DSC8101 DSC8121 Programmable Low-Jitter Precision CMOS Oscillator General Description Features The DSC8101 & DSC8121 series of high Low RMS Phase Jitter: <1 ps (typ) performance field-programmable oscillators High Stability: 10, 25, 50 ppm utilizes a proven silicon MEMS technology to provide excellent jitter and stability over a Wide Temperature Range wide range of supply voltages and o Automotive: -55 to 125 C temperatures. Using the TIMEFLASH o Ext. Industrial: -40 to 105 C programmer, the end user can easily o Industrial: -40 to 85 C program the oscillators frequency in the field o Ext. commercial: -20 to 70 C for immediate testing or use in advance prototype development or production. High Supply Noise Rejection: -50 dBc Wide Freq. Range: 10 to 170 MHz DSC8101 has a standby feature allowing it to completely power-down when EN pin is Small Industry Standard Footprints pulled low whereas for DSC8121, only the o 2.5x2.0, 3.2x2.5, 5.0x3.2, & 7.0x5.0 mm outputs are disabled when EN is low. Both Excellent Shock & Vibration Immunity oscillators are available in industry standard 2 o Qualified to MIL-STD-883 packages, including the small 3.2x2.5 mm , and are drop-in replacement for standard High Reliability 4-pin CMOS quartz oscillators. o 20x better MTF than quartz oscillators Low Current Consumption Supply Range of 2.25 to 3.6 V Standby & Output Enable Function Block Diagram Lead Free & RoHS Compliant Applications Storage Area Networks o SATA, SAS, Fibre Channel Passive Optical Networks o EPON, 10G-EPON, GPON, 10G-PON Ethernet o 1G, 10GBASE-T/KR/LR/SR, and FCoE Output Enable Modes HD/SD/SDI Video & Surveillance EN Pin DSC8101 DSC8121 PCI Express High Output Active Output Active DisplayPort NC Output Active Output Active Low Standby Output Disabled All Rights Reserved. No part of this document may be copied or reproduced in any form without the prior written permission of Micrel, Inc. Micrel Inc. may update or make changes to the contents, products, programs or services described at any time without notice. This document neither states nor implies any kind of warranty, including, but not limited to implied warranties of merchantability or fitness for a particular use. Page 1 MK-Q-B-P-D-110410-01-2 Programmable Low-Jitter Precision CMOS Oscillator DSC8101 DSC8112 1 Absolute Maximum Ratings Ordering Code Item Min Max Unit Condition Temp Range E: -20 to 70 Supply Voltage -0.3 +4.0 V Enable Modes Packing I: -40 to 85 0: Enable/Standby T: Tape & Reel L: -40 to 105 Input Voltage -0.3 V +0.3 V DD 2: Enable/Disable : Tube M: -55 to 125 Junction Temp - +150 C Storage Temp -55 +150 C DSC81 0 1 C I 5 T - Soldering Temp - +260 C 40sec max. Package ESD - V A: 7.0x5.0mm Stability B: 5.0x3.2mm HBM 4000 1: 50ppm C: 3.2x2.5mm 2: 25ppm MM 400 D: 2.5x2.0mm 5: 10ppm CDM 1500 Note: 1000+ years of data retention on internal memory Specifications Parameter Condition Min. Typ. Max. Unit 1 Supply Voltage V 2.25 3.6 V DD EN pin low output is disabled Supply Current I DSC8101 0.095 mA DD DSC8121 20 22 Frequency Stability Includes frequency variations due Ext Comm. & Ind. only 10 f to initial tolerance, temp. and ppm All temp ranges 25 power supply voltage All temp ranges 50 Aging f 1 year 25C 5 ppm 2 Startup Time t T=25C 5 ms SU Input Logic Levels Input logic high V 0.75xV - V IH DD Input logic low V - 0.25xV IL DD 3 Output Disable Time t 5 ns DA DSC8101 5 ms t Output Enable Time EN DSC8121 20 ns 4 Enable Pull-Up Resistor Pull-up resistor exist 40 k CMOS Output output is enabled 4 Supply Current I 31 35 mA DD C =15pF, F =125 MHz L 0 Output Logic Levels Output logic high V I=6mA 0.9xV - V OH DD Output logic low V - 0.1xV OL DD 3 Output Transition time 20% to 80% Rise Time t 1.1 2 ns R C =15pF L Fall Time t 1.3 2 F All temp range except Auto 10 170 Frequency f MHz 0 Auto temp range 100 Output Duty Cycle SYM 45 55 % Fout=125MHz 3 Period Jitter J ps PER RMS 200kHz to 20MHz 125MHz 0.3 Integrated Phase Noise J 100kHz to 20MHz 125MHz 0.38 ps PH RMS 12kHz to 20MHz 125MHz 1.7 2 1. Pin 6 VDD should be filtered with 0.1uf capacitor. 2. t is time to 100PPM of output frequency after V is applied and outputs are enabled. su DD 3. Output Waveform and Test Circuit figures below define the parameters. 4. Output is enabled if pad is floated or not connected. All Rights Reserved. No part of this document may be copied or reproduced in any form without the prior written permission of Micrel, Inc. Micrel Inc. may update or make changes to the contents, products, programs or services described at any time without notice. This document neither states nor implies any kind of warranty, including, but not limited to implied warranties of merchantability or fitness for a particular use. Page 2 MK-Q-B-P-D-110410-01-2