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AK4160 Datasheet(PDF) 7 Page - Asahi Kasei Microsystems |
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AK4160 Datasheet(HTML) 7 Page - Asahi Kasei Microsystems |
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7 / 40 page  [AK4160] MS1313-E-01 2011/11 - 7 - SWITCHING CHARACTERISTICS (Ta = -40 °C ~ 85°C, VDD = 1.71V ~ 3.6V; unless otherwise specified) Parameter Symbol min typ max Units Touch Sensor Charge Time (Note 16) TCHG -15 - 15 % Sampling Rate (Note 17) TSR -35 - 35 % PWM Frequency Accuracy ACCF -35 - 35 % Reset Timing Reset Pulse Width (Note 18) tRSTN 10 - - us Reset Pin Pulse Width of Spike Noise Suppressed by Input Filter (Note 19) tRSTNS 0.5 - - us Start Up Timing Power up time (Note 20) tPU - - 1 ms Power up rise time tPR - - 20 ms Power up Interval time (Note 21) tPI 20 - - ms I2C SCL clock frequency fSCL - - 400 kHz Bus Free Time Between Transmissions tBUF 1.3 - - μs Start Condition Hold Time (prior to first Clock pulse) tHD:STA 0.6 - - μs Clock Low Time tLOW 1.3 - - μs Clock High Time tHIGH 0.6 - - μs Setup Time for Repeated Start Condition tSU:STA 0.6 - - μs SDA Hold Time from SCL Falling (Note 22) tHD:DAT 0 - - μs SDA Setup Time from SCL Rising tSU:DAT 0.1 - - μs Rise Time of Both SDA and SCL Lines tR - - 0.3 μs Fall Time of Both SDA and SCL Lines tF - - 0.3 μs Setup Time for Stop Condition tSU:STO 0.6 - - μs Pulse Width of Spike Noise Suppressed By Input Filter tSP 50 - - ns Capacitive load on bus Cb - - 400 pF Note 16. Variation against nominal value of TCHG (0.25us to 32us) Note 17. Variation against nominal value of TSR (4ms to 512ms) Note 18. The AK4160 can be reset by the RSTN pin = “L”. This is to initialize the AK4160 for sure. Note 19. Pulse width of spike noise suppressed by input filter of the RSTN pin. Note 20. Time as the starting point when reached VDD=1.71V and VREG=1.0V, with CREG=47nF. Note 21. The condition of “VDD=VSS” should be kept during the Power up Interval Time. Note 22. Data must be held for sufficient time to bridge the 300ns transition time of SCL. VIL RSTN tRSTN tRSTNS Figure 2. Reset Timing Diagram |
Similar Part No. - AK4160 |
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Similar Description - AK4160 |
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