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AKD4635 Datasheet(PDF) 16 Page - Asahi Kasei Microsystems |
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AKD4635 Datasheet(HTML) 16 Page - Asahi Kasei Microsystems |
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16 / 81 page  [AK4635] Rev. 0.6 2007/10 - 16 - Parameter Symbol min typ max Units Control Interface Timing (3-wire Serial mode) CCLK Period tCCK 200 - - ns CCLK Pulse Width Low tCCKL 80 - - ns Pulse Width High tCCKH 80 - - ns CDTI Setup Time tCDS 40 - - ns CDTI Hold Time tCDH 40 - - ns CSN “H” Time tCSW 150 - - ns CSN “ ↓” to CCLK “↑” tCSS 50 - - ns CCLK “ ↑” to CSN “↑” tCSH 50 - - ns CCLK “ ↓” to CDTI (at Read Command) tDCD - - 70 ns CSN “ ↑” to CDTI (Hi-Z) (at Read Command) tCCZ - - 70 ns Control Interface Timing (I2C Bus mode): 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 33) 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 Capacitive Load on Bus Cb - - 400 pF Pulse Width of Spike Noise Suppressed by Input Filter tSP 0 - 50 ns Reset Timing PDN Pulse Width (Note 32, Note 33, Note 34) tPD 150 - - ns PMADC “ ↑” to SDTO valid (Note 35) ADRST bit = “0” tPDV - 1059 - 1/fs ADRST bit = “1” tPDV - 291 - 1/fs Note 32. I2C is a registered trademark of Philips Semiconductors. Note 33. RL = 1kΩ/10% change ( Pull-up to DVDD) Note 34. The AK4635 can be reset by the PDN pin = “L” Note 35. This is the count of FCK “ ↑” from the PMADC = “1”. |
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