Rainbow Electronics DS4266 User Manual

Ds4266 ddr clock oscillator, General description, Applications

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DS4266

DDR Clock Oscillator

________________________________________________________________

Maxim Integrated Products

1

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

V

CC

OUTP

OUTN

LVDS OPTION

OE

GND

0.01

μF

0.1

μF

100

Ω

DS4266

V

CC

OUTP

OUTN

LVPECL OPTION

OE

GND

0.01

μF

0.1

μF

50

Ω

50

Ω

PECL_BIAS
V

CC

- 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

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