Product Overview
The DSC1103 and DSC1123 series are high-performance silicon MEMS oscillators offering excellent jitter and stability across a wide range of supply voltages and temperatures. These oscillators leverage MEMS technology to enhance reliability and accelerate product development, providing a superior alternative to quartz or SAW-based devices. They are designed to meet stringent clock performance criteria for various communications, storage, and networking applications. The DSC1103 features a standby mode for complete power-down, while the DSC1123 disables only the outputs when the Enable pin is low. Both are available in industry-standard, small footprints and are drop-in replacements for standard 6-pin LVDS crystal oscillators.
Product Attributes
- Brand: Microchip Technology Inc.
- Certifications: MIL-STD-883 (Shock and Vibration Immunity), RoHS-Compliant, Lead Free
Technical Specifications
| Parameter | Symbol | Min | Typ | Max | Units | Conditions |
|---|---|---|---|---|---|---|
| ELECTRICAL CHARACTERISTICS | ||||||
| Supply Voltage | VDD | 2.25 | 3.63 | V | ||
| Supply Current (DSC1103, EN low) | IDD | 0.095 | mA | All outputs disabled. | ||
| Supply Current (DSC1123, EN low) | IDD | 20 | 22 | mA | All outputs disabled. | |
| Frequency Stability | f | 10 | ppm | Includes frequency variations due to initial tolerance, temp., and power supply voltage. | ||
| Frequency Stability | f | 20 | ppm | Includes frequency variations due to initial tolerance, temp., and power supply voltage. | ||
| Frequency Stability | f | 25 | ppm | Includes frequency variations due to initial tolerance, temp., and power supply voltage. | ||
| Frequency Stability | f | 50 | ppm | Includes frequency variations due to initial tolerance, temp., and power supply voltage. | ||
| Aging - First Year | fY1 | 5 | ppm | One year at +25C | ||
| Aging - After First Year | fY2+ | <1 | ppm/yr | Year two and beyond at +25C | ||
| Start-up Time | tSU | 5 | ms | T = +25C, time to 100 ppm stable output frequency after VDD is applied and outputs are enabled. | ||
| Input Logic High | VIH | 0.75 x VDD | V | Input logic high | ||
| Input Logic Low | VIL | 0.25 x VDD | Input logic low | |||
| Output Disable Time | tDA | 5 | ns | |||
| Output Enable Time (DSC1103) | tEN | 5 | ms | |||
| Output Enable Time (DSC1123) | tEN | 20 | ns | |||
| Enable Pull-Up Resistor | RPU | 40 | k | Pull-up resistor exist. | ||
| Supply Current (LVDS Outputs) | IDD | 29 | 32 | mA | Output enabled, RL = 100 | |
| Output Offset Voltage | VOS | 1.125 | 1.4 | V | R = 100 | |
| Differential Delta Offset Voltage | VOS | 50 | mV | |||
| Peak-to-Peak Output Swing | VPP | 350 | mV | Single-Ended | ||
| Output Transition Rise/Fall Time | tR/tF | 200 | ps | 20% to 80%, RL = 50, CL = 2 pF | ||
| Frequency | f0 | 2.3 | 460 | MHz | 20C to +70C & 40C to +85C | |
| Frequency | f0 | 3.3 | 460 | MHz | 40C to +105C | |
| Output Duty Cycle | SYM | 48 | 52 | % | ||
| Differential Period Jitter | JPER | 2.5 | psRMS | |||
| Integrated Phase Noise | JPH | 0.28 | psRMS | 200 kHz to 20 MHz @156.25 MHz | ||
| Integrated Phase Noise | JPH | 0.4 | psRMS | 100 kHz to 20 MHz @156.25 MHz | ||
| Integrated Phase Noise | JPH | 1.7 | 2 | psRMS | 12 kHz to 20 MHz @156.25 MHz | |
| TEMPERATURE SPECIFICATIONS | ||||||
| Operating Temperature Range | TA | 20 | +70 | C | Ordering Option E | |
| Operating Temperature Range | TA | 40 | +85 | C | Ordering Option I | |
| Operating Temperature Range | TA | 40 | +105 | C | Ordering Option L | |
| Junction Temperature | TJ | +150 | C | |||
| Storage Temperature Range | TS | 55 | +150 | C | ||
| Soldering Temperature | +260 | C | 40 sec. max. | |||
| APPLICATIONS | ||||||
| Application Scenarios | Storage Area Networks (SATA, SAS, Fibre Channel), Passive Optical Networks (EPON, 10G-EPON, GPON, 10G-PON), HD/SD/SDI Video and Surveillance, PCI Express Gen 1/Gen 2/Gen 3, Display Port. | |||||
| PIN DESCRIPTIONS | ||||||
| Pin Name | Description | Pin Numbers (Various Packages) | ||||
| EN | Enable | 1 | ||||
| NC | Do not connect | 2 | ||||
| GND | Ground | 3 | ||||
| OUT+ | LVDS clock output + | 4 | ||||
| OUT- | LVDS clock output | 5 | ||||
| VDD | Supply voltage | 6 | ||||
| PAD | Tie to Ground | PAD | ||||
| OUTPUT ENABLE MODES | ||||||
| EN Pin | DSC1103 | DSC1123 | ||||
| High | Outputs Active | Outputs Active | ||||
| NC | Outputs Active | Outputs Active | ||||
| Low | Standby | Outputs Disabled | ||||
2410122030_MICROCHIP-DSC1103CI1-200-0000_C1669956.pdf
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