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8N4QV01LG-1128CDI

Description
Programmable Oscillators
CategoryPassive components   
File Size329KB,20 Pages
ManufacturerIDT (Integrated Device Technology)
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8N4QV01LG-1128CDI Overview

Programmable Oscillators

8N4QV01LG-1128CDI Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerIDT (Integrated Device Technology)
Product CategoryProgrammable Oscillators
ProductVCXO
Quad-Frequency Programmable
VCXO
General Description
The IDT8N4QV01 is a Quad-Frequency Programmable VCXO with
very flexible frequency and pull-range programming capabilities. The
device uses IDT’s fourth generation FemtoClock® NG technology for
an optimum of high clock frequency and low phase noise
performance. The device accepts 2.5V or 3.3V supply and is
packaged in a small, lead-free (RoHS 6) 10-lead ceramic 5mm x
7mm x 1.55mm package.
Besides the 4 default power-up frequencies set by the FSEL0 and
FSEL1 pins, the IDT8N4QV01 can be programmed via the I
2
C
interface to any output clock frequency between 15.476MHz to
866.67MHz and from 975MHz to 1,300MHz to a very high degree of
precision with a frequency step size of 435.9Hz ÷N (N is the PLL
output divider). Since the FSEL0 and FSEL1 pins are mapped to 4
independent PLL, P, M and N divider registers (P, MINT, MFRAC and
N), reprogramming those registers to other frequencies under
control of FSEL0 and FSEL1 is supported. The extended
temperature range supports wireless infrastructure, tele-
communication and networking end equipment requirements.
IDT8N4QV01 REV G
DATASHEET
Features
Fourth generation FemtoClock® NG technology
Programmable clock output frequency from 15.476MHz to
866.67MHz and from 975MHz to 1,300MHz
Four power-up default frequencies (see part number order codes),
re-programmable by I
2
C
I
2
C programming interface for the output clock frequency, APR
and internal PLL control registers
Frequency programming resolution is 435.9Hz ÷N
Absolute pull-range (APR) programmable from ±4.5ppm to
±754.5ppm
One 2.5V or 3.3V LVDS differential clock output
Two control inputs for the power-up default frequency
LVCMOS/LVTTL compatible control inputs
RMS phase jitter @ 156.25MHz (12kHz - 20MHz): 0.494ps
(typical)
RMS phase jitter @ 156.25MHz (1kHz - 40MHz): 0.594ps (typical)
2.5V or 3.3V supply voltage modes
-40°C to 85°C ambient operating temperature
Lead-free (RoHS 6) packaging
Block Diagram
OSC
114.285 MHz
÷MINT,
MFRAC
2
VC
FSEL1
FSEL0
SCLK
SDATA
OE
Pulldown
Pulldown
Pullup
Pullup
Pullup
Pin Assignment
÷P
PFD
&
LPF
FemtoClock
®
NG
VCO
1950-2600MHz
÷N
Q
nQ
VC 1
OE 2
GND 3
FSEL0 4
FSEL1 5
10 SCLK
9 SDATA
8 V
DD
7 nQ
6 Q
A/D
7
25
Configuration Register (ROM)
(Frequency, APR, Polarity)
I
2
C Control
7
IDT8N4QV01 REV G DATA SHEET
10-lead ceramic 5mm x 7mm x 1.55mm
package body
CD Package
Top View
IDT8N4QV01GCD REVISION A MARCH 11, 2014
1
©2014 Integrated Device Technology, Inc.
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