ALD523DPH ALD [Advanced Linear Devices], ALD523DPH Datasheet
ALD523DPH
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ALD523DPH Summary of contents
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MULTIFUNCTION 7-DIGIT SERIAL INPUT DISPLAY MODULE CONTROLLER ALD500 ANALOG INPUT EXTERNAL SERIAL BINARY INPUT PC PRODUCT FEATURES AND BENEFITS ± full digit plus sign ( 9999999) display ± 6½ Built-in 21 bit serial binary to Compatible with ...
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... DATIN 23 DEC2/D3 22 DGND 21 DEC1/D2 20 SEL1/D1 19 SEL0/D0 18 DVCS 17 N N/C http://www.aldinc.com OPERATING TEMPERATURE RANGE + +70 28-Pin Small Outline Package (SOIC) ALD523DPH ALD523DSH ALD523D COUT 1 S3/RS 2 SDA S2/EN 3 S1/SCL DATOUT 4 B1/D4 SCLK B2/D5 5 DATIN 6 DSA1/D6 Z/D3 7 DSA2/D7 DGND + V 8 M/D2 9 XTAL2 SEL1/D1 ...
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GENERAL DESCRIPTION The ALD523D is a Multifunction 7-Digit Serial Input Display Module Controller designed to interface directly to ALD500 or ALD500R integrating dual slope precision analog processors as a chip set for building a high precision and high accuracy analog-to-digital ...
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This feature becomes useful for applications that require multiple modes of operations where up to three different types of measurements are made and displayed. I. CALIBRATED REFERENCE MODE (MODE-A) The calibrated reference mode (mode-A) is primarily intended ...
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ALD523 SETUP AND CALIBRATION SOFTWARE In the stand-alone mode, ALD523D operates in conjunction with a 1K EEPROM chip to preserve the setup and arithmetic (calibration) parameters of the ALD523D. These parameters are utilized to fully control the CDM and measurement ...
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SCLK polarity can be inverted, as described in the next section. The positions of the serial data bits and sign bit within a given serial data word are determined by the 32 bit data bit ...
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X-TAL OSC Or EXT. CLOCK SETF ÷ ÷ ÷ ÷ 2 SETF ÷ ÷ ÷ ÷ 16 ÷ ÷ ÷ ÷ 4 Figure 4. Programmable input frequency divider of the clock source. The 4-bit hexadecimal number defines the selection of ...
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SELECTING AND CONFIGURING DISPLAY SETTINGS The ALD523D uses SEL0 and SEL1 control-input pins for selecting different display sets “DGS0”, “DGS1”, “DGS2”, and “DGS3”. Each display set “DGSx” has an associated mode of operation “Mx”, unit display “UNTx”, decimal point placement ...
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In mode-A operation, the conversion factor “±CAL1” parameters resulted from hardware calibration, and they are scaled through the use of scale factor parameter “N1” specified inside the DVM523.EXE program. “±CAL2” and “±CAL3” parameters are obtained from scaling the conversion factor ...
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Each command uses the same format, and has valid parameters as “00”, “01”, “02”, “03”, “04”, and “05”. “00” ...
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DSA1 and DSA2 pins on the ALD523D function as data sample averaging selection switches. Four DSA1 and DSA2 switch combinations are described in Table 7. Each logical state combination selects a pre-defined averaging/sampling. GROUP FUNCTION DATA ...
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POWER UP AND POWER DOWN Upon power up or power-on-reset, the ALD523D initializes all internal counters, registers, I/O ports, and the CDM. Then it reads the setting of the control-input pins, and sets up the mode of operation as programmed ...
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EEPROM MEMORY The ALD523D is organized to operate in conjunction with a 1K (128 bytes x 8 bits) bi-directional two-wire serial interface protocol EEPROM memory with page write (8 bytes) capability and has a typical 2 ms write cycle time ...
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DEFAULT PULL-UP AND PULL-DOWN RESISTORS Switches or jumpers can be used to interface the ALD523D control-input pins directly to the desired logic + level, either V or DGND, through 15-kΩ pull-up and 1- KΩ pull-down resistors. This method of connection ...
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ABSOLUTE MAXIMUM RATINGS + Supply voltage, V _______________________________________________________________________________ +6.7V Differential input voltage range ____________________________________________________________ -0 Power dissipation ________________________________________________________________________________ 1.2 W Operating temperature range __________________________________________________________________ 0 Storage temperature range _________________________________________________________________ -65 Lead temperature, 10 seconds _____________________________________________________________________ +260 Maximum allowable ...
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TIMING CHARACTERISTICS +5V 3.6864 MHz, internal system clock = f A XTL Parameter Display Only (Mode-C) Timing DATIN Setup Time Serial Clock Low Time Serial Clock ...
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DISPLAY ONLY (MODE-C) TIMING DVCS IN FROM SERIAL SOURCE t DIV SCLK* OUT TO SERIAL t SOURCE t DS NOT VALID MSB BIT DATIN IN FROM SERIAL SOURCE *Note: Default mode is SCLK, which can be inverted to produce SCLK ...
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ALD523D TO PC MODE-A REFERENCE CALIBRATION TIMING OUT TO ALD500 OUT TO t ALD500 AZ CAL IN FROM COUT IN FROM ALD500 SCLK OUT TO PC DVCS IN FROM PC DATOUT ...
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ALD523D PIN IDENTIFICATION FOR CALIBRATED REFERENCE MODE (MODE-A) PIN # SYMBOL 1 COUT 2 SDA 3 S1, SCL DSA1 DSA2 XTAL2 10 XTAL1 11 COUT 12 ...
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ALD523D PIN IDENTIFICATION FOR DISPLAY ONLY MODE (MODE-C) PIN # SYMBOL SDA 3 SCL DSA1 DSA2 XTAL2 10 XTAL1 CAL ...