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840N051BGILF

Description
Clock Synthesizer / Jitter Cleaner FemtoClock NG Crystal-to-LVCMOS
Categorysemiconductor    Analog mixed-signal IC   
File Size236KB,14 Pages
ManufacturerIDT (Integrated Device Technology)
Environmental Compliance
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840N051BGILF Overview

Clock Synthesizer / Jitter Cleaner FemtoClock NG Crystal-to-LVCMOS

840N051BGILF Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerIDT (Integrated Device Technology)
Product CategoryClock Synthesizer / Jitter Cleaner
RoHSDetails
Package / CaseTSSOP-8
PackagingTube
Height1 mm
Length3.1 mm
Width4.4 mm
Factory Pack Quantity96
Unit Weight0.006737 oz
FemtoClock
®
NG Crystal-to-LVCMOS/LVTTL
Clock Synthesizer
General Description
The ICS840N051I is a LVCMOS/LVTTL clock synthesizer designed
for SDH/SONET and Ethernet applications. The device generates a
selectable 155.52MHz or 77.76MHz clock signal with excellent
phase jitter performance. The device uses IDT’s fourth generation
FemtoClock
®
NG technology for an optimum of high clock frequency,
low phase noise performance and low power consumption.The
device supports 2.5V or 3.3V voltage supply and is packaged in a
small, lead-free (RoHS 6) 8-lead TSSOP package. The extended
temperature range supports wireless infrastructure,
telecommunication and networking end equipment requirements.
ICS840N051I
DATASHEET
Features
Fourth generation FemtoClock
®
NG technology
155.52MHz output clock synthesized from a 19.44MHz
fundamental mode crystal
One 2.5V or 3.3V LVCMOS/LVTTL clock output
Crystal interface designed for a 12pF parallel resonant crystal
RMS phase jitter @ 155.52MHz, using a 19.44MHz crystal
(12kHz - 20MHz): 0.482ps (maximum)
RMS phase jitter @ 156.25MHz, using a 19.53125MHz crystal
(1.875MHz - 20MHz): 0.138ps (maximum)
LVCMOS interface levels for the control inputs
Full 2.5V or 3.3V supply voltage
Lead-free (RoHS 6) packaging
-40°C to 85°C ambient operating temperature
OE Function Table
Input
OE
0
1 (default)
Output Enable
Output Q is disabled in high-impedance state
Output Q is enabled.
NOTE: OE is an asynchronous control
FREQ_SEL Frequency Table
Input
FREQ_SEL
0 (default)
1
f
XTAL
= 19.2MHz
153.6MHz
76.8MHz
Output Frequency
f
XTAL
= 19.44MHz
155.52MHz
77.76MHz
f
XTAL
= 19.53125MHz
156.25MHz
78.125MHz
NOTE: FREQ_SEL is an asynchronous control.
Block Diagram
XTAL_IN
OSC
XTAL_OUT
PFD
&
LPF
FemtoClock
®
NG
VCO
490-637.5MHz
÷4,
÷8
Q
Pin Assignment
VDDA
OE
XTAL_OUT
XTAL_IN
1
2
3
8
7
6
5
VDD
Q
GND
FREQ_SEL
4
÷32
FREQ_SEL
OE
Pulldown
Pullup
ICS840N051I
8-lead TSSOP
4.40mm x 3.0mm x 0.925mm
package body
G Package
Top View
ICS840N051BGI REVISION A OCTOBER 14, 2013
1
©2013 Integrated Device Technology, Inc.

840N051BGILF Related Products

840N051BGILF 840N051BGILFT
Description Clock Synthesizer / Jitter Cleaner FemtoClock NG Crystal-to-LVCMOS Clock Synthesizer / Jitter Cleaner FemtoClock NG Crystal-to-LVCMOS
Product Attribute Attribute Value Attribute Value
Manufacturer IDT (Integrated Device Technology) IDT (Integrated Device Technology)
Product Category Clock Synthesizer / Jitter Cleaner Clock Synthesizer / Jitter Cleaner
RoHS Details Details
Package / Case TSSOP-8 TSSOP-8
Packaging Tube Reel
Height 1 mm 1 mm
Length 3.1 mm 3.1 mm
Width 4.4 mm 4.4 mm
Factory Pack Quantity 96 2500
Unit Weight 0.006737 oz 0.006737 oz
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