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ADS58C28 Datasheet(PDF) 4 Page - Texas Instruments |
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ADS58C28 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 68 page ADS58C28 SBAS509B – JUNE 2010 – REVISED OCTOBER 2010 www.ti.com RECOMMENDED OPERATING CONDITIONS Over operating free-air temperature range, unless otherwise noted. MIN NOM MAX UNIT SUPPLIES Analog supply voltage, AVDD 1.75 1.8 1.9 V Digital supply voltage, DRVDD 1.7 1.8 1.9 V ANALOG INPUTS Default, SNRBoost3G disabled 2 VPP Differential input voltage range SNRBoost3G enabled 1.6 VPP Input common-mode voltage VCM(1) ± 0.05 V Maximum analog input frequency with 2VPP input amplitude (2) 400 MHz Maximum analog input frequency with 1VPP input amplitude (2) 600 MHz CLOCK INPUT Default after reset LOW SPEED mode disabled > 80 200 Input clock sample rate(3) MSPS LOW SPEED mode enabled 1 80 Sine wave, ac-coupled 0.2 1.5 VPP LVPECL, ac-coupled 1.6 VPP Input clock amplitude differential (VCLKP – VCLKM) LVDS, ac-coupled 0.7 VPP LVCMOS, single-ended, ac-coupled 1.8 V Input clock duty cycle Default after reset LOW SPEED mode disabled 35 50 65 % LOW SPEED mode enabled 40 50 60 % DIGITAL OUTPUTS Maximum external load capacitance from each output pin to DRGND, CLOAD 10 pF Differential load resistance between the LVDS output pairs (LVDS mode), RLOAD 100 Ω HIGH-PERFORMANCE MODES(4)(5) Set this register bit to get best performance across Register address = 03h, High-performance mode sample clock and input signal frequencies data = 03h Register address = 4Ah, data = 01h Set these register bits for high input signal High-frequency mode frequencies (> 200MHz) Register address = 58h, data = 01h Operating free-air temperature, TA –40 +85 °C (1) VCM, typically 0.95V, is the voltage measured on the VCM pin when the input clock is switched off. (2) See the Theory of Operation section in the Application Information (3) See description for LOW SPEED mode in the Serial Interface Configuration section. (4) It is recommended to use these modes to obtain best performance. (5) See the Serial Interface Configuration section for details on register programming. 4 Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated Product Folder Link(s): ADS58C28 |
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