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Microchip Technology DSC1103NI2-125.0000
-7.00-mm-x-5.00-mm.jpg)
- Part No.:
- DSC1103NI2-125.0000
- Manufacturer:
- Microchip Technology
- Category:
- Oscillators
- Package:
- 6-SMD, No Lead
- Datasheet:
-
DSC1103NI2-125.0000.pdf
- Description:
- MEMS OSC XO 125.0000MHZ LVDS SMD
- Quantity:
- Payment:
- Shipping:
Inventory:288
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Product details
Overview
DSC1103NI2-125.0000 from Microchip Technology is a low-jitter precision LVDS MEMS oscillator with standby enable functionality, ±25 ppm frequency stability over –40°C to +85°C, 125.0000 MHz output, and 2.25–3.63 V supply range. It delivers <1 ps RMS phase jitter (typ.), supports PCI Express Gen 3 and DisplayPort timing requirements, and uses a 7.0 mm × 5.0 mm CDFN package without center pad.
For engineers reviewing the DSC1103NI2-125.0000 datasheet, DSC1103NI2-125.0000 pinout, DSC1103NI2-125.0000 application, or DSC1103NI2-125.0000 equivalent, this page provides verified specifications, validated pin functions, confirmed MEMS-based timing performance, and real-world deployment context for high-speed serial interface clocking.
Technical Context
The DSC1103NI2-125.0000 integrates a silicon MEMS resonator with on-chip PLL and temperature compensation circuitry to achieve ±25 ppm stability across –40°C to +85°C. Its LVDS outputs deliver 350 mV single-ended swing with 200 ps rise/fall time (20%–80%) into 50 Ω.
It features an active-low EN pin enabling full standby mode (complete power-down), 5 ms start-up time to 100 ppm stability, and high supply noise rejection of –50 dBc at 100 kHz. The device operates within 2.25–3.63 V and draws ≤95 µA in standby.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency | 125.0000 MHz - precisely trimmed and factory-set; no external components required |
| Frequency Stability | ±25 ppm - covers initial tolerance, temperature drift (–40°C to +85°C), and supply voltage variation |
| RMS Phase Jitter | <1 ps (typ.) - integrated from 12 kHz to 20 MHz; meets PCI Express Gen 3 jitter budget |
| Output Interface | LVDS - differential 350 mV swing, 48–52% duty cycle, compatible with standard LVDS receivers |
| Supply Voltage | 2.25 V to 3.63 V - supports modern low-voltage I/O domains; requires 0.1 µF bypass capacitor on VDD |
| Standby Current | ≤95 µA - achieved when EN = low; enables ultra-low-power system sleep states |
| Start-up Time | 5 ms - time to reach 100 ppm frequency accuracy after VDD applied and EN asserted high |
Pinout & Package
Package: 6-lead CDFN (7.0 mm × 5.0 mm, no center pad), RoHS-compliant, moisture sensitivity level (MSL) 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (EN) | Enable input | Active-low control: pulls device into full standby (power-down) when low; outputs disabled and current minimized |
| 2 (NC) | No-connect terminal | Must remain unconnected; no internal connection or function |
| 3 (GND) | Ground reference | Primary return path for supply and output currents; must be low-impedance to minimize noise coupling |
| 4 (OUT+) | LVDS output positive | Differential clock signal positive leg; requires 100 Ω termination to VDD/2 for proper LVDS bias |
| 5 (OUT–) | LVDS output negative | Differential clock signal negative leg; complements OUT+ for common-mode noise rejection |
| 6 (VDD) | Power supply input | 2.25–3.63 V supply; requires local 0.1 µF ceramic bypass capacitor placed adjacent to pin |
Key Features
| Feature | Design Value |
|---|---|
| MEMS-based resonator | Eliminates quartz fragility and aging drift; achieves 20× better mean-time-to-failure than quartz oscillators |
| High supply noise rejection | –50 dBc at 100 kHz - maintains timing integrity in noisy power environments (e.g., near switching regulators) |
| Wide operating temperature | –40°C to +85°C - qualified for industrial-grade embedded systems and networking equipment |
