DSC8102 DSC8122 Programmable Low-Jitter Precision LVPECL Oscillator Features General Description The DSC8102 & DSC8122 series of high performance field-programmable 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. DSC8102 has a standby feature allowing it to completely power-down when EN pin is pulled low; whereas for DSC8122, only the outputs are disabled when EN is low. Both oscillators are available in industry standard packages, including the small 3.2x2.5 mm2, and are “drop-in” replacement for standard 6-pin LVPECL quartz oscillators. Low RMS Phase Jitter: <1 ps (typ) High Stability: ±10, ±25, ±50 ppm Wide Temperature Range o Industrial: -40° to 85° C o Ext. commercial: -20° to 70° C High Supply Noise Rejection: -50 dBc Wide Freq. Range: 10 to 460 MHz Small Industry Standard Footprints o 2.5x2.0, 3.2x2.5, 5.0x3.2, & 7.0x5.0 mm Excellent Shock & Vibration Immunity o Qualified to MIL-STD-883 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 Block Diagram LVDS & HCSL Versions Available Applications Output Enable Modes EN Pin High NC Low DSC8102 Outputs Active Outputs Active Standby DSC8122 Outputs Active Outputs Active Outputs Disabled 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 HD/SD/SDI Video & Surveillance PCI Express: Gen 1 & Gen 2 DisplayPort 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-110410-02-2 DSC8102 DSC8122 Programmable Low-Jitter Precision LVPECL Oscillator Absolute Maximum Ratings Ordering Code Item Min Max Unit Supply Voltage -0.3 +4.0 V Input Voltage -0.3 VDD+0.3 V Junction Temp - +150 °C Storage Temp -55 +150 °C Soldering Temp - +260 °C ESD HBM MM CDM - Condition Enable Modes 0: Enable/Standby 2: Enable/Disable Temp Range E: -20 to 70 I: -40 to 85 DSC81 0 2 C I 5 40sec max. - Package A: 7.0x5.0mm B: 5.0x3.2mm C: 3.2x2.5mm D: 2.5x2.0 mm V 4000 400 1500 Packing T: Tape & Reel : Tube T Stability 1: ±50ppm 2: ±25ppm 5: ±10ppm Note: 1000+ years of data retention on internal memory Specifications Parameter Supply Voltage Condition 1 VDD Supply Current IDD Frequency Stability Δf Aging Startup Time2 Input Logic Levels Input logic high Input logic low Δf tSU VIH VIL Output Disable Time3 tDA Output Enable Time tEN Enable Pull-Up Resistor4 Min. Typ. 2.25 EN pin low – outputs are disabled DSC8102 DSC8122 Includes frequency variations due to initial tolerance, temp. and power supply voltage 1 year @25°C T=25°C 20 0.75xVDD DSC8102 DSC8122 Pull-up resistor exist Max. Unit 3.6 V 0.095 22 ±10 ±25 ±50 ±5 5 mA ppm ppm ms 0.25xVDD V 5 ns 5 20 ms ns 40 kΩ LVPECL Outputs Supply Current IDD Output Enabled, RL=50Ω Output Logic Levels Output logic high Output logic low VOH VOL RL=50Ω Pk to Pk Output Swing Output Transition time Rise Time Fall Time 3 Frequency tR tF 56.5 VDD-1.08 - 58 mA VDD-1.55 V Single-Ended 800 mV 20% to 80% RL=50Ω, CL= 0pF 250 ps f0 Single Frequency 10 460 MHz Output Duty Cycle SYM Differential 48 52 % Period Jitter JPER Integrated Phase Noise Notes: 1. 2. 3. 4. JPH 2.5 200kHz to 20MHz @156.25MHz 100kHz to 20MHz @156.25MHz 12kHz to 20MHz @156.25MHz 0.25 0.38 1.7 psRMS 2 psRMS Pin 6 VDD should be filtered with 0.1uf capacitor. tsu is time to 100ppm of output frequency after VDD is applied and outputs are enabled. Output Waveform and Test Circuit figures below define the parameters. 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-110410-02-2 DSC8102 DSC8122 Programmable Low-Jitter Precision LVPECL Oscillator Nominal Performance Parameters (Unless specified otherwise: T=25° C, VDD=3.3 V) 2.5 0 -10 100-mV -20 Phase Jitter (ps RMS) Rejection (dBc) 156MHz-LVPECL 50-mV -30 -40 -50 -60 212MHz-LVPECL 2.0 320MHz-LVPECL 1.5 410MHz-LVPECL 1.0 0.5 -70 0.0 -80 0.1 1 10 100 1000 0 10000 200 400 600 800 1000 Low-end of integration BW: x kHz to 20 MHz Supply Noise Frequency (kHz) Power supply rejection ratio Phase jitter (integrated phase noise) Output Waveform tR Output tF 80% 830 mv 50% Output 20% tEN 1/f o tDA VIH Enable VIL Typical Termination Scheme VDD VDD 0.1uF 130 Ω 130 Ω 6 2 5 3 4 100 Ω 82 Ω 82 Ω 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 3 | MK-Q-B-P-D-110410-02-2 DSC8102 DSC8122 Programmable Low-Jitter Precision LVPECL Oscillator Test Circuit LVPECL IDD VDD LVPECL 0.1uF 6 5 4 1 2 3 VDA 50Ω 50Ω 0.01uF VTT VTT= VDD- 2.0V Solder Reflow Profile 20-40 Sec Se 3C / 217°C 200°C 60-150 Sec S 6C/ ax cM Se 3C / 25°C 60-180 Sec Pre heat 8 min max Reflow x. 150°C Ma . ec Temperature (°C) cM ax . 260°C Cool MSL 1 @ 260°C refer to JSTD-020C Ramp-Up Rate (200°C to Peak Temp) 3°C/Sec Max. Preheat Time 150°C to 200°C 60-180 Sec Time maintained above 217°C 60-150 Sec 255-260°C Peak Temperature Time within 5°C of actual Peak 20-40 Sec 6°C/Sec Max. Ramp-Down Rate Time 25°C to Peak Temperature 8 min Max. Time 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 4 | MK-Q-B-P-D-110410-02-2 DSC8102 DSC8122 Programmable Low-Jitter Precision LVPECL Oscillator External Dimensions Package Dimensions units: mm[inch] 7.00 5 2.54 4 4 7.0 x 5.0 1.40 mm Plastic Package 5 6 1.10 5.00 2 3 3.70 1.80 3 2 1 2.80 0.85 No. 1 2 3 4 5 6 Pin terminal Enable nc GND Output Output VDD 5.0 x 3.2 mm Plastic Package 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 5 | MK-Q-B-P-D-110410-02-2 DSC8102 DSC8122 Programmable Low-Jitter Precision LVPECL Oscillator 3.2 x 2.5 mm Plastic Package 2.5 x 2.0 mm Plastic Package 2.5±0.05 [0.098±0.002] 0.825 [ .032 ] 0.9 [.035] REF 0.7±0.10 [0.028±0.004] 2.0±0.05 [0.079±0.002] 0.1 [.004] REF 0.375 [0.015] 0.65±0.05 [0.026±0.002] 0.25±0.05 [0.099±0.002] 0.85 [0.033] 0.70 [0.028] 0.65 [0.026] 0.25 [0.0098] Disclaimer: 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, Inc. Phone: +1 (408) 944-0800 ● ● 2180 Fortune Drive, Fax: +1 (408) 474-1000 San Jose, California 95131 ● Email: [email protected] ● ● USA www.micrel.com 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 6 | MK-Q-B-P-D-110410-02-2