ADF4219L

过期

低功耗双通道RF/IF整数N分频PLL

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概述

低相位噪声
独立的电荷泵电源VP可提供扩展的调谐范围
2.6 V至3.3 V单电源供电
提供TSSOP和芯片级封装
可编程电荷泵电流
逻辑兼容性：1.8 V
低功耗（总IDD：7.0 mA）
可选双模预分频器值
ADF4219L是LMX2370的低相位噪声升级器件

The ADF4219L Synthesizer IC when combined with a VCO and loop filter forms a complete phased locked loop (PLL). This solution from ADI creates state-of-the-art LO's (local oscillator) for the upconversion and downconversion of RF signals in Wireless applications. The PLL consists of a low noise digital phase frequency detector (PFD), a precision charge pump, a programmable reference divider, programmable A and B counters and a dual-modulus prescaler (P/P+1).

The ADF4217L and ADF4218L are low current consumption improvements on the released ADF4217 and ADF4218 and are available in TSSOP and MLF (LFCSP). The ADF4219L is a Phase Noise upgrade & pin compatible to the LMX2370 from National Semiconductor and is available in both TSSOP and MLF (Cason).

Sales Collateral Available: Full data sheet with performance graphs, press release, circuit simulation included in ADISimPLL Synthesizer released on February 1, 2002, evaluation board and software available.