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LMX2485 Datasheet(PDF) 2 Page - Texas Instruments |
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LMX2485 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 43 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 VddRF5 Phase Comp FinIF Charge Pump CPoutIF Ftest/LD MUX Ftest/LD IF LD Phase Comp 8/9 or 16/17 Prescaler B Counter IF N Divider A Counter FLoutRF VddIF2 VddIF1 RF N Divider GND GND GND FinRF FinRF* 8/9/12/13 or 16/17/20/21 Prescaler C Counter 6' Compensation A Counter B Counter RF N Divider ENOSC OSCout OSCin VddRF4 VddRF3 VddRF2 VddRF1 IF R Divider RF R Divider 1X / 2X RF LD Charge Pump CPoutRF RF Fastlock MICROWIRE Interface CLK LE DATA CE LMX2485, LMX2485E SNAS236E – OCTOBER 2005 – REVISED FEBRUARY 2008 www.ti.com FUNCTIONAL BLOCK DIAGRAM CONNECTION DIAGRAM Figure 1. Top View 24-Pin LLP (SQ) PIN FUNCTIONS Pin Descriptions Pin # Pin Name I/O Pin Description 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. 6 LE I MICROWIRE Load Enable. High impedance CMOS input. Data stored in the shift registers is loaded into the internal latches when LE goes HIGH 7 DATA I MICROWIRE Data. High impedance binary serial data input. 2 Submit Documentation Feedback Copyright © 2005–2008, Texas Instruments Incorporated Product Folder Links: LMX2485 LMX2485E |
Similar Part No. - LMX2485_14 |
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Similar Description - LMX2485_14 |
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