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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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ADS42LB49IRGCR Arkusz danych(PDF) 3 Page - Texas Instruments |
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ADS42LB49IRGCR Arkusz danych(HTML) 3 Page - Texas Instruments |
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3 / 80 page  ADS42LB49 ADS42LB69 www.ti.com SLAS904D – OCTOBER 2012 – REVISED SEPTEMBER 2013 RECOMMENDED OPERATING CONDITIONS (1) Over operating free-air temperature range, unless otherwise noted. PARAMETER MIN NOM MAX UNIT SUPPLIES AVDD Analog supply voltage 1.7 1.8 1.9 V AVDD3V Analog buffer supply voltage 3.15 3.3 3.45 V DRVDD Digital supply voltage 1.7 1.8 1.9 V ANALOG INPUTS Default after reset 2 VPP VID Differential input voltage range Register programmable(2) 2.5 VPP VICR Input common-mode voltage VCM ± 0.025 V Maximum analog input frequency with 2.5-VPP input amplitude 250 MHz Maximum analog input frequency with 2-VPP input amplitude 400 MHz CLOCK INPUT QDR interface 30 250 MSPS Input clock sample rate DDR interface 10 250 MSPS Sine wave, ac-coupled 0.3(3) 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 1.5 V Input clock duty cycle 35% 50% 65% DIGITAL OUTPUTS CLOAD Maximum external load capacitance from each output pin to DRGND 3.3 pF RLOAD Single-ended load resistance +50 Ω TA Operating free-air temperature –40 +85 °C (1) After power-up, to reset the device for the first time, only use the RESET pin. Refer to the Register Initialization section. (2) For details, refer to the Digital Gain section. (3) Refer to the Performance vs Clock Amplitude curves, Figure 37 and Figure 38. Table 2. High-Frequency Modes Summary REGISTER ADDRESS VALUE DESCRIPTION Dh 90h Enable high-frequency modes for input frequencies greater than 250 MHz. Eh 90h Enable high-frequency modes for input frequencies greater than 250 MHz. Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: ADS42LB49 ADS42LB69 |
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