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LMX2486SQX bảng dữ liệu(PDF) 3 Page - Texas Instruments |
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LMX2486SQX bảng dữ liệu(HTML) 3 Page - Texas Instruments |
3 / 47 page FinIF 24 14 15 13 16 17 18 19 20 23 21 22 7 12 11 8 10 9 5 4 6 3 2 1 Pin 0 (Ground Substrate) VddIF1 GND CPoutIF VddIF2 OSCout LE FinRF* FinRF VddRF1 GND CPoutRF LMX2486 www.ti.com SNAS324B – JANUARY 2006 – REVISED JANUARY 2016 5 Pin Configuration and Functions RTW Package 24-Pin WQFN Top View Pin Functions PIN I/O DESCRIPTION NO. NAME 0 GND — Ground substrate; this is on the bottom of the package and must be grounded. 1 CPoutRF O RF PLL charge pump output 2 GND — RF PLL analog ground 3 VddRF1 — RF PLL analog power supply 4 FinRF I RF PLL high-frequency input pin 5 FinRF* I RF PLL complementary high-frequency input pin; shunt to ground with a 100-pF capacitor. MICROWIRE Load Enable; high-impedance CMOS input. Data stored in the shift registers is loaded 6 LE I into the internal latches when LE goes HIGH. 7 DATA I MICROWIRE Data; high-impedance binary serial data input. MICROWIRE Clock; high-impedance CMOS Clock input. Data for the various counters is clocked into 8 CLK I the 24-bit shift register on the rising edge. 9 VddRF2 — Power supply for RF PLL digital circuitry 10 CE I Chip Enable control pin; must be pulled high for normal operation. 11 VddRF5 I Power supply for RF PLL digital circuitry 12 Ftest/LD O Test frequency output / Lock Detect 13 FinIF I IF PLL high-frequency input pin 14 VddIF1 — IF PLL analog power supply 15 GND — IF PLL digital ground 16 CPoutIF O IF PLL charge pump output 17 VddIF2 — IF PLL power supply 18 OSCout O Buffered output of the OSCin signal Oscillator enable; when this is set to high, the OSCout pin is enabled regardless of the state of other 19 ENOSC I pins or register bits. 20 OSCin I Reference input 21 NC I This pin must be left open. 22 VddRF3 — Power supply for RF PLL digital circuitry 23 FLoutRF O RF PLL fastlock output; also functions as programmable TRI-STATE CMOS output. 24 VddRF4 — RF PLL analog power supply Copyright © 2006–2016, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LMX2486 |
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