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AS5145H-HSST Datasheet(PDF) 11 Page - ams AG |
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AS5145H-HSST Datasheet(HTML) 11 Page - ams AG |
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11 / 36 page  www.ams.com/AS5145 Revision 1.17 11 - 36 AS5145 Datasheet - Ti ming Character i s t ics 7 Timing Characteristics TAMB = -40 to +150 ºC, VDD5V = 3.0 to 3.6V (3V operation) VDD5V = 4.5 to 5.5V (5V operation), unless otherwise noted. Also valid for version I. Table 6. Timing Characteristics Symbol Parameter Conditions Min Typ Max Units Synchronous Serial Interface (SSI) tDOactive Data output activated (logic high) Time between falling edge of CSn and data output activated 100 ns tCLKFE First data shifted to output register Time between falling edge of CSn and first falling edge of CLK 500 ns TCLK/2 Start of data output Rising edge of CLK shifts out one bit at a time 500 ns tDOvalid Data output valid Time between rising edge of CLK and data output valid 413 ns tDOtristate Data output tri-state After the last bit DO changes back to “tri- state” 100 ns tCSn Pulse width of CSn CSn =high; To initiate read-out of next angular position 500 ns fCLK Read-out frequency Clock frequency to read out serial data >0 1 MHz Pulse Width Modulation Output fPWM PWM frequency Signal period = 4098µs ±10% at TAMB = -40 to +150ºC 220 244 268 Hz PWMIN Minimum pulse width Position 0d; angle 0 degree 0.90 1 1.10 µs PWMAX Maximum pulse width Position 4098d; angle 359.91 degrees 3686 4096 4506 µs Programming Conditions tPROG Programming time per bit Time to prog. a single fuse bit 10 20 µs tCHARGE Refresh time per bit Time to charge the cap after tPROG 1µs fLOAD LOAD frequency Data can be loaded at n x 2µs 500 kHz fREAD READ frequency Read the data from the latch 2.5 MHz fWRITE WRITE frequency Write the data to the latch 2.5 MHz |
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