Overview
The LMK61A2-125M00SIAR is an ultra-low jitter oscillator produced by Texas Instruments. This device is designed to generate commonly used reference clock frequencies and is pre-programmed in the factory to support various output formats. It operates from a single 3.3 V ± 5% supply and features internal power conditioning for excellent power supply ripple rejection (PSRR), reducing the complexity and cost of the power delivery network. The oscillator is housed in a 6-pin QFM (SIA) package, compatible with the industry standard 7050 XO package, and operates within an industrial temperature range of –40°C to +85°C.
Key Specifications
| Parameter | Value |
|---|---|
| Frequency | 125 MHz |
| Frequency Tolerance | ±50 ppm |
| Output Formats | LVPECL up to 1 GHz, LVDS up to 900 MHz, HCSL up to 400 MHz |
| Jitter | 90 fs RMS Typical (Fout > 100 MHz) |
| PSRR | –70 dBc |
| Operating Voltage | 3.3 V ± 5% |
| Operating Temperature Range | –40°C to +85°C |
| Package Type | QFM (SIA) with 6 pins |
| Package Dimensions | 7 mm × 5 mm |
Key Features
- Ultra-low noise and high performance
- Low jitter: 90 fs RMS typical for frequencies above 100 MHz
- Robust supply noise immunity with PSRR of –70 dBc
- Supported output formats include LVPECL up to 1 GHz, LVDS up to 900 MHz, and HCSL up to 400 MHz
- Total frequency tolerance of ±50 ppm
- Single 3.3 V ± 5% operating voltage
- Industrial temperature range of –40°C to +85°C
- Compact 7 mm × 5 mm 6-pin package, pin-compatible with industry standard 7050 XO package
Applications
The LMK61A2-125M00SIAR is suitable for a variety of applications requiring high-performance and low-jitter clock signals. These include:
- Telecommunication systems
- Data centers and cloud infrastructure
- High-speed data acquisition and test equipment
- Networking and storage systems
- Medical imaging and diagnostic equipment
Q & A
- What is the operating frequency of the LMK61A2-125M00SIAR?
The operating frequency of the LMK61A2-125M00SIAR is 125 MHz.
- What are the supported output formats for this oscillator?
The supported output formats include LVPECL up to 1 GHz, LVDS up to 900 MHz, and HCSL up to 400 MHz.
- What is the typical jitter performance of the LMK61A2-125M00SIAR?
The typical jitter performance is 90 fs RMS for frequencies above 100 MHz.
- What is the power supply voltage for this device?
The device operates from a single 3.3 V ± 5% supply.
- What is the operating temperature range of the LMK61A2-125M00SIAR?
The operating temperature range is –40°C to +85°C.
- What is the package type and dimensions of the LMK61A2-125M00SIAR?
The device is housed in a 6-pin QFM (SIA) package with dimensions of 7 mm × 5 mm.
- What is the frequency tolerance of the LMK61A2-125M00SIAR?
The total frequency tolerance is ±50 ppm.
- What is the PSRR of the LMK61A2-125M00SIAR?
The PSRR is –70 dBc, indicating robust supply noise immunity.
- Is the LMK61A2-125M00SIAR pin-compatible with other industry standard packages?
Yes, it is pin-compatible with the industry standard 7050 XO package.
- What are some typical applications for the LMK61A2-125M00SIAR?
Typical applications include telecommunication systems, data centers, high-speed data acquisition, networking and storage systems, and medical imaging equipment.
