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SiT8033AC-44-18A-20.00000

产品描述programmable oscillators 20mhz 1.8volts 100ppm -20c +70c
产品类别无源元件   
文件大小347KB,共4页
制造商SiTime
标准
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SiT8033AC-44-18A-20.00000概述

programmable oscillators 20mhz 1.8volts 100ppm -20c +70c

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SiT8033
Low Power 2-Frequency Select Oscillator
Features, Benefits and Applications
The world’s lowest power programmable oscillator with 3.2 mA typical active current
Selectable Output Frequency: F
0
or F
1
where F
1
= F
0/
2, F
0/
3, F
0/
4, or F
0/
8
1-110 MHz frequency range
LVCMOS/LVTTL compatible output
Frequency stability as low as ±20 PPM
Four industry-standard packages: 2.5 x 2.0, 3.2 x 2.5, 5.0 x 3.2, 7.0 x 5.0 mm
All-silicon device with outstanding reliability of 2 FIT (10x improvement over quartz-based devices),
enhancing system mean-time-to-failure (MTBF)
Outstanding mechanical robustness for portable applications
Ultra short lead time
Ideal for applications with common and related frequencies: 48/24/12 MHz for USB, 50/25 MHz for
Ethernet, 24.576/12.288 MHz for audio, 54/27 MHz for video, 66/33 MHz for CPU
Specifications
Electrical Characteristics
Parameter
Frequency Range
Output Frequency
Symbol
f
F
0
F
1
Frequency Stability
F_stab
Min.
1
2
1
-20
-25
-30
-50
Aging
Operating Temperature Range
Supply Voltage
Ag
T_use
Vdd
-1.0
-20
-40
1.71
2.25
2.52
2.97
45
40
-
90%
Typ.
1.8
2.5
2.8
3.3
3.7
3.2
50
50
1
1.3
Max.
110
110
55
+20
+25
+30
+50
1.0
+70
+85
1.89
2.75
3.08
3.63
4.1
3.5
55
60
2
2.5
Unit
MHz
MHz
MHz
PPM
PPM
PPM
PPM
PPM
°C
°C
V
V
V
V
mA
mA
%
%
ns
ns
Vdd
Condition
The actual output frequency of the CLK pin is selected by the FS
(frequency select pin) to be either F
0
or F
1
.
Inclusive of: Initial stability, operating temperature, rated power,
supply voltage change, load change, shock and vibration
± 20 PPM available in extended commercial
temperature only
1st year at 25°C
Extended Commercial
Industrial
Current Consumption
Duty Cycle
Rise/Fall Time
Output Voltage High
Idd
DC
Tr, Tf
VOH
No load condition, f = 20 MHz, Vdd = 2.5 V, 2.8 V or 3.3 V
No load condition, f = 20 MHz, Vdd = 1.8 V
All Vdds. f <= 75 MHz
All Vdds. f > 75 MHz
20% - 80% Vdd=2.5 V, 2.8 V or 3.3 V, 15 pf load
20% - 80% Vdd=1.8 V, 15 pf load
IOH = -4 mA (Vdd = 3.3 V)
IOH = -3 mA (Vdd = 2.8 V and Vdd = 2.5 V)
IOH = -2 mA (Vdd = 1.8 V)
IOL = 4 mA (Vdd = 3.3 V)
IOL = 3 mA (Vdd = 2.8 V and Vdd = 2.5 V)
IOL = 2 mA (Vdd = 1.8 V)
At maximum frequency and supply voltage. Contact SiTime for
higher output load option.
Pin 1, OE or ST
Pin 1, OE or ST
Measured from the time Vdd reaches its rated minimum value
Measured from the time ST pin crosses 50% threshold
f = 75 MHz, Vdd = 2.5 V, 2.8 V or 3.3 V
f = 75 MHz, Vdd = 1.8 V
f = 75 MHz, Integration bandwidth = 900 kHz to 7.5 MHz,
VDD = 2.5 V, 2.8 V, or 3.3 V
f = 75 MHz, Integration bandwidth = 900 kHz to 7.5 MHz,
VDD = 1.8 V
Output Voltage Low
VOL
10%
Vdd
Output Load
Input Voltage High
Input Voltage Low
Startup Time
Resume Time
RMS Period Jitter
RMS Phase Jitter (random)
Ld
VIH
VIL
T_osc
T_resume
T_jitt
T_phj
70%
3.0
0.6
0.8
15
30%
10
4
4.0
6.5
pF
Vdd
Vdd
ms
ms
ps
ps
ps
ps
SiTime Corporation
Rev. 1.4
990 Almanor Avenue
Sunnyvale, CA 94085
(408) 328-4400
www.sitime.com
Revised May 30, 2010
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