| Shock/vibration immunity | Qualified per MIL-STD-883 - suitable for transportation, aerospace, and ruggedized infrastructure applications |
| LVDS output compliance | Meets ANSI TIA/EIA-644-A - ensures interoperability with FPGA transceivers, SerDes PHYs, and ASIC clock inputs |
Applications
| PCI Express Gen 3 Clocking | DisplayPort 1.2 Timing Source |
|---|---|
Use Scenario: Providing reference clock to PCIe Gen 3 root complex or endpoint controller in server backplanes or GPU accelerators. IC Role / Device Role / Timing Role: Primary low-jitter system clock source meeting PCIe Gen 3 ±300 ppm total jitter requirement at 100 MHz differential (derived from 125 MHz). Use Value: Enables reliable 8 GT/s link training and stable data transfer without retransmission due to clock-induced bit errors. |
Use Scenario: Driving DisplayPort 1.2 source timing in digital signage controllers or video processing units. IC Role / Device Role / Timing Role: LVDS clock generator synchronized to DP AUX channel configuration; supplies pixel clock for 4K@60Hz (125 MHz nominal). Use Value: Guarantees sub-1 ps jitter margin for clean eye diagrams and reduced bit error rate in high-resolution video streams. |
| SATA/SAS Storage Controller Clock | Fibre Channel 8G/16G Timing |
Use Scenario: Reference clock for SATA III (6 Gbps) or SAS-3 (12 Gbps) host bus adapters in enterprise storage arrays. IC Role / Device Role / Timing Role: Low-phase-noise 125 MHz oscillator feeding serializer/deserializer PLLs; supports spread-spectrum clocking compatibility. Use Value: Reduces electromagnetic interference (EMI) and improves signal integrity margin on high-density backplane traces. |
Use Scenario: Timing source for Fibre Channel 8G/16G line cards in SAN switches and directors. IC Role / Device Role / Timing Role: Precision LVDS clock aligned to FC-PI-5/FC-PI-6 jitter masks; operates continuously in extended thermal environments. Use Value: Maintains deterministic latency and frame synchronization across multi-rack storage networks under thermal stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-jitter LVDS oscillator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DSC1103CI2-125.0000 | Same electrical specs, but 3.2 mm × 2.5 mm VDFN package with center pad; higher thermal conductivity | Better suited for space-constrained PCBs with aggressive thermal management needs | Select when board area is limited and thermal dissipation >150 mW is required |
| DSC1123NI2-125.0000 | Identical package and stability, but EN pin disables outputs only (not full standby); 20 ns enable time vs. 5 ms for DSC1103NI2-125.0000 | Preferred for applications requiring fast clock gating without power-state transitions | Choose when rapid output enable/disable cycles are needed, not full power-down |
Compared with DSC1103NI2-125.0000, the CI2 variant saves board space but trades thermal headroom for footprint reduction, while the DSC1123NI2 variant sacrifices deep power savings for microsecond-level output control-making each optimal for distinct system-level power and timing architecture decisions.
Availability
DSC1103NI2-125.0000 is available at Aetrix Electronics and suitable for PCI Express Gen 3 clocking, DisplayPort 1.2 timing, and Fibre Channel 8G/16G applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for DSC1103NI2-125.0000 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology Inc. is a global semiconductor company specializing in microcontrollers, analog devices, and timing solutions, with design centers and manufacturing facilities across the Americas, Asia, and Europe.
The DSC1103NI2-125.0000 belongs to Microchip's DSC1103 MEMS oscillator product line, engineered for high-reliability, low-jitter clock generation in communications, storage, and high-speed serial interface applications where quartz alternatives fail under shock, vibration, or thermal cycling.
FAQ
What is the operating temperature range for the DSC1103NI2-125.0000?
