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CDC7005RGZR Folha de dados(PDF) 1 Page - Texas Instruments |
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CDC7005RGZR Folha de dados(HTML) 1 Page - Texas Instruments |
1 / 34 page CDC7005 3.3V HIGH PERFORMANCE CLOCK SYNTHESIZER AND JITTER CLEANER SCAS685L− DECEMBER 2002 − REVISED JUNE 2009 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D High Performance 1:5 PLL Clock Synchronizer D Two Clock Inputs: VCXO_IN Clock Is Synchronized To REF_IN Clock D Synchronizes Frequencies Up To 800 MHz (VCXO_IN) D Supports Five Differential LVPECL Outputs D Each Output Frequency Is Selectable By x1, /2, /4, /8, /16 D All Outputs Are Synchronized D Integrated Low-Noise OPA For External Low-Pass Filter D Efficient Jitter Screening From Low PLL Loop Bandwidth D Low-Phase Noise Characteristic D Programmable Delay For Phase Adjustments D Predivider Loop BW Adjustment D SPI Controllable Division Setting D Power-Up Control Forces LVPECL Outputs to 3-State at VCC < 1.5 V D 3.3-V Power Supply D Packaged In 64-Pin BGA (0,8 mm Pitch − ZVA) or 48-Pin QFN (RGZ) D Industrial Temperature Range –40°C To 85 °C description The CDC7005 is a high-performance, low-phase noise, and low-skew clock synthesizer and jitter cleaner that synchronizes the voltage controlled crystal oscillator (VCXO) frequency to the reference clock. The programmable predividers M and N give a high flexibility to the frequency ratio of the reference clock to VCXO: VCXO_IN/ REF_IN = (NxP)/M. The VCXO_IN clock operates up to 800 MHz. Through the selection of external VCXO and loop filter components, the PLL loop bandwidth and damping factor can be adjusted to meet different system requirements. Each of the five differential LVPECL outputs are programmable by the serial peripheral interface (SPI). The SPI allows individual control of frequency and enable/disable state of each output. The device operates in 3.3-V environment. The built-in latches ensure that all outputs are synchronized. The CDC7005 is characterized for operation from –40 °C to 85°C. Copyright 2009, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. TERMINAL ASSIGNMENTS (TOP VIEW) CTRL_LE CTRL_ CLK CTRL_ DATA CP_OUT OPA_IN OPA_IP OPA_OUT STATUS_ LOCK REF_IN GND GND GND GND GND GND GND I_REF GND STATUS_ REF VCXO_IN GND GND GND GND GND STATUS_ VCXO VCXO_IN B GND Y0 GND GND GND GND GND Y4B Y0B Y4 NPD Y1 Y1B Y2 Y2B Y3 Y3B NRESET 1 2 3 4 5 6 7 8 A B C D E F G H VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC AVCC AVCC AVCC AVCC AVCC 1 13 12 24 25 36 37 48 Top View Thermal Pad must be soldered to GND GND VCC VCC VCC VCC Y4 VCC NRESET VCC AVCC AVCC I_REF VCC VCC VCC Y0 VCC STATUS_REF STATUS_VCXO REF_IN VCXO_IN VCXO_INB Y0B Y4B |
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Descrição semelhante - CDC7005RGZR |
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