MEMS DCXO
(LVDS/LVPECL)

SiTime’s digitally controlled MEMS oscillators (DCXO) enables users to tune output frequency by up to ±1600 ppm via a one-wire digital interface. This eliminates the need for an external DAC used in traditional VCXO designs. It also eliminates the frequency shift caused by board noise on the voltage control line.
• Widest pull range options, including ±25, ±50, ±100, ±150, ±200, ±400, ±800, or ±1600 ppm
• Pull range resolution of 1 ppb
• Any combination of frequencies (up to 625 MHz), voltage (1.8 V; 2.5 V to 3.3 V), pull range (±25 ppm to ±1600 ppm) and industry-standard packages (3225, 5032, or  7050)

SiTime’s digitally controlled MEMS oscillators (DCXO) enables users to tune output frequency by up to ±1600 ppm via a one-wire digital interface. This eliminates the need for an external DAC used in traditional VCXO designs. It also eliminates the frequency shift caused by board noise on the voltage control line.
• Widest pull range options, including ±25, ±50, ±100, ±150, ±200, ±400, ±800, or ±1600 ppm
• Pull range resolution of 1 ppb
• Any combination of frequencies (up to 625 MHz), voltage (1.8 V; 2.5 V to 3.3 V), pull range (±25 ppm to ±1600 ppm) and industry-standard packages (3225, 5032, or  7050)

Model Frequency (MHz) Size Pulling range (ppm)
SiT3921 1 / 220 3.2×2.5 , 5×3.2 , 7×5 ±1600
SiT3922 220 / 625 3.2×2.5 , 5×3.2 , 7×5 ±1600

 

Model Size Freq.(MHz)
SiT3921 3.2×2.5 , 5.0×3.2
7.0×5.0
1 / 220
SiT3922 220 / 625

Pulling range up to ±1600ppm