Datasheet AD7653 (Analog Devices) - 7

AD7653 Data Sheet Table 4. Serial Clock Timings in Master Read after Convert DIVSCLK[1] 0 0 1 1 DIVSCLK[0] Symbol 0 1 0 1 Unit
SYNC to SCLK First Edge Delay Minimum t18 3 17 17 17 ns Internal SCLK Period Minimum t19 25 50 100 200 ns Internal SCLK Period Maximum t19 40 70 140 280 ns Internal SCLK HIGH Minimum t20 12 22 50 100 ns Internal SCLK LOW Minimum t21 7 21 49 99 ns SDOUT Valid Setup Time Minimum t22 4 18 18 18 ns SDOUT Valid Hold Time Minimum t23 2 4 30 80 ns SCLK Last Edge to SYNC Delay Minimum t24 3 55 130 290 ns BUSY HIGH Width Maximum (Warp) t28 1.5 2 3 5.25 µs BUSY HIGH Width Maximum (Normal) t28 1.75 2.25 3.25 5.55 µs BUSY HIGH Width Maximum (Impulse) t28 2 2.5 3.5 5.75 µs Rev. B | Page 6 of 28 Document Outline Features Applications General Description Functional Block Diagram Product Hightlights Revision History Specifications Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Definitions of Specifications Integral Nonlinearity Error (INL) Differential Nonlinearity Error (DNL) Full-Scale Error Unipolar Zero Error Spurious-Free Dynamic Range (SFDR) Effective Number of Bits (ENOB) Total Harmonic Distortion (THD) Signal-to-Noise Ratio (SNR) Signal-to-(Noise + Distortion) Ratio (S/[N+D]) Aperture Delay Transient Response Overvoltage Recovery Reference Voltage Temperature Coefficient Typical Performance Characteristics Circuit Information Converter Operation Modes of Operation Transfer Functions Typical Connection Diagram Analog Input Driver Amplifier Choice Voltage Reference Input Power Supply Power Dissipation vs. Throughput Conversion Control Digital Interface Parallel Interface Serial Interface Master Serial Interface Internal Clock Slave Serial Interface External Clock External Discontinuous Clock Data Read After Conversion External Clock Data Read During Conversion Microprocessor Interfacing SPI Interface (ADSP-2191M) Application Hints Bipolar and Wider Input Ranges Layout Outline Dimensions Ordering Guide