EVAL-AD7767-1EDZ View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

EVAL-AD7767-1EDZ

24-Bit, 8.5 mW, 109 dB, 128/64/32 kSPS ADCs

Analog Devices 

DAISY CHAIN MODE CONFIGURATION AND TIMING DIAGRAMS

SYNC/PD

CS

SDI

SCLK

MCLK

SYNC/PD

CS

AD7767

SDI (D) SDO

SCLK

MCLK

SYNC/PD

CS

AD7767

SDI (C) SDO

SCLK

MCLK

SYNC/PD

CS

AD7767

SDI (B) SDO

SCLK

MCLK

SYNC/PD

CS

DRDY

AD7767

SDI (A) SDO

SCLK

MCLK

Figure 36. AD7767 Daisy Chain Configuration with Four AD7767 Devices

AD7767

MCLK

1

8×n

DRDY (A)

CS

SCLK

24 × tSCLK

24 × tSCLK

24 × tSCLK

24 × tSCLK

SDO (A)

AD7767 (A)

AD7767 (B)

AD7767 (C)

AD7767 (D)

AD7767 (A)

SDI (A) = SDO (B)

AD7767 (B)

AD7767 (C)

AD7767 (D)

AD7767 (B)

SDI (B) = SDO (C)

AD7767 (C)

AD7767 (D)

AD7767 (C)

SDI (C) = SDO (D)

AD7767 (D)

AD7767 (D)

Figure 37. AD7767 Daisy Chain Timing Diagram (n = 1 for AD7767, n = 2 for AD7767-1, n = 4 for AD7767-2) Driving the AD7767

MCLK

DRDY (A)

CS

SDO (A)

SCLK

SDI (A) = SDO (B)

1

MSB (A)

LSB (A) MSB (B)

LSB (B) MSB (C)

t16

MSB (B)

t17

LSB (B) MSB (C)

LSB (C) MSB (D)

Figure 38. AD7767 Daisy Chain SDI Setup and Hold Timing

Rev. 0 | Page 19 of 24

LSB (C)

LSB (D)

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