Overview
The LMK04828BISQ/NOPB, produced by Texas Instruments, is an ultra-low-noise JESD204B compliant clock jitter cleaner. It is part of the LMK0482x family, which is recognized as the industry's highest performance clock conditioner. This device is designed to provide high-performance clocking solutions with advanced features such as dual loop PLLatinum™ PLL architecture, integrated low-noise VCOs, and precision digital and analog delay capabilities. It is particularly suited for applications requiring high clock accuracy and stability, including JESD204B converters and traditional clocking systems.
Key Specifications
| Specification | Value |
|---|---|
| Package | WQFN (NKD) with 64 pins |
| Operating Temperature Range | -40°C to 85°C |
| Maximum Clock Output Frequency | 3.1 GHz |
| 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 |
| Output Types from PLL2 | LVPECL, LVDS, HSDS, LCPECL |
| Output Types from PLL1 | LVPECL, LVDS, 2xLVCMOS |
| Voltage Operation | 3.15-V to 3.45-V |
| Package Dimensions | 9.0 mm × 9.0 mm × 0.8 mm |
Key Features
- JEDEC JESD204B Support
- Ultra-Low RMS Jitter: 88 fs (12 kHz to 20 MHz) and 91 fs (100 Hz to 20 MHz)
- Up to 14 Differential Device Clocks from PLL2 and up to 7 SYSREF Clocks
- Dual Loop PLLatinum™ PLL Architecture
- Integrated Low-Noise Crystal Oscillator Circuit and Holdover Mode
- Automatic and Manual Switch-Over Modes with Hitless Switching and LOS
- Precision Digital Delay and 25-ps Step Analog Delay
- Multi-Mode: Dual PLL, Single PLL, and Clock Distribution
- Supports 105°C PCB Temperature (Measured at Thermal Pad)
Applications
The LMK04828BISQ/NOPB is ideal for various high-performance clocking applications, including:
- JESD204B converters and other logic devices requiring precise clock signals
- Traditional clocking systems that demand high accuracy and stability
- Industrial and commercial systems where robust clock performance is critical
- Telecommunication and data communication systems
- High-speed data acquisition and processing systems
Q & A
- What is the primary function of the LMK04828BISQ/NOPB?
The primary function is to act as an ultra-low-noise JESD204B compliant clock jitter cleaner. - What is the maximum clock output frequency of the LMK04828BISQ/NOPB?
The maximum clock output frequency is 3.1 GHz. - What types of output signals can the LMK04828BISQ/NOPB generate?
The device can generate LVPECL, LVDS, HSDS, LCPECL, and LVCMOS output signals. - What is the operating temperature range of the LMK04828BISQ/NOPB?
The operating temperature range is -40°C to 85°C. - Does the LMK04828BISQ/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 of the LMK04828BISQ/NOPB at 245.76 MHz?
The noise floor is -162.5 dBc/Hz at 245.76 MHz. - Can the LMK04828BISQ/NOPB operate in different modes?
Yes, it supports multi-mode operation including dual PLL, single PLL, and clock distribution modes. - What is the package type and pin count of the LMK04828BISQ/NOPB?
The package type is WQFN (NKD) with 64 pins. - Does the LMK04828BISQ/NOPB have integrated low-noise VCOs?
Yes, it has two integrated low-noise VCOs. - What is the voltage operation range of the LMK04828BISQ/NOPB?
The voltage operation range is 3.15-V to 3.45-V.
