參數(shù)資料
型號: UDA1340
廠商: NXP Semiconductors N.V.
元件分類: Codec
英文描述: Low-voltage low-power stereo audio CODEC with DSP features
中文描述: 低電壓低功耗立體聲音頻編解碼器與數(shù)字信號處理功能
文件頁數(shù): 12/24頁
文件大?。?/td> 154K
代理商: UDA1340
1997 Jul 09
12
Philips Semiconductors
Preliminary specification
Low-voltage low-power stereo audio
CODEC with DSP features
UDA1340
S
YSTEM CLOCK FREQUENCY
A 2-bit value (SC1 and SC0) to select the used external
clock frequency (see Table 7).
Table 7
System clock frequency settings
D
ATA INPUT FORMAT
A 3-bit value (IF2 to IF0) to select the used data format
(see Table 8).
Table 8
Data input format settings
SC1
SC0
FUNCTION
0
0
1
1
0
1
0
1
512f
s
384f
s
256f
s
not used
IF2
IF1
IF0
FUNCTION
I
2
S-bus
LSB justified, 16 bits
LSB justified, 18 bits
LSB justified, 20 bits
MSB justified
not used
not used
not used
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
DC-
FILTER
A 1-bit value to enable the digital DC-filter (see Table 9).
Table 9
DC-filtering
V
OLUME CONTROL
A 6-bit value to program the left and right channel volume
attenuation (VC5 to VC0). The range is 0 dB to
dB in
steps of 1 dB (see Table 10).
Table 10
Volume settings
DC
FUNCTION
0
1
no DC-filtering
DC-filtering
VC5
VC4
VC3
VC2
VC1
VC0
VOLUME
(dB)
0
0
0
0
:
1
1
1
1
1
0
0
0
0
:
1
1
1
1
1
0
0
0
0
:
1
1
1
1
1
0
0
0
0
:
0
1
1
1
1
0
0
1
1
:
1
0
0
1
1
0
1
0
1
:
1
0
1
0
1
0
0
1
2
:
58
59
60
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