參數(shù)資料
型號(hào): CDB43122
廠商: Cirrus Logic, Inc.
英文描述: 122dB, 24-Bit, 192kHz DAC for Digital Audio
中文描述: 122分貝,24位,192kHz的數(shù)字音頻數(shù)模轉(zhuǎn)換器
文件頁數(shù): 11/28頁
文件大小: 523K
代理商: CDB43122
CS43122
11
SWITCHING CHARACTERISTICS - CONTROL PORT
(T
A
= 25° C; VD = 5.25 V to 3.0 Volts; Inputs: logic 0 = AGND, logic 1 = VD, C
L
= 30 pF)
Notes: 9.
t
spi
only needed before first falling edge of CS after RST rising edge. t
spi
= 0 at all other times.
Data must be held for sufficient time to bridge the transition time of CCLK.
For F
SCK
< 1 MHz
10.
11.
Parameter
Symbol
Min
Max
Unit
SPI Mode
CCLK Clock Frequency
f
sclk
t
srs
t
spi
t
csh
t
css
t
scl
t
sch
t
dsu
t
dh
t
r2
t
f2
t
ov
-
6
MHz
RST Rising Edge to CS Falling
500
-
ns
CCLK Edge to CS Falling
(Note 9)
500
-
ns
CS High Time Between Transmissions
1.0
-
μs
CS Falling to CCLK Edge
20
-
ns
CCLK Low Time
66
-
ns
CCLK High Time
66
-
ns
CDIN to CCLK Rising Setup Time
40
-
ns
CCLK Rising to DATA Hold Time
(Note 10)
15
-
ns
Rise Time of CCLK and CDIN
(Note 11)
-
100
ns
Fall Time of CCLK and CDIN
(Note 11)
-
100
ns
CCLK Falling to CDOUT valid
45
ns
tr2
tf2
t
dsu
t
dh
t
sch
tscl
CS
CCLK
CDIN
tcss
t
csh
tspi
tsrs
RST
Figure 3. SPI Control Port Timing
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