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CDCM61004 Datasheet(PDF) 1 Page - Texas Instruments |
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CDCM61004 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 35 page 1 FEATURES APPLICATIONS DESCRIPTION CDCM61004 www.ti.com ................................................................................................................................................... SCAS871C – FEBRUARY 2009 – REVISED JULY 2009 Four Output, Integrated VCO, Low-Jitter Clock Generator • Chip Enable Control Pin Available 2 • One Single-Ended/Crystal Reference Input • 3.3-V Core and I/O Power Supply Including 24.8832 MHz, 25 MHz, and • Industrial Temperature Range: –40°C to +85°C 26.5625 MHz • 5-mm × 5-mm, 32-pin, QFN (RHB) Package • Input Frequency Range: 21.875 MHz to • ESD Protection Exceeds 2 kV (HBM) 28.47 MHz • On-Chip VCO Operates in Frequency Range of 1.75 GHz to 2.05 GHz • Low Jitter Clock Driver for High-End Datacom • 4x Output Available: Applications Including SONET, Ethernet, Fibre Channel, Serial ATA, and HDTV – Pin-Selectable Between LVPECL, LVDS, or • Cost-Effective High-Frequency Crystal 2-LVCMOS; Operates at 3.3 V Oscillator Replacement • LVCMOS Bypass Output Available • Output Frequency Selectable by /1, /2, /3, /4, /6, /8 from a Single Output Divider • Supports Common LVPECL/LVDS Output The CDCM61004 is a highly versatile, low-jitter Frequencies: frequency synthesizer that can generate four low-jitter – 62.5 MHz, 74.25 MHz, 75 MHz, 77.76 MHz, clock outputs, selectable between low-voltage 100 MHz, 106.25 MHz, 125 MHz, 150 MHz, positive emitter coupled logic (LVPECL), low-voltage 155.52 MHz, 156.25 MHz, 159.375 MHz, differential signaling (LVDS), or low-voltage 187.5 MHz, 200 MHz, 212.5 MHz, 250 MHz, complementary metal oxide semiconductor 311.04 MHz, 312.5 MHz, 622.08 MHz, (LVCMOS) outputs, from a low-frequency crystal or LVCMOS input for a variety of wireline and data 625 MHz communication applications. The CDCM61004 • Supports Common LVCMOS Output features an onboard PLL that can be easily Frequencies: configured solely through control pins. The overall – 62.5 MHz, 74.25 MHz, 75 MHz, 77.76 MHz, output random jitter performance is less than 1ps, 100 MHz, 106.25 MHz, 125 MHz, 150 MHz, RMS (from 10 kHz to 20 MHz), making this device a 155.52 MHz, 156.25 MHz, 159.375 MHz, perfect choice for use in demanding applications such as SONET, Ethernet, Fibre Channel, and SAN. The 187.5 MHz, 200 MHz, 212.5 MHz, 250 MHz CDCM61004 is available in a small, 32-pin, 5-mm × • Output Frequency Range: 43.75 MHz to 5-mm QFN package. 683.264 MHz (See Table 3) • Internal PLL Loop Bandwidth: 400 kHz • 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%) • Low Output Skew of 30 ps on LVPECL Outputs • Divider Programming Using Control Pins: – Two Pins for Prescaler/Feedback Divider – Three Pins for Output Divider – Two Pins for Output Select 1 space Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas space 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, 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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