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| DAC8718 Datasheet, PDF (13/60 Pages) Texas Instruments – Octal, 16-Bit, Low-Power, High-Voltage Output, Serial Input DIGITAL-TO-ANALOG CONVERTER | |||
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DAC8718
www.ti.com
SBAS467A â MAY 2009 â REVISED DECEMBER 2009
TIMING DIAGRAMS
Case 1: Standalone mode: Update without LDAC pin; LDAC pin tied to logic low.
t8
CS
SCLK
SDI
t4
t1
t2
t3
BIT 23 (MSB)
t5
t6
BIT 22
Input Data Register and
DAC Latch Updated
t7 When Correction Completes(1)
BIT 1
BIT 0
Low
LDAC
NOTE: (1) If the correction engine is off, the DAC latch is reloaded immediately after the DAC Data Register is updated.
Case 2: Standalone mode: Update with LDAC pin.
t8
CS
SCLK
SDI
t4
t1
t2
t3
BIT 23 (MSB)
t5
t6
BIT 22
Input Data Register Updated,
t7
but DAC Latch is Not Updated
BIT 1
BIT 0
LDAC
High
t9
t10
DAC Latch Updated(2)
NOTE: (2) The DAC latch is updated when LDAC goes low, as long as the timing requirement of t9 is satisfied.
= Donât Care
Bit 23 = MSB
Bit 0 = LSB
Figure 2. SPI Timing for Standalone Mode
Copyright © 2009, Texas Instruments Incorporated
Product Folder Link(s): DAC8718
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