參數(shù)資料
型號(hào): CDB4270
廠商: Cirrus Logic, Inc.
元件分類: Codec
英文描述: 24-Bit, 192 kHz Stereo Audio CODEC
中文描述: 24位192千赫立體聲音頻CODEC
文件頁數(shù): 19/48頁
文件大小: 730K
代理商: CDB4270
DS686A1
19
CS4270
SWITCHING CHARACTERISTICS - I2C MODE CONTROL PORT
(Inputs: logic 0 = DGND, logic 1 = VLC)
18. Data must be held for sufficient time to bridge the 300 ns transition time of SCL.
Parameter
Symbol
Min
Max
Unit
I2C Mode
SCL Clock Frequency
f
scl
t
irs
t
buf
t
hdst
t
low
t
high
t
sust
t
hdd
t
sud
t
r
t
f
t
susp
-
100
-
-
-
-
-
-
-
-
1
300
-
kHz
ns
μs
μs
μs
μs
μs
μs
ns
μs
ns
μs
RST Rising Edge to Start
Bus Free Time Between Transmissions
Start Condition Hold Time (prior to first clock pulse)
Clock Low time
Clock High Time
Setup Time for Repeated Start Condition
SDA Hold Time from SCL Falling
500
4.7
4.0
4.7
4.0
4.7
0
250
-
-
4.7
(
Note 18
)
SDA Setup time to SCL Rising
Rise Time of Both SDA and SCL Lines
Fall Time of Both SDA and SCL Lines
Setup Time for Stop Condition
t
buf
thdst
t
hdst
t
low
t
r
t
f
t
hdd
thigh
t
sud
t
sust
t
susp
Stop
Start
Start
Stop
Repeated
SDA
SCL
t
irs
RST
Figure 8. I2C Mode Control Port Timing
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