LMX2502 and LMX2512 are highly integrated, high performance, low power frequency synthesizer systems optimized for Korean PCS and Korean Cellular CDMA (1xRTT, IS-95) mobile handsets.
The LMX2502 and LMX2512 are highly integrated, high performance, low power frequency synthesizer systems optimized for Korean PCS and Korean Cellular CDMA (1xRTT, IS-95) mobile handsets. Using a proprietary digital phase locked loop technique, these devices generate very stable, low noise local oscillator signals for up and down conversion in wireless communications devices.
The systems include a voltage controlled oscillator (VCO), a loop filter, and a fractional-N RF PLL based on a delta sigma modulator. They also feature an Integer-N IF PLL with a 4-level programmable charge pump. Serial data is transferred via a three-wire MICROWIRE interface (DATA, LE, CLK), and the operating supply voltage ranges from 2.7 V to 3.3 V.
| Package Type | 28-Pin LLP Package |
|---|---|
| Supply Voltage | 2.7 V to 3.3 V |
| Total Supply Current | 17 mA |
| RF Output Power | -4 to 4 dBm |
| Lock Time | 500 to 800 us |
The operating supply voltage ranges from 2.7 V to 3.3 V.
The total supply current is 17 mA at 2.8 V.