Datasheet ADIS16480 (Analog Devices) - 8

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Data Sheet ADIS16480 TIMING SPECIFICATIONS
TA = 25°C, VDD = 3.3 V, unless otherwise noted.
Table 2. Normal Mode Parameter Description Min1 Typ Max1 Unit
fSCLK Serial clock 0.01 15 MHz t 2 STALL Stall period between data 2 µs tCLS Serial clock low period 31 ns tCHS Serial clock high period 31 ns t Chip select to clock edge 32 ns CS tDAV DOUT valid after SCLK edge 10 ns tDSU DIN setup time before SCLK rising edge 2 ns tDHD DIN hold time after SCLK rising edge 2 ns tDR, tDF DOUT rise/fall times, ≤100 pF loading 3 8 ns tDSOE CS assertion to data out active 0 11 ns tHD SCLK edge to data out invalid 0 ns tSFS Last SCLK edge to CS deassertion 32 ns tDSHI CS deassertion to data out high impedance 0 9 ns t1 Input sync pulse width 5 µs t2 Input sync to data invalid 635 µs t3 Input sync period 417 µs 1 Guaranteed by design and characterization, but not tested in production. 2 See Table 3 for exceptions to the stall time rating.
Table 3 Register Specific Stall Times Register Function Minimum Stall Time (μs)
FNCTIO_CTRL Configure DIOx functions 60 FLTR_BNK0 Enable/select FIR filter banks 320 FLTR_BNK1 Enable/select FIR filter banks 320 NULL_CFG Configure autonull bias function 10 GLOB_CMD[1] Self-test 12,000 GLOB_CMD[2] Memory test 50,000 GLOB_CMD[3] Flash memory update 375,000 GLOB_CMD[6] Flash memory test 75,000 GLOB_CMD[7] Software reset 12,000
Timing Diagrams CS t t CS CHS tCLS tSFS 1 2 3 4 5 6 15 16 SCLK t t DSOE DAV tHD t t DR DSHI DOUT MSB DB14 DB13 DB12 DB11 DB10 DB2 DB1 LSB t t DSU DHD tDF DIN R/W A6 A5 A4 A3 A2 D2 D1 LSB
002 10278- Figure 2. SPI Timing and Sequence Rev. G | Page 7 of 44 Document Outline Features Applications General Description Functional Block Diagram Revision History Specifications Timing Specifications Timing Diagrams Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Basic Operation Register Structure SPI Communication Device Configuration Dual Memory Structure Reading Sensor Data User Registers Output Data Registers Inertial Sensor Data Format Rotation Rate (Gyroscope) Acceleration Delta Angles Delta Velocity Magnetometers Roll, Pitch, Yaw Angles Initial Conditions Quaternion Euler Angles Rotation Matrix Data Barometer Internal Temperature Status/Alarm Indicators Firmware Revision Product Identification Digital Signal Processing Gyroscopes/Accelerometers Averaging/Decimation Filter Magnetometer/Barometer FIR Filter Banks Filter Memory Organization Default Filter Performance Extended Kalman Filter Algorithm Covariance Terms Reference Frame Reference Transformation Matrix Declination Adaptive Operation Adaptive EKF Enable Bit Automatic EKF Divergence Reset Control Bit Gyroscope Fade Control Bit Body Frame/Local Navigation Frame Bit Orientation Format Control Bit Magnetometer Disable Control Bit Gravity Removal Control Bit Linear Acceleration/Magnetic Disturbance Detection Calibration Gyroscopes Manual Bias Correction Manual Sensitivity Correction Linear Acceleration on Effect on Gyroscope Bias Accelerometers Manual Bias Correction Manual Sensitivity Correction Magnetometers Hard Iron Correction Soft Iron Correction Matrix Barometers Restoring Factory Calibration Point of Percussion Alignment Alarms Static Alarm Use Dynamic Alarm Use Alarm Example System Controls Global Commands Software Reset Automatic Self-Test Memory Management Flash Memory Test General-Purpose I/O Data-Ready Indicator Input Sync/Clock Control General-Purpose I/O Control Power Management General-Purpose Registers Real-Time Clock Configuration/Data Applications Information Mounting Tips Evaluation Tools Breakout Board, ADIS16IMU1/PCB PC-Based Evaluation, EVAL-ADIS2 Power Supply Considerations Outline Dimensions Ordering Guide