DSC511-03 MICREL | Alldatasheet
Document overview
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Technical content
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 Two Independent CMOS Outputs Short Lead Times: 2 Weeks Wide Freq. Range: o CMOS Output: 2.3 to 170 MHz Miniature Footprint of 2.5 x 2.0 mm Excellent Shock & Vibration Immunity o Qualified to MIL-STD-883 High Reliability o 20x better MTF than quartz oscillators Supply Range of 2.25 to 3.6 V Lead Free & RoHS Compliant
DSC511-03 Page 2 MK-QB-P-D-130103-01-1 DSC511-03 Crystal-less Two Output PCIe Clock Generator Specifications (Unless specified otherwise: T=25° C, VDD =3.3V) Notes: 1. Pin 4 VDD should be filtered with 0.01uf capacitor. 2. Output is enabled if Enable pad is floated or not connected. 3. tsu is time to 100PPM stable output frequency after VDD is applied and outputs are enabled. 4. Output Waveform and Test Circuit figures below define the parameters. 5. Period Jitter includes crosstalk from adjacent output. Absolute Maximum Ratings Item Min Max Unit Condition 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 40sec max. ESD HBM MM CDM 4000 400 1500 V Parameter Condition Min. Typ. Max. Unit Supply Voltage1 VDD 2.25 3.6 V Supply Current IDD EN pin low – outputs are disabled 21 23 mA Supply Current2 IDD EN pin high – outputs are enabled CL=15pF, FO1=FO2=125 MHz 32 mA Frequency Stability Δf Includes frequency variations due to initial tolerance, temp. and power supply voltage ±10 ±25 ±50 ppm Aging Δf 1 year @25°C ±5 ppm Startup Time3 tSU T=25°C 5 ms Input Logic Levels Input logic high Input logic low VIH VIL 0.75xVDD 0.25xVDD V Output Disable Time4 tDA 5 ns Output Enable Time tEN 20 ns Pull-Up Resistor2 Pull-up exists on all digital IO 40 kΩ Output Logic Levels Output logic high Output logic low VOH VOL I=±6mA 0.9xVDD 0.1xVDD V Output Transition time4 Rise Time Fall Time tR tF 20% to 80% CL=15pf 1.1 1.4 ns Frequency f0 Commercial/Industrial temp range Automotive temp range 2.3 170
100 MHz
Output Duty Cycle SYM 45 55 % Period Jitter5 JPER FO1=FO2=125 MHz 3 psRMS Integrated Phase Noise JCC 200kHz to 20MHz @ 125MHz 100kHz to 20MHz @ 125MHz 12kHz to 20MHz @ 125MHz 0.3 0.38 1.7 psRMS
DSC511-03 Page 3 MK-QB-P-D-130103-01-1 DSC511-03 Crystal-less Two Output PCIe Clock Generator Solder Reflow Profile OE Function and Output Waveform: LVCMOS
6 QFN 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 Peak Temperature 255-260°C Time within 5°C of actual Peak 20-40 Sec Ramp-Down Rate 6°C/Sec Max. Time 25°C to Peak Temperature 8 min Max. VOH VOL VIL 1/fo Output Enable tDA tEN tF tR VIH 675 mV 60-150 Sec 20-40 Sec 60-180 Sec 8 min max Pre heat Reflow Cool Time Temperature (°C) 3C/Sec Max. 6C/Sec Max. 200°C 217°C 150°C 25°C 260°C 3C/Sec Max. 60-150 Sec 20-40 Sec 60-180 Sec 8 min max Pre heat Reflow Cool Time Temperature (°C) 3C/Sec Max. 6C/Sec Max. 200°C 217°C 150°C 25°C 260°C 60-150 Sec 20-40 Sec 60-180 Sec 8 min max Pre heat Reflow Cool Time Temperature (°C) 3C/Sec Max. 6C/Sec Max. 200°C 217°C 150°C 25°C 260°C 3C/Sec Max.
DSC511-03 Page 4 MK-QB-P-D-130103-01-1 DSC511-03 Crystal-less Two Output PCIe Clock Generator
Ordering Information
Table 2 lists the standard default frequency configurations and the associated ordering information to be used in conjunction with the ordering code. Customer defined combinations are available. Table 2. Pre-programmed output frequency pairs
DSC511-03 Page 5 MK-QB-P-D-130103-01-1 DSC511-03 Crystal-less Two Output PCIe Clock Generator Package Dimensions 1 2 3 46 5 123 4 65 0.825 [0.032] 0.765±0.1
0.535 REF
0.6 REF
0.85±0.05 0.85
0.7 REF
0.375 Via to Power Trace Via to Ground Plane No. Pin Terminal
1 Enable
2 N/C
3 Ground
5 CLK1
6 VDD
Units: mm [ inches] RECOMMENDED SOLDER PAD LAYOUT Units: mm [ inches] 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 Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. MICREL, Inc. ● 2180 Fortune Drive, San Jose, California 95131 ● USA Phone: +1 (408) 944-0800 ● Fax: +1 (408) 474-1000 ● Email: hbwhelp@micrel.com ● www.micrel.com