MK2745-21
DVD/MPEG CLOCK SOURCE VCXO AND SYNTHESIZER
IDT™
DVD/MPEG CLOCK SOURCE 4
MK2745-21 REV E 122109
Recommended Operation Conditions
DC Electrical Characteristics
VDD = 5.0 V (unless noted), Temp 0 to +70° C
Note 1: With processor clock at 50 MHz and ACLK at 16.93 MHz.
AC Electrical Characteristics
VDD = 5.0 V (unless noted), Temp 0 to +70° C
Thermal Characteristics
Parameter Min. Typ. Max. Units
Ambient Operating Temperature 0 +70 ° C
Power Supply Voltage (measured in respect to GND) +3.0 +5.5 V
Parameter Symbol Conditions Min. Typ. Max. Units
Operating Voltage VDD 3.0 5.5 V
Input High Voltage V
IH
X1/ICLK pin only (VDD/2)+1 V
Input Low Voltage V
IL
X1/ICLK pin only (VDD/2)-1 V
Input High Voltage V
IH
2V
Input Low Voltage V
IL
0.8 V
Output High Voltage V
OH
I
OH
= -25 mA 2.4 V
Output Low Voltage V
OL
I
OL
= 25 mA 0.4 V
Output High Voltage V
OH
I
OH
= -8 mA VDD-0.4 V
Operating Supply Current IDD No Load, Note 1 37 mA
Short Circuit Current I
OS
Each output ±100 mA
Input Capacitance C
IN
7pF
Parameter Symbol Conditions Min. Typ. Max. Units
Input Frequency 27 MHz
Output Clock Rise Time t
OR
0.8 to 2.0 V 1.5 ns
Output Clock Fall Time t
OF
2.0 to 0.8 V 1.5 ns
Output Clock Duty Cycle at VDD/2 40 60 %
Frequency Error 0 1 ppm
Absolute Jitter, short term Variation from mean 200 ps
Parameter Symbol Conditions Min. Typ. Max. Units
Thermal Resistance Junction to
Ambient
θ
JA
Still air 120 ° C/W
θ
JA
1 m/s air flow 115 ° C/W
θ
JA
3 m/s air flow 105 ° C/W
Thermal Resistance Junction to Case θ
JC
58 ° C/W
