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SIT5157AE-FD-25N0-220.000000T

Description
TCXO, CLOCK, 220 MHz, LVCMOS OUTPUT, CQFN-10
CategoryPassive components    oscillator   
File Size1MB,32 Pages
ManufacturerSiTime
Download Datasheet Parametric View All

SIT5157AE-FD-25N0-220.000000T Overview

TCXO, CLOCK, 220 MHz, LVCMOS OUTPUT, CQFN-10

SIT5157AE-FD-25N0-220.000000T Parametric

Parameter NameAttribute value
package instructionCQFN-10
Reach Compliance Codecompli
Other featuresTR
Ageing1 PPM/FIRST YEAR
maximum descent time1.9 ns
Frequency Adjustment - MechanicalNO
frequency stability2.5%
Installation featuresSURFACE MOUNT
Nominal operating frequency220 MHz
Maximum operating temperature105 °C
Minimum operating temperature-40 °C
Oscillator typeLVCMOS
Output load15 pF
physical size5.15mm x 3.35mm x 1.06mm
longest rise time1.9 ns
Maximum supply voltage2.75 V
Minimum supply voltage2.25 V
Nominal supply voltage2.5 V
surface mountYES
maximum symmetry58/42 %
Base Number Matches1
SiT5157
60 MHz to 220 MHz, ±0.5 to ±2.5 ppm, Elite Platform™ Super-TCXO
Description
The
SiT5157
is a ±0.5 to ±2.5 ppm MEMS Super-TCXO
Features
that is engineered for best dynamic performance. It is ideal
for high reliability telecom, wireless and networking,
industrial, precision GNSS and audio/video applications.
Leveraging SiTime’s unique DualMEMS™ temperature
sensing and TurboCompensation™ technologies, the
SiT5157 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 SiT5157 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
2
using an I C interface, pullable to 5 ppt (parts per
trillion) resolution.
The SiT5157 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 to ensure best
performance.
Output 60–189 MHz, and 200–220 MHz, in 1 Hz steps
Factory programmable options for low lead time
Best dynamic stability under airflow, thermal shock
±0.5 ppm stability across temperature
±15 ppb/C typical frequency slope (ΔF/ΔT)
-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
2
Digital frequency pulling (DCTCXO) via I 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 output
RoHS and REACH compliant
Pb-free, Halogen-free, Antimony-free
Applications
Precision GNSS systems
Microwave backhaul
Network routers and switches
Professional audio and video equipment
Storage and servers
Test and measurement
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. SiT5157 Block Diagram
Figure 2. Pin Assignments (Top view)
(Refer to
Table 11
for Pin Descriptions)
Rev 1.02
August 2, 2018
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