www.德州仪器.com
typicalperformancecurves(持续)
de-emphasisfilter
f – 频率 – khz
−0.5
−0.4
−0.3
−0.2
−0.1
0.0
0.1
0.2
0.3
0.4
0.5
0 2 4 6 8 10 12 14
de-emphasis 错误 – db
f
S
= 32 khz
G006
−10
−9
−8
−7
−6
−5
−4
−3
−2
−1
0
0 2 4 6 8 10 12 14
f – 频率 – khz
de-emphasis 水平的 – db
f
S
= 32 khz
G005
f – 频率 – khz
−0.5
−0.4
−0.3
−0.2
−0.1
0.0
0.1
0.2
0.3
0.4
0.5
0 2 4 6 8 10 12 14 16 18 20
de-emphasis 错误 – db
f
S
= 44.1 khz
G008
f – 频率 – khz
−10
−9
−8
−7
−6
−5
−4
−3
−2
−1
0
0 2 4 6 8 10 12 14 16 18 20
de-emphasis 水平的 – db
f
S
= 44.1 khz
G007
pcm1780,pcm1781,pcm1782
SLES132A–MARCH2005–REVISEDAPRIL2005
AllspecificationsatT
一个
=25°c,v
CC
=5v,f
S
=48khz,systemclock=512f
S
,and24-bitdata,unlessotherwisenoted
de-emphasisde-emphasiserror
figure5.figure6.
de-emphasisde-emphasiserror
figure7.figure8.
8
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