LMK00338RTAR

The LMK00338RTAR is a high-performance 3.8 GHz clock buffer from Texas Instruments, designed for precision timing applications. It features 8 differential outputs (LVPECL, LVDS, or HCSL configurable) with ultra-low additive jitter (<100 fs RMS).
Key features:
- Inputs: Accepts LVPECL, LVDS, HCSL, or single-ended clocks.
- Outputs: Configurable as 8x LVPECL, LVDS, or 4x HCSL pairs.
- Low jitter: <100 fs RMS (12 kHz–20 MHz).
- Supply voltage: 3.3 V ±10%.
- Applications: Telecom, networking, data centers, and test equipment.
The device ensures signal integrity with minimal skew and high noise immunity, making it ideal for high-speed systems. Its small 40-pin WQFN package (RTAR) suits space-constrained designs.
For detailed specs, refer to the [TI datasheet](https://www.ti.com/lit/ds/symlink/lmk00338.pdf).

Equivalent products to the LMK00338RTAR (a 3.3V LVCMOS fanout buffer from Texas Instruments) include:
- ON Semiconductor NB3L553 (3.3V fanout buffer)
- Renesas 5PB11xx (similar LVCMOS fanout buffers)
- IDT 853Sxxx (low-skew clock buffers)
- Microchip SY89833L (high-speed LVCMOS buffer)
Check datasheets for exact pinout and specs.

The LMK00338RTAR is a 40-pin (QFN package) clock buffer/fanout device. Key functions:
- Inputs: 2 differential or 4 single-ended clock inputs.
- Outputs: 8 low-noise, low-skew differential outputs (configurable as LVPECL, LVDS, or HCSL).
- Features:
- Supports frequencies up to 3.3 GHz.
- Integrated termination resistors.
- Low additive jitter (<100 fs RMS).
- Control: Pin/SPI-selectable output formats and enable/disable.
Ideal for high-speed clock distribution in networking, telecom, and FPGA systems.