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AS1530-T Datasheet(PDF) 3 Page - ams AG |
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AS1530-T Datasheet(HTML) 3 Page - ams AG |
3 / 29 page www.austriamicrosystems.com Revision 1.02 3 - 29 AS1530/AS1531 Data Sheet - Pi nout 4 Pinout Pin Assignments Figure 2. Pin Assignments (Top View) Pin Descriptions Table 1. Pin Descriptions Pin Number Pin Name Description 1:8 CH0:CH7 Analog Sampling Inputs. These eight pins serve as analog sampling inputs. 9COM Common Analog Inputs. Tie this pin to ground in single-ended mode. 10 VDD3 Positive Supply Voltage 11 REF Reference-Buffer Output/A/DC Reference Input. This pin serves as the reference voltage for analog-to-digital conversions. In internal reference mode, the reference buffer provides a +2.50V nominal output, externally adjustable at pin REFADJ. In external reference mode, disable the internal buffer by pulling pin REFADJ to VDD1. 12 REFADJ Reference-Buffer Amplifier Input. To disable the reference-buffer amplifier, tie this pin to VDD1. 13 GND Analog and Digital Ground 14 DOUT Serial Data Output. Data is clocked out at the rising edge of pin SCLK. DOUT is high impedance when CSN is high. 15 SSTRB Serial Strobe Output. SSTRB pulses high for one clock period before the MSB is clocked out. SSTRB is high impedance when CSN is high. 16 DIN Serial Data Input. Data is clocked in at the rising edge of SCLK. 17 CSN Active-Low Chip Select. Data will not be clocked into pin DIN unless CSN is low. When CSN is high, pins DOUT and SSTRB are high impedance. 18 SCLK Serial Clock Input. This pin clocks data into and out of the serial interface, and is used to set the conversion speed. Note: The duty cycle must be between 40 and 60%. 19 VDD2 Positive Supply Voltage 20 VDD1 Positive Supply Voltage AS1530/ AS1531 1 CH0 2 CH1 3 CH2 4 CH3 5 CH4 6 CH5 7 CH6 8 CH7 9 COM 10 VDD3 20 VDD1 19 VDD2 18 SCLK 17 CSN 16 DIN 15 SSTRB 14 DOUT 13 GND 12 REFADJ 11 REF |
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