NXP Semiconductors TFA9812 Stereo Amplifier User Manual


  Open as PDF
of 66
 
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
1010
−1
1
(1)
(2)
(3)
010aaa481
1
10
−1
10
THD+N
(%)
10
−2
P
o
(W/channel)
10
−2
10
2
1010
−1
1
(1)
(2)
(3)
010aaa482
1
10
−1
10
THD+N
(%)
10
−2
P
o
(W/channel)
10
−2
10
2
1010
−1
1
(1)
(2)
(3)
010aaa483
1
10
−1
10
THD+N
(%)
10
−2
P
o
(W/channel)
10
−2
10
2
1010
−1
1
(1)
(2)
(3)
 previous next