Programmable Low-Jitter Precision CMOS Oscillator
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- George Franklin
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1 DSC8121 General Description The DSC8101 & DSC8121 series of high performance fieldprogrammable oscillators utilizes a proven silicon MEMS technology to provide excellent jitter and stability over a wide range of supply voltages and temperatures. Using the TIMEFLASH programmer, the end user can easily program the oscillators frequency in the field for immediate testing or use in advance prototype development or production. DSC8101 has a standby feature allowing it to completely powerdown when EN pin is pulled low; whereas for DSC8121, only the outputs are disabled when EN is low. Both oscillators are available in industry standard packages, including the small 3.2x2.5 mm 2, and are dropin replacement for standard 4pin CMOS quartz oscillators. Block Diagram Features Low RMS Phase Jitter: <1 ps (typ) High Stability: ±10, ±25, ±50 ppm Wide Temperature Range o Automotive: 55 to 125 C o Ext. Industrial: 40 to 105 C o Industrial: 40 to 85 C o Ext. commercial: 20 to 70 C High Supply Noise Rejection: 50 dbc Short Lead Time: 2 Weeks Wide Freq. Range: 10 to 170 MHz Small Industry Standard Footprints o 3.2x2.5, 5.0x3.2, and 7.0x5.0 mm Excellent Shock & Vibration Immunity o Qualified to MILSTD883 High Reliability o 20x better MTF than quartz oscillators Low Current Consumption Supply Range of 2.25 to 3.6 V Standby & Output Enable Function Lead Free & RoHS Compliant Applications Output Enable Modes EN Pin DSC8101 DSC8121 High Output Active Output Active NC Output Active Output Active Low Standby Output Disabled Storage Area Networks o SATA, SAS, Fibre Channel Passive Optical Networks o EPON, 10GEPON, GPON, 10GPON Ethernet o 1G, 10GBASET/KR/LR/SR, and FCoE HD/SD/SDI Video & Surveillance PCI Express DisplayPort Page 1
2 Absolute Maximum Ratings Item Min Max Unit Condition Supply Voltage V Input Voltage 0.3 V DD +0.3 V Junction Temp +150 C Storage Temp C Soldering Temp +260 C 40sec max. ESD HBM MM CDM Note: years of data retention on internal memory V Ordering Code Enable Modes 0: Enable/Standby 2: Enable/Disable DSC C I 5 Package A: 7.0x5.0mm B: 5.0x3.2mm C: 3.2x2.5mm Temp Range E: 20 to 70 I: 40 to 85 L: 40 to 105 M: 55 to 125 Stability 1: ±50ppm 2: ±25ppm 5: ±10ppm Packing T: Tape & Reel : Tube T Specifications Parameter Condition Min. Typ. Max. Unit Supply Voltage 1 V DD V Supply Current Frequency Stability Ext Comm. & Ind. only All temp ranges All temp ranges I DD f 1. Pin 6 V DD should be filtered with 0.1uf capacitor. 2. t su is time to 100PPM of output frequency after V DD is applied and outputs are enabled. 3. Output Waveform and Test Circuit figures below define the parameters. 4. Output is enabled if pad is floated or not connected. EN pin low output is disabled DSC8101 DSC Includes frequency variations due to initial tolerance, temp. and power supply voltage Aging f 1 C ±5 ppm Startup Time 2 t SU T=25 C 5 ms Input Logic Levels Input logic high Input logic low 0.75xV DD V IH V V IL 0.25xV DD Output Disable Time 3 t DA 5 ns Output Enable Time t EN DSC8101 DSC8121 Enable PullUp Resistor 4 Pullup resistor exist 40 kω Supply Current 4 Output Logic Levels Output logic high Output logic low Output Transition time 3 Rise Time Fall Time I DD V OH V OL t R t F Frequency f 0 CMOS Output output is enabled C L =15pF, F 0 =125 MHz I=±6mA 20% to 80% C L =15pF All temp range except Auto Auto temp range 0.9xV DD ±10 ±25 ± ma ppm ms ns ma 0.1xV DD Output Duty Cycle SYM % Period Jitter J PER Fout=125MHz 3 Integrated Phase Noise J PH 200kHz to 125MHz 100kHz to 125MHz 12kHz to 125MHz V ns MHz ps RMS ps RMS Page 2
3 Nominal Performance Parameters (Unless specified otherwise: T=25 C, V DD =3.3 V) Phase Jitter (ps RMS) MHz CMOS 50MHz CMOS 106MHz CMOS 125MHz CMOS Rejection (dbc) mv 100 mv Lowend of integration BW: x khz to 20 MHz Phase jitter (integrated phase noise) Supply Noise Frequency (khz) Power supply rejection ratio Output Waveform t R t F V OH Output V OL 1/f o t EN t DA V IH Enable V IL Typical Termination Scheme V DD 0.1uF Rs Ω Rs = 0 Ω for test C L CMOS load capacitance Rs serves to match the trace impedances. Depending on board layout, the value may rangefrom0to 30ohms. Page 3
