DS4266 Rev 0 10/08 DDR Clock Oscillator General Description Features The DS4266 surface-mount ceramic crystal oscillator is < 0.7ps (typ) from 12kHz to 20MHz Jitter RMS part of Maxims DS4-XO crystal oscillator product fami- LVDS or LVPECL Output Types ly. The DS4266 is a 266MHz crystal oscillator designed 3.3V Operating Voltage to support high-performance DDR memory applications that require a stable, low-jitter, and tight duty-cycle 5.0mm x 3.2mm x 1.49mm, 10-Pin LCCC Ceramic clock source. The device provides an overall accuracy Package and stability better than 50ppm, including aging. Jitter -40C to +85C Operating Temperature Range performance is better than 0.7ps typically over a RMS Lead-Free/RoHS Compliant 12kHz to 20MHz bandwidth, and duty-cycle perfor- mance is better than 48%/52%. Ordering Information The DS4266 has an output frequency of 266MHz, and it supports LVDS and LVPECL output types. The DS4266 PART TEMP RANGE PIN-PACKAGE is constructed using a fundamental crystal in conjunc- DS4266D+ -40C to +85C 10 LCCC tion with high-performance silicon germanium PLL tech- DS4266P+ -40C to +85C 10 LCCC nology, enabling very low phase noise and phase jitter performance. The device operates from a 3.3V 5% +Denotes a lead(Pb)-free/RoHS-compliant package. The lead power supply and consumes a maximum current of finish is JESD97 category e4 (Au over Ni) and is compatible with 100mA. both lead-based and lead-free soldering processes. The DS4266 is packaged in a miniature 5mm x 3.2mm x 1.49mm, 10-lead LCCC ceramic package, making it suitable for applications where board space is critical. Pin Configuration and Selector Guide appear at end of data sheet. Applications DDR Memory Clock Source Typical Operating Circuits V OUTP V OUTP CC CC 0.1F 0.01F 0.1F 0.01F 50 DS4266 DS4266 PECL BIAS 100 V - 2.0V CC 50 OE OE OUTN OUTN GND GND LVDS OPTION LVPECL OPTION Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.DDR Clock Oscillator ABSOLUTE MAXIMUM RATINGS Power-Supply Voltage (V ).......................................-0.3V, +4V Storage Temperature Range ...............................-55C to +85C CC Operating Temperature Range ...........................-40C to +85C Soldering Temperature Profile Junction Temperature......................................................+150C (3 passes max of reflow) ......................Refer to the IPC/JEDEC J-STD-020 Specification. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (V = 3.135V to 3.465V, T = -40C to +85C, unless otherwise noted.) CC A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Operating Voltage Range V (Note 1) 3.135 3.3 3.465 V CC I LVDS, output loaded or unloaded 52 75 CC D Operating Current mA I LVPECL, output unloaded 49 70 CC PU I LVPECL, output load 50 at V - 2.0V 74 100 CC PI CC Output Frequency f f MHz OUT NOM Oscillator Startup Time t (Note 2) 50 ms STARTUP Over temperature range, aging, load, Frequency Stability f -50 f +50 ppm TOTAL NOM supply, and initial tolerance (Note 3) Frequency Stability Over f V = 3.3V -35 +35 ppm TEMP CC Temperature with Initial Tolerance Initial Tolerance f V = 3.3V, T = +25C 20 ppm INITIAL CC A Frequency Change Due to V f V = 3.3V 5% -3 +3 ppm/V CC VCC CC Frequency Change Due to Load 10% variation in termination f 1 ppm LOAD Variation resistance Aging (15 Years) f -7 +7 ppm AGING Integrated phase RMS 12kHz to 5MHz, 0.7 V = 3.3V, T = +25C CC A Integrated phase RMS 12kHz to 20MHz, Jitter J 0.7 ps RMS V = 3.3V, T = +25C CC A Integrated phase RMS 12kHz to 80MHz, 1.0 V = 3.3V, T = +25C CC A 0.7 x Input-Voltage High (OE) V (Note 1) V V IH CC V CC 0.3 x Input-Voltage Low (OE) V (Note 1) 0 V IL V CC Input Leakage (OE) I GND OE V -50 +5.0 A LEAK CC 2 DS4266