具有集成 VCO 的 PLLatinum 双路频率合成器系统 28-WQFN -30 to 85
LMX2522 and LMX2532 are highly integrated, high performance, low power frequency synthesizer systems optimized for Korean PCS K-PCS with GPS and Korean Cellular K-Cellular with GPS, CDMA 1xRTT, IS-95 mobile handsets. Using a proprietary digital phase locked loop technique, LMX2522 and LMX2532 generate very stable, low noise local oscillator signals for up and down conversion in wireless communications devices.
LMX2522 and LMX2532 include a RF voltage controlled oscillator VCO, a GPS VCO, a loop filter, and a fractional-N RF PLL based on a delta sigma modulator. In concert these blocks form a closed loop RF and GPS synthesizer system. LMX2522 supports the Korean PCS band with GPS and LMX2532 supports the Korean Cellular band with GPS.
LMX2522 and LMX2532 include an Integer-N IF PLL also. For more flexible loop filter designs, the IF PLL includes a 4-level programmable charge pump. Together with an external VCO and loop filter, LMX2522 and LMX2532 make a complete closed loop IF synthesizer system.
Serial data is transferred to the device via a three-wire MICROWIRE interface DATA, LE, CLK.
Operating supply voltage ranges from 2.7 V to 3.3 V. LMX2502 and LMX2512 feature low current consumption: 17 mA at 2.8 V.
LMX2522 and LMX2532 are available in a 28-pin WQFN package.
型号 | 品牌 | 下载 |
---|---|---|
LMX2522LQ1635/NOPB | TI 德州仪器 | 下载 |
LMX2512LQ0967/NOPB | TI 德州仪器 | 下载 |
LMX2502LQ1635/NOPB | TI 德州仪器 | 下载 |
LMX2522LQ1635 | TI 德州仪器 | 下载 |
LMX2512LQX1065 | TI 德州仪器 | 下载 |
LMX2522LQX1635 | TI 德州仪器 | 下载 |
LMX2515LQ1321/NOPB | TI 德州仪器 | 下载 |
LMX2532LQX0967 | TI 德州仪器 | 下载 |
LMX2532LQX1065 | TI 德州仪器 | 下载 |
LMX2502LQX1635 | TI 德州仪器 | 下载 |
LMX2505LQ1321/NOPB | TI 德州仪器 | 下载 |