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DS8102+ Datasheet(PDF) 4 Page - Maxim Integrated Products |
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DS8102+ Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 9 page Dual Delta-Sigma Modulator and Encoder 4 _______________________________________________________________________________________ Pin Description PIN NAME FUNCTION 1 DGND Digital Ground 2 AGND Analog Ground 3 VREF Reference Voltage Input/Output. When APDREF = 0, the buffered internal voltage reference is driven on this pin as an output and can be used by other devices. When APDREF = 1, an external voltage reference must be provided on this pin. 4 AN1- Negative Input for Differential Analog Input Channel 1 5 AN1+ Positive Input for Differential Analog Input Channel 1 6 AN0- Negative Input for Differential Analog Input Channel 0 7 AN0+ Positive Input for Differential Analog Input Channel 0 8, 16 VDD Digital and Analog Power Supply 9 CLKSEL Clock Select Input. When CLKSEL = 0, the DS8102 uses its internal 8MHz oscillator as a clock source. When CLKSEL = 1, the DS8102 operates from an external clock source (which must be provided at CLKIO). 10 G0 Gain Select Input 0. This pin, along with G1, is used to select the gain setting for differential analog input channel 0. 11 G1 Gain Select Input 1. This pin, along with G0, is used to select the gain setting for differential analog input channel 0. 12 CLKIO Clock Input/Output. When CLKSEL = 0 (internal clock selected), the internal 8MHz clock is output on this pin and can be used by external devices. When CLKSEL = 1 (external clock selected), an external clock must be provided on this pin. 13 MNOUT Manchester Encoder Output. This output pin provides a Manchester-encoded bit stream containing output bits from both modulators interleaved with an alternating synchronization bit. 14 RST Reset. This input pin can be used to force the DS8102 into a shutdown (low-power) state by driving RST = 0. If the external reset function is not used, this pin must be connected to VDD for proper operation. An RC circuit is not required on this pin for power-up, as this function is provided internally. 15 APDREF Analog Power-Down Reference. This input pin controls whether the internal voltage reference is enabled. If APDREF = 0, the internal voltage reference is enabled and the voltage reference level is driven out on VREF. If APDREF = 1, the internal voltage reference is disabled and an external voltage reference must be provided on VREF. |
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