t
參數(shù)資料
型號: EVAL-SSM2517Z
廠商: Analog Devices Inc
文件頁數(shù): 12/16頁
文件大?。?/td> 0K
描述: BOARD EVALUATION FOR SSM2517
標(biāo)準(zhǔn)包裝: 1
系列: *
Data Sheet
SSM2517
Rev. B | Page 5 of 16
PDM INTERFACE DIGITAL TIMING SPECIFICATIONS
Table 3.
Limit
Parameter
tMIN
tMAX
Unit
Description
tDS
44
ns
Valid data start time1
tDE
7
ns
Valid data end time1
1 The SSM2517 was designed so that the data line can transition coincident with or close to a clock edge. It is not necessary to delay the data line transition until after the
clock edge because the SSM2517 does this internally to ensure good timing margins. The data line should remain constant during the valid sample period illustrated
in Figure 2; it may transition at any other time. Timing is measured from 70% of VDD on the rising edge or 30% VDD on the falling edge.
Timing Diagram
0
921
1
-00
2
tDS
tDE
PCLK
PDAT
VALID LEFT SAMPLE
VALID RIGHT SAMPLE
Figure 2. PDM Interface Timing
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