SiT3372
1 MHz to 220 MHz Ultra-low Jitter Differential VCXO
Description
The SiT3372 is a 1 MHz to 220 MHz differential MEMS
VCXO engineered for low-jitter applications. Utilizing
SiTime’s unique DualMEMS
®
temperature sensing and
TurboCompensation
®
technology, the SiT3372 delivers
exceptional dynamic performance by providing
resistance to airflow, thermal gradients, shock and
vibration. This device also integrates multiple on-chip
regulators to filter power supply noise, eliminating the
need for a dedicated external LDO.
The SiT3372 can be factory programmed for any
combination of frequency, stability, voltage, output
signaling, and pull range. Programmability enables
designers to optimize clock configurations while
eliminating long lead times and customization costs
associated with quartz devices where each frequency is
custom built.
The wide frequency range and programmability makes
this device ideal for telecom, networking, and industrial
applications that require a variety of pullable frequencies
and operate in noisy environments.
Refer to Manufacturing Notes for proper reflow profile,
tape and reel dimension, and other manufacturing
related information.
Features
◼ Any frequency between 1 MHz and 220 MHz accurate
to 6 decimal places
(For frequencies 220.000001 MHz to 725 MHz, refer
to SiT3373)
◼ Widest pull range options: ±25, ±50, ±80, ±100, ±150,
±200, ±400, ±800, ±1600, ±3200 ppm
◼ 0.225 ps RMS phase jitter (typ) over 12 kHz to 20 MHz
bandwidth
◼ Frequency stability as low as ±15 ppm
◼ Wide temperature range support from -40°C to 105°C
◼ Industry-standard packages: 7.0 x 5.0 mm,
5.0 x 3.2 mm, 3.2 x 2.5 mm packages
Applications
◼ Cable Modem Termination System (CMTS), Video,
Broadcasting System, Audio, Industrial Sensors,
Remote Radio Head (RRH)
◼ SATA, SAS, 10/40/100/400 Gbps Ethernet, Fibre Channel,
PCI-Express
Block Diagram
Figure 1. SiT3372 Block Diagram
3.2 x 2.5 mm Package Pinout
43
1 6
GND
VDD
OUT+
52
NC OUT-
VIN
Figure 2. Pin Assignments (Top view)
(Refer to Table 6 for Pin Descriptions)
