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Número de pieza | SiT8004 | |
Descripción | Low Power Oscillator | |
Fabricantes | Si Time | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de SiT8004 (archivo pdf) en la parte inferior de esta página. Total 4 Páginas | ||
No Preview Available ! SiT8004
Low Power Oscillator for High Frequency Applications
■ Features, Benefits and Applications
■ Lowest power, high frequency oscillator with 6.3 mA typical active current
■ 125MHz to 150MHz frequency range
■ LVCMOS/LVTTL compatible output
■ Excellent frequency stability over temperature, ±20 PPM
■ Ultra low standby current, 1.2 µA
■ Standby or output enable modes
■ 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
■ Drop-in replacement of quartz
■ Ultra short lead time
■ All-silicon device with outstanding reliability of 2 FIT (10x improvement over quartz-based devices),
enhancing system mean-time-to-failure (MTBF)
■ Ideal for high frequency applications in networking, storage, computer servers and communications
■ Ideal for high speed protocals: GPON, EPON, Ethernet, SATA/SAS, DDR, PCI
■ Specifications
Electrical Characteristics
Parameter
Symbol Min. Typ. Max. Unit
Condition
Output Frequency Range
Frequency Stability
f 125 - 150 MHz
F_stab
-20
–
+20 PPM Inclusive of: Initial stability, operating temperature, rated power,
-25 – +25 PPM supply voltage change, load change, shock and vibration
-50 – +50 PPM ± 20 PPM available in extended commercial temperature only
Aging
Ag –1.0
–
1.0 PPM 1st year at 25°C
Operating Temperature Range T_use
-20
–
+70 °C Extended Commercial
-40 – +85 °C Industrial
Supply Voltage
Vdd 2.25 2.5 2.75
V
2.52 2.8 3.08
V
2.97 3.3 3.63
V
Current Consumption
Idd – 6.7 8 mA No load condition, f = 125 MHz, Vdd = 3.3 V
– 6.2 7 mA No load condition, f = 125 MHz, Vdd = 2.5 V or 2.8 V
Standby Current
I_std
–
2.4 4.3 µA ST = GND, Vdd = 3.3 V, Output is Weakly Pulled Down
– 1.2 2.2 µA ST = GND, Vdd = 2.5 or 2.8 V, Output is Weakly Pulled Down
Duty Cycle
DC 40 50 60 % All Vdds
Rise/Fall Time
Tr, Tf
–
1
2 ns 20% - 80% Vdd=2.5 V, 2.8 V or 3.3 V, 15 pf load
Output Voltage High
VOH
90%
–
– Vdd IOH = -4 mA (Vdd = 3.3 V)
IOH = -3 mA (Vdd = 2.8 V and Vdd = 2.5 V)
Output Voltage Low
VOL
–
–
10%
Vdd IOL = 4 mA (Vdd = 3.3 V)
IOL = 3 mA (Vdd = 2.8 V and Vdd = 2.5 V)
Output Load
Ld –
– 15 pF At 125MHz and max supply voltage. Contact SiTime for higher output
load option
Input Voltage High
VIH 70%
–
– Vdd Pin 1, OE or ST
Input Voltage Low
VIL –
–
30%
Vdd Pin 1, OE or ST
Startup Time
T_start
–
– 10 ms Measured from the time Vdd reaches its rated minimum value
Resume Time
T_resume
–
3.0 3.8 ms Measured from the time ST pin crosses 50% threshold
RMS Period Jitter
T_jitt
–
– 4.5 ps f = 125 MHz, Vdd = 2.5 V, 2.8 V or 3.3 V
RMS Phase Jitter (random)
T_phj
–
0.5
–
ps f = 125 MHz, Integration bandwidth = 900 kHz to 7.5 MHz,
VDD = 2.5 V, 2.8 V, or 3.3 V
SiTime Corporation
Rev. 1.0
990 Almanor Avenue
Sunnyvale, CA 94085
(408) 328-4400
www.sitime.com
Revised November 11, 2010
1 page |
Páginas | Total 4 Páginas | |
PDF Descargar | [ Datasheet SiT8004.PDF ] |
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