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ADC12D1000CIUT bảng dữ liệu(PDF) 5 Page - Texas Instruments |
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ADC12D1000CIUT bảng dữ liệu(HTML) 5 Page - Texas Instruments |
5 / 86 page VA VA GND GND Tdiode_P Tdiode_N GND VA V GND VA V VA A GND - + 100: 100: ADC12D1000, ADC12D1600 www.ti.com SNAS480N – MAY 2010 – REVISED AUGUST 2015 Pin Functions: Analog Front-End and Clock Balls (continued) PIN I/O EQUIVALENT CIRCUIT DESCRIPTION NAME NO. Reference Clock Output 1 and 2. These signals provide a reference clock at a rate of CLK/4, when enabled, independently of whether the ADC is in Master or Slave Mode. The signals are used to drive the RCLK of another ADC12D1x00, to enable automatic synchronization for multiple ADCs RCOut1+/- Y5/U6 O (AutoSync feature). The impedance of each trace RCOut2+/- V6/V7 from RCOut1 and RCOut2 to the RCLK of another ADC12D1x00 should be 100- Ω differential. Having two clock outputs allows the auto-synchronization to propagate as a binary tree. Use the DOC Bit (Addr: Eh, Bit 1) to enable or disable this feature; default is disabled. External Reference Resistor terminals. A 3.3-k Ω ±0.1% resistor should be connected between Rext+/-. The Rext resistor is used as a reference to Rext+/- C3/D3 I/O trim internal circuits which affect the linearity of the converter; the value and precision of this resistor should not be compromised. Input Termination Trim Resistor terminals. A 3.3-k Ω ±0.1% resistor should be connected between Rtrim+/-. The Rtrim resistor is used to establish the calibrated 100- Ω input impedance of VinI, VinQ Rtrim+/- C1/D2 I/O and CLK. These impedances may be fine tuned by varying the value of the resistor by a corresponding percentage; however, the tuning range and performance is not ensured for such an alternate value. Temperature Sensor Diode Positive (Anode) and Negative (Cathode) Terminals. This set of pins is Tdiode+/- E2/F3 Passive used for die temperature measurements. It has not been fully characterized. Copyright © 2010–2015, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: ADC12D1000 ADC12D1600 |
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