DSC1101 DSC1121 Low-Jitter Precision CMOS Oscillator General Description Features The DSC1101 & DSC1121 series of high Low RMS Phase Jitter: <1 ps (typ) performance oscillators utilizes a proven High Stability: 10, 25, 50 ppm silicon MEMS technology to provide excellent jitter and stability over a wide range of Wide Temperature Range supply voltages and temperatures. By o Automotive: -55 to 125 C eliminating the need for quartz or SAW o Ext. Industrial: -40 to 105 C technology, MEMS oscillators significantly o Industrial: -40 to 85 C enhance reliability and accelerate product o Ext. commercial: -20 to 70 C development, while meeting stringent clock performance criteria for a variety of High Supply Noise Rejection: -50 dBc communications, storage, and networking Wide Freq. Range: 2.3 to 170 MHz applications. Small Industry Standard Footprints DSC1101 has a standby feature allowing it to o 2.5x2.0, 3.2x2.5, 5.0x3.2, & 7.0x5.0 mm completely power-down when EN pin is Excellent Shock & Vibration Immunity pulled low whereas for DSC1121, only the o Qualified to MIL-STD-883 outputs are disabled when EN is low. Both oscillators are available in industry standard High Reliability 2 packages, including the small 3.2x2.5 mm , o 20x better MTF than quartz oscillators and are drop-in replacements for standard Low Current Consumption 4-pin CMOS quartz crystal oscillators. 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 DSC1101 DSC1121 PCI Express High Output Active Output Active DisplayPort NC Output Active Output Active Low Standby Output Disabled DSC1101 DSC1121 Page 1 MK-Q-B-P-D-110410-01-6 Low-Jitter Precision CMOS Oscillator DSC1101 DSC1121 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 DSC11 0 1 C I 5 125.0000 T - Soldering Temp - +260 C 40sec max. ESD - V Package Stability Freq (MHz) HBM 4000 A: 7.0x5.0mm 1: 50ppm 125.0000 B: 5.0x3.2mm 2: 25ppm MM 400 C: 3.2x2.5mm 5: 10ppm CDM 1500 D: 2.5x2.0mm N: 7.0x5.0mm (no center pad) 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 DSC1101 0.095 mA DD DSC1121 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 DSC1101 5 ms Output Enable Time t EN DSC1121 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 2.3 170 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 V should be filtered with 0.1uf capacitor. DD 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. DSC1101 DSC1121 Page 2 MK-Q-B-P-D-110410-01-6