参数资料
型号: EVAL-SSM2518Z
厂商: Analog Devices Inc
文件页数: 46/48页
文件大小: 0K
描述: BOARD EVAL FOR SSM2518
标准包装: 1
系列: *
Data Sheet
SSM2518
Rev. A | Page 7 of 48
DIGITAL TIMING
All timing specifications are given for the default setting (I2S mode) of the serial input port.
Table 5.
Limit
Parameter
Min
Max
Unit
Description
MASTER CLOCK
tMP
74
136
ns
MCLK period, 256 × fS mode (MCS = b0010)
tMP
148
271
ns
MCLK period, 128 × fS mode (MCS = b0001)
SERIAL PORT
tBIL
40
ns
BCLK low pulse width
tBIH
40
ns
BCLK high pulse width
tLIS
10
ns
Setup time from LRCLK or SDATA edge to BCLK rising edge
tLIH
10
ns
Hold time from BCLK rising edge to LRCLK or SDATA edge
tSIS
10
ns
SDATA setup time to BCLK rising
tSIH
10
ns
SDATA hold time from BCLK rising
I2C PORT
fSCL
400
kHz
SCL frequency
tSCLH
0.6
μs
SCL high
tSCLL
1.3
μs
SCL low
tSCS
0.6
μs
Setup time; relevant for repeated start condition
tSCH
0.6
μs
Hold time; after this period, the first clock is generated
tDS
100
ns
Data setup time
tSCR
300
ns
SCL rise time
tSCF
300
ns
SCL fall time
tSDR
300
ns
SDA rise time
tSDF
300
ns
SDA fall time
tBFT
0.6
μs
Bus-free time (time between stop and start)
Digital Timing Diagrams
tSIS
tSIH
tSIS
tSIH
tLIH
tBP
tBIH
BCLK
LRCLK
SDATA
LEFT-JUSTIFIED
MODE
SDATA
I2C-JUSTIFIED
MODE
SDATA
RIGHT-JUSTIFIED
MODE
tBIL
tLIS
tSIS
tSIH
tSIS
tSIH
MSB
LSB
MSB – 1
10
242
-0
02
Figure 2. Serial Input Port Timing
tSCH
tSCS
tBFT
tSCF
tDS
tSCLL
tSCR
tSCLH
tSCH
STOP
CONDITION
START
CONDITION
SDA
SCL
10
24
2-
0
03
Figure 3. I2C Port Timing
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