPCBlayoutbasedontheinformationinthesectionentitled
德州
InstrumentsRecommendedBoardforPowerPAD
onpage33ofthebeforementioneddocument.
MINMAXUNIT
V
DD
supplyvoltage2.55.5v
T
一个
operatingfree-airtemperature-4085
°
C
V
IH
,(关闭)高-levelinputvoltage60%xv
DD
V
V
IL
,(关闭)低-levelinputvoltage25%xv
DD
V
AtT
一个
=25
°
c,v
DD
=2.5v(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
V
OO
OutputoffsetvoltageA
V
=2v/v15mv
PSRRPowersupplyrejectionratioV
DD
=3.2vto3.4v83db
I
DD
supplycurrentshutdown=0v1.53ma
I
dd(sd)
SupplycurrentinSHUTDOWNmodeSHUTDOWN=V
DD
1050µA
Z
i
inputimpedance>1m
Ω
V
DD
=3.3v,t
一个
=25
°
c,r
L
=16
Ω
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
P
O
outputpower(eachchannel)thd
≤
0.1%,f=1khz60mw
THD+NTotalharmonicdistortion+noiseP
O
=40mw,20-20khz0.4%
B
OM
maximumoutputpowerbwg=10,thd<5%>20khz
PhasemarginOpenloop96
°
Supplyripplerejectionratiof=1kHz71dB
频道/channeloutputseparationf=1khz89db
snrsignal-至-noiseratiop
O
=50mw,一个
V
=1100dB
V
n
NoiseoutputvoltageA
V
=111µv(rms)
AtT
一个
=25
°
c,v
DD
=5.5v(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
V
OO
OutputoffsetvoltageA
V
=2v/v15mv
PSRRPowersupplyrejectionratioV
DD
=4.9vto5.1v76db
I
DD
supplycurrentshutdown=0v1.53ma
I
dd(sd)
SupplycurrentinSHUTDOWNmodeSHUTDOWN=V
DD
60100µA
|I
IH
|high-levelinputcurrent(关闭)v
DD
=5.5v,v
I
=V
DD
1µA
|I
IL
|low-levelinputcurrent(关闭)v
DD
=5.5v,v
I
=0V1µA
Z
i
inputimpedance>1m
Ω
3
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