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AS5040 Folha de dados(PDF) 25 Page - ams AG |
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AS5040 Folha de dados(HTML) 25 Page - ams AG |
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25 / 28 page ![]() AS5040 10-BIT PROGRAMMABLE MAGNETIC ROTARY ENCODER Revision 1.6, 03-Oct-06 www.austriamicrosystems.com Page 25 of 28 16.7 Programming Conditions (operating conditions: Tamb = -40 to +125°C, VDD5V = 3.0-3.6V (3V operation) VDD5V = 4.5-5.5V (5V operation) unless otherwise noted) Parameter Symbol Min Typ Max Unit Note Programming enable time t Prog enable 2 µs Time between rising edge at Prog pin and rising edge of CSn Write data start t Data in 2 µs Write data valid t Data in valid 250 ns Write data at the rising edge of CLKPROG Load programming data t Load PROG 3 µs Rise time of VPROG before CLK PROG t PrgR 0 µs Hold time of VPROG after CLK PROG t PrgH 0 5 µs Write data – programming CLK PROG CLK PROG 250 kHz CLK pulse width t PROG 1.8 2 2.2 µs During programming; 16 clock cycles Hold time of Vprog after programming t PROG finished 2 µs Programmed data is available after next power-on Programming voltage V PROG 7.3 7.4 7.5 V Must be switched off after zapping Programming voltage off level V ProgOff 0 1 V Line must be discharged to this level Programming current I PROG 130 mA During programming Analog read CLK CLKAread 100 kHz Analog readback mode Programmed zener voltage (log.1) Vprogrammed 100 mV Unprogrammed zener voltage (log. 0) Vunprogrammed 1 V VRef-VPROG during analog readback mode (see 9.6) |
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