Product Overview
The DSC1101 and DSC1121 series are high-performance silicon MEMS oscillators offering excellent jitter and stability across a wide range of supply voltages and temperatures. These oscillators replace traditional quartz or SAW technologies, enhancing reliability and accelerating product development. They are suitable for demanding clock performance requirements in communications, storage, and networking applications. The DSC1101 features a standby mode for complete power-down, while the DSC1121 disables only the outputs when the EN pin is low. Both are available in industry-standard packages and are direct replacements for 4-pin CMOS quartz crystal oscillators.
Product Attributes
- Brand: Microchip Technology Inc.
- Origin: Silicon MEMS technology
- Certifications: RoHS Compliant, Qualified to MIL-STD-883
Technical Specifications
| Parameter | DSC1101/21 | Conditions |
| Low RMS Phase Jitter | < 1 ps (typ.) | |
| High Stability | ±10 ppm, ±20 ppm, ±25 ppm, ±50 ppm | |
| Wide Temperature Range | - Automotive: –55°C to +125°C - Ext. Industrial: –40°C to +105°C - Industrial: –40°C to +85°C - Commercial: –20°C to +70°C | |
| High Supply Noise Rejection | -50 dBc | |
| Wide Frequency Range | 2.3 MHz to 170 MHz | CL = 15 pF |
| Supply Range | 2.25V to 3.6V | |
| Current Consumption (Output Enabled) | 20-22 mA (DSC1121) 31-35 mA (DSC1101) | CL = 15 pF, F0 = 100 MHz |
| Current Consumption (Standby/Output Disabled) | 0.095 mA (typ.) | EN pin low |
| Startup Time | 5 ms (typ.) | T = 25°C |
| Output Enable Time | 5 ms (typ.) | DSC1101 |
| Output Disable Time | 20 ns (typ.) | DSC1121 |
| Rise Time | 1.1 ns (typ.) | 20% to 80%, CL = 15 pF |
| Fall Time | 1.3 ns (typ.) | 20% to 80%, CL = 15 pF |
| Output Duty Cycle | 45% - 55% | |
| Period Jitter | 3 psRMS (typ.) | FOUT = 125 MHz |
| Integrated Phase Noise | 0.3 psRMS (typ.) | 200 kHz to 20 MHz @ 125 MHz |
| Small Industry Standard Footprints | 2.5 mm x 2.0 mm, 3.2 mm x 2.5 mm, 5.0 mm x 3.2 mm, 7.0 mm x 5.0 mm | |
| High Reliability | 20x Better MTF than Quartz Oscillators | |
| Output Enable Modes | DSC1101: Standby (Low), Output Active (High) DSC1121: Output Disabled (Low), Output Active (High) |
Applications
- Storage Area Networks (SATA, SAS, Fibre Channel)
- Passive Optical Networks (EPON, 10G-EPON, GPON, 10G-PON)
- Ethernet (1G, 10GBASE-T/KR/LR/SR, and FCoE)
- HD/SD/SDI Video and Surveillance
- PCI Express
- Display Port
2410311915_MICROCHIP-DSC1101AM2-PROG_C6022218.pdf
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