4 Test Circuit I DD V DD 0.1uF pF V DA Board Layout (recommended) Solder Reflow Profile Temperature ( C) 260 C 217 C 200 C 150 C 25 C 3C/Sec Max Sec Pre heat 8 min max 3C/Sec Max Sec Sec Reflow 6C/Sec Max. Cool Time MSL 260 C refer to JSTD020C RampUp Rate (200 C to Peak Temp) 3 C/Sec Max. Preheat Time 150 C to 200 C Sec Time maintained above 217 C Sec Peak Temperature C Time within 5 C of actual Peak 2040 Sec RampDown Rate 6 C/Sec Max. Time 25 C to Peak Temperature 8 min Max. Page 4
5 Package Dimensions 7.0 x 5.0 mm Plastic Package 5.0 x 3.2 mm Plastic Package Page 5
6 3.2 x 2.5 mm Plastic Package DISCERA, Inc Concourse Drive, San Jose, California USA Phone: +1 (408) Fax: +1 (408) sales@discera.com Page 6
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PARAMETER SYMBOL CONDITIONS VALUE UNIT
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FEATURES APPLICATIONS 0.125ps typ jitter (150fs MAX f > 200MHz, 25 C) Highest in-class frequency range from 50 to 2100MHz Excellent spurious suppresion 70mA MAX IDD (, any VDD) Lowest in-class power consumption
AMJD-SERIES. fout = 27MHz, VDD=1.8V,
FEATURES APPLICATIONS Output selectable between 2 frequencies Compact footprint as small as 1.6x1.2mm Low power consumption 1MHz to 100MHz output frequency range Short lead time for new frequencies Wide
LVPECL 5 x 3.2mm 1.8V Oscillator
LVPECL 5 x 3.2mm 1.8V Oscillator Features This part is no longer available from Fox, please contact IDT for this product. Model: FXU-PC51 SERIES Freq: 0.016 MHz to 670 MHz Rev. 05/27/2015 ULTRA Low Jitter
Wave Form: Square x 20.2 x 5.88H [0.504 x x 0.231] G8 500 khz ~ 170 MHz 4 pin DIL half size
![Wave Form: Square x 20.2 x 5.88H [0.504 x x 0.231] G8 500 khz ~ 170 MHz 4 pin DIL half size](/thumbs/91/106537005.jpg "Wave Form: Square x 20.2 x 5.88H [0.504 x x 0.231] G8 500 khz ~ 170 MHz 4 pin DIL half size")
V C X O G series What is a VCXO? Logic: TTL / CMOS Wave Form: Square MERCURY Since 1973 Unlike regular clock oscillator which has fixed output frequency, the output frequency of a VCXO (also known as frequency
ICS CLOCK SYNTHESIZER FOR PORTABLE SYSTEMS. Description. Features. Block Diagram PRELIMINARY DATASHEET
PRELIMINARY DATASHEET ICS1493-17 Description The ICS1493-17 is a low-power, low-jitter clock synthesizer designed to replace multiple crystals and oscillators in portable audio/video systems. The device
Low Phase Noise, LVPECL VCXO (for 150MHz to 160MHz Fundamental Crystals) FEATURES. * Internal 60KΩ pull-up resistor
0.952mm VDD QB PL586-55/-58 FEATURES DIE CONFIGURATION Advanced non multiplier VCXO Design for High Performance Crystal Oscillators Input/Output Range: 150MHz to 160MHz Phase Noise Optimized for 155.52MHz:
Low-Power 2.25V to 3.63V DC to 150MHz 1:6 Fanout Buffer IC DESCRIPTION
FEATURES 1:6 LVCMOS output fanout buffer for DC to 150MHz 8mA Output Drive Strength Low power consumption for portable applications Low input-output delay Output-Output skew less than 250ps Low Additive
CXOQ CXOQ 1.8V CXOQ 2.5V CXOQ 3.0V CXOQ 3.3V
CXOQ Statek s ultra miniature and ultra low profile CXOQ oscillators consist of a CMOS/TTL compatible hybrid circuit and a state-ofthe-art, miniature, fundamental-mode crystal. Model Name Description CXOQ
CPPD C 1 L Z A5 B6 XX.XXXX / YY.YYYY CPPD
Field Programmable Crystal Oscillator Programmed in the field with the PG3200 oscillator programming itrument within seconds. Factory Programmable Standard Package Optio Itrument Part Number: CPPD C 1
VS-708 Single Frequency VCSO
VS-708 Single Frequency VCSO VS-708 Description The VS-708 is a Voltage Controlled SAW Oscillator that operates at the fundamental or a fraction of the internal SAW filter frequency. The SAW component
PSE Technology Corporation
PSE Technology Corporation SPECIFICATION FOR APPROVAL CUSTOMER NOMINAL FREQUENCY 24.000000 MHz PRODUCT TYPE TYPE FJ 2.5x2.0 SEAM SEALED CRYSTAL CLOCK OSCILLATOR SPEC. NO. ( P/N ) FJ2400002 CUSTOMER P/N
VFH230C Series XO Low Jitter 3.3V 5x7mm SMD, LVPECL / LVDS
5x7mm SMD, LV / Features 750kHz to 800MHz frequency range
Ultra-miniature, Low Power, kHz MEMS Oscillator
Moisture Sensitivity Level (MSL) 1 ESD Sensitive FEATURES: Smallest 32.768kHz TCXO in the market: 1.54 x 0.84 x 0.6mm Supply oltage: 1.5 to 3.63 Ultra-Low Current Consumption: 1.52µA max.(core current,
PSE Technology Corporation
PSE Technology Corporation SPECIFICATION FOR APPROVAL CUSTOMER NOMINAL FREQUENCY 25.000000 MHz PRODUCT TYPE SPEC. NO. ( P/N ) TYPE FJ 2.5x2.0 SEAM SEALED CRYSTAL CLOCK OSCILLATOR CUSTOMER P/N ISSUE DATE