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SIT5346AC-FF133JFB19.123456T

Description
LVCMOS Output Clock Oscillator, 19.123456MHz Nom, QFN-10
CategoryPassive components    oscillator   
File Size2MB,39 Pages
ManufacturerSiTime
Environmental Compliance
Download Datasheet Parametric View All

SIT5346AC-FF133JFB19.123456T Overview

LVCMOS Output Clock Oscillator, 19.123456MHz Nom, QFN-10

SIT5346AC-FF133JFB19.123456T Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerSiTime
package instructionLCC10,.13X.2,58/52/48
Reach Compliance Codecompliant
Ageing0.23 PPM/FIRST YEAR
maximum descent time1.9 ns
Frequency Adjustment - MechanicalNO
frequency stability0.2%
Installation featuresSURFACE MOUNT
Number of terminals10
Nominal operating frequency19.123456 MHz
Maximum operating temperature70 °C
Minimum operating temperature-20 °C
Oscillator typeLVCMOS
Output load15 pF
Package body materialCERAMIC
Encapsulate equivalent codeLCC10,.13X.2,58/52/48
physical size5.15mm x 3.35mm x 1.06mm
longest rise time1.9 ns
Maximum slew rate53 mA
Maximum supply voltage3.63 V
Minimum supply voltage2.97 V
Nominal supply voltage3.3 V
surface mountYES
maximum symmetry55/45 %
SiT5346
PRELIMINARY
1 – 60 MHz, ±0.1 to ±0.25 ppm, Endura™ Series Precision Super-TCXO
Description
The
SiT5346
is a ruggedized ±100 ppb precision MEMS
Features
Super-TCXO with a maximum acceleration sensitivity of
0.009 ppb/g or 0.1 ppb/g. Fully compliant to Telcordia GR-
1244-CORE Stratum 3 oscillator specifications, and
engineered for best dynamic performance, the SiT5346 is
ideal for high reliability defense, space, avionics, guidance,
precision GNSS and communications applications.
Leveraging SiTime’s unique DualMEMS™ temperature
sensing and TurboCompensation™ technologies, the
SiT5346 delivers the best dynamic performance for timing
stability in the presence of environmental stressors due to
air flow, temperature perturbation, vibration, shock, and
electromagnetic interference. This device also integrates
multiple on-chip regulators to filter power supply noise,
eliminating the need for a dedicated external LDO.
The SiT5346 offers three device configurations that can be
ordered using
Ordering Codes
for:
1) TCXO with non-pullable output frequency,
2) VCTCXO allowing voltage control of output
frequency, and
3) DCTCXO, enabling digital control of output frequency
using an I
2
C interface, pullable to 5 ppt (parts per
trillion) resolution.
The SiT5346 can be factory programmed for any
combination of frequency, stability, voltage, 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.
Refer to
Manufacturing Guideline
for proper reflow profile
and PCB cleaning recommendations for best performance.
Any frequency from 1 MHz to 60 MHz in 1 Hz steps
Factory programmable options for low lead time
Best dynamic stability under airflow, thermal shock
0.009 ppb/g or 0.1 ppb/g acceleration sensitivity
±100 ppb stability across temperature
±1 ppb/C typical frequency slope (ΔF/ΔT)
3e-11 ADEV at 10 second averaging time
-40°C to +105°C operating temperature
No activity dips or micro jumps
Resistant to shock, vibration and board bending
On-chip regulators eliminate the need for external LDOs
Digital frequency pulling (DCTCXO) via I
2
C
Digital control of output frequency and pull range
Up to
±3200
ppm pull range
Frequency pull resolution down to 5 ppt
2.5V, 2.8V, 3.0V and 3.3V supply voltage
LVCMOS or clipped sinewave output
RoHS and REACH compliant
Pb-free, Halogen-free, Antimony-free
Contact SiTime
for up-screening and LAT programs
Applications
Ballistics, missiles, munitions
Military portable radios
Ruggedized communications networks
Precision GNSS systems
SATCOM
Transponders
Military, defense, space, avionics systems
Block Diagram
5.0 x 3.2 mm
2
Package Pinout
SDA / NC
OE / VC / NC
SCL / NC
NC
GND
1
10
9
VDD
NC
NC
CLK
2
3
8
7
4
5
6
A0 / NC
Figure 1. SiT5346 Block Diagram
Figure 2. Pin Assignments (Top view)
(Refer to
Table 13
for Pin Descriptions)
Rev 0.54
July 22, 2019
www.sitime.com
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