DSC1124CE1-010.2400 Microchip

DSC1104/24 Low Jitter Precision HCSL Oscillator Features General Description Low RMS Phase Jitter: <1 ps (typ.) The DSC1104 and DSC1124 series of high performance oscillators utilizes a proven silicon MEMS High Stability: 10 ppm, 20 ppm, 25 ppm, technology to provide excellent jitter and stability over 50 ppm a wide range of supply voltages and temperatures. By Wide Temperature Range eliminating the need for quartz or SAW technology, - Industrial: 40C to +85C MEMS oscillators significantly enhance reliability and - Ext. Commercial: 20C to +70C accelerate product development, while meeting - Ext. Industrial: 40C to +105C stringent clock performance criteria for a variety of communications, storage, and networking applications. High Supply Noise Rejection: 50 dBc Wide Frequency Range: 2.3 MHz to 460 MHz DSC1104 has a standby feature allowing it to completely power down when EN pin is pulled low Small Industry Standard Footprints: whereas for DSC1124, only the outputs are disabled - 2.5 mm x 2.0 mm, 3.2 mm x 2.5 mm, when EN is low. Both oscillators are available in 5.0 mm x 3.2 mm, and 7.0 mm x 5.0 mm industry standard packages, including the small Excellent Shock and Vibration Immunity 2.5 mm x 2.0 mm, and are drop-in replacements for - Qualified to MIL-STD-883 standard 6-pin HCSL quartz crystal oscillators. High Reliability - 20x Better MTF than Quartz Oscillators Block Diagram Low Current Consumption Supply Range of 2.25V to 3.6V Standby and Output Enable Function Lead Free and RoHS Compliant Pin 1 Pin 6 TEMP SENSOR & ENABLE V DD COMPENSATION Applications CIRCUITRY Storage Area Networks Pin 2 Pin 5 - SATA, SAS, Fibre Channel NC OUTPUT MEMS DIVIDER PLL OSCILLATOR DRIVER Passive Optical Networks - EPON, 10G-EPON, GPON, 10G-PON Pin 3 Pin 4 Ethernet GND OUTPUT - 1G, 10GBASE-T/KR/LR/SR, and FCoE HD/SD/SDI Video and Surveillance TABLE 1: OUTPUT ENABLE MODES PCI Express: Gen 1 to Gen 4 Display Port EN Pin DSC1104 DSC1124 High Outputs Active Outputs Active NC Outputs Active Outputs Active Low Standby Outputs Disabled 2017-2019 Microchip Technology Inc. DS20005870B-page 1DSC1104/24 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings Supply Voltage ..........................................................................................................................................0.3V to +4.0V Input Voltage .................................................................................................................................... 0.3V to V + 0.3V DD ESD Protection (HBM) ............................................................................................................................................... 4 kV ESD Protection (MM) ............................................................................................................................................... 400V ESD Protection (CDM) ............................................................................................................................................ 1.5 kV Notice: Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational sections of this specification is not intended. Exposure to maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS Specifications: V = 3.3V T = +25C unless otherwise specified. DD A Parameters Sym. Min. Typ. Max. Units Conditions Supply Voltage (Note 1) V 2.25 3.6 V DD DSC1104, EN pin low, 0.095 Output is disabled Supply Current I mA DD DSC1124, EN pin low, 20 22 Output is disabled 10 Includes frequency variation 20 due to initial tolerance, Frequency Stability f ppm temp., and power supply 25 voltage 50 Aging f 5 ppm One year at +25C Y1 Start-up Time ( Note 2) t 5 ms T = +25C SU V 0.75 x V Input logic high IH DD Input Logic Levels V V 0.25 x V Input logic low IL DD Output Disable Time (Note 3) t 5 ns DA 5 ms DSC1104 Output Enable Time t EN 20 ns DSC1124 Enable Pull-Up Resistor R 40 k Pull-up resistor exists PU (Note 4) HCSL Outputs Supply Current I 40 42 mA Output Enabled, R = 50 DD L V 0.725 Output logic high, R = 50 OH L Output Logic Levels V V 0.1 Output logic low OL Peak-to-Peak Output Swing 750 mV Single-Ended Rise time, 20% to 80%,R = L t 200 400 r 50, C = 2 pF Output Transition Time L ps ( Note 3) Fall time, 20% to 80%,R = L t 200 f 50, C = 2 pF L Frequency f 2.3 460 MHz 0 Output Duty Cycle SYM 48 52 % Differential DS20005870B-page 2 2017-2019 Microchip Technology Inc.