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RECOMMENDEDOPERATINGCONDITIONS
audiospecifications(btl)
TAS5142
SLES126B–DECEMBER2004–REVISEDMAY2005
MINTYPMAXUNIT
pvdd_xhalf-bridgesupplydcsupplyvoltage03234v
supplyforlogicregulatorsandgate-驱动
gvdd_xdcsupplyvoltage10.81213.2v
电路系统
vdddigitalregulatorinputdcsupplyvoltage10.81213.2v
R
L
(btl)34
outputfilter:l=10
µ
h,c=470nf.
R
L
(se)loadimpedanceoutputadmodulation,switchingfre-23
Ω
quency>350khz
R
L
(pbtl)1.52
L
输出
(btl)510
Minimumoutputinductanceunder
L
输出
(se)输出-filterinductance510
µ
H
短的-circuitcondition
L
输出
(pbtl)510
F
PWM
PWMframerate192384432kHz
T
J
Junctiontemperature0125°C
pvdd_x=32v,gvdd=vdd=12v,btlmode,r
L
=4
Ω
,audiofrequency=1khz,aes17filter,f
PWM
=384khz,情况
温度=75°c,unlessotherwisenoted.audioperformanceisrecordedasachipset,usingtas5508pwmprocessor
withaneffectivemodulationindexlimitof96.1%.allperformanceisinaccordancewithrecommendedoperatingconditions
unlessotherwisespecified.
TAS5142
PARAMETERTESTCONDITIONSUNIT
MINTYPMAX
R
L
=4
Ω
,10%thd,clippedinput
100
信号
R
L
=6
Ω
,10%thd,clippedinput
80
信号
R
L
=8
Ω
,10%thd,clippedinput
65W
信号
P
O
poweroutputperchannel,dkdpackage
R
L
=4
Ω
,0dbfs,unclippedinput
80
信号
R
L
=6
Ω
,0dbfs,unclippedinput
60
信号
R
L
=8
Ω
,0dbfs,unclippedinput
50
信号
0dbfs0.3%
THD+NTotalharmonicdistortion+noise
1w0.1%
V
n
outputintegratednoisea-weighted140
µ
V
snrsignal-至-noiseratio
(1)
一个-weighted102db
一个-weighted,inputlevel=–60dbfs
102
usingTAS5508modulator
DNRDynamicrangedB
一个-weighted,inputlevel=–60dbfs
110
usingTAS5518modulator
P
空闲
powerdissipationduetoidlelosses(ipvdd_x)p
O
=0w,4channelsswitching
(2)
2W
(1)snriscalculatedrelativeto0-dbfsinputlevel.
(2)actualsystemidlelossesareaffectedbycorelossesofoutputinductors.
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