SM55G 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
1.5
1.7
1.5
4
2
6
6
V
CC
Supply Current (I
CC
)
2
2.5
5
-
17
23
2.5
3
4
10
2.5
4
5
13
Max
3
3.5
2.5
7
7
12
11
4
5
8
18
27
37
4.5
5
8
20
4
6
9
23
Unit
nS
nS
nS
nS
nS
nS
nS
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
Condition
< 35 MHz
> 35 MHz and < 70 MHz
> 70 MHz
< 35 MHz
> 35 MHz < 70 MHz
< 35 MHz
> 35 MHz and < 45 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
< 8 MHz
> 8 MHz and < 16 MHz
> 16 MHz and < 35 MHz
> 35 MHz and < 70 MHz
< 8 MHz
> 8 MHz and < 16 MHz
> 16 MHz and < 35 MHz
> 35 MHz and < 45 MHz
C
LOAD
= 50 pF
C
LOAD
= 30 pF
C
LOAD
= 30 pF
20% to 80% of V
CC
See Load Circuit
C
LOAD
= 50 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
NOTE: Not specified for 50 pF loads above 45 MHz, or 30 pF loads above 70 MHz
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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