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DAC8565 Datasheet(PDF) 5 Page - Texas Instruments |
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DAC8565 Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 46 page  www.ti.com PIN CONFIGURATIONS DAC8565 V A OUT V B OUT V H/V OUT REF REF AV DD LDAC ENABLE RSTSEL RST 1 2 3 4 16 15 14 13 V L REF GND V OUTC 5 6 7 V OUTD 8 IOV DD D IN 12 11 10 SCLK SYNC 9 DAC8565 SBAS411A – JUNE 2007 – REVISED NOVEMBER 2007 PW PACKAGE TSSOP-16 (Top View) PIN DESCRIPTIONS PIN NAME DESCRIPTION 1 VOUTA Analog output voltage from DAC A 2 VOUTB Analog output voltage from DAC B VREFH/ 3 Positive reference input / reference output 2.5V if internal reference used VREFOUT 4 AVDD Power supply input, 2.7V to 5.5V 5 VREFL Negative reference input 6 GND Ground reference point for all circuitry on the part 7 VOUTC Analog output voltage DAC C 8 VOUTD Analog output voltage DAC D Level-triggered control input (active low). This is the frame synchronization signal for the input data. When SYNC goes low, it enables the input shift register, and data are sampled on subsequent falling clock edges. The DAC output 9 SYNC updates following the 24th clock. If SYNC is taken high before the 24th clock edge, the rising edge of SYNC acts as an interrupt, and the write sequence is ignored by the DAC8565. Schmitt-Trigger logic Input. 10 SCLK Serial clock input. Data can be transferred at rates up to 50MHz. Schmitt-Trigger logic Input. Serial data input. Data are clocked into the 24-bit input shift register on each falling edge of the serial clock input. 11 DIN Schmitt-Trigger logic Input. 12 IOVDD Digital input-output power supply Asynchronous reset. Active low. If RST is low, all DAC channels reset either to zero-scale (RSTSEL = 0) or to 13 RST mid-scale (RSTSEL = 1). 14 RSTSEL Reset select. If RSTSEL is low, input coding is binary; if high = two's complement. 15 ENABLE Active low, ENABLE low connects the SPI interface to the serial port 16 LDAC Load DACs; rising edge triggered, loads all DAC registers Copyright © 2007, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s): DAC8565 |
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