Datasheet

AD7767
Rev. C | Page 19 of 24
DAISY-CHAIN MODE CONFIGURATION AND TIMING DIAGRAMS
06859-013
SYNC/PD
MCLK
CS
SDISDI SDO
SCLK
AD7767
(D)
SCLK
CS
SYNC/PD
SYNC/PD
MCLK
CS
SDI SDO
SCLK
AD7767
(C)
SYNC/PD
MCLK
CS
SDI SDO
SCLK
AD7767
(B)
SYNC/PD
MCLK
CS
SDI SDO
DRDY
SCLK
AD7767
(A)
MCLK
Figure 36. Daisy-Chain Configuration with Four AD7767 Devices
06859-014
MCLK
DRDY (A)
SCLK
SDO (A)
SDI (A) = SDO (B)
SDI (B) = SDO (C)
SDI (C) = SDO (D)
CS
1 8 × n
AD7767 (A) AD7767 (B) AD7767 (C) AD7767 (D) AD7767 (A)
AD7767 (B) AD7767 (C) AD7767 (D) AD7767 (B)
AD7767 (C) AD7767 (D) AD7767 (C)
AD7767 (D) AD7767 (D)
24 × t
SCLK
24 × t
SCLK
24 × t
SCLK
24 × t
SCLK
Figure 37. Daisy-Chain Timing Diagram (n = 1 for AD7767, n = 2 for AD7767-1, n = 4 for AD7767-2) When Driving the AD7767
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MCLK
SDO (A)
SDI (A) = SDO (B)
SCLK
DRDY (A)
CS
MSB (A) LSB (A) MSB (B) LSB (B) LSB (C)MSB (C)
MSB (B) LSB (B) MSB (C) LSB (C) LSB (D)MSB (D)
1
t
16
t
17
Figure 38. Daisy-Chain SDI Setup and Hold Timing