MX85xxxx Family Complete Clocking Solution with Integrated Crystal, Synthesizer, and Fanout ClockWorks™ Fusion General Description Features Micrel’s MX85xxxx family of parts are ultra-low phase noise clocking solutions that integrate the crystal, synthesizer, and fanout buffers, providing up to two frequencies from a single 5mm × 7mm LGA package. Integrating the entire clock chain means that 162fs jitter performance includes fanout and crosstalk. The MX85xxxx family offers a series of crystal frequency options that generate commonly-required Ethernet, storage, telecommunications, and computing clock frequencies up to 840MHz. Configuring the MX85xxxx parts using OTP options, a variety of output frequencies are available. Optimized for applications that require performance, reliability, and high integration, the MX85xxxx family delivers the complete clocking chain from crystal to fanout buffer. Data sheets and support documentation can be found on Micrel’s web site at: www.micrel.com. Complete ultra-low jitter clocking solution Highly integrated, includes crystal and fanout buffers Ultra-low 162fs jitter, including fanout buffer (156MHz output frequency, 12kHz to 20MHz integration bandwidth, including crosstalk) Two output frequencies up to 840MHz Supports LVPECL, LVDS, HCSL, and CMOS outputs Integrated power supply noise reduction and frequency select Independent OE and VDDO per output bank ±50ppm total stability option (includes aging) 40C to 85C temperature range option Available in compact 5mm × 7mm LGA package Applications 10/40/100 Gigabit Ethernet Fibre Channel, SAS/SATA Networking, computing, servers, PCI Express 2.0/3.0 Telecom Wireless infrastructure ________________________________________________________________________________________________ Functional Block Diagram ClockWorks is a trademark of Micrel, Inc Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com November 2012 M9999-110912-A [email protected] or (408) 955-1690 Micrel, Inc. MX85xxxx Family Ordering Information Part Number(1) Shipping Package MX85xxxxxxTA Tube 38-Pin 5mm × 7mm LGA MX85xxxxxxRA Tape and Reel 38-Pin 5mm × 7mm LGA Note: 1. Insert custom code into “xxxxxx”. Contact Micrel for details regarding exact configurations, options, and part numbers available. Standard Frequencies(2) Part Number Frequencies (MHz) MX852Axxxxx 26.041666, 52.08333, 78.125, 104.1666, 130.20833, 156.25, 208.33333, 260.41666, 312.5, 390.625, 520.83333, 625, 781.25 MX852Exxxxx 25, 50, 75, 100, 125, 150, 175, 200, 225, 250, 275, 300, 325, 350, 375, 400, 425, 450, 475, 500, 525, 550, 575, 600, 625, 650, 675, 725, 750, 775, 800, 825 MX852Cxxxxx 26.5625, 53.125, 106.25, 132.81250, 159.375, 212.5, 318.75, 425, 531.25 Note: 2. Optimal frequencies. Additional output frequencies are available. Contact Micrel for more frequency options. Pin Configuration 38-Pin 5mm × 7mm LGA Top View November 2012 2 M9999-110912-A [email protected] or (408) 955-1690 Micrel, Inc. MX85xxxx Family Absolute Maximum Ratings(1) Operating Ratings(2) Supply Voltage (VDDA, VDD, VDDO)................................+4.6V Input Voltage (VIN). ............................... 0.50V to VDD+0.5V Lead Temperature (soldering, 20s)............................ 260°C Storage Temperature (Ts) .........................65°C to +150°C Supply Voltage (VDDOX, VDD, VDDA) ....... +2.375V to +3.465V Ambient Temperature (TA) .......................... –40°C to +85°C Electrical Characteristics(4) VDD = VDDO_A = VDDO_B = 3.3V ±5%, or 2.5V ±5% VDD = 3.3V ±5%, VDDO_A = VDDO_B = 3.3V ±5%, or 2.5V ±5% TA = –40°C to +85°C, unless noted. Symbol VDDX Min. Typ. Max. Units 2.5V Operating Voltage Parameter 2.375 2.5 2.625 V 3.3V Operating Voltage 3.135 3.3 3.465 V IDD Core Supply Current F0 Frequency Range FSTABILITY Frequency Stability(5) tSTART Start-Up Time Condition Outputs not loaded VDDO_A output bank VDDO_B output bank 90 12 840 Frequency stability over temperature ±20 Total stability ±50 (6) tSKEW Output-to-Output Skew tJIT() RMS Phase Jitter Including Crosstalk All outputs active, LVPECL mA 156.25MHz (12kHz to 20MHz) 162 156.25MHz (1.875MHz to 20MHz) 73 312.5MHz (12kHz to 20MHz) 227 MHz ppm 20 ms 45 ps fs Notes: 1. Permanent device damage may occur if absolute maximum ratings are exceeded. This is a stress rating only and functional operation is not implied at conditions other than those detailed in the operational sections of this data sheet. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. 2. The data sheet limits are not guaranteed if the device is operated beyond the operating ratings. 3. Package thermal resistance assumes exposed pad is soldered (or equivalent) to the devices most negative potential on the PCB. 4. The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established (configuration dependent). Contact Micrel for details. 5. Inclusive of temperature drift, aging, initial accuracy, shock, and vibration. Operating temperature range dependent on part number configuration. 6. Skew between output buffers. Measured at the output differential crossing points. Applies to outputs at the same supply voltage using same output format. November 2012 3 M9999-110912-A [email protected] or (408) 955-1690 Micrel, Inc. MX85xxxx Family Phase Noise Plots Figure 1. LVPECL Output (156.25MHz), 12kHz20MHz Integration Bandwidth, 162fs Jitter, All Outputs Active Figure 2. LVPECL Output (156.25MHz), 1.875MHz20MHz Integration Bandwidth, 73fs Jitter, All Outputs Active November 2012 4 M9999-110912-A [email protected] or (408) 955-1690 Micrel, Inc. MX85xxxx Family Phase Noise Plots (Continued) Figure 3. LVPECL Output (312.5MHz), 12kHz20MHz Integration Bandwidth, 227fs Jitter, All Outputs Active November 2012 5 M9999-110912-A [email protected] or (408) 955-1690 Micrel, Inc. MX85xxxx Family Package Information(1) 38-Pin 5mm × 7mm LGA (MM) Note: 1. Package information is correct as of the publication date. For updates and most current information, go to www.micrel.com. November 2012 6 M9999-110912-A [email protected] or (408) 955-1690 Micrel, Inc. MX85xxxx Family MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this data sheet. This information is not intended as a warranty and Micrel does not assume responsibility for its use. Micrel reserves the right to change circuitry, specifications and descriptions at any time without notice. No license, whether express, implied, arising by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Micrel’s terms and conditions of sale for such products, Micrel assumes no liability whatsoever, and Micrel disclaims any express or implied warranty relating to the sale and/or use of Micrel products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. © 2012 Micrel, Incorporated. November 2012 7 M9999-110912-A [email protected] or (408) 955-1690