max9394eti-t Maxim Integrated Products, Inc., max9394eti-t Datasheet

max9394eti-t

Manufacturer Part Number

max9394eti-t

Description

2 1 Multiplexers And 1 2 Demultiplexers With Loopback

Manufacturer

Maxim Integrated Products, Inc.

Datasheet

1.MAX9394ETI-T.pdf (14 pages)

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The MAX9394/MAX9395 consist of a 2:1 multiplexer

and a 1:2 demultiplexer with loopback. The multiplexer

section (channel B) accepts two low-voltage differential

signaling (LVDS) inputs and generates a single LVDS

output. The demultiplexer section (channel A) accepts

a single LVDS input and generates two parallel LVDS

outputs. The MAX9394/MAX9395 feature a loopback

mode that connects the input of channel A to the output

of channel B and connects the selected input of chan-

nel B to the outputs of channel A.

Three LVCMOS/LVTTL logic inputs control the internal

connections between inputs and outputs, one for the

multiplexer portion of channel B (BSEL), and the other

two for loopback control of channels A and B (LB_SELA

and LB_SELB). Independent enable inputs for each dif-

ferential output pair provide additional flexibility.

Fail-safe circuitry forces the outputs to a differential low

condition for undriven inputs or when the common-

mode voltage exceeds the specified range. The

MAX9394 provides high-level input fail-safe detection

for HSTL, LVDS, and other GND-referenced differential

inputs. The MAX9395 provides low-level fail-safe detec-

tion for CML, LVPECL, and other V

ential inputs.

Ultra low 91ps

(PRBS) jitter ensures reliable communications in high-

speed links that are highly sensitive to timing error,

especially those incorporating clock-and-data recovery,

or serializers and deserializers. The high-speed switch-

ing performance guarantees 1.5GHz operation and less

than 87ps (max) skew between channels.

LVDS inputs and outputs are compatible with the

TIA/EIA-644 LVDS standard. The LVDS outputs drive

100Ω loads. The MAX9394/MAX9395 are offered in a

32-pin TQFP package and operate over the extended

temperature range (-40°C to +85°C).

19-2878; Rev 1; 5/07

Pin Configurations and Functional Diagram appear at end

of data sheet.

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

High-Speed Telecom/Datacom Equipment

Central Office Backplane Clock Distribution

DSLAM

Protection Switching

Fault-Tolerant Systems

2:1 Multiplexers and 1:2 Demultiplexers with

P-P

________________________________________________________________ Maxim Integrated Products

(max) pseudorandom bit sequence

General Description

Applications

-referenced differ-

♦ Guaranteed 1.5GHz Operation with 250mV

♦ Simultaneous Loopback Control

♦ 2ps

♦ AC Specifications Guaranteed for 150mV

♦ Signal Inputs Accept Any Differential Signaling

♦ LVDS Outputs for Clock or High-Speed Data

♦ High-Level Input Fail-Safe Detection (MAX9394)

♦ Low-Level Input Fail-Safe Detection (MAX9395)

♦ 3.0V to 3.6V Supply Voltage Range

♦ LVCMOS/LVTTL Logic Inputs

+Denotes a lead-free package.

MAX9394EHJ

MAX9394EHJ+

MAX9395EHJ

MAX9395EHJ+

Differential Output Swing

Differential Input

Standard

3.0V TO

3.6V

LVCMOS/LVTTL

LOGIC INPUTS

PART

(RMS)

= 50Ω

0.1μF

100Ω

(max) Random Jitter

0.01μF

INA

INB0

INB1

ENA0

ENA1

ENB

LB_SELA

LB_SELB

BSEL

Typical Operating Circuit

GND

-40°C to +85°C

TEMP RANGE

GND

MAX9394

MAX9395

Ordering Information

GND

OUTA0

OUTA1

OUTB

Loopback

PIN-

PACKAGE

32 TQFP

= 50Ω

100Ω

Features

RECEIVER

LVDS

CODE

H32-1

PKG

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max9394eti-t Summary of contents

Page 1

Rev 1; 5/07 2:1 Multiplexers and 1:2 Demultiplexers with General Description The MAX9394/MAX9395 consist of a 2:1 multiplexer and a 1:2 demultiplexer with loopback. The multiplexer section (channel B) accepts two low-voltage differential signaling (LVDS) inputs and generates a ...

