AD8021 datasheet(6/32 Pages) AD

부품명	AD8021

상세설명	Dual 8-,10-,12-Bit High Bandwidth Multiplying DACs with Serial Interface

PDF	32 Pages

Scroll/Zoom	100%

제조업체	AD [Analog Devices]

홈페이지	http://www.analog.com

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6 / 32 page

AD5429/AD5439/AD5449

Rev. 0 | Page 6 of 32

t10

t11

DB15

DB0

SCLK

DIN

LDAC1

LDAC2

SYNC

NOTES

1ASYNCHRONOUS LDAC UPDATE MODE

2SYNCHRONOUS LDAC UPDATE MODE

ALTERNATIVELY, DATA CAN BE CLOCKED INTO INPUT SHIFT REGISTER ON RISING EDGE OF SCLK AS

DETERMINED BY CONTROL BITS. TIMING AS ABOVE, WITH SCLK INVERTED.

Figure 2. Standalone Mode Timing Diagram

t12

DB15

(N)

DB15

(N+1)

DB0

(N)

DB0

(N+1)

DB15

(N)

DB0

(N)

SCLK

SYNC

SDIN

SDO

ALTERNATIVELY, DATA CAN BE CLOCKED INTO INPUT SHIFT REGISTER ON RISING EDGE OF SCLK AS

DETERMINED BY CONTROL BITS. IN THIS CASE, DATA WOULD BE CLOCKED OUT OF SDO ON FALLING

EDGE OF SCLK. TIMING AS ABOVE, WITH SCLK INVERTED.

Figure 3. Daisy-Chain and Readback Modes Timing Diagram

200

µAI

200

µAI

TO OUTPUT

50pF

VOH (MIN) + VOL (MAX)

Figure 4. Load Circuit for SDO Timing Specifications

AD8021 데이터시트(PDF) 6 Page - Analog Devices

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