The LMK01000 family is a high-performance clock buffer, divider, and distributor from National Semiconductor Corporation that offers 1.6GHz of performance. It features best-in-class noise performance and is pin-to-pin and footprint compatible with the LMK03000/LMK02000 family of precision clock conditioners. The LMK01000 family has two programmable clock inputs (CLKin0 and CLKin1) that allow the user to dynamically switch between different clock domains. Each device has eight clock outputs with independently programmable dividers and delay adjustments. The outputs of the device can be easily synchronized by an external pin (SYNC*).
The LMK01000 family offers high‑performance clock buffering, division, and distribution for applications such as wireless infrastructure, medical imaging, and test & measurement. The devices are pin‑to‑pin compatible with the LMK03000/LMK02000 families and support dual clock inputs with programmable output channels up to 1.6 GHz.
The manual includes functional block diagrams, pin descriptions, absolute maximum ratings, recommended operating conditions, and detailed electrical characteristics. It also covers LVDS and LVPECL output options, MICROWIRE programming interfaces, and typical performance graphs for jitter, noise floor, and delay.
| Clock Input Frequency Range | 0 – 1600 MHz |
|---|---|
| Additive RMS Jitter | 30 fs (100 Hz to 20 MHz) |
| Power Supply Voltage (typical) | 3.15 V – 3.45 V |
| Package | 48‑pin LLP (7.0 × 7.0 × 0.8 mm) |
| Operating Temperature Range | -40 °C – 85 °C |
The devices support clock input frequencies up to 1.6 GHz.
The recommended supply voltage is 3.15 V typical, with a range of 3.15 V to 3.45 V.
Yes, they are pin‑to‑pin and footprint compatible with the LMK03000/LMK02000 families.