The DSC1103NI2-125.0000 is rated for industrial operation from –40°C to +85°C, as indicated by the "I" in its part number suffix. This range includes full specification compliance for frequency stability (±25 ppm), jitter (<1 ps RMS), and start-up time (5 ms) across the entire span, validated per Microchip DS20005745C.
Does the DSC1103NI2-125.0000 require external load capacitors?
No, the DSC1103NI2-125.0000 is a fully integrated MEMS oscillator and requires no external load capacitors. It only needs a 0.1 µF ceramic bypass capacitor on the VDD pin, placed as close as possible to pin 6, per the recommended layout in DS20005745C-page 7.
How does the EN pin function on the DSC1103NI2-125.0000?
The EN pin on the DSC1103NI2-125.0000 is active-low: pulling it low places the device into full standby mode, reducing supply current to ≤95 µA and disabling all internal circuitry. When high or floating, the oscillator operates normally with LVDS outputs enabled.
Is the DSC1103NI2-125.0000 pin-compatible with quartz-based LVDS oscillators?
Yes, the DSC1103NI2-125.0000 is a drop-in replacement for standard 6-pin LVDS crystal oscillators in the same 7.0 mm × 5.0 mm CDFN footprint. Its pinout (EN, NC, GND, OUT+, OUT–, VDD) matches industry-standard LVDS oscillator layouts, requiring no PCB redesign.
What is the maximum supply voltage the DSC1103NI2-125.0000 can tolerate?
The absolute maximum supply voltage for the DSC1103NI2-125.0000 is +4.0 V, per the Absolute Maximum Ratings table in DS20005745C-page 2. However, functional operation is guaranteed only between 2.25 V and 3.63 V; exceeding 3.63 V may cause permanent damage or parametric failure.
DSC1103NI2-125.0000 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- DSC1103
- Package/Case:
- 6-SMD, No Lead
- Packaging:
- Tube
- Product Status:
- Active
- Base Resonator:
- MEMS
- Type:
- XO (Standard)
- Frequency:
- 125 MHz
- Function:
- Standby (Power Down)
- Output:
- LVDS
- Voltage - Supply:
- 2.25V ~ 3.63V
- Frequency Stability:
- ±25ppm
- Absolute Pull Range (APR):
- -
- Operating Temperature:
- -40°C ~ 85°C
- Spread Spectrum Bandwidth:
- -
- Current - Supply (Max):
- 32mA
- Ratings:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-VDFN (3.2x2.5)
- Size / Dimension:
- 0.276" L x 0.197" W (7.00mm x 5.00mm)
- Height - Seated (Max):
- 0.035" (0.90mm)
DSC1103NI2-125.0000 FAQ
1.How can I place an order for DSC1103NI2-125.0000 through Aetrix?
Please submit a Request for Quotation (RFQ) for DSC1103NI2-125.0000 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DSC1103NI2-125.0000 reliable?
The price and inventory of DSC1103NI2-125.0000 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DSC1103NI2-125.0000 is usually 5 days.
3.What payment methods are accepted for DSC1103NI2-125.0000?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DSC1103NI2-125.0000 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DSC1103NI2-125.0000?
DSC1103NI2-125.0000 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DSC1103NI2-125.0000 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DSC1103NI2-125.0000?
For technical support, including DSC1103NI2-125.0000 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DSC1103NI2-125.0000 requirements.
6.How does Aetrix verify that DSC1103NI2-125.0000 is sourced from the original manufacturer or authorized distributors?
All DSC1103NI2-125.0000 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DSC1103NI2-125.0000 meets industry standards.
7.What is the process for return or replacement of DSC1103NI2-125.0000?
All DSC1103NI2-125.0000 units undergo pre-shipment inspection (PSI). If there is an issue with DSC1103NI2-125.0000, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DSC1103NI2-125.0000 part is unused and in its original packaging.
Return procedure for DSC1103NI2-125.0000:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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