MT88E45
Data Sheet
AC Electrical Characteristics† - 3-Wire FSK Data Interface Timing (Mode 1)
Characteristics
Frequency
Sym.
Min.
Max.
Units
Notes
1
2
3
4
5
fDCLK1
1
MHz
%
DCLK
Duty cycle
30
70
Rise time
tR1
100
ns
DCLK low set up before DR
tDDS
500
500
ns
DCLK
DR/STD
DCLK low hold time after DR
† AC Electrical Characteristics are over recommended operating conditions unless otherwise stated.
tDDH
ns
AC Electrical Characteristics - Timing Parameter Measurement Voltage Levels
Characteristics
Sym.
Level
Units
Notes
1
2
3
CMOS Threshold Voltage
VCT
VHM
VLM
0.5*VDD
0.7*VDD
0.3*VDD
V
V
V
Rise/Fall Threshold Voltage High
Rise/Fall Threshold Voltage Low
t
t
CDD
DCD
VHM
VCT
VLM
DATA
DCLK
t
F
t
R
VHM
VCT
VLM
t
t
CH
CL
t
t
R
F
Figure 10 - DATA and DCLK Mode 0 Output Timing
t
t
RR
RF
VHM
VCT
VLM
DR
t
RL
Figure 11 - DR Output Timing
22
Zarlink Semiconductor Inc.
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
