Overview
The LMK04826BISQX/NOPB is a high-performance clock jitter cleaner developed by Texas Instruments. It is part of the LMK0482x family, which is renowned for its ultra-low noise and compliance with JEDEC JESD204B standards. This device is designed to provide flexible and high-performance clocking solutions, making it ideal for various applications requiring precise clock signals.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 64-Pin WQFN (NKD) |
| Operating Temperature Range | -40°C to 85°C |
| Maximum Clock Output Frequency | 3.1 GHz |
| VCO0 Frequency Range | 1840 MHz to 1970 MHz |
| VCO1 Frequency Range | 2440 MHz to 2505 MHz |
| RMS Jitter (12 kHz to 20 MHz) | 88 fs |
| RMS Jitter (100 Hz to 20 MHz) | 91 fs |
| Noise Floor at 245.76 MHz | -162.5 dBc/Hz |
| Supply Voltage | 3.15 V to 3.45 V |
| PCB Temperature (Measured at Thermal Pad) | Up to 105°C |
Key Features
- JEDEC JESD204B Support
- Ultra-Low RMS Jitter: 88 fs (12 kHz to 20 MHz) and 91 fs (100 Hz to 20 MHz)
- Low Noise Floor: -162.5 dBc/Hz at 245.76 MHz
- Up to 14 Differential Device Clocks from PLL2
- Up to 7 SYSREF Clocks
- Programmable Outputs: LVPECL, LVDS, HSDS, LCPECL from PLL2 and LVPECL, LVDS, 2xLVCMOS from PLL1
- Dual Loop PLLatinum™ PLL Architecture
- Up to 3 Redundant Input Clocks with Automatic and Manual Switch-Over Modes
- Hitless Switching and LOS (Loss of Signal) Detection
- Integrated Low-Noise Crystal Oscillator Circuit
- Holdover Mode When Input Clocks are Lost
- Precision Digital Delay and 25-ps Step Analog Delay
- Multi-Mode: Dual PLL, Single PLL, and Clock Distribution
Applications
- Wireless Infrastructure
- Data Converter Clocking
- Networking, SONET/SDH, DSLAM
- Medical, Video, Military, Aerospace
- Test and Measurement
Q & A
- What is the primary function of the LMK04826BISQX/NOPB?
The primary function is to act as a high-performance clock jitter cleaner, providing ultra-low noise clock signals compliant with JEDEC JESD204B standards.
- What is the operating temperature range of the LMK04826BISQX/NOPB?
The operating temperature range is -40°C to 85°C.
- What are the frequency ranges of VCO0 and VCO1 in the LMK04826BISQX/NOPB?
VCO0 operates between 1840 MHz to 1970 MHz, and VCO1 operates between 2440 MHz to 2505 MHz.
- What is the maximum clock output frequency of the LMK04826BISQX/NOPB?
The maximum clock output frequency is 3.1 GHz.
- What types of output signals can the LMK04826BISQX/NOPB generate?
The device can generate LVPECL, LVDS, HSDS, LCPECL, and LVCMOS output signals.
- Does the LMK04826BISQX/NOPB support redundant input clocks?
Yes, it supports up to 3 redundant input clocks with automatic and manual switch-over modes.
- What is the noise floor specification of the LMK04826BISQX/NOPB at 245.76 MHz?
The noise floor is -162.5 dBc/Hz at 245.76 MHz.
- What are some of the key applications for the LMK04826BISQX/NOPB?
Key applications include wireless infrastructure, data converter clocking, networking, medical, video, military, aerospace, and test and measurement.
- Does the LMK04826BISQX/NOPB support holdover mode?
Yes, it supports holdover mode when input clocks are lost.
- What is the supply voltage range for the LMK04826BISQX/NOPB?
The supply voltage range is 3.15 V to 3.45 V.
