- 非IC关键词
企业档案
产品分类
- 贴片/片式/SMD二极管(1)
- 开关三极管(2)
- MOSFET(1)
- 贴片(片式/SMD)电容(1)
- 贴片晶振(1)
- 条形(压接式)连接器(3)
产品信息
锁相环频率合成, 6.4 GHZ, 3.15 V至3.45 V电源, WQFN-24
The LMX2491 device is a low-noise, 6.4-GHz wideband delta-sigma fractional N PLL with ramp and chirp generation. It consists of a phase frequency detector, programmable charge pump, and high frequency input for the external VCO. The LMX2491 supports a broad and flexible class of ramping capabilities, including FSK, PSK, and configurable piecewise linear FM modulation profiles of up to 8 segments. It supports fine PLL resolution and fast ramp with up to a 200-MHz phase detector rate. The LMX2491 allows any of its registers to be read back. The LMX2491 can operate with a single 3.3-V supply. Moreover, supporting up to 5.25-V charge pump can eliminate the need of external amplifier, leading to a simpler solution with improved phase noise performance.