SM55T Series 1.8 V
CMOS Clock Oscillators
June 2007
Electrical Specification for 1.80V +10% over the specified temperature range
_
Item
Output T
RISE
and T
FALL
Typ
2.0
1.7
-
4.0
2.0
V
CC
Supply Current (I
CC
)
-
-
-
-
-
-
Max
5.0
3.5
2.5
10.0
7.0
4
5
8
18
27
37
Unit
nS
nS
nS
nS
nS
mA
mA
mA
mA
mA
mA
Condition
< 35 MHz
> 35 MHz and > 70 MHz
> 70 MHz
< 35 MHz
> 35 MHz and < 70 MHz
< 8 MHz
> 8 MHz and < 16 MHz
> 16 MHz and < 35 MHz
> 35 MHz and < 70 MHz
> 70 MHz and < 120 MHz
> 120 MHz
C
LOAD
= 30 pF
20% to 80% of V
CC
See Load Circuit
C
LOAD
= 15 pF
C
LOAD
= 15 pF
20% to 80% of V
CC
See Load Circuit
Specifications with Pad 1 E/D open circuit
Typical phase noise plot for 5 oscillators at different output frequencies.
0
-20
-40
-60
dBc/Hz
19.4M
25M
32M
50M
66.7M
-80
-100
-120
-140
-160
-180
10
1,000
100,000
10,000,000
Frequency (Hz)
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425-776-1880
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