NXP Semiconductors TFA9812 - Manual (Page 36)

TFA9812_2 © NXP B.V. 2009. All rights reserved.
Preliminary data sheet Rev. 02 — 22 January 2009 36 of 66
NXP Semiconductors
TFA9812
BTL stereo Class-D audio amplifier with I 2 S input
9.5.7 Digital-in clock configuration
9.5.8 Thermal foldback control
Table 43. Register 2Dh: digital-in clock configuration
Bit 15 14 13 12 11 10 9 8
Symbol RSD RSD RSD RSD RSD RSD RSD RSD
Default 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
Symbol RSD RSD RSD FSUB3 FSUB2 FSUB1 FSUB0 DI_MS
Default 0 0 0 0 1 1 1 0
Table 44. Bit description of register 2Dh:digital-in clock configuration
Bit Symbol Description
4 to 1 FSUB[3:0] Sample frequency f
s
of digital-in signal:
0 = 8 kHz
1 = 11.025 kHz
2 = 12 kHz
3 = 16 kHz
4 = 22.05 kHz
5 = 24 kHz
6 = 32 kHz
7 = 44.1 kHz
8 = 48 kHz
9 = 64 kHz
10 = 88.2 kHz
11 = 96 kHz
12 = 128 kHz
13 = 176.4 kHz
14 = 192 kHz
15 = RSD
0 DI_MS TFA9812 digital-in Master/Slave mode selection:
0 = Slave mode
1 = Master mode
Table 45. Register 2Eh: thermal foldback control
Bit 15 14 13 12 11 10 9 8
Symbol RSD RSD RSD RSD RSD RSD TP_THR9 TP_THR8
Default 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
Symbol TP_THR7 TP_THR6 TP_THR5 TP_THR4 TP_THR3 TP_THR2 TP_THR1 TP_THR0
Default 0 0 0 0 0 0 0 0