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Maxim > Products > [Interface and Interconnect]  [Clock Distribution] 
MAX9390, MAX9391
Anything-to-LVDS Dual 2 x 2 Crosspoint Switches

Dual, 2 x 2 Crosspoint Switches with Anything-to-LVDS Guarantee 1.50GHz Maximum Operating Frequency


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 228kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX9390/MAX9391 dual 2 x 2 crosspoint switches perform high-speed, low-power, and low-noise signal distribution. The MAX9390/MAX9391 multiplex one of two differential input pairs to either or both low-voltage differential signaling (LVDS) outputs for each channel. Independent enable inputs turn on or turn off each differential output pair.

Four LVCMOS/LVTTL logic inputs (two per channel) control the internal connections between inputs and outputs. This flexibility allows for the following configurations: 2 x 2 crosspoint switch, 2:1 mux, 1:2 splitter, or dual repeater. This makes the MAX9390/MAX9391 ideal for protection switching in fault-tolerant systems, loopback switching for diagnostics, fanout buffering for clock/data distribution, and signal regeneration.

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 MAX9390 provides high-level input fail-safe detection for LVDS, HSTL, and other GND-referenced differential inputs. The MAX9391 provides low-level input fail-safe detection for LVPECL, CML, and other VCC-referenced differential inputs.

Ultra-low 82ps(P-P) (max) pseudorandom bit sequence (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 switching performance guarantees 1.5GHz operation and less than 65ps (max) skew between channels.

LVDS inputs and outputs are compatible with the TIA/EIA-644 LVDS standard. The LVDS outputs drive 100Ω loads. The MAX9390/MAX9391 are offered in a 32-pin TQFP package and operate over the extended temperature range (-40°C to +85°C).

Also refer to the MAX9392/MAX9393 with flow-through pinout.

An evaluation kit is available:  MAX9390EVKIT  

Key Features   Applications/Uses
  • 1.5GHz Operation with 250mV Differential Output Swing
  • 2ps(RMS) (max) Random Jitter
  • AC Specifications Guaranteed for 150mV Differential Input
  • Signal Inputs Accept Any Differential Signaling Standard
  • LVDS Outputs for Clock or High-Speed Data
  • High-Level Input Fail-Safe Detection (MAX9390)
  • Low-Level Input Fail-Safe Detection (MAX9391)
  • 3.0V to 3.6V Supply Voltage Range
  • LVCMOS/LVTTL Logic Inputs Control Signal Routing

 
  		• Central Office Backplane Clock Distribution
  		• DSLAM
  		• Fault-Tolerant Systems
  		• High-Speed Telecom/Datacom Equipment
  		• Protection Switching

    Key Specifications:  High-Speed Interconnect (Differential Signaling)
    Part Number Features Signal Type Signal Type Functions Rx Tx tPD
    (ps)    		 VSUPPLY
    (V)    		 Price
    Rx Tx max See Notes
    MAX9390 
    Anything Inputs
    Cross-Flow Pinout
    High-Level Input Fail-Safe Detection
    CML
    HSTL
    LVDS
    LVPECL
    		 LVDS Switch 4 4 565 3.3 $5.60 @1k
    MAX9391 
    Anything Inputs
    Cross-Flow Pinout
    Low-Level Input Fail-Safe Detection
    		 -
    See All High-Speed Interconnect (Differential Signaling) (132)

    Diagram
    MAX9390, MAX9391: Typical Operating Circuit
    Typical Operating Circuit

    Evaluation Kits
  		• MAX9390EVKIT

    Reliability Reports
  		• Show FIT data for:
  		• Request Reliability Report for:

    Software/Models
  		• MAX9390 IBIS Model

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * 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: 1-10 of 10

    MAX9390 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX9390ETJ    
    		Active TQFN;32 pin;26 mm²
    Outline Drawing: 21-0140 (PDF)
    Land Pattern: 90-0001 (PDF)
    Use pkgcode/variation: T3255-3*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX9390ETJ-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX9390ETJ+    
    		Active TQFN;32 pin;26 mm²
    Outline Drawing: 21-0140 (PDF)
    Land Pattern: 90-0001 (PDF)
    Use pkgcode/variation: T3255+3*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9390ETJ+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX9390EHJ    
    		Active TQFP;32 pin;52 mm²
    Outline Drawing: 21-0110 (PDF)
    Land Pattern: 90-0149 (PDF)
    Use pkgcode/variation: H32-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX9390EHJ-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX9390EHJ+  
    		Active TQFP;32 pin;52 mm²
    Outline Drawing: 21-0110 (PDF)
    Land Pattern: 90-0149 (PDF)
    Use pkgcode/variation: H32+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9390EHJ+T    
    		Active TQFP;32 pin;52 mm²
    Outline Drawing: 21-0110 (PDF)
    Land Pattern: 90-0149 (PDF)
    Use pkgcode/variation: H32+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9391 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX9391ETJ    
    		Active TQFN;32 pin;26 mm²
    Outline Drawing: 21-0140 (PDF)
    Land Pattern: 90-0001 (PDF)
    Use pkgcode/variation: T3255-3*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX9391ETJ-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet

    More Information
  		• New Product Press Release 2003-05-02 

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    Document Ref.: 19-2829; Rev 2; 2007-06-05
    This page last modified: 2008-09-16


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