844004AKI-104LF datasheet, PDF

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844004AKI-104LF: DescriptionVFQFPN-32, Tray; CategoryMicrocontrollers and processors The clock generator; File Size566KB，19 Pages; ManufacturerIDT (Integrated Device Technology); Environmental Compliance

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844004AKI-104LF Overview

VFQFPN-32, Tray

844004AKI-104LF Parametric

Parameter Name	Attribute value
Brand Name	Integrated Device Technology
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	IDT (Integrated Device Technology)
Parts packaging code	VFQFPN
package instruction	HVQCCN, LCC32,.2SQ,20
Contacts	32
Manufacturer packaging code	NLG32P1
Reach Compliance Code	compliant
ECCN code	EAR99
Is Samacsys	N
Other features	CAN ALSO OPERATES AT 3.3 V SUPPLY
JESD-30 code	S-XQCC-N32
JESD-609 code	e3
length	5 mm
Humidity sensitivity level	3
Number of terminals	32
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Maximum output clock frequency	226.66 MHz
Package body material	UNSPECIFIED
encapsulated code	HVQCCN
Encapsulate equivalent code	LCC32,.2SQ,20
Package shape	SQUARE
Package form	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	260
power supply	2.5/3.3 V
Master clock/crystal nominal frequency	26.5625 MHz
Certification status	Not Qualified
Maximum seat height	1 mm
Maximum slew rate	105 mA
Maximum supply voltage	2.625 V
Minimum supply voltage	2.375 V
Nominal supply voltage	2.5 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	Matte Tin (Sn) - annealed
Terminal form	NO LEAD
Terminal pitch	0.5 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED
width	5 mm
uPs/uCs/peripheral integrated circuit type	CLOCK GENERATOR, OTHER
Base Number Matches	1

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FemtoClock® Crystal-to-LVDS Frequency

Synthesizer

844004I-104

DATA SHEET

General Description

The 844004I-104 is a 4 output LVDS Synthesizer optimized to

generate Fibre Channel reference clock frequencies. Using a

26.5625MHz 18pF parallel resonant crystal, the following

frequencies can be generated based on the two frequency select

pins (F_SEL[1:0]): 212.5MHz, 187.5MHz, 159.375MHz, 106.25MHz

and 53.125MHz. The 844004I-104 uses IDT’s 3

generation low

phase noise VCO technology and can achieve <1ps typical rms

phase jitter, easily meeting Fibre Channel jitter requirements. The

844004I-104 is packaged in a 32-pin VFQFN package.

Features

•

Four differential LVDS outputs

Selectable crystal oscillator interface or LVCMOS/LVTTL

single-ended input

Supports the following output frequencies: 212.5MHz, 187.5MHz,

159.375MHz, 106.25MHz and 53.125MHz

VCO range: 560MHz - 680MHz

RMS phase jitter at 212.5MHz (637kHz – 10MHz), using a

26.5625MHz crystal: <1ps (typical)

Full 3.3V or 2.5V output supply modes

-40°C to 85°C ambient operating temperature

Available in lead-free (RoHS 6) packages

Frequency Table

Inputs

Input

Frequency

(MHz)

26.5625

23.4375

F_SEL1

F_SEL0

M/N

Output

Divider Divider Divider Frequency

Value

(MHz)

212.5

(default)

159.375

106.25

53.125

187.5

(default)

nQ0

nPLL_SEL

DDA

Pin Assignment

DDO

nQ1

32 31 30 29 28 27 26 25

nQ3

GND

nXTAL_SEL

REF_CLK

GND

ICS844004I-104

32 Lead VFQFN

5mm x 5mm x 0.925mm

package body

K Package

Top View

10 11 12 13 14 15 16

XTAL_IN

F_SEL0

F_SEL1

XTAL_OUT

DDO

nQ2

Block Diagram

F_SEL[1:0]

nPLL_SEL

Pulldown

REF_CLK

Pulldown

26.5625MHz

XTAL_IN

OSC

XTAL_OUT

nXTAL_SEL

Pulldown

Phase

Detector

VCO

637.5MHz

(w/26.5625MHz

Reference)

F_SEL[1:0]

0 0 ÷3

0 1 ÷4

1 0 ÷6

1 1 ÷12

nQ0

nQ1

nQ2

M = 24 (fixed)

nQ3

Pulldown

844004I-104 Rev A 6/11/15

844004AKI-104LF Related Products

	844004AKI-104LF	844004AKI-104LFT
Description	VFQFPN-32, Tray	VFQFPN-32, Reel
Brand Name	Integrated Device Technology	Integrated Device Technology
Is it lead-free?	Lead free	Lead free
Is it Rohs certified?	conform to	conform to
Maker	IDT (Integrated Device Technology)	IDT (Integrated Device Technology)
Parts packaging code	VFQFPN	VFQFPN
package instruction	HVQCCN, LCC32,.2SQ,20	HVQCCN, LCC32,.2SQ,20
Contacts	32	32
Manufacturer packaging code	NLG32P1	NLG32P1
Reach Compliance Code	compliant	compliant
ECCN code	EAR99	EAR99
Is Samacsys	N	N
Other features	CAN ALSO OPERATES AT 3.3 V SUPPLY	CAN ALSO OPERATES AT 3.3 V SUPPLY
JESD-30 code	S-XQCC-N32	S-XQCC-N32
JESD-609 code	e3	e3
length	5 mm	5 mm
Humidity sensitivity level	3	3
Number of terminals	32	32
Maximum operating temperature	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C
Maximum output clock frequency	226.66 MHz	226.66 MHz
Package body material	UNSPECIFIED	UNSPECIFIED
encapsulated code	HVQCCN	HVQCCN
Encapsulate equivalent code	LCC32,.2SQ,20	LCC32,.2SQ,20
Package shape	SQUARE	SQUARE
Package form	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	260	260
power supply	2.5/3.3 V	2.5/3.3 V
Master clock/crystal nominal frequency	26.5625 MHz	26.5625 MHz
Certification status	Not Qualified	Not Qualified
Maximum seat height	1 mm	1 mm
Maximum slew rate	105 mA	105 mA
Maximum supply voltage	2.625 V	2.625 V
Minimum supply voltage	2.375 V	2.375 V
Nominal supply voltage	2.5 V	2.5 V
surface mount	YES	YES
technology	CMOS	CMOS
Temperature level	INDUSTRIAL	INDUSTRIAL
Terminal surface	Matte Tin (Sn) - annealed	Matte Tin (Sn) - annealed
Terminal form	NO LEAD	NO LEAD
Terminal pitch	0.5 mm	0.5 mm
Terminal location	QUAD	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED	NOT SPECIFIED
width	5 mm	5 mm
uPs/uCs/peripheral integrated circuit type	CLOCK GENERATOR, OTHER	CLOCK GENERATOR, OTHER
Base Number Matches	1	1

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