參數(shù)資料
型號(hào): STA450A
廠商: 意法半導(dǎo)體
英文描述: XMRADIO SDARS SERVICE LAYER & SOURCE DECODER
中文描述: XMRADIO衛(wèi)星數(shù)字收音機(jī)服務(wù)層
文件頁(yè)數(shù): 61/66頁(yè)
文件大?。?/td> 439K
代理商: STA450A
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STA450A
a) OCLK in output. The audio PLL is used to clock the DAC
Notations: 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. The following table gives this timing
.
tsdo_max = 3.5 + pad_timing(Cload_SDO) - pad_timing(Cload_OCLK)
tsckt_max = 4.0 + pad_timing(Cload_SCKT) - pad_timing(Cload_OCLK)
tlrckt_max = 3.5 + pad_timing(Cload_LRCKT) - pad_timing(Cload_OCLK)
The Tr and Tf depends on the load on the different pads but at a given load, the Tr and Tf timings are identical
for OCLK(output case), SCKT, LRCKT, SDO.
b) OCLK in input
Thi min = 5 ns
Tlo min = 5 ns
Toclk min = 25 ns
tsdo_max = 5.5 + pad_timing(Cload_SDO) ns
Load (pF)
max pad_timing (rise)
max pad_timing (fall)
25
6 ns
10.6 ns
50
10 ns
13 ns
75
12 ns
15.4 ns
100
14 ns
18 ns
OCLK (output)
SDO
SCKT
LRCKT
tr
tf
tsdo
tsckt
tlrckt
OCLK (input)
SDO
SCKT
LRCKT
tr
tf
tsdo
tsckt
tlrckt
toclk
thi
tlo
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