AK2546 Datasheet, PDF (12/27 Pages) Asahi Kasei Microsystems – 7 channel T1 Transceiver

ASAHI KASEI
AC CHARACTERISTICS (Clock/Data)
[AK2546]
Parameter
Symbol Min
Typ
Max Units Condition
Clock Frequency
MCLK Fci 1.543846 1.544000 1.544154 MHz ±100ppm
24.70153 24.70400 24.70647
Clock Pulse Width
MCLK tpwhi
324
TCLK tpwli
ns RefertoFig.2
Clock Pulse Width
RCLK
tpwho
tpwlo
324
ns RefertoFig.1
Duty Cycle
RCLK
50
% Note1
TCLK
Setup/Hold Time
RCLK tsu1
150
RPOS th1
RNEG
ns RefertoFig.1
Setup/Hold Time
TCLK tsu2
50
TPOS th2
TNEG
ns RefertoFig.2
Rise Time
RCLK tr
RPOS
100
ns RefertoFig.3
Note2
RNEG
Fall Time
TCLK tf
TPOS
40
ns RefertoFig.3
Note2
TNEG
Note1) Duty Cycle:(tpwho/( tpwho+tpwlo))×100%
Note2) Drive 15pF Load Capacitance
C0019-E-01
12
1999/9