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843021AGLFT

Description
IC CLK GENERATOR LVPECL 8-TSSOP
Categorysemiconductor    Analog mixed-signal IC   
File Size270KB,15 Pages
ManufacturerIDT (Integrated Device Technology, Inc.)
Websitehttp://www.idt.com/
Environmental Compliance
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843021AGLFT Overview

IC CLK GENERATOR LVPECL 8-TSSOP

843021AGLFT Parametric

Parameter NameAttribute value
PLLyes
The main purposeEthernet
entercrystal
outputLVPECL
Number of circuits1
Ratio - Input:Output1:1
Differential - Input:OutputNo/Yes
Frequency - maximum140MHz
Voltage - Power2.97 V ~ 3.63 V
Operating temperature0°C ~ 70°C
Installation typesurface mount
Package/casing8-TSSOP (0.173", 4.40mm wide)
Supplier device packaging8-TSSOP
FemtoClock
®
Crystal-to-3.3V LVPECL
Clock Generator
843021
DATA SHEET
General Description
The 843021 is a Gigabit Ethernet Clock Generator. The ICS84302
uses a 25MHz crystal to synthesize 125MHz. The 843021has
excellent phase jitter performance, over the 1.875MHz – 20MHz
integration range. The 843021is packaged in a small 8-pin TSSOP,
making it ideal for use in systems with limited board space.
Features
One differential 3.3V LVPECL output
Crystal oscillator interface designed for 22.4MHz – 28MHz, 18pF
parallel resonant crystal
Output frequency range: 112MHz – 140MHz
VCO range: 560MHz – 700MHz
Output duty cycle range: 49% – 51%
RMS phase jitter at 125MHz, using a 25MHz crystal
(1.875MHz – 20MHz): 0.650ps (typical)
Offset
Noise Power
100Hz ..............-94.2 dBc/Hz
1kHz ..............-122.8 dBc/Hz
10kHz ..............-132.2 dBc/Hz
100kHz ..............-131.3 dBc/Hz
Full 3.3V supply mode
0°C to 70°C ambient operating temperature
Available in lead-free (RoHS 6) package
Industrial temperature information available upon request
Table 1. Frequency Table - Typical Applications
Inputs
Crystal Frequency (MHz)
25
26.6
Output Frequency Range (MHz)
125
133
Block Diagram
25MHz
Pin Assignment
Phase
Detector
VCO
÷5
Q0
nQ0
V
CCA
V
EE
XTAL_OUT
XTAL_IN
1
2
3
4
8
7
6
5
V
CC
Q0
nQ0
nc
XTAL_IN
OSC
XTAL_OUT
÷25
(fixed)
843021
8 Lead TSSOP
4.40mm x 3.0mm x 0.925 package body
G Package
Top View
843021 REVISION D 9/25/15
1
©2015 Integrated Device Technology, Inc.

843021AGLFT Related Products

843021AGLFT 843021AG-01T 843021AG-01
Description IC CLK GENERATOR LVPECL 8-TSSOP IC synthesizer lvpecl 8tssop IC synthesizer lvpecl 8tssop
PLL yes Yes Yes
Standard Package - 2,500 96
Category - Integrated Circuits (ICs) Integrated Circuits (ICs)
Family - Clock/Timing - Application Specific Clock/Timing - Application Specific
Packaging - Tape & Reel (TR) Tube
Main Purpose - Etherne Etherne
Inpu - Crystal Crystal
Outpu - LVPECL LVPECL
Number of Circuits - 1 1
Ratio - Inpu - Outpu Outpu
Differential - Inpu - Outpu Outpu
Frequency - Max - 125MHz 125MHz
Voltage - Supply - 2.375 V ~ 3.465 V 2.375 V ~ 3.465 V
Operating Temperature - 0°C ~ 70°C 0°C ~ 70°C
Mounting Type - Surface Mou Surface Mou
Package / Case - 8-TSSOP (0.173", 4.40mm Width) 8-TSSOP (0.173", 4.40mm Width)
Supplier Device Package - 8-TSSOP 8-TSSOP
Other Names - ICS843021AG-01TICS843021AG-01T-ND ICS843021AG-01ICS843021AG-01-ND
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