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ADC12D1000CIUT Arkusz danych(PDF) 9 Page - Texas Instruments |
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ADC12D1000CIUT Arkusz danych(HTML) 9 Page - Texas Instruments |
9 / 73 page VA GND GND VA 100 k: ADC12D1000, ADC12D1600 www.ti.com SNAS480M – MAY 2010 – REVISED MARCH 2013 Table 2. Control and Status Balls (continued) Ball No. Name Equivalent Circuit Description Serial Data-In. In ECM, serial data is shifted into B4 SDI the device on this pin while SCS signal is asserted (logic-low). Serial Data-Out. In ECM, serial data is shifted out of the device on this pin while SCS signal is A3 SDO asserted (logic-low). This output is at TRI-STATE when SCS is de-asserted. Do Not Connect. These pins are used for internal D1, D7, E3, F4, DNC NONE purposes and should not be connected, i.e. left W3, U7 floating. Do not ground. Not Connected. This pin is not bonded and may C7 NC NONE be left floating or connected to any potential. Table 3. Power and Ground Balls Ball No. Name Equivalent Circuit Description A2, A6, B6, C6, D8, D9, E1, F1, Power Supply for the Analog circuitry. This supply H4, N4, R1, T1, VA NONE is tied to the ESD ring. Therefore, it must be U8, U9, W6, Y2, powered up before or with any other supply. Y6 G1, G3, G4, H2, J3, K3, L3, M3, Power Supply for the Track-and-Hold and Clock VTC NONE N2, P1, P3, P4, circuitry. R3, R4 A11, A15, C18, D11, D15, D17, J17, J20, R17, VDR NONE Power Supply for the Output Drivers. R20, T17, U11, U15, U16, Y11, Y15 A8, B9, C8, V8, VE NONE Power Supply for the Digital Encoder. W9, Y8 Bias Voltage I-channel. This is an externally decoupled bias voltage for the I-channel. Each pin J4, K2 VbiasI NONE should individually be decoupled with a 100 nF capacitor via a low resistance, low inductance path to GND. Bias Voltage Q-channel. This is an externally decoupled bias voltage for the Q-channel. Each L2, M4 VbiasQ NONE pin should individually be decoupled with a 100 nF capacitor via a low resistance, low inductance path to GND. Copyright © 2010–2013, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: ADC12D1000 ADC12D1600 |
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