National LMX2346 LMX2347 Data Sheet User Guide
Summary
This high-performance frequency synthesizer is engineered for robust RF communication systems, making it ideal for cellular infrastructure and WLAN equipment requiring precise, stable control signals up to 2.5 GHz. The provided manual offers comprehensive technical documentation, detailing general specifications, dual modulus prescaler functionality, electrical characteristics, and full pinout diagrams (TSSOP/CSP). It is essential reference material for system engineers and circuit designers building advanced wireless platforms.
Manual Details
| Brand | National |
|---|---|
| Pages | 27 |
| File Size | 588.82 KB |
| Published | June 05, 2026 |
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Frequently Asked Questions
What is the main difference between LMX2346 and LMX2347?
LMX2346 operates up to 2.0 GHz, while LMX2347 supports higher RF operation frequencies of up to 2.5 GHz.
What power supply voltage range can the device operate at?
The required operating voltage (VCC) for the LMX2346/LMX2347 is between 2.7V and 5.5V.
How does data get loaded into the LMX2346/7?
Data is transferred via a three-line MICROWIRE interface (DATA, LE, CLOCK), with data being entered MSB first.
Is connection to an external oscillator required?
Pin 15 allows for an external reference oscillator input and can be differential or single-endedly driven by CMOS/TTL logic.