LMX2313USLDX

• RF up to 2.5 GHz operation
• 2.7V to 5.5V operation
• Ultra-low current consumption
• Low pre-crossover values LMX2310/1/2U 32/33 or 16/17 LMX2313U 16/17 or 8/9
• Excellent phase noise
• Internally balanced, low-leakage charge pump
• Optional charge pump current level
• With timeout counters you can choose Fastlock mode
• MICROWIRE Interface Low Voltage (1.72V to V CC)
• Digital and analog lockout detection
• Small 20-piece thin chip-scale package

illustrate

The LMX2310/1/2/3U is a high-performance frequency synthesizer. The LMX2310/1/2U uses an optional, 32/33 and 16/17 dual-mode crossover. The LMX2313U uses an optional, dual-mode 16/17 and 8/9 pre-divider. This device, when combined with a high-quality reference oscillator and a voltage-controlled oscillator, produces a very stable, low-noise conversion of the most local oscillator signal and wireless communication equipment.

Serial data transmission to LMX2310/1/2/3U via three-wire interfaces (data, enable, clock) can be interfaced directly with low-voltage baseband processors. The supply voltage range is from 2.7V to 5.5V. LMX2310U has a very low current consumption, typically at 3.0V 2.3 mA.

The LMX2310/1/2/3U is based on National Semiconductor's 0.5μABIC V-silicon BiCMOS process and is packaged in a 20-pin CSP package.

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• Cellular DCS, PCS, WCDMA phone system
• Wireless Local Area Network (WLAN)
• Global Positioning System (GPS)
• Other wireless communication systems