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CDCM61001RHBT датащи(PDF) 1 Page - Texas Instruments |
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CDCM61001RHBT датащи(HTML) 1 Page - Texas Instruments |
1 / 35 page CDCM61001 www.ti.com SCAS869C – FEBRUARY 2009 – REVISED FEBRUARY 2010 One Output, Integrated VCO, Low-Jitter Clock Generator Check for Samples: CDCM61001 1 FEATURES • Chip Enable and Device Reset Control Pins Available 2 • One Crystal Reference Input Including 24.8832 MHz, 25 MHz, and 26.5625 MHz • 3.3-V Core and I/O Power Supply • Input Frequency Range: 21.875 MHz to • Industrial Temperature Range: –40°C to +85°C 28.47 MHz • 5-mm × 5-mm, 32-pin, QFN (RHB) Package • On-Chip VCO Operates in Frequency Range of • ESD Protection Exceeds 2 kV (HBM) 1.75 GHz to 2.05 GHz • 1x Output Available: APPLICATIONS • Low Jitter Clock Driver for High-End Datacom – Pin-Selectable Between LVPECL, LVDS, or Applications Including SONET, Ethernet, Fibre 2-LVCMOS; Operates at 3.3 V Channel, Serial ATA, and HDTV • LVCMOS Bypass Output Available • Cost-Effective High-Frequency Crystal • Output Frequency Selectable by /1, /2, /3, /4, /6, Oscillator Replacement /8 from the Output Divider • Supports Common LVPECL/LVDS Output Frequencies: DESCRIPTION – 62.5 MHz, 74.25 MHz, 75 MHz, 77.76 MHz, The CDCM61001 is a highly versatile, low-jitter 100 MHz, 106.25 MHz, 125 MHz, 150 MHz, frequency synthesizer that can generate low-jitter 155.52 MHz, 156.25 MHz, 159.375 MHz, clock outputs, selectable between low-voltage 187.5 MHz, 200 MHz, 212.5 MHz, 250 MHz, positive emitter coupled logic (LVPECL), low-voltage 311.04 MHz, 312.5 MHz, 622.08 MHz, differential signaling (LVDS), or low-voltage 625 MHz complementary metal oxide semiconductor (LVCMOS) outputs, from a low-frequency crystal for a • Supports Common LVCMOS Output variety of wireline and data communication Frequencies: applications. The CDCM61001 features an onboard – 62.5 MHz, 74.25 MHz, 75 MHz, 77.76 MHz, PLL that can be easily configured solely through 100 MHz, 106.25 MHz, 125 MHz, 150 MHz, control pins. The overall output random jitter 155.52 MHz, 156.25 MHz, 159.375 MHz, performance is less than 1ps, RMS (from 10 kHz to 187.5 MHz, 200 MHz, 212.5 MHz, 250 MHz 20 MHz), making this device a perfect choice for use in demanding applications such as SONET, Ethernet, • Output Frequency Range: 43.75 MHz to Fibre Channel, and SAN. The CDCM61001 is 683.264 MHz (See Table 3) available in a small, 32-pin, 5-mm × 5-mm QFN • Internal PLL Loop Bandwidth: 400 kHz package. • High-Performance PLL Core: – Phase Noise typically at –146 dBc/Hz at 5-MHz Offset for 625-MHz LVPECL Output – Random Jitter typically at 0.509 ps, RMS (10 kHz to 20 MHz) for 625-MHz LVPECL Output • Output Duty Cycle Corrected to 50% (± 5%) • Divider Programming Using Control Pins: – Two Pins for Prescaler/Feedback Divider – Three Pins for Output Divider – Two Pins for Output Select 1 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. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2009–2010, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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Аналогичное описание - CDCM61001RHBT |
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