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843251BGI-12LFT

Description
TSSOP-8, Reel
CategoryMicrocontrollers and processors    The clock generator   
File Size475KB,17 Pages
ManufacturerIDT (Integrated Device Technology)
Environmental Compliance  
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843251BGI-12LFT Overview

TSSOP-8, Reel

843251BGI-12LFT Parametric

Parameter NameAttribute value
Brand NameIntegrated Device Technology
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerIDT (Integrated Device Technology)
Parts packaging codeTSSOP
package instructionTSSOP-8
Contacts8
Manufacturer packaging codePGG8
Reach Compliance Codecompliant
ECCN codeEAR99
Is SamacsysN
Other featuresALSO OPERATES AT 3.3V SUPPLY
JESD-30 codeR-PDSO-G8
JESD-609 codee3
length4.4 mm
Humidity sensitivity level1
Number of terminals8
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output clock frequency750 MHz
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSSOP8,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
power supply2.5/3.3 V
Master clock/crystal nominal frequency30 MHz
Certification statusNot Qualified
Maximum seat height1.2 mm
Maximum slew rate83 mA
Maximum supply voltage2.625 V
Minimum supply voltage2.375 V
Nominal supply voltage2.5 V
surface mountYES
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn) - annealed
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width3 mm
uPs/uCs/peripheral integrated circuit typeCLOCK GENERATOR, OTHER
Base Number Matches1
Femtoclock
®
Crystal-to-3.3V,
2.5V LVPECL Clock Generator
843251I-12
Data Sheet
G
ENERAL
D
ESCRIPTION
The 843251I-12 is a 10Gb Ethernet Clock Generator. The 843251I-
12 uses an 18pF parallel resonant crystal over the range of 23.2MHz
- 30MHz. For Ethernet applications, a 25MHz crystal is used.
The 843251I-12 uses IDT’s 3
rd
generation low phase noise VCO
technology, and can achieve <1ps rms phase jitter performance
over the 1.875MHz - 20MHz integration range. The 843251I-12 is
packaged in a small 8-pin TSSOP, making it ideal for use in systems
with limited board space.
F
EATURES
One Differential LVPECL output
Crystal oscillator interface, 18pF parallel resonant crystal
(23.2MHz - 30MHz)
Output frequency range: 290MHz - 750MHz
VCO range: 580MHz - 750MHz
RMS phase jitter @ 312.5MHz, using a 25MHz crystal
(1.875MHz - 20MHz): 0.36ps (typical)
3.3V or 2.5V operating supply
-40°C to 85°C ambient operating temperature
Available in lead-free (RoHS 6) package
C
OMMON
C
ONFIGURATION
T
ABLE
Inputs
Crystal Frequency
(MHz)
25
25
FREQ_SEL
1
0
M
25
25
N
1
2
Multiplication Value
M/N
25
12.5
Output Frequency
(MHz)
625
312.5
B
LOCK
D
IAGRAM
FREQ_SEL
Pulldown
P
IN
A
SSIGNMENT
V
CCA
V
EE
XTAL_OUT
XTAL_IN
1
2
3
4
8
7
6
5
V
CC
Q
nQ
FREQ_SEL
XTAL_IN
OSC
XTAL_OUT
Phase
Detector
VCO
580MHz - 750MHz
FREQ_SEL N
1
÷1
0
(default)
÷5
Q
nQ
843251I-12
8-Lead TSSOP
4.4mm x 3.0mm x 0.925mm package body
G Package
Top View
M = ÷25
(fixed)
©2016 Integrated Device Technology, Inc
1
Revision A January 19, 2016
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