NXP Semiconductors TFA9812, Предварительный информационный лист

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TFA9812_2 © NXP B.V. 2009. All rights reserved.
Preliminary data sheet Rev. 02 — 22 January 2009 56 of 66
NXP Semiconductors
TFA9812
BTL stereo Class-D audio amplifier with I
2
S input
14.5 Curves measured in typical application
(1) f
i
= 6 kHz
(2) f
i
= 1 kHz
(3) f
i
= 100 Hz
(1) f
i
= 6 kHz
(2) f
i
= 1 kHz
(3) f
i
= 100 Hz
a. V
P
= 12 V; R
L
= 2
×
6
Ω
b. V
P
= 12 V; R
L
= 2
×
8
Ω
(1) f
i
= 6 kHz
(2) f
i
= 1 kHz
(3) f
i
= 100 Hz
(1) f
i
= 6 kHz
(2) f
i
= 1 kHz
(3) f
i
= 100 Hz
c. V
P
= 15 V; R
L
= 2
×
6
Ω
d. V
P
= 15 V; R
L
= 2
×
8
Ω
Fig 17. Total harmonic distortion-plus-noise as a function of output power
010aaa480
1
10
−
1
10
THD+N
(%)
10
−
2
P
o
(W/channel)
10
−
2
10
2
10 10
−
1
1
(1)
(2)
(3)
010aaa481
1
10
−
1
10
THD+N
(%)
10
−
2
P
o
(W/channel)
10
−
2
10
2
10 10
−
1
1
(1)
(2)
(3)
010aaa482
1
10
−
1
10
THD+N
(%)
10
−
2
P
o
(W/channel)
10
−
2
10
2
10 10
−
1
1
(1)
(2)
(3)
010aaa483
1
10
−
1
10
THD+N
(%)
10
−
2
P
o
(W/channel)
10
−
2
10
2
10 10
−
1
1
(1)
(2)
(3)