Overview
The LMK00334RTVR device, produced by Texas Instruments, is a 4-output HCSL fanout buffer designed for high-frequency, low-jitter clock distribution, data distribution, and level translation. It is particularly suited for applications requiring precise clock signals, such as in data centers, core routers, servers, and various high-speed communication systems. The device operates from a 3.3-V core supply and three independent 3.3-V or 2.5-V output supplies, ensuring high performance, versatility, and power efficiency.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 32-pin WQFN (5 mm × 5 mm) |
| Operating Temperature Range | -40°C to 85°C |
| Input Frequency (Max) | 400 MHz |
| Input Levels | CML, HCSL, HSTL, LVCMOS, LVDS, LVPECL, SSTL, Crystal |
| Number of Outputs | 4 |
| Output Levels | HCSL, LVCMOS |
| Additive RMS Phase Jitter (Typical) for PCIe Gen5 at 100 MHz | 15 fs |
| PSRR | -72 dBc at 156.25 MHz |
| VCC Core Supply | 3.3 V ± 5% |
| VCCO Output Supplies | 3.3 V, 2.5 V ± 5% |
| Quiescent Current (ICC_CORE) | 8.5 - 13.5 mA |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| RoHS Status | Compliant |
Key Features
- 3:1 Input multiplexer with two universal inputs operating up to 400 MHz and one crystal input accepting 10- to 40-MHz crystals or single-ended clocks.
- Two banks with two differential HCSL outputs each, and one LVCMOS output with synchronous enable input.
- Selectable HCSL or Hi-Z outputs.
- High PSRR: -72 dBc at 156.25 MHz.
- Pin-controlled configuration.
- Industrial temperature range: -40°C to +105°C.
- Low additive RMS phase jitter for PCIe Gen5 at 100 MHz: 15 fs (typical).
Applications
- Data center switches.
- Core routers.
- Servers and computing systems, particularly for PCIe Gen 3.0 to 5.0 applications.
- Remote radio units and baseband units.
- ADCs, DACs, multi-gigabit Ethernet, XAUI, fibre channel, SATA/SAS, SONET/SDH, CPRI, and high-frequency backplanes.
Q & A
- What is the primary function of the LMK00334RTVR device?
The LMK00334RTVR is a 4-output HCSL fanout buffer designed for high-frequency, low-jitter clock distribution, data distribution, and level translation. - What are the input frequency and levels supported by the LMK00334RTVR?
The device supports input frequencies up to 400 MHz and accepts various input levels including CML, HCSL, HSTL, LVCMOS, LVDS, LVPECL, SSTL, and crystal inputs. - How many outputs does the LMK00334RTVR have, and what types are they?
The device has four outputs: two banks with two differential HCSL outputs each and one LVCMOS output. - What is the operating temperature range of the LMK00334RTVR?
The operating temperature range is -40°C to 85°C. - What are the supply voltage requirements for the LMK00334RTVR?
The device operates from a 3.3-V core supply and three independent 3.3-V or 2.5-V output supplies. - What is the additive RMS phase jitter for PCIe Gen5 at 100 MHz?
The additive RMS phase jitter is 15 fs (typical) for PCIe Gen5 at 100 MHz. - Is the LMK00334RTVR RoHS compliant?
Yes, the LMK00334RTVR is RoHS compliant. - What are some common applications of the LMK00334RTVR?
Common applications include data center switches, core routers, servers, remote radio units, baseband units, and various high-speed communication systems. - What is the package type and size of the LMK00334RTVR?
The package type is a 32-pin WQFN with dimensions of 5 mm × 5 mm. - What is the moisture sensitivity level (MSL) of the LMK00334RTVR?
The MSL is 3 (168 Hours).
