TFA9812HN PHILIPS [NXP Semiconductors], TFA9812HN Datasheet - Page 38

• Manufacturer Part Number: TFA9812HN
• Description: BTL stereo Class-D audio amplifier with I2S input
• Manufacturer: PHILIPS [NXP Semiconductors]

NXP Semiconductors
TFA9812_2
Preliminary data sheet
9.6 Overview of functional control in each control mode
Table 50.
[1]
Table 51
functions described in
description of each function.
Table 51.
D = fixed control setting, determined by default I
supported (i.e. all options implemented in the TFA9812).
Bit
3
2
1
0
Control function
I
Sleep mode enable
Operating mode enable
3-state mode enable
Master/Slave I
MCLK/BCK master input clock selection
Digital audio input format selection
Selection f
Equalizer enable and configuration
Detailed equalizer settings
Digital volume control per channel
Analog volume control (shared for two channels)
De-emphasis for subset of allowed f
Soft mute
Hard mute
Polarity switch enable
+24 dB gain boost
2
C register content
The diagnostic pin 30 DIAG is flagged when several protection mechanisms have been active, see
Section
shows the control level supported by either I
s
8.7.
Bit description of register 30h: miscellaneous status
Functional control support in I
= 8 kHz to192 kHz
2
S
Symbol
UVP3V3
DIAG
LP
MUTE
Rev. 02 — 22 January 2009
Section
9. It summarizes the information provided in the detailed
s
Description
Undervoltage detector for pins 3 and 40:
Diagnostic pin flagging status
PLL lock protection indicator:
Soft mute status:
BTL stereo Class-D audio amplifier with I
0 = No UVP has been detected
1 = A UVP has been detected since the last read-out of
the register
0 = Diagnostic pin has not been flagged low
1 = Diagnostic pin has been flagged low since the last
read-out of the register
0 = PLL is in locked status
1 = PLL is not in locked status
0 = No soft-mute or soft mute/demute in progress
1 = Audio signal muted as result of a soft mute
2
C and Legacy control modes
2
C register setting; N = not supported; Y = fully
Reference
Section 9
Section 8.2.2
Section 8.2.2
Section 8.2.2
Section 8.2.3
Section 8.2.3
Section 8.4
Section 8.4.1
Section 8.5.1
Section 8.5.1
Section 8.5.2
Section 8.5.3
Section 8.5.3
Section 8.5.3
Section 8.5.3
Section 8.5.4
Section 8.5.6
2
C or Legacy control mode for all
I
Y
Y
Y
Y
Y
Auto
Y
Y
Y
Y
Y
N
Y
Y
Y
Y
Y
2
C mode
…continued
[1]
:
© NXP B.V. 2009. All rights reserved.
TFA9812
Legacy mode
N/D
Y
Y
Y
Y
Auto
Subset
D
D
N
N
Y
N
Y
N
N
Y
[3]
[1]
[2]
2
S input
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