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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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GS9025ACTM Fiches technique(PDF) 1 Page - Gennum Corporation |
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GS9025ACTM Fiches technique(HTML) 1 Page - Gennum Corporation |
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1 / 18 page  GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3 Tel. +1 (905) 632-2996 Fax. +1 (905) 632-5946 E-mail: info@gennum.com www.gennum.com Revision Date: June 2000 Document No. 522 - 75 - 00 PRELIMINARY DATA SHEET 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) APPLICATIONS Cable equalization plus clock and data recovery for all high speed serial digital interface applications involving SMPTE 259M and other data standards. 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. BLOCK DIAGRAM ORDERING INFORMATION PART NUMBER PACKAGE TEMPERATURE GS9025ACQM 44 pin MQFP Tray 0°C to 70°C GS9025ACTM 44 pin MQFP Tape 0°C to 70°C LF+ LFS LF- CBG RVCO CARRIER DETECT PHASELOCK HARMONIC FREQUENCY ACQUISITION VCO DIVISION 3 BIT COUNTER LOCK SDO SDO CLK_EN SCO SCO SMPTE AUTO/MAN SS0 SS1 SS2 MUTE COSC A/D PHASE DETECTOR DECODER LOGIC ANALOG DIGITAL MUX DDI + - DDI SDI SDI OEM_TEST AGC CAP CD_ADJ AUTO EQ CONTROL EYE MONITOR VARIABLE GAIN EQ STAGE CHARGE PUMP + - + - SSI/CD GENLINX ™ II GS9025A Serial Digital Receiver |
Numéro de pièce similaire - GS9025ACTM |
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Description similaire - GS9025ACTM |
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