Overview
The LMK04906BISQE/NOPB, produced by Texas Instruments, is an ultra-low noise clock jitter cleaner and multiplier. It is designed to meet the high-performance timing needs of various applications, including telecommunications, data centers, and wireless base stations. This device is renowned for its superior clock jitter cleaning, generation, and distribution capabilities, making it a critical component in high-speed data transmission systems.
Key Specifications
| Parameter | Value |
|---|---|
| Package | WQFN (NKD), 64 pins |
| Operating Temperature Range | -40°C to 85°C |
| Supply Voltage | 3.15 V to 3.45 V |
| RMS Jitter (12 kHz to 20 MHz) | 100 fs |
| RMS Jitter (100 Hz to 20 MHz) | 123 fs |
| Input Clock Frequency Range | 1 kHz to 500 MHz |
| Output Clock Frequency Range | 284 kHz to 2.6 GHz |
| Number of Programmable Outputs | 6 differential (up to 12 single-ended) |
| Output Types | LVPECL, LVDS, LVCMOS |
| VCO Frequency Range | 2370 MHz to 2600 MHz |
Key Features
- Ultralow RMS jitter performance: 100 fs (12 kHz to 20 MHz) and 123 fs (100 Hz to 20 MHz)
- Dual Loop PLLatinum™ PLL architecture with integrated low-noise crystal oscillator circuit and holdover mode
- Three redundant input clocks with loss of signal (LOS) detection and automatic/manual switch-over modes
- 50% duty cycle output divides (1 to 1045, even and odd)
- Programmable outputs: LVPECL, LVDS, or LVCMOS
- Precision digital delay, fixed or dynamically adjustable, with 25-ps step analog delay control
- Clock rates up to 2600 MHz and 0-delay mode
- Multi-mode operation: dual PLL, single PLL, and clock distribution
- Industrial temperature range: -40°C to 85°C
Applications
- 10G, 40G, and 100G OTN line cards
- SONET/SDH OC-48/STM-16 and OC-192/STM-64 line cards
- GbE/10GbE, 1/2/4/8/10GFC line cards
- ITU G.709 and custom FEC line cards
- Synchronous Ethernet
- Optical modules
- DSLAM/MSANs
- Test and measurement equipment
- Broadcast video
- Wireless base stations
- Data converter clocking
- Microwave ODU and IDUs for wireless backhaul
Q & A
- What is the primary function of the LMK04906BISQE/NOPB?
The LMK04906BISQE/NOPB is an ultra-low noise clock jitter cleaner and multiplier designed for high-performance timing applications.
- What is the RMS jitter performance of the LMK04906BISQE/NOPB?
The device has an RMS jitter of 100 fs (12 kHz to 20 MHz) and 123 fs (100 Hz to 20 MHz).
- How many programmable outputs does the LMK04906BISQE/NOPB have?
The device has 6 programmable differential outputs (up to 12 single-ended).
- What types of output signals can the LMK04906BISQE/NOPB generate?
The device can generate LVPECL, LVDS, or LVCMOS output signals.
- What is the operating temperature range of the LMK04906BISQE/NOPB?
The operating temperature range is -40°C to 85°C.
- What is the supply voltage range for the LMK04906BISQE/NOPB?
The supply voltage range is 3.15 V to 3.45 V.
- How many input clocks can the LMK04906BISQE/NOPB accept?
The device can accept 3 redundant input clocks.
- What is the frequency range of the input clocks for the LMK04906BISQE/NOPB?
The input clock frequency range is from 1 kHz to 500 MHz.
- Can the LMK04906BISQE/NOPB buffer a crystal or VCXO?
Yes, the device can buffer a crystal or VCXO to generate an additional unique clock frequency.
- How are the input clock frequency and clock multiplication ratio programmed?
The input clock frequency and clock multiplication ratio are programmable through a SPI interface.
- What are some common applications of the LMK04906BISQE/NOPB?
Common applications include 10G, 40G, and 100G OTN line cards, SONET/SDH line cards, GbE/10GbE line cards, and wireless base stations.
