SiTime Corporation 990 Almanor Avenue Sunnyvale, CA 94085 (408) 328-4400 www.sitime.com
Rev. 1.46 Revised August 11, 2011
SiT8103
High Performance 1-110 MHz Oscillator
Note:
1. All electrical specifications in the above table are measured with 15pF output load, unless stated otherwise in the Condition. For more information about SoftEdge
TM
rise/fall time for driving higher output load or reducing EMI, download http://www.sitime.com/support2/documents/AN10022-rise-and-fall-time-rev1.1.pdf.
■ MEMS oscillator with LVCMOS/LVTTL compatible output
■ 1-110 MHz frequency range
■ Frequency stability as low as ±20 PPM
■ Typical current consumption of 6.1 mA in active mode
■ Standby or output enable modes
■ 1.8V, 2.5V - 3.3V supply voltage
■ SoftEdge
TM
configurable rise/fall time for driving higher loads or EMI reduction.
■ 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
■ Ultra short lead time
■ Ideal for consumer electronics: video, set top boxes, HDTV, DVR, scanners, printers, IP camera, etc.
■ Ideal for high-speed serial protocols: Ethernet, USB, SATA, SAS, Fibre Channel, Firewire, PCI Express
Electrical Characteristics
[1]
Parameter Symbol Min. Typ. Max. Unit Condition
Output Frequency Range f 1 – 110 MHz
Frequency Stability F_stab -20 – +20 PPM Inclusive of: Initial stability, operating temperature, rated power,
supply voltage change, load change, shock and vibration.
± 20 PPM available in extended commercial
temperature only
-25 – +25 PPM
-30 – +30 PPM
-50 – +50 PPM
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 1.71 1.8 1.89 V Any voltage between 2.5V and 3.3V is supported with 1 decimal
point resolution.
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 7.5 mA No load condition, f = 20 MHz, Vdd = 2.5 V, 2.8 V or 3.3 V
– 6.1 6.7 mA No load condition, f = 20 MHz, Vdd = 1.8 V
Standby Current I_std – 2.4 4.3 μAST = GND, Vdd = 3.3 V, Output is Weakly Pulled Down
–1.22.2μAST
= GND, Vdd = 2.5 or 2.8 V, Output is Weakly Pulled Down
–0.40.8μAST
= GND, Vdd = 1.8 V, Output is Weakly Pulled Down
Duty Cycle DC 45 50 55 % All Vdds. f <= 75 MHz
40 50 60 % All Vdds. f > 75 MHz
Rise/Fall Time Tr, Tf – 1 2 ns 15pF load, 20% - 80% Vdd=2.5V, 2.8V or 3.3V
– 1.3 2.5 ns 15pF load, 20% - 80% Vdd=1.8V
– 1.9 2.6 ns 30pF load, 20% - 80% Vdd=2.5V, 2.8V or 3.3V
– 2.3 3.3 ns 30pF load, 20% - 80% Vdd=1.8V
– 2.9 3.9 ns 45pF load, 20% - 80% Vdd=2.5V, 2.8V or 3.3V
– 3.4 4.6 ns 45pF load, 20% - 80% Vdd=1.8V
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)
IOH = -2 mA (Vdd = 1.8 V)
Output Voltage Low VOL – – 10% Vdd
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 4 ms Measured from the time ST pin crosses 50% threshold
RMS Period Jitter T_jitt – – 4.0 ps f = 75 MHz, Vdd = 2.5 V, 2.8 V or 3.3 V
– – 6.5 ps f = 75 MHz, Vdd = 1.8 V
RMS Phase Jitter (random) T_phj – 0.6 – ps f = 75 MHz @ BW: 900 kHz to 7.5 MHz, VDD = 2.5 V to 3.3 V
– 0.8 – ps f = 75 MHz @ BW: 900 kHz to 7.5 MHz, VDD = 1.8 V
■
Features, Benefits and Applications
