link to page 9 link to page 9 AD7723t5t4t22.3VCLKIN0.8Vt3t1t7t6FSIt8t9SCOt9t10 01186-003 Figure 3. Serial Mode Timing for Clock Input, Frame Sync Input, and Serial Clock Output 32 CLKIN CYCLESCLKINt8FSI(SFMT = 1)t14SCO(CFMT = 0)t11FSO(SFMT = 0)tt1112FSO(SFMT = 1)t13 004 SDOD15D14D13D2D1D0D15D14 01186- Figure 4. Serial Mode 1: Timing for Frame Sync Input, Frame Sync Output, Serial Clock Output, and Serial Data Output (See Table 3 for Control Inputs, TSI = DOE) 32 CLKIN CYCLESCLKINt8FSIt14SCO(CFMT = 0)t11t12FSOt13SDOD2D1D0D15D14D13D12D11D5D4D3D2D1D0D15D14 01186-005 Figure 5. Serial Mode 2: Timing for Frame Sync Input, Frame Sync Output, Serial Clock Output, and Serial Data Output (See Table 3 for Control Inputs, TSI = DOE) Rev. C | Page 7 of 32 Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TERMINOLOGY TYPICAL PERFORMANCE CHARACTERISTICS CIRCUIT DESCRIPTION APPLYING THE AD7723 ANALOG INPUT RANGE ANALOG INPUT DRIVING THE ANALOG INPUTS APPLYING THE REFERENCE CLOCK GENERATION SYSTEM SYNCHRONIZATION DATA INTERFACING PARALLEL INTERFACE SERIAL INTERFACE TWO-CHANNEL MULTIPLEXED OPERATION SERIAL INTERFACE TO DSPs AD7723 TO ADSP-21xx INTERFACE AD7723 TO SHARC INTERFACE AD7723 TO DSP56002 INTERFACE AD7723 TO TMS320C5x INTERFACE GROUNDING AND LAYOUT OUTLINE DIMENSIONS ORDERING GUIDE