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AS5040ASST 数据表(PDF) 8 Page - ams AG |
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AS5040ASST 数据表(HTML) 8 Page - ams AG |
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8 / 33 page  AS5040 Data Sheet www.austriamicrosystems.com Revision 2.10 8 - 33 Parameter Symbol Min Typ Max Unit Note Read-out frequency fCLK >0 1 MHz Clock frequency to read out serial data Pulse Width Modulation Output (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 0.927 0.976 1.024 Signal period = 1025µs ±5% at Tamb = 25°C PWM frequency f PWM 0.878 0.976 1.074 KHz =1025µs ±10% at Tamb = -40 to +125°C Minimum pulse width PW MIN 0.90 1 1.10 µs Position 0d; angle 0 degree Maximum pulse width PW MAX 922 1024 1126 µs Position 1023d; angle 359.65 degree Incremental Outputs (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 Incremental outputs valid after power-up t Incremental outputs valid 500 ns Time between first falling edge of CSn after power-up and valid incremental outputs Directional indication valid t Dir valid 500 ns Time between rising or falling edge of LSB output and valid directional indication 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 CLKPROG t PrgR 0 µs Hold time of VPROG after CLKPROG t PrgH 0 5 µs Write data – programming CLKPROG 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 Analog Readback Mode) |
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