SI5344B-B-GMR Overview
As a clock IC, it uses the Tape & Reel (TR) package. 44-VFQFN Exposed Pad contains this Clock PLL. When reflowed, this frequency generator can withstand a maximum temperature of 260. As a result, frequency synthesizers can be found to contain 44 terminations. For this clock generator ic, a voltage of 1.8V is required. This Clock PLL will be fed by LVCMOS, LVDS, LVPECL, Crystal as its input. There are 1 circuits implemented in order to achieve full performance from this electronic part. Providing a maximum frequency of 350MHz, this clock-based RF synthesizer is suitable for a variety of applications. The Surface Mount allows this electrical component to be easily installed on the panel. This RF synthesizer has CLOCK GENERATOR, PROCESSOR SPECIFIC uPs, uCs, and peripheral ICs. There are 1.71V~3.47V different supply voltages that can be provided for this RF synthesizer. Based on test statistics, ambient temperature should be set at -40°C~85°C. I would like to present to you a frequency synthesizer that is compatible with CML, HCSL, LVCMOS, LVDS, LVPECL logic levels. In order to provide better clock signal output, this frequency synthesizer is equipped with ALSO REQUIRES 3.3V SUPPLY.
SI5344B-B-GMR Features
Available in the 44-VFQFN Exposed Pad
Supply voltage of 1.8V

SI5344B-B-GMR Applications
There are a lot of Silicon Labs
SI5344B-B-GMR Clock Generators applications.

Sampling clocks for ADC and DAC
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

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	2014
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
Number of Circuits	1
uPs/uCs/Peripheral ICs Type	CLOCK GENERATOR, PROCESSOR SPECIFIC
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