tfa9879hn NXP Semiconductors, tfa9879hn Datasheet - Page 32

• Manufacturer Part Number: tfa9879hn
• Description: Mono Btl Class-d Audio Amplifier For Portable Applications With Digital Input
• Manufacturer: NXP Semiconductors

NXP Semiconductors
TFA9879_1
Preliminary data sheet
10.4.6 Bass and treble control
10.4.7 High-pass filter
Table 29.
Table 30.
[1]
Bit
15:14 reserved
13:9
8:7
6:2
1:0
Bit
15:9
8:0
Default value is 04h. From
F_TRBLE
F_BASS
HP_CTRL
Symbol
G_TRBLE
G_BASS
Symbol
reserved
Bass and treble control register (addresses 11h) bit description
High-pass filter control register (addresses 12h) bit description
All information provided in this document is subject to legal disclaimers.
Access
R/W
R/W
R/W
R/W
Access
R/W
Rev. 01 — 8 April 2010
Equation
01001
01
01
Default
01001
Default
0x04
1, this gives a high-pass cut-off frequency of approximately 1.6  f
[1]
Mono BTL class-D audio amplifier with digital input
Description
treble gain (2 dB steps):
treble control corner frequency, see
corner frequency as a function of the value of
F_TREBLE
bass control corner frequency, see
corner frequency as a function of the value of F_BASS
Description
high-pass filter control, see
discussion of the high pass corner frequency as a
function of the value of HP_CTRL
bass gain (2 dB steps):
00000: 18 dB
00001: 16 dB
.. ..
01001: 0 dB
.. ..
10001: +16 dB
10010: +18 d8
10011 to 11111: reserved
18 dB
16 dB
.. ..
01001: 0 dB
.. ..
+16 dB
+16 d8
reserved
Section 9.2.3
Table 9
TFA9879
© NXP B.V. 2010. All rights reserved.
Table 9
for a
for the
for the
32 of 60
s
.