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ADC12D1600RF bảng dữ liệu(PDF) 8 Page - Texas Instruments |
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ADC12D1600RF bảng dữ liệu(HTML) 8 Page - Texas Instruments |
8 / 84 page GND VA VA GND GND VA GND VA ADC12D1000RF, ADC12D1600RF SNAS519H – JULY 2011 – REVISED AUGUST 2015 www.ti.com Table 3-2. Control and Status Balls PIN I/O EQUIVALENT CIRCUIT DESCRIPTION NAME NO. Calibration cycle initiate. The user can command the device to execute a self- calibration cycle by holding this input high a minimum of tCAL_H after having held it low a minimum of tCAL_L. If this input is held high at the time of power on, the automatic power-on calibration cycle is CAL D6 I inhibited until this input is cycled low-then- high. This pin is active in both ECM and Non-ECM. In ECM, this pin is logically OR'd with the CAL Bit (Addr: 0h, Bit 15) in the Control Register. Therefore, both pin and bit must be set low and then either can be set high to execute an on- command calibration. Calibration Delay select. By setting this input logic-high or logic-low, the user can select the device to wait a longer or shorter amount of time, respectively, CalDly V4 I before the automatic power-on self- calibration is initiated. This feature is pin- controlled only and is always active during ECM and Non-ECM. Calibration Running indication. This output is logic-high while the calibration CalRun B5 O sequence is executing. This output is logic-low otherwise. DDR Phase select. This input, when logic-low, selects the 0° Data-to-DCLK phase relationship. When logic-high, it selects the 90° Data-to-DCLK phase relationship, that is, the DCLK transition indicates the middle of the valid data DDRPh W4 I outputs. This pin only has an effect when the chip is in 1:2 Demuxed Mode, that is, the NDM pin is set to logic-low. In ECM, this input is ignored and the DDR phase is selected through the Control Register by the DPS Bit (Addr: 0h, Bit 14); the default is 0° Mode. 8 Pin Configuration and Functions Copyright © 2011–2015, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: ADC12D1000RF ADC12D1600RF |
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