參數(shù)資料
型號： 935261790112
廠商： NXP SEMICONDUCTORS
元件分類： 消費家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PDSO28
封裝： 5.30 MM, PLASTIC, SSOP-28
文件頁數(shù)： 6/31頁
文件大?。?/td> 199K
代理商： 935261790112
2000 Feb 04
14
Philips Semiconductors
Preliminary specication
Low-voltage low-power stereo audio
CODEC with DSP features
UDA1344TS
SYSTEM CLOCK FREQUENCY
A 2-bit value to select the used external clock frequency.
Table 16 System clock frequency settings
DATA INPUT FORMAT
A 3-bit value to select the used data format.
Table 17 Data format settings
DC FILTER
A 1-bit value to enable the digital DC filter.
Table 18 DC ltering
VOLUME CONTROL
A 6-bit value to program the left and right channel volume
attenuation. The range is from 0 to
∞ dB in steps of 1 dB.
Table 19 Volume settings
BASS BOOST
A 4-bit value to program the bass boost setting. The used
set depends on the mode bits M1 and M0.
Table 20 Bass boost settings
SC1
SC0
SELECTION
0
512fs
0
1
384fs
1
0
256fs
1
not used
IF2
IF1
IF0
FORMAT
000
I2S-bus
0
1
LSB-justied 16 bits
0
1
0
LSB-justied 18 bits
0
1
LSB-justied 20 bits
1
0
MSB-justied
1
0
1
input: LSB-justied 16 bits;
output: MSB-justied
1
0
input: LSB-justied 18 bits;
output: MSB-justied
1
input: LSB-justied 20 bits;
output: MSB-justied
DC
SELECTION
0
no DC ltering
1
DC ltering
VC5 VC4 VC3 VC2 VC1 VC0
VOLUME (dB)
000000
0
000001
0
000010
1
000011
2
::::::
:
111011
58
111100
59
111101
60
111110
∞
111111
∞
BB3 BB2 BB1 BB0
BASS BOOST SETTING
FLAT
(dB)
MIN.
(dB)
MAX.
(dB)
0000
0
0001
0
2
0010
0
4
0011
0
6
0100
0
8
0101
0
10
0110
0
12
0111
0
14
1000
0
16
1001
0
18
1010
0
18
20
1011
0
18
22
1100
0
18
24
1101
0
18
24
1110
0
18
24
1111
0
18
24
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