Datasheet

AD7766
Rev. C | Page 19 of 24
DAISY-CHAIN MODE CONFIGURATION AND TIMING DIAGRAMS
06449-013
SYNC/PD
MCLK
CS
SDISDI SDO
SCLK
AD7766
(D)
SCLK
CS
SYNC/PD
SYNC/PD
MCLK
CS
SDI SDO
SCLK
AD7766
(C)
SYNC/PD
MCLK
CS
SDI SDO
SCLK
AD7766
(B)
SYNC/PD
MCLK
CS
SDI SDO
DRDY
SCLK
AD7766
(A)
MCLK
Figure 36. Daisy-Chain Configuration with Four AD7766 Devices
06449-014
MCLK
DRDY (A)
SCLK
SDO (A)
SDI (A) = SDO (B)
SDI (B) = SDO (C)
SDI (C) = SDO (D)
CS
1 8 × n
AD7766 (A) AD7766 (B) AD7766 (C) AD7766 (D) AD7766 (A)
AD7766 (B) AD7766 (C) AD7766 (D) AD7766 (B)
AD7766 (C) AD7766 (D) AD7766 (C)
AD7766 (D) AD7766 (D)
24 × t
SCLK
24 × t
SCLK
24 × t
SCLK
24 × t
SCLK
Figure 37. Daisy-Chain Timing Diagram (n = 1 for AD7766, n = 2 for AD7766-1, n = 4 for AD7766-2) When Driving the AD7766
06449-015
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