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Part Number: GS9025A

 

 

Package Cooled: N/A

D/C: QFP

Description: The GS9025A provides automatic cable equalization and high performance clock and data recovery for serial digital signa...


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GS9025A General Description


The GS9025A provides automatic cable equalization and high performance clock and data recovery for serial digital signals. The GS9025A receives either single-ended or differential serial digital data and outputs differential clock and retimed data signals at PECL levels (800mV). The on-board cable equalizer provides up to 40dB of gain at 200MHz which typically results in equalization of greater than 350m of high quality cable at 270Mb/s.

The GS9025A operates in either auto or manual data rate selection mode. In both modes, the GS9025A requires only one external resistor to set the VCO centre frequency and provides adjustment free operation.

The GS9025A has dedicated pins to indicate signal strength/carrier detect, LOCK and data rate. Optional external resistors allow the carrier detect threshold level to be customized to the user's requirement. In addition, the GS9025A provides an 'Output Eye Monitor Test'(OEM_TEST) for diagnostic testing of signal integrity after equalization, prior to reslicing. The serial clock outputs can also be disabled to reduce power. The GS9025A operates from a single +5 or -5 volt supply.

GS9025A Maximum Ratings

PARAMETER VALUE
Supply Voltage  (VS) 5.5V
Input Voltage Range (any input) VCC + 0.5 to VEE - 0.5V
Operating Temperature Range 0°C TA 70°C
Storage Temperature Range -65°C T  150°C
Lead Temperature (soldering, 10 sec) 260°C

GS9025A Features

• SMPTE 259M compliant
• operational to 540Mb/s
• automatic cable equalization (typically greater than
   350m of high quality cable at 270Mb/s)
• adjustment-free operation
• auto-rate selection (5 rates) with manual override
• single external VCO resistor for operation with five input data rates
• data rate indication output
• serial data outputs muted and serial clock remains
   active when input data is lost
• operation independent of SAV/EAV sync signals
• signal strength indicator output
• carrier detect with programmable threshold level
• power savings mode (output serial clock disable)

GS9025A Typical Application

Cable equalization plus clock and data recovery for all high speed serial digital interface applications involving SMPTE 259M and other data standards.

GS9025A Connection Diagram

GS9025A  Connection Diagram

GS9025A datasheet

GS9025A
PDF/DataSheet Download

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