SI5346B-B-GMR Overview
It is packaged using the Tape & Reel (TR) method since it is a clock IC. Embedded in the 44-VFQFN Exposed Pad package is this Clock PLL. Frequency generator is capable of operating at a maximum temperature of 260 when reflowing. It contains a total of 44 terminations within RF synthesizer. This clock generator ic should receive a voltage of 1.8V. It is designed that the Clock PLL's input should be LVCMOS, LVDS, LVPECL, Crystal. A total of 1 circuits are implemented to access the full performance of the electrical part. Using this clock-based frequency synthesizer, you can achieve a maximum frequency of 350MHz. Because of the Surface Mount, clock PLL can be easily mounted on the panel. RF synthesizer is comprised of CLOCK GENERATOR, PROCESSOR SPECIFIC uPs, uCs, and peripheral ICs. As long as you provide 1.71V~3.47V supply voltage, it will work. Using the test statistics, we estimate that the ambient temperature should be -40°C~85°C. The RF synthesizer is compatible with CML, HCSL, LVCMOS, LVDS, LVPECL logic levels. A frequency synthesizer with ALSO REQUIRES 3.3V SUPPLY features better clock signal output. In some cases, over-current supply (higher than 230mA) may cause thermal damage to an element.
SI5346B-B-GMR Features
Available in the 44-VFQFN Exposed Pad
Supply voltage of 1.8V

SI5346B-B-GMR Applications
There are a lot of Silicon Labs
SI5346B-B-GMR Clock Generators applications.

1 Gigabit Ethernet
10 Gigabit Ethernet
FPGA and processor clocks
Line cards used in telephone exchange
Fiber Channel
PCI express cards
Infotainment systems
Medical equipment
Multi-function printers
Media broadcast servers

Factory Lead Time	4 Weeks
Mount	Surface Mount
Mounting Type	Surface Mount
Package / Case	44-VFQFN Exposed Pad
Operating Temperature	-40°C~85°C
Packaging	Tape & Reel (TR)
Published	1997
Part Status	Not For New Designs
Moisture Sensitivity Level (MSL)	2 (1 Year)
Number of Terminations	44
ECCN Code	EAR99
Additional Feature	ALSO REQUIRES 3.3V SUPPLY
Voltage - Supply	1.71V~3.47V
Terminal Position	QUAD
Terminal Form	NO LEAD
Peak Reflow Temperature (Cel)	260
Supply Voltage	1.8V
Terminal Pitch	0.5mm
Time@Peak Reflow Temperature-Max (s)	40
Output	CML, HCSL, LVCMOS, LVDS, LVPECL
JESD-30 Code	S-XQCC-N44
Qualification Status	Not Qualified
Number of Circuits	1
uPs/uCs/Peripheral ICs Type	CLOCK GENERATOR, PROCESSOR SPECIFIC
Supply Current-Max	230mA
Frequency (Max)	350MHz
Input	LVCMOS, LVDS, LVPECL, Crystal
Ratio - Input:Output	5:4
Primary Clock/Crystal Frequency-Nom	54MHz
PLL	Yes
Differential - Input:Output	Yes/Yes
Divider/Multiplier	Yes/No
Length	7mm
Height Seated (Max)	0.9mm
Width	7mm
RoHS Status	RoHS Compliant