sta335bwsqs13tr STMicroelectronics, sta335bwsqs13tr Datasheet - Page 25

• Manufacturer Part Number: sta335bwsqs13tr
• Description: 2.1-channel, High-efficiency Digital Audio System With Qsound Qhd
• Manufacturer: STMicroelectronics

STA335BWSQS
6.1
6.1.1
Configuration register A (addr 0x00)
Master clock select
Table 9.
The STA335BWSQS supports sample rates of 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz,
176.4 kHz, and 192 kHz. Therefore the internal clock is:
"
"
"
The external clock frequency provided to the XTI pin must be a multiple of the input sample
frequency (f
The relationship between the input clock and the input sample rate is determined by both
the MCSx and the IR (input rate) register bits. The MCSx bits determine the PLL factor
generating the internal clock and the IR bit determines the oversampling ratio used
internally
Table 10.
Bit
Input sample rate
FDRB
0
1
2
D7
32.768 MHz for 32 kHz
45.1584 MHz for 44.1 kHz, 88.2 kHz, and 176.4 kHz
49.152 MHz for 48 kHz, 96 kHz, and 192 kHz
0
32, 44.1, 48
176.4, 192
fs (kHz)
88.2, 96
s
RW
RW
RW
RW
MCS
).
Input sampling rates
TWAB
D6
1
RST
1
1
0
1X
00
01
IR
TWRB
D5
1
576fs
101
NA
NA
Name
MCS0
MCS1
MCS2
IR1
D4
0
128fs
64fs
32fs
100
Description
Selects the ratio between the input I
IR0
D3
0
256fs
128fs
64fs
011
frequency and the input clock.
MCS[2:0]
MCS2
D2
0
384fs
192fs
96fs
010
Register description
512fs
256fs
128fs
MCS1
001
D1
1
2
S sample
768fs
384fs
192fs
000
MCS0
D0
1
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