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AD2S1210CSTZ датащи(PDF) 10 Page - Analog Devices |
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AD2S1210CSTZ датащи(HTML) 10 Page - Analog Devices |
10 / 37 page AD2S1210 Rev. A | Page 9 of 36 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS 48 47 46 45 44 43 42 41 40 39 38 37 35 DOS 34 LOT 33 RESET 30 B 31 NM 32 DIR 36 A1 29 A 28 DB0 27 DB1 25 DB3 26 DB2 2 CS 3 RD 4 WR/FSYNC 7 CLKIN 6 DVDD 5 DGND 1 RES1 8 XTALOUT 9 SOE 10 SAMPLE 12 DB14/SDI 11 DB15/SDO 13 14 15 16 17 18 19 20 21 22 23 24 PIN 1 AD2S1210 TOP VIEW (Not to Scale) Figure 2. Pin Configuration Table 4. Pin Function Descriptions Pin No. Mnemonic Description 1 RES1 Resolution Select 1. Logic input. RES1 in conjunction with RES0 allows the resolution of the AD2S1210 to be programmed. Refer to the Configuration of AD2S1210 section. 2 CS Chip Select. Active low logic input. The device is enabled when CS is held low. 3 RD Edge-Triggered Logic Input. When the SOE pin is high, this pin acts as a frame synchronization signal and output enable for the parallel data outputs, DB15 to DB0. The output buffer is enabled when CS and RD are held low. When the SOE pin is low, the RD pin should be held high. 4 WR/FSYNC Edge-Triggered Logic Input. When the SOE pin is high, this pin acts as a frame synchronization signal and input enable for the parallel data inputs, DB7 to DB0. The input buffer is enabled when CS and WR/FSYNC are held low. When the SOE pin is low, the WR/FSYNC pin acts as a frame synchronization signal and enable for the serial data bus. 5, 19 DGND Digital Ground. These pins are ground reference points for digital circuitry on the AD2S1210. Refer all digital input signals to this DGND voltage. Both of these pins can be connected to the AGND plane of a system. The DGND and AGND voltages should ideally be at the same potential and must not be more than 0.3 V apart, even on a transient basis. 6 DVDD Digital Supply Voltage, 4.75 V to 5.25 V. This is the supply voltage for all digital circuitry on the AD2S1210. The AVDD and DVDD voltages ideally should be at the same potential and must not be more than 0.3 V apart, even on a transient basis. 7 CLKIN Clock Input. A crystal or oscillator can be used at the CLKIN and XTALOUT pins to supply the required clock frequency of the AD2S1210. Alternatively, a single-ended clock can be applied to the CLKIN pin. The input frequency of the AD2S1210 is specified from 6.144 MHz to 10.24 MHz. 8 XTALOUT Crystal Output. When using a crystal or oscillator to supply the clock frequency to the AD2S1210, apply the crystal across the CLKIN and XTALOUT pins. When using a single-ended clock source, the XTALOUT pin should be considered a no connect pin. 9 SOE Serial Output Enable. Logic input. This pin enables either the parallel or serial interface. The serial interface is selected by holding the SOE pin low, and the parallel interface is selected by holding the SOE pin high. 10 SAMPLE Sample Result. Logic input. Data is transferred from the position and velocity integrators to the position and velocity registers, after a high-to-low transition on the SAMPLE signal. The fault register is also updated after a high-to-low transition on the SAMPLE signal. 11 DB15/SDO Data Bit 15/Serial Data Output Bus. When the SOE pin is high, this pin acts as DB15, a three-state data output pin controlled by CS and RD. When the SOE pin is low, this pin acts as SDO, the serial data output bus controlled by CS and WR/FSYNC. The bits are clocked out on the rising edge of SCLK. 12 DB14/SDI Data Bit 14/Serial Data Input Bus. When the SOE pin is high, this pin acts as DB14, a three-state data output pin controlled by CS and RD. When the SOE pin is low, this pin acts as SDI, the serial data input bus controlled by CS and WR/FSYNC. The bits are clocked in on the falling edge of SCLK. |
Аналогичный номер детали - AD2S1210CSTZ |
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Аналогичное описание - AD2S1210CSTZ |
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