IDT8V44N003I Datasheet, PDF (1/28 Pages) Integrated Device Technology – Buffered copy of input reference clock at LVDS output levels

FemtoClock^® NG LVDS Clock Synthesizer
IDT8V44N003I
DATA SHEET
General Description
The IDT8V44N003I is a programmable LVDS synthesizer designed
for applications requiring frequency conversion from a differential or
single-end reference source. The device is designed to provide opti-
mum performance of low phase noise and high power supply noise
rejection over a wide range of output frequencies. Oscillator level
phase noise performance is achieved through the use of IDT’s
Fourth Generation FemtoClock^®NG PLL technology. Default output
frequency settings are factory programmable via a one time pro-
grammable ROM while the I²C interface can be used to program the
output frequency after power up. A buffered copy of the input refer-
ence clock is provided at both LVDS output levels for applications
requiring efficient board space utilization.
Features
• Fourth generation FemtoClock® (NG) technology
• Reference clock input accepts differential HCSL, LVDS, LVPECL
or single-ended sine wave or LVCMOS input levels
• Input frequency range of 20MHz to 500MHz
• Output frequency range of 50MHz to 1.2GHz
• Buffered copy of input reference clock at LVDS output levels
• PLL lock indicator
• Full 3.3V output supply mode
• -40°C to 85°C ambient operating temperature
• Available in lead-free (RoHS 6) package
IDT8V44N003NLGI REVISION A APRIL 24, 2012
Pin Assignment
VDDA
nc
VDD
nc
SDATA
GND
nc
SCLK
24 23 22 21 20 19 18 17
25
16
26
15
27
14
28
13
29
12
30
11
31
10
32
9
1 23 45 6 78
REF_CLKOUT
nREF_CLKOUT
LOCK
REF_CLKIN
nREF_CLKIN
nc
GND
nc
IDT8V44N003I
32 Lead VFQFN
5mm x 5mm x 0.925mm Package Body
NL Package
Top View
1
©2012 Integrated Device Technology, Inc.