參數(shù)資料
型號(hào): CDB4224
廠商: Cirrus Logic, Inc.
元件分類: Codec
英文描述: 24-Bit 105 dB Audio Codec with Volume Control
中文描述: 24位105分貝的音量控制音頻編解碼器
文件頁數(shù): 9/32頁
文件大小: 778K
代理商: CDB4224
CS4223 CS4224
DS290PP3
9
SWITCHING CHARACTERISTICS - CONTROL PORT - I
2
C MODE (CS4224)
(T
A
= 25° C; VA, VD = 4.75 V - 5.25 V; Inputs: Logic 0 = DGND, Logic 1 = VD; C
L
= 30 pF)
Notes: 15.
Not tested but guaranteed by design.
Data must be held for sufficient time to bridge the 300 ns transition time of SCL.
16.
Parameter
Symbol
Min
Max
Unit
I
2
C
Mode (SPI/I2C = 1)
SCL Clock Frequency
f
scl
t
irs
t
buf
t
hdst
t
low
t
high
t
sust
t
hdd
t
sud
t
rc
t
fc
t
rd
t
fd
t
susp
-
100
-
kHz
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 for SCL falling
SDA setup time to SCL rising
Rise time of SCL
Fall time of SCL
Rise time of SDA
Fall time of SDA
Setup time for Stop Condition
(Note 15)
50
4.7
4.0
4.7
4.0
4.7
0
250
-
-
-
-
4.7
-
-
-
-
-
-
-
μs
μs
μs
μs
μs
μs
ns
ns
ns
μs
ns
μs
(Note 16)
25
25
1
300
-
tbuf
thdst
thdst
tlow
trc
tfc
thdd
thigh
tsud
tsust
tsusp
Stop
Start
Start
Stop
Repeated
SDA
SCL
tirs
RST
trd
tfd
Figure 3. I
2
C Control Port Timing
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