ICS650-27 Datasheet, PDF (5/6 Pages) Integrated Circuit Systems – Networking Clock Source

ICS650-27
Networking Clock Source
DC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V ±10%, Ambient Temperature -40 to +85°C
Parameter
Symbol
Conditions
Min.
Operating Voltage
VDD
3.0
Input High Voltage
Input Low Voltage
Input High Voltage
Input Low Voltage
Input High Voltage
Input Low Voltage
Output High Voltage
Output Low Voltage
Output High Voltage, CMOS level
Operating Supply Current
Short Circuit Current
Internal pull-up resistor
V_IH X1 pin only, CLK input
V_IL X1 pin only, CLK input
V_IH all tri-level type inputs
V_IL all tri-level type inputs
V_IH all other inputs
V_IL all other inputs
V_OH I_OH = -25 mA
V_OL I_OL = 25mA
V_OH I_OH = -8 mA
I_DD No Load
I_OS Each output
R_PU BCS1, OE pins
ACSI pin
VDD/2+1
VDD-0.5
2
2.4
VDD-0.4
Nominal output impedance
Z_OUT
Typ.
3.3
VDD/2
VDD/2
50
±50
510
120
20
Max.
3.6
VDD/2-1
0.5
0.8
0.8
Units
V
V
V
V
V
V
V
V
V
V
mA
mA
kΩ
kΩ
Ω
AC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V±10%, Ambient Temperature -40 to +85°C
Parameter
Symbol
Conditions
Min.
Input Frequency
10
Output Rise Time
Output Fall Time
Output Clock Duty Cycle
Frequency Error
Absolute Jitter, short term
t_OR 0.8 to 2.0 V, Note 1
t_OF 2.0 to 0.8 V, Note 1
At VDD/2, Note 1
40
All clocks
Variation from mean,
Note 1
Note 1: Measured with 15 pF load
Typ. Max. Units
12.5 or 27
25
MHz
1.5 ns
1.5 ns
50
60
%
0 ppm
±150
ps
Thermal Characteristics
Parameter
Thermal Resistance Junction to Ambient
Thermal Resistance Junction to Case
Symbol Conditions
θ_JA
Still air
θ_JA 1 m/s air flow
θ_JA 3 m/s air flow
θ_JC
Min.
Typ.
135
93
78
60
Max. Units
°C/W
°C/W
°C/W
°C/W
MDS 650-27 D
5
Revision 070505
Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel [phone] ● www.icst.com