DSC2222 Datasheet | Discera

Description The DSC2122 and DSC2222 series of programmable, high-performance dual LVPECL oscillators utilizes a proven silicon MEMS technology to provide excellent jitter and stability while incorporating high output frequency flexibility. DSC2122 and DSC2222 allow the user to independently modify the frequency of each output using I2C or SPI interface, respectively. User can also select from two pre-programmed default output frequencies using the control pin. DSC2122 and DSC2222 are packaged in 14pin 3.2x2.5 mm QFN packages and available in temperature grades from Ext. mercial to Industrial. Block Diagram Features Low RMS Phase Jitter: <1 ps (typ) High Stability: ±50 ppm Wide Temperature Range o Industrial: -40° to 85° C o Ext. mercial: -20° to 70° C High Supply Noise Rejection: -50 d Bc Two Independent LVPECL Outputs I2C/SPI Programmable Frequencies Short Lead Times: 2 Weeks Wide Frequency Range: o LVPECL Output: 2.3 to 460 MHz Miniature Footprint of 3.2x2.5mm 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 & Ro HS pliant Pin # 3 5 6 7 DSC2122 (I2C) NC SDA SCL CS_bar DSC2222 (SPI) SCLK MOSI MISO SS 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 FCo E HD/SD/SDI Video & Surveillance PCI Express _____________________________________________________________________________________________________________________________ _________________ DSC2122 DSC2222 Page 1 MK-Q-B-P-D-12050105 DSC2122 DSC2222 Low-Jitter I2C/SPI Programmable Dual LVPECL Oscillator Pin Description Pin No. 1 2 8 9 10 11 12 13 14 Pin Name Enable NC NC SCLK GND SDA MOSI SCL MISO CS_bar SS Output1+ Output1Output 2Output 2+ VDD2 VDD FS Pin Type I NA NA I Power I I O I I O O O O Power Power I Description Enables outputs when high and disables when low Leave...