Datasheet

TFA9879 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved.
Product data sheet Rev. 02 — 15 October 2010 17 of 60
NXP Semiconductors
TFA9879
Mono BTL class-D audio amplifier with digital input
Figure 10 shows the bass function for a range of attenuation and boost settings with a
sample rate of 48 kHz and a corner frequency of 272 Hz.
Figure 11 shows the treble function for a range of attenuation and boost settings with a
sample rate of 48 kHz and a corner frequency of 1630 Hz.
9.2.7 Muting
The TFA9879 support two muting options, which are controlled via the I
2
C-bus interface:
• Soft muting
• Hard muting
V
DDP
= 3.7 V, 2 × 8 Ω BTL configuration, treble control = 0 dB, clip control on
Fig 10. Bass function in 2 dB steps; the treble control is set to flat
V
DDP
= 3.7 V, 2 × 8 Ω BTL configuration, bass control = 0 dB, clip control on
Fig 11. Treble function in 2 dB steps; the bass control is set to flat
010aaa650
f (Hz)
10 10
5
10
4
10
2
10
3
0
−10
10
20
dB
−20
010aaa649
f (Hz)
10 10
5
10
4
10
2
10
3
0
−10
10
20
dB
−20