參數(shù)資料
型號(hào): STA003
英文描述: MPEG 2.5 LAYER III AUDIO DECODER
中文描述: 2.5第三層的MPEG音頻解碼器
文件頁數(shù): 28/32頁
文件大?。?/td> 299K
代理商: STA003
5.4. TIMING DIAGRAMS
5.4.1. Audio DAC Interface
a) OCLK in output. The audio PLL is used to clock the DAC
OCLK (OUTPUT)
SDO
SCKT
LRCLK
t
sdo
t
sckt
t
lrclk
D98AU969
Pad-timing versus load
Load (pF)
25
50
75
100
Pad_timing
2.90ns
3.82ns
4.68ns
5.52ns
Cload_XXX is the load in pF on the XXX output.
pad_timing (Cload_XXX) is the propagation delay
added to the XXX pad due to the load.
tsdo = 3.5 + pad_timing (Cload_SDO) - pad_timing
(Cload_ OCLK)
tsckt = 4 + pad_timing (Cload_SCKT) - pad_timing
(Cload_ OCLK)
tlrckt = 3.5 + pad_timing (Cload_LRCCKT) -
pad_timing (Cload_ OCLK)
OCLK (INPUT)
SDO
SCKT
LRCLK
t
sdo
t
sckt
t
lrclk
D98AU970
t
hi
t
lo
t
oclk
b) OCLK in input.
Thi min = 3ns
Tlo min = 3ns
Toclk min = 25ns
tsdo = 5.5 + pad_timing (Cload_SDO) ns
tsckt = 6 + pad_timing (Cload_SCKT) ns
tlrckt = 5.5 + pad_timing (Cload_LRCKT) ns
STA003T
28/32
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