Rainbow-electronics DS4266 Uživatelský manuál stáhnout pdf (Strana 1)

DS4266

DDR Clock Oscillator

________________________________________________________________

Maxim Integrated Products

Rev 0; 10/08

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

General Description

The DS4266 surface-mount ceramic crystal oscillator is

part of Maxim’s DS4-XO crystal oscillator product fami-

ly. The DS4266 is a 266MHz crystal oscillator designed

to support high-performance DDR memory applications

that require a stable, low-jitter, and tight duty-cycle

clock source. The device provides an overall accuracy

and stability better than ±50ppm, including aging. Jitter

performance is better than 0.7ps

RMS

typically over a

12kHz to 20MHz bandwidth, and duty-cycle perfor-

mance is better than 48%/52%.

The DS4266 has an output frequency of 266MHz, and it

supports LVDS and LVPECL output types. The DS4266

is constructed using a fundamental crystal in conjunc-

tion with high-performance silicon germanium PLL tech-

nology, enabling very low phase noise and phase jitter

performance. The device operates from a 3.3V ±5%

power supply and consumes a maximum current of

100mA.

The DS4266 is packaged in a miniature 5mm x 3.2mm

x 1.49mm, 10-lead LCCC ceramic package, making it

suitable for applications where board space is critical.

Applications

DDR Memory Clock Source

Features

♦ < 0.7ps

RMS

(typ) from 12kHz to 20MHz Jitter

♦ LVDS or LVPECL Output Types

♦ 3.3V Operating Voltage

♦ 5.0mm x 3.2mm x 1.49mm, 10-Pin LCCC Ceramic

Package

♦ -40°C to +85°C Operating Temperature Range

♦ Lead-Free/RoHS Compliant

DS4266

OUTP

OUTN

LVDS OPTION

GND

0.01μF

0.1μF

100Ω

DS4266

OUTP

OUTN

LVPECL OPTION

GND

0.01μF

0.1μF

50Ω

PECL_BIAS

- 2.0V

Typical Operating Circuits

Pin Configuration and Selector Guide appear at end of

data sheet.

Denotes a lead-free/RoHS-compliant package. The lead finish

is JESD97 category e4 (Au over Ni) and is compatible with both

lead-based and lead-free soldering processes.

Ordering Information

PART TEMP RANGE PIN-PACKAGE

DS4266D+ -40°C to +85°C 10 LCCC

DS4266P+ -40°C to +85°C 10 LCCC

1 2 3 4 5 6

DDR Clock Oscillator 1

Shrnutí obsahu

Strany 1 - DDR Clock Oscillator

DS4266DDR Clock Oscillator________________________________________________________________Maxim Integrated Products1Rev 0; 10/08For pricing, delivery,

Strany 2

DS4266DDR Clock Oscillator2 _______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSELECTRICAL

Strany 3

DS4266DDR Clock Oscillator_______________________________________________________________________________________ 3ELECTRICAL CHARACTERISTICS (continu

Strany 4

DS4266DDR Clock Oscillator4 _______________________________________________________________________________________Pin DescriptionSINGLE-SIDEBAND PHAS

Strany 5

DS4266DDR Clock Oscillator_______________________________________________________________________________________ 5Detailed DescriptionThe DS4266 cons

Strany 6

DS4266DDR Clock OscillatorMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No ci

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