Overview
The SI5341B-D-GMR is a highly versatile and ultra-low jitter clock generator produced by Skyworks Solutions Inc. This device combines a wide-band PLL with Skyworks' proprietary MultiSynth™ fractional synthesizer technology, enabling it to generate any-frequency, any-output clock signals. The SI5341B is particularly notable for its ability to support 10 differential output drivers, which can be independently configured as differential or LVCMOS outputs. This flexibility makes it an ideal solution for a wide range of applications requiring precise and stable clock signals.
Key Specifications
| Specification | Value |
|---|---|
| Maximum Input Frequency | 750 MHz |
| Maximum Output Frequency | 350 MHz |
| Number of Outputs | 10 |
| Output Types | CML, HCSL, LVCMOS, LVDS, LVPECL |
| Operating Supply Voltage | 1.8 V, 3.3 V |
| Operating Supply Current | 115 mA, 120 mA |
| Minimum Operating Temperature | -40 °C |
| Maximum Operating Temperature | +85 °C |
| Package Type | 64-QFN |
| Jitter | 90 fs (phase jitter) |
| Mounting Style | SMD/SMT |
Key Features
- Ultra-low jitter performance with a phase jitter of 0.09 ps.
- Supports Integer and Fractional frequency synthesis modes.
- Four reference inputs for flexible clock generation.
- 10 differential output drivers, configurable as differential or LVCMOS outputs.
- Output signal format is fully programmable, compatible with LVDS, LVPECL, and other signal formats.
- Differential output drivers support both ac-coupled and dc-coupled terminations.
- Output enable/disable feature through the OEb pin or register control.
- Synchronous or asynchronous output disable configuration.
- Interrupt pin (INTRb) for status register changes.
- Pb-free, RoHS-6 compliant.
Applications
The SI5341B-D-GMR is suitable for a variety of applications requiring high precision and low jitter clock signals, including:
- Telecommunications and networking equipment.
- Data centers and cloud infrastructure.
- High-speed data acquisition systems.
- Wireless base stations and radio equipment.
- Medical imaging and diagnostic equipment.
- Industrial control and automation systems.
Q & A
- What is the maximum input frequency of the SI5341B-D-GMR?
The maximum input frequency is 750 MHz.
- How many output drivers does the SI5341B-D-GMR support?
The device supports 10 differential output drivers.
- What are the supported output signal formats?
The device supports CML, HCSL, LVCMOS, LVDS, and LVPECL output signal formats.
- What is the operating temperature range of the SI5341B-D-GMR?
The operating temperature range is from -40 °C to +85 °C.
- Is the SI5341B-D-GMR RoHS compliant?
Yes, the device is Pb-free and RoHS-6 compliant.
- How can the output drivers be enabled or disabled?
The output drivers can be enabled or disabled through the OEb pin or register control.
- What is the phase jitter performance of the SI5341B-D-GMR?
The phase jitter performance is 0.09 ps.
- Can the SI5341B-D-GMR be programmed via an interface?
Yes, the device can be programmed via an I2C interface using the ClockBuilder Pro software utility.
- Is there an evaluation kit available for the SI5341B-D-GMR?
Yes, the Si5341-D-EVB evaluation kit is available for hands-on performance evaluation.
- What is the typical operating supply current of the SI5341B-D-GMR?
The typical operating supply current is 115 mA to 120 mA.
