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AD1938 Datasheet(PDF) 9 Page - Analog Devices |
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AD1938 Datasheet(HTML) 9 Page - Analog Devices |
9 / 32 page AD1938 Rev. 0 | Page 9 of 32 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS 48 47 46 45 44 43 42 41 40 39 38 37 13 14 15 16 17 18 19 20 21 22 23 24 AGND 1 MCLKI/XI 2 MCLKO/XO 3 AGND 4 AVDD 5 OL3 6 OR3 7 OL4 8 OR4 9 PD/RST 10 DSDATA4 11 DGND 12 AGND 36 FILTR 35 AGND 34 AVDD 33 AGND 32 OR2 31 OL2 30 OR1 29 OL1 28 CLATCH/ADR1 27 CCLK/SCL 26 DGND 25 AD1938 TOP VIEW (Not to Scale) SINGLE-ENDED OUTPUT Figure 2. Pin Configuration, 48-Lead LQFP Table 10. 48-Lead LQFP Package for AD1938 Pin No. In/Out Mnemonic Description 1 I AGND Analog Ground. 2 I MCLKI/XI Master Clock Input/Crystal Oscillator Input. 3 O MCLKO/XO Master Clock Output/Crystal Oscillator Output. 4 I AGND Analog Ground. 5 I AVDD Analog Power Supply. Connect to analog 3.3 V supply. 6 O OL3 DAC 3 Left Output. 7 O OR3 DAC 3 Right Output. 8 O OL4 DAC 4 Left Output. 9 O OR4 DAC 4 Right Output. 10 I PD/RST Power-Down Reset (Active Low). 11 I/O DSDATA4 DAC Input 4 (Input to DAC 4 L and R)/DAC TDM Data Out 2/AUX ADC 1 Data In. 12 I DGND Digital Ground. 13 I DVDD Digital Power Supply. Connect to digital 3.3 V supply. 14 I/O DSDATA3 DAC Input 3 (Input to DAC 3 L and R)/DAC TDM Data In 2/Aux DAC 2 Data Output. 15 I/O DSDATA2 DAC Input 2 (Input to DAC 2 L and R)/DAC TDM Data Out/AUX ADC 1 Data In. 16 I DSDATA1 DAC Input 1 (Input to DAC 1 L and R)/DAC TDM Data In/AUX ADC 2 Data In. 17 I/O DBCLK Bit Clock for DACs. 18 I/O DLRCLK LR Clock for DACs. 19 I/O ASDATA2 ADC Serial Data Output 2 (ADC 2 L and R)/ADC TDM Data Input/Aux DAC 1 Data Output. 20 O ASDATA1 ADC Serial Data Output 1 (ADC 1 L and R)/ADC TDM Data Output. 21 I/O ABCLK Bit Clock for ADCs. 22 I/O ALRCLK LR Clock for ADCs. 23 I CIN/ADR0 Control Data Input (SPI). 24 O COUT/SDA Control Data Output (SPI). 25 I DGND Digital Ground. 26 I CCLK/SCL Control Clock Input (SPI). 27 I CLATCH/ADR1 Latch Input for Control Data (SPI). 28 O OL1 DAC 1 Left Output. |
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