IDT2305A-1DCI8

IDT2305A-1DCI8 Datasheet

IDT2305A 3.3V ZERO DELAY CLOCK BUFFER

Part	Datasheet
IDT2305A-1DCI8	IDT2305A-1DCI8 (pdf)

Related Parts	Information
IDT2305A-1HDC	IDT2305A-1HDC
IDT2305A-1HDC8	IDT2305A-1HDC8
IDT2305A-1DCI	IDT2305A-1DCI
IDT2305A-1DC8	IDT2305A-1DC8
IDT2305A-1DC	IDT2305A-1DC
IDT2305A-1HDCI8	IDT2305A-1HDCI8
IDT2305A-1HDCI	IDT2305A-1HDCI

PDF Datasheet Preview
IDT2305A 3.3V ZERO DELAY CLOCK BUFFER COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES 3.3V ZERO DELAY CLOCK BUFFER IDT2305A FEATURES: • Phase-Lock Loop Clock Distribution • 10MHz to 133MHz operating frequency • Distributes one clock input to one bank of five outputs • Zero Input-Output Delay • Output Skew < 250ps • Low jitter <200 ps cycle-to-cycle • IDT2305A-1 for Standard Drive • IDT2305A-1H for High Drive • No external RC network required • Operates at 3.3V VDD • Power down mode • Available in SOIC package FUNCTIONAL BLOCK DIAGRAM DESCRIPTION: The IDT2305A is a high-speed phase-lock loop PLL clock buffer, designed to address high-speed clock distribution applications. The zero delay is achieved by aligning the phase between the incoming clock and the output clock, operable within the range of 10 to 133MHz. The IDT2305A is an 8-pin version of the IDT2309A. IDT2305A accepts one reference input, and drives out five low skew clocks. The -1H version of this device operates up to 133MHz frequency and has a higher drive than the -1 device. All parts have on-chip PLLs which lock to an input clock on the REF pin. The PLL feedback is on-chip and is obtained from the CLKOUT pad. In the absence of an input clock, the IDT2305A enters power down. In this mode, the device will draw less than 12µA for Commercial Tempera- ture range and less than 25µA for Industrial temperature range, the outputs are tri-stated, and the PLL is not running, resulting in a significant reduction of power. The IDT2305A is characterized for both Industrial and Commercial operation. REF 1 PLL Control Logic 8 CLKOUT 3 CLK1 2 CLK2 5 CLK3 7 CLK4 The IDT logo is a registered trademark of Integrated Device Technology, Inc. COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES 1 c 2004 Integrated Device Technology, Inc. JULY 2004 DSC 6586/4 IDT2305A 3.3V ZERO DELAY CLOCK BUFFER PIN CONFIGURATION CLK2 CLK1 SOIC TOP VIEW APPLICATIONS: • SDRAM • Telecom • Datacom • PC Motherboards/Workstations • Critical Path Delay Designs CLKOUT CLK4 VDD CLK3 COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES ABSOLUTE MAXIMUM RATINGS 1 Rating Max. Unit VDD VI 2 VI IIK VI < 0 IO VO = 0 to VDD or GND TA = 55°C in still air 3 TSTG Operating Temperature Operating ORDERING INFORMATION Device Type Package Process COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES Blank I DC DCG Commercial 0oC to +70oC Industrial -40oC to +85oC Small Outline IC SOIC - Green 2305A-1 Zero Delay Clock Buffer with High Drive 2305A-1H 2305A-1DC 2305A-1DCG 2305A-1DCGI 2305A-1DCI 2305A-1HDC 2305A-1HDCG 2305A-1HDCGI 2305A-1HDCI Ordering Code 8-Pin SOIC 8-Pin SOIC 8-Pin SOIC 8-Pin SOIC 8-Pin SOIC 8-Pin SOIC 8-Pin SOIC 8-Pin SOIC Package Type Commercial Industrial Commercial Industrial Operating Range CORPORATE HEADQUARTERS 6024 Silver Creek Valley Road San Jose, CA 95138 for SALES 800-345-7015 or 408-284-8200 fax 408-284-2775 for Tech Support:

PDF Datasheet Preview

IDT2305A 3.3V ZERO DELAY CLOCK BUFFER

COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
3.3V ZERO DELAY CLOCK BUFFER

IDT2305A

FEATURES:
• Phase-Lock Loop Clock Distribution
• 10MHz to 133MHz operating frequency
• Distributes one clock input to one bank of five outputs
• Zero Input-Output Delay
• Output Skew < 250ps
• Low jitter <200 ps cycle-to-cycle
• IDT2305A-1 for Standard Drive
• IDT2305A-1H for High Drive
• No external RC network required
• Operates at 3.3V VDD
• Power down mode
• Available in SOIC package

FUNCTIONAL BLOCK DIAGRAM

DESCRIPTION:

The IDT2305A is a high-speed phase-lock loop PLL clock buffer, designed to address high-speed clock distribution applications. The zero delay is achieved by aligning the phase between the incoming clock and the output clock, operable within the range of 10 to 133MHz.

The IDT2305A is an 8-pin version of the IDT2309A. IDT2305A accepts one reference input, and drives out five low skew clocks. The -1H version of this device operates up to 133MHz frequency and has a higher drive than the -1 device. All parts have on-chip PLLs which lock to an input clock on the REF pin. The PLL feedback is on-chip and is obtained from the CLKOUT pad. In the absence of an input clock, the IDT2305A enters power down.

In this mode, the device will draw less than 12µA for Commercial Tempera-
ture range and less than 25µA for Industrial temperature range, the outputs are tri-stated, and the PLL is not running, resulting in a significant reduction of power.

The IDT2305A is characterized for both Industrial and Commercial
operation.

REF 1

PLL Control

Logic
8 CLKOUT
3 CLK1
2 CLK2
5 CLK3
7 CLK4

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES 1
c 2004 Integrated Device Technology, Inc.

JULY 2004

DSC 6586/4

IDT2305A 3.3V ZERO DELAY CLOCK BUFFER

PIN CONFIGURATION

CLK2

CLK1

SOIC TOP VIEW

APPLICATIONS:
• SDRAM
• Telecom
• Datacom
• PC Motherboards/Workstations
• Critical Path Delay Designs

CLKOUT CLK4 VDD CLK3

COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES

ABSOLUTE MAXIMUM RATINGS 1

Rating

Max. Unit

VDD VI 2 VI

IIK VI < 0 IO VO = 0 to VDD or GND TA = 55°C in still air 3 TSTG Operating Temperature Operating
ORDERING INFORMATION

Device Type Package Process

COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES

Blank I

DC DCG

Commercial 0oC to +70oC Industrial -40oC to +85oC

Small Outline IC SOIC - Green
2305A-1 Zero Delay Clock Buffer with High Drive 2305A-1H
2305A-1DC 2305A-1DCG 2305A-1DCGI 2305A-1DCI 2305A-1HDC 2305A-1HDCG 2305A-1HDCGI 2305A-1HDCI
Ordering Code
8-Pin SOIC 8-Pin SOIC 8-Pin SOIC 8-Pin SOIC 8-Pin SOIC 8-Pin SOIC 8-Pin SOIC 8-Pin SOIC

Package Type

Commercial Industrial Commercial Industrial

Operating Range

CORPORATE HEADQUARTERS 6024 Silver Creek Valley Road San Jose, CA 95138
for SALES 800-345-7015 or 408-284-8200 fax 408-284-2775
for Tech Support:

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived IDT2305A-1DCI8 Datasheet file may be downloaded here without warranties.

Datasheet ID: IDT2305A-1DCI8 637244