National LMX2335U/LMX2336U handbook
Update: 01 October, 2023
The LMX2335U/LMX2336U PLLatinum™ is an ultra low power dual frequency synthesizer for RF personal communications. LMX2335U is 1.2 GHz/1.2 GHz, LMX2336U is 2.0 GHz/1.2 GHz. These two devices are high performance frequency synthesizers with integrated dual modulus prescalers. The LMX2335U/LMX2336U devices are designed for use in applications requiring two RF phase-locked loops. A 64/65 or a 128/129 prescale ratio can be selected for each RF synthesizer. Using a proprietary digital phase locked loop technique, the LMX2335U/LMX2336U devices generate very stable, low noise control signals for the RF voltage controlled oscillators. Both RF synthesizers include two-level programmable charge pump. The RF1 synthesizera has dedicated Fastlock circuitry. Serial data is transferred to the devices via a three wire interface (Data, LE, Clock). Supply voltages from 2.7V to 5.5V are supported. The LMX2335U and the LMX2336U feature very low current consumption: LMX2335U (1.2 GHz)– 3.0 mA, LMX2336U (2.0 GHz)– 3.5 mA at 3.0V. The LMX2335U device is available in 16-pin TSSOP, and 16-pin Chip Scale Package (CSP) surface mount plastic packages. The LMX2336U device is available in 20-Pin TSSOP, 24-Pin CSP, and 20-Pin UTCSP surface mount plastic packages.
Brand: National
File format: PDF
Size: 3105 KB
MD5 Checksum: AB823F9A5D76E6FB290B8254049E5252
Publication date: 06 July, 2012
Downloads: -
PDF Link: National LMX2335U/LMX2336U handbook PDF