參數(shù)資料
型號(hào): AK2548
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: 7 channel E1 Transceiver
中文描述: 7頻道E1收發(fā)器
文件頁(yè)數(shù): 12/30頁(yè)
文件大?。?/td> 158K
代理商: AK2548
ASAHI K ASEI [AK2548]
C0028-E-00 1999/9
12
AC CHARACTERISTICS(Clock/Data)
Parameter
Symbol
Min
Typ
Max
Units
Condition
Clock Frequency
MCLK
fci
2.
047795
32.76472
2.
048000
32.76800
2.048204
32.77127
MHz
MHz
±
100ppm
Clock Pulse Width
TCLK
t
pwhi
t
pwli
244
ns
Refer to Fig.2
Clock Pulse Width
RCLK
t
pwho
t
pwlo
244
ns
Refer to Fig.1
Duty Cycle
RCLK
TCLK
50
%
Note1
Setup/Hold Time
RCLK
RPOS
RNEG
t
su1
t
h1
150
ns
Refer to Fig.1
Setup/Hold Time
TCLK
TPOS
TNEG
t
su2
t
h2
50
ns
Refer to Fig.2
Rise Time
t
r
100
ns
Refer to Fig.3
Note2
Fall Time
RCLK
RPOS
RNEG
TCLK
TPOS
TNEG
t
f
40
ns
Refer to Fig.3
Note2
Note1) Duty Cycle:(t
pwho
/( t
pwho
+t
pwlo
))×100%
Note2) Drive 15pF Load Capacitance
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