Page 2

Multiplexers and 1:2 Demultiplexers with Loopback ABSOLUTE MAXIMUM RATINGS V to GND ...........................................................-0.3V to +4.1V CC IN_ _, OUT_ _, OUT_ _, EN_ _, _SEL, LB_SEL_ IN_ _, to GND........................................................-0. IN_ _ to IN_ _..........................................................................±3V Short-Circuit Duration ...

Page 3

Multiplexers and 1:2 Demultiplexers with DC ELECTRICAL CHARACTERISTICS (continued 3.0V to 3.6V 100Ω ±1%, EN_ (MAX9395 -40°C to +85°C, unless otherwise noted. Typical values are ...

Page 4

Multiplexers and 1:2 Demultiplexers with Loopback (V = 3.3V 0.2V +1.2V SUPPLY CURRENT vs. TEMPERATURE 3. 3. ...

Page 5

Multiplexers and 1:2 Demultiplexers with PIN NAME 30, N.C. No Connection. Not internally connected. 31 20, 25 GND Ground Channel B Output Enable. Drive ENB high to enable the LVDS outputs for channel ...

Page 6

Multiplexers and 1:2 Demultiplexers with Loopback PIN NAME Channel A0 Output Enable. Drive ENA0 high to enable the A0 LVDS outputs. An internal 435kΩ resistor 21 ENA0 to GND pulls ENA0 low when unconnected. Channel A0 LVDS Inverting Output. ...

Page 7

Multiplexers and 1:2 Demultiplexers with V IN_ IN_ _ t PLH V OUT_ OUT_ _ 80 ...

Page 8

Multiplexers and 1:2 Demultiplexers with Loopback IN_ _ IN_ _ GENERATOR V EN_ _ V WHEN V OUT_ _ V WHEN V OUT_ _ V WHEN V OUT_ _ V WHEN V OUT_ _ Figure 4. Output Active-to-Disable and ...

Page 9

Multiplexers and 1:2 Demultiplexers with Figure 6. Output Channel-to-Channel Skew Detailed Description The LVDS interface standard provides a signaling method for point-to-point communication over a con- trolled-impedance medium as defined by the ANSI TIA/EIA-644 standard. ...

Page 10

Multiplexers and 1:2 Demultiplexers with Loopback Table 1. Input Select Truth Table LOGIC INPUTS LB_SELA LB_SELB Don’t care. Differential Outputs The output common-mode ...

Page 11

Multiplexers and 1:2 Demultiplexers with INA INA LB_SELB OUTB OUTB ENB ______________________________________________________________________________________ LB_SELA ENA0 MAX9394 OUTA0 MAX9395 OUTA0 0 LB OUTA1 OUTA1 ENA1 INB0 0 LB INB0 0 INB1 1 INB1 BSEL Loopback Functional Diagram 11 ...

Page 12

Multiplexers and 1:2 Demultiplexers with Loopback Pin Configurations TOP VIEW N.C. 1 N.C. 2 N.C. 3 GND 4 MAX9394 ENB 5 MAX9395 OUTB 6 OUTB ...

Page 13

Multiplexers and 1:2 Demultiplexers with (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) ______________________________________________________________________________________ Loopback Package Information PACKAGE OUTLINE, 32L TQFP, 5x5x1.0mm 1 21-0110 ...

Page 14

... Maxim reserves the right to change the circuitry and specifications without notice at any time. 14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2007 Maxim Integrated Products Package Information (continued) PACKAGE OUTLINE, 32L TQFP, 5x5x1.0mm 21-0110 is a registered trademark of Maxim Integrated Products, Inc ...

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