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AK4643 Datasheet(PDF) 6 Page - Asahi Kasei Microsystems |
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AK4643 Datasheet(HTML) 6 Page - Asahi Kasei Microsystems |
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6 / 104 page  ASAHI KASEI [AK4643] MS0476-E-01 2006/10 - 6 - Handling of Unused Pin The unused I/O pins should be processed appropriately as below. Classification Pin Name Setting Analog MPWR, VCOC/RIN3, SPN, SPP, HPR, HPL, MUTET, ROUT/RCN, LOUT/RCP, MIN/LIN3, RIN2/IN2 −, LIN2/IN2+, LIN1/IN1−, RIN1/IN1+ These pins should be open. MCKO This pin should be open. Digital MCKI This pin should be connected to DVSS. ABSOLUTE MAXIMUM RATINGS (AVSS, DVSS, HVSS=0V; Note 3) Parameter Symbol min max Units Power Supplies: Analog AVDD −0.3 6.0 V Digital DVDD −0.3 6.0 V Headphone-Amp / Speaker-Amp HVDD −0.3 6.0 V |AVSS – DVSS| (Note 4) ∆GND1 - 0.3 V |AVSS – HVSS| (Note 4) ∆GND2 - 0.3 V Input Current, Any Pin Except Supplies IIN - ±10 mA Analog Input Voltage (Note 5) VINA −0.3 AVDD+0.3 V Digital Input Voltage (Note 6) VIND −0.3 DVDD+0.3 V Ambient Temperature (powered applied) Ta −30 85 °C Storage Temperature Tstg −65 150 °C Maximum Power Dissipation Ta=85 °C (Note 8) Pd1 - 750 mW (Note 7) Ta=70 °C (Note 9) Pd2 - 1000 mW Note 3. All voltages with respect to ground. Note 4. AVSS, DVSS and HVSS must be connected to the same analog ground plane. Note 5. I2C, MIN/LIN3, RIN3, RIN2/IN2 −, LIN2/IN2+, LIN1/IN1−, RIN1/IN1+ pins Note 6. PDN, CSN/CAD0, CCLK/SCL, CDTI/SDA, SDTI, LRCK, BICK, MCKI pins Pull-up resistors at SDA and SCL pins should be connected to (DVDD+0.3)V or less voltage. Note 7. In case that the exposed pad is connected to the ground and PCB wiring density is 100%. If the exposed pad is open, Pd1=400mW(max: Speaker-Amp is not available.) and Pd2=550mW(max: Speaker-Amp is available at HVDD=2.6 ∼3.6V.). This power is the AK4643 internal dissipation that does not include power of externally connected speaker and headphone. Note 8. Speaker-Amp is available at HVDD=2.6 ∼3.6V. Note 9. Speaker-Amp is available at HVDD=2.6 ∼5.25V. WARNING: Operation at or beyond these limits may result in permanent damage to the device. Normal operation is not guaranteed at these extremes. |
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