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LMX2592 Datasheet(PDF) 4 Page - Texas Instruments |
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LMX2592 Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 40 page  LMX2592 SNAS646A – DECEMBER 2015 – REVISED DECEMBER 2015 www.ti.com Pin Functions (continued) PIN I/O DESCRIPTION NAME NO. Differential output B (-). This output requires a pull up component for proper biasing. A 50- Ω RFoutBM 19 Output resistor or inductor may be used. Place as close to output as possible. Programmable with register MUXOUT_SEL to be readback SDO or lock detect indicator MUXout 20 Output (active high). VCCBUF 21 Supply Output buffer supply. Requires connecting 0.1-µF capacitor to RFout ground. Differential output A (-). This output requires a pull up component for proper biasing. A 50- Ω RFoutAM 22 Output resistor or inductor may be used. Place as close to output as possible. Differential output A (+). This output requires a pull up component for proper biasing. A 50- Ω RFoutAP 23 Output resistor or inductor may be used. Place as close to output as possible. CSB 24 Input SPI chip select bar or uWire latch enable. High impedance CMOS input. 1.8 to3.3-V logic. GND 25 Ground VCO ground. VCCVCO2 26 Supply VCO supply. Recommend connecting 0.1-µF and 10-µF capacitor to VCO ground. VCO bias internal voltage, access for bypass. Requires connecting 1-µF capacitor to VCO VbiasVCO2 27 Bypass ground. NC 28 — Not connected. VCO supply internal voltage, access for bypass. Requires connecting 10-µF capacitor to VrefVCO2 29 Bypass VCO ground. Rext 30 Bypass External resistor connection. Requires connecting 680- Ω resistor to ground. GND 31 Ground VCO ground. NC 32 — Not connected. VCO varactor internal voltage, access for bypass. Requires connecting 10-µF capacitor to VbiasVARAC 33 Bypass VCO ground. GND 34 Ground VCO ground. Vtune 35 Input VCO tuning voltage input. This signal should be kept away from noise sources. VCO supply internal voltage, access for bypass. Requires connecting 10-µF capacitor to VrefVCO 36 Bypass ground. VCCVCO 37 Supply VCO supply. Recommend connecting 0.1-µF and 10-µF capacitor to ground. VCO supply internal voltage, access for bypass. Requires connecting 1-µF capacitor to VregVCO 38 Bypass ground. GND 39 Ground VCO ground. GND 40 Ground VCO ground. GND DAP Ground RFout ground. 4 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated Product Folder Links: LMX2592 |
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