tfa9879hn NXP Semiconductors, tfa9879hn Datasheet - Page 34

• 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
10.4.10 Miscellaneous status
Table 33.
Bit
15
14
13
12:11 reserved
10:9
8
7
6
5
4
PORA
IBP(2)
OFP(2)
UFP(2)
IBP(1)
OFP(1)
Symbol
reserved
PS
AMP
Miscellaneous status register (address 15h) bit description
All information provided in this document is subject to legal disclaimers.
Access
R
R
R
R
R
R
R
R
Rev. 01 — 8 April 2010
invalid bit clock protection on serial interface input 2:
underfrequency protection on serial interface input 2:
invalid bit clock protection on serial interface input 1:
Description
power stage status:
analog 1V8 regulator status:
Amplifier mode status:
overfrequency protection on serial interface input 2:
overfrequency protection on serial interface input 1:
0: class-D audio amplifier power stage floating
1: class-D audio amplifier power stage switching; PWM signals
on pins OUTA and OUTB
0: 1V8 analog regulator is off or output voltage level is too low
1: 1V8 analog regulator output is available and correct
00: amplifier is off
01: startup
10: startup
11: amplifier is functional
0: the ratio in frequency between the signal on pin SCK2 and
the signal on pin LRCK2 is valid for the selected interface
format
1: the ratio in frequency between the signal on pin SCK2 and
the signal on pin LRCK2 is invalid for the selected interface
format
0: the frequency of the signal on pin LRCK2 is in line with (or
lower than) the selected interface format
1: the frequency of the signal on pin LRCK2 is higher than the
selected interface format
0: the frequency of the signal on pin LRCK2 is in line with (or
higher than) the selected interface format
1: the frequency of the signal on pin LRCK2 is lower than the
selected interface format
0: the ratio in frequency between the signal on pin SCK1 and
the signal on pin LRCK1 is valid for the selected interface
format
1: the ratio in frequency between the signal on pin SCK1 and
the signal on pin LRCK1 is invalid for the selected interface
format
0: the frequency of the signal on pin LRCK1 is in line with (or
lower than) the selected interface format
1: the frequency of the signal on pin LRCK1 is higher than the
selected interface format
Mono BTL class-D audio amplifier with digital input
TFA9879
© NXP B.V. 2010. All rights reserved.
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