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Número de pieza | SiT3809 | |
Descripción | 80 MHz to 220 MHz MEMS VCXO | |
Fabricantes | SiTime | |
Logotipo | ||
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No Preview Available ! SiT3809
80 MHz to 220 MHz MEMS VCXO
Features
Any frequency between 80.000001 MHz and 220 MHz with 6 decimal
places of accuracy
100% pin-to-pin drop-in replacement to quartz-based VCXO
Frequency stability as tight as ±10 ppm
Widest pull range options from ±25 ppm to ±1600 ppm
Industrial or extended commercial temperature range
Superior pull range linearity of ≤1%, 10 times better than quartz
LVCMOS/LVTTL compatible output
Four industry-standard packages: 2.5 mm x 2.0 mm (4-pin),
3.2 mm x 2.5mm (4-pin), 5.0 mm x 3.2 mm (6-pin), 7.0 mm x 5.0 mm
(6-pin)
Instant samples with Time Machine II and field programmable
oscillators
RoHS and REACH compliant, Pb-free, Halogen-free and
Antimony-free
TThhee SSmmaarrtt TTiimmiinngg CChhooiiccee
Applications
Telecom clock synchronization, instrumentation
Low bandwidth analog PLL, jitter cleaner, clock recovery, audio
Video, 3G/HD-SDI, FPGA, broadband and networking
Electrical Specifications
Table 1. Electrical Characteristics[1, 2, 3]
Parameter
Output Frequency Range
Frequency Stability
Aging
Operating Temperature Range
Supply Voltage
Current Consumption
Standby Current
Pull Range[5, 6]
Upper Control Voltage
Lower Control Voltage
Control Voltage Input Impedance
Control Voltage Input Capacitance
Linearity
Frequency Change Polarity
Control Voltage Bandwidth (-3dB)
Symbol
f
F_stab
F_aging
T_use
Vdd
Idd
I_std
PR
VC_U
VC_L
Z_in
C_in
Lin
–
V_BW
Min.
Typ.
Max.
Unit
Condition
Frequency Range
80.000001
–
220 MHz
Frequency Stability and Aging
-10 – +10 ppm Inclusive of Initial tolerance[4] at 25°C, and variation over
-25 – +25 ppm temperature, rated supply voltage and load.
-50 – +50 ppm
-5 – +5 ppm 10 years, 25°C
-20 – +70 °C Extended Commercial
-40 – +85 °C Industrial
Supply Voltage and Current Consumption
1.71
1.8
1.89
V Additional supply voltages between 2.5V and 3.3V can be
2.25
2.5
2.75
V supported. Contact SiTime for additional information.
2.52
2.8
3.08
V
2.97
3.3
3.63
V
– 34 36 mA No load condition, f = 100 MHz, Vdd = 2.5V, 2.8V or 3.3V
– 30 33 mA No load condition, f = 100 MHz, Vdd = 1.8V
– – 70 A Vdd = 2.5V, 2.8V, 3.3V, ST = GND, output is Weakly Pulled Down
– – 10 A Vdd = 1.8V, ST = GND, output is Weakly Pulled Down
VCXO Characteristics
±25, ±50, ±100, ±150, ±200,
±400, ±800, ±1600
ppm See the Absolute Pull Range and APR table on page 8
1.7 –
– V Vdd = 1.8V, Voltage at which maximum deviation is guaranteed.
2.4 –
– V Vdd = 2.5V, Voltage at which maximum deviation is guaranteed.
2.7 –
– V Vdd = 2.8V, Voltage at which maximum deviation is guaranteed.
3.2 –
– V Vdd = 3.3V, Voltage at which maximum deviation is guaranteed.
– – 0.1 V Voltage at which minimum deviation is guaranteed.
100 –
– kΩ
– 5 – pF
– 0.1 1 %
Positive slope
–
– 8 – kHz Contact SiTime for 16 kHz and other high bandwidth options
SiTime Corporation
Rev. 1.0
990 Almanor Avenue, Sunnyvale, CA 94085
(408) 328-4400
www.sitime.com
Revised March 18, 2014
1 page SiT3809
80 MHz to 220 MHz MEMS VCXO
Timing Diagram
TThhee SSmmaarrtt TTiimmiinngg CChhooiiccee
80% Vdd, 2.5/2.8/3.3V devices Vdd
80% Vdd, 1.8V devices
Pin 4 Voltage
T_start
No Glitch
during start up
50% Vdd
ST Voltage
Vdd
T_resume
CLK Output
T_start: Time to start from power-off
Figure 7. Startup Timing (OE/ST Mode)
50% Vdd
OE Voltage
u
Vdd
T_oe
CLK Output
CLK Output
T_resume: Time to resume from ST
Figure 8. Standby Resume Timing (ST Mode Only)
Vdd
OE Voltage
CLK Output
50% Vdd
T_oe
HZ
T_oe: Time to re-enable the clock output
T_oe: Time to put the output in High Z mode
Figure 9. OE Enable Timing (OE Mode Only)
Figure 10. OE Disable Timing (OE Mode Only)
Notes:
13. SiT3809 supports “no runt” pulses and “no glitch” output during startup or resume.
14. SiT3809 supports gated output which is accurate within rated frequency stability from the first cycle.
Rev. 1.0
Page 5 of 9
www.sitime.com
5 Page TThhee SSmmaarrtt TTiimmiinngg CChhooiiccee
Silicon MEMS Outperforms Quartz
SiTime Corporation
990 Almanor Avenue, Sunnyvale, CA 94085
Silicon MEMS Outperforms Quartz Rev. 1.1
(408) 328-4400
www.sitime.com
Revised October 5, 2013
11 Page |
Páginas | Total 14 Páginas | |
PDF Descargar | [ Datasheet SiT3809.PDF ] |
Número de pieza | Descripción | Fabricantes |
SiT3809 | 80 MHz to 220 MHz MEMS VCXO | SiTime |
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