參數資料
型號: 935233970512
廠商: NXP SEMICONDUCTORS
元件分類: 噪聲抑制
英文描述: B Type, DOLBY NOISE REDUCTION IC, PDSO32
封裝: 7.50 MM, PLASTIC, SOT-287-1, SOP-32
文件頁數: 31/31頁
文件大?。?/td> 228K
代理商: 935233970512
1998 Mar 13
9
Philips Semiconductors
Product specication
Dolby* Pro Logic Surround;
Incredible Sound
SAA7710T
Table 1
Data Accuracy in I2S-bus Interface
INCOMING DATA WIDTH
I2S-BUS IN DATA WIDTH
I2S-BUS OUT DATA WIDTH
A<18
A
B
≥18
18
THE I2S-BUS OUTPUT INTERFACE
The I2S-bus data output interfaces (see Fig.1) I2S OUT 1,
I2S OUT 2 and I2S OUT 3 use the same I2S-bus data
signals which are selected by the input switch circuit. The
I2S-bus WS and BCK output signals remain in phase with
the external input signals at all times. The output data is
1/fs cycle delayed relative to the input data. The selected
word-select and bit-clock are included as part of the output
interface: I2S_WSOUT, I2S_BCKOUT. These two output
signals can be 3-stated by setting the DIS_BCKWS bit
(see Table 4). The 3-state output of the I2S_DATAOUT3
signal can be enabled by setting the ENA_I2S3 bit (see
Table 4).
The timing diagram of the I2S-bus outputs is shown in
Fig.6. The timing details can be found in Chapter “AC
characteristics”.
Fig.6 Timing diagram of I2S-bus output interface.
handbook, full pagewidth
MGE755
tHC
tLC
td1
tf
tr
tf
tr
td3
tf
tr
ts2
td2
tacc
CL
WS
DATA (in)
DATA (out)
DATA VALID
MSB
I2S_BCKIN1, 2
I2S_BCKOUT
I2S_WSIN1, 2
I2S_WSOUT
I2S_DATAIN1, 2
I2S_DATAOUT1, 2, 3
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