MAX9326 1:9 Differential LVPECL/LVECL/HSTL Clock and Data Driver

Description

The MAX9326 low-skew, 1:9 differential driver features extremely low output-to-output skew (50ps max) and part-to-part skew (225ps max). These features make the device ideal for clock and data distribution across a backplane or board. The device repeats an HSTL or LVECL/LVPECL differential input at nine differential outputs. Outputs are compatible with LVECL and LVPECL, and directly drive 50Ω terminated transmission lines.

The differential inputs can be configured to accept a single-ended signal when the unused complementary input is connected to the on-chip reference output voltage V_BB. All inputs have internal pulldown resistors to V_EE. The internal pulldowns and a fail-safe circuit ensure differential low default outputs when the inputs are left open or at V_EE.

The MAX9326 operates over a +2.375V to +3.8V supply range for interfacing to differential HSTL and LVPECL signals. This allows high-performance clock or data distribution in systems with a nominal +2.5V or +3.3V supply. For LVECL operation, the device operates with a -2.375V to -3.8V supply.

The MAX9326 is offered in 28-lead PLCC and space-saving 28-lead QFN packages. The MAX9326 is specified for operation from -40°C to +85°C.

Key Features

Applications/Uses

	50ps (max) Output-to-Output Skew
	1.5ps_RMS (max) Random Jitter
	Guaranteed 300mV Differential Output at 1.0GHz
	+2.375V to +3.8V Supplies for Differential HSTL/LVPECL
	-2.375V to -3.8V Supplies for Differential LVECL
	On-Chip Reference for Single-Ended Inputs
	Outputs Low for Inputs Open or at V_EE
	Pin Compatible with MC100LVE111

	Low-Jitter Data Repeater
	Precision Clock Distribution

Key Specifications: High-Speed Interconnect (Differential Signaling)

Part Number

Features

Signal Type

Functions

t_PD
(ps)

V_SUPPLY
(V)

max

MAX9326

Fail-Safe Inputs

HSTL

LVECL

LVPECL

LVECL

LVPECL

Fan-Out Buffer

650

3.3

See All High-Speed Interconnect (Differential Signaling) (132)

Diagram

Functional Diagram

Application Notes

Application Note 1752: Applying HSTL Signals to PECL Input Devices - MAX9326

Design Guides

Fiber (PDF)
Communications (PDF)

Reliability Reports

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Software/Models

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Ordering Information

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
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Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-3 of 3

MAX9326 Free
Sample Buy Status

Package: TYPE PINS FOOTPRINT

DRAWING CODE/VAR *

Temp RoHS/Lead-Free?
Materials Analysis

MAX9326ETI

Active

Land Pattern: Not Available

See data sheet

MAX9326EQI+T

Active

Land Pattern: Not Available

-40°C to +85°C See data sheet

MAX9326EQI+

Active PLCC;28 pin;158 mm²
Outline Drawing: 21-0049 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: Q28+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis

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Document Ref.: 19-2538; Rev 2; 2003-03-21
This page last modified: 2009-10-14