ASM3P2855B PulseCore Semiconductor, ASM3P2855B Datasheet - Page 4

• Manufacturer Part Number: ASM3P2855B
• Description: Custom Clock Generator
• Manufacturer: PulseCore Semiconductor

August 2007
rev 0.3
AC Electrical Characteristics
Typical Crystal Oscillator Circuit
Typical Crystal Specifications
* t
Fundamental AT cut parallel resonant crystal
Nominal frequency
Frequency tolerance
Operating temperature range
Storage temperature
Load capacitance
Shunt capacitance
ESR
LH
XIN / CLKIN
and t
Symbol
F
t
t
HL
t
LH
OUT
t
HL
JC
D
*
*
are measured into a capacitive load of 15pF
Input frequency
Output frequency
Output rise time (measured from 0.8 to 2.0V)
Output fall time (measured at 2.0V to 0.8V)
Jitter (Cycle to cycle)
Output duty cycle
Notice: The information in this document is subject to change without notice.
Custom Clock Generator for Fax System
Parameter
At Pins 7,8,9,10,11,13,14,15
At Pin 12
At Pin 16
C1
Crystal
24MHz
± 50 ppm or better at 25°C
-25°C to +85°C
-40°C to +85°C
18pF
7pF maximum
25 Ω
R1 = 510Ω
C2
Min
40
19.52
Typ
250
0.9
0.7
ASM3P2855B
24
50
24
50
www.DataSheet4U.com
Max
60
4 of 7
Unit
MHz
MHz
nS
nS
pS
%