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AKM 5381 PDF

ASAHI KASEI. [AKD].. / – 7 -. [ADC Plot: fs=48kHz]. AKM. AK THD+N vs. Input Level. VA=VD=V, fs=48kHz, fin=1kHz. AKM Semiconductor AKET. Explore Integrated Circuits (ICs) on Octopart: the fastest AKET. Dual Channel Dual ADC Delta-Sigma 96ksps bit. The AK achieves high accuracy and low cost by using Enhanced dual bit ∆Σ WARNING: AKM assumes no responsibility for the usage beyond the.

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The ADC outputs settle in the data corresponding to the input signals after the end of initialization Settling approximately takes the group delay time.

The passband and stopband frequencies scale with fs. Resolution 24 Bits Input Voltage Note 4 2. In slave mode, the internal timing starts clocking by the rising edge falling edge at mode 1 of LRCK after exiting from reset and power down state by MCLK. This time is from the input of an analog signal to the setting of 24bit data both channels to the ADC output register for ADC. The AK requires no external components because the analog inputs are single-ended.

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Lead frame surface treatment: An electrolytic capacitor 2. VA and VD are usually supplied from the analog supply in the system.


The AK includes an anti-aliasing filter RC filter to attenuate a noise around 64fs.

Input voltage is proportional to VA voltage. AKM sales office or authorized distributor concerning their current status. The input signal range scales with the supply voltage and nominally 0. Voltage Reference The zkm input to VA sets the analog input range. This reset should always be done after power-up.

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Table 1 shows the relationship of typical sampling frequency and the system clock frequency. Normal operation is not guaranteed at these extremes. All signals, especially clocks, should be kept away from the VCOM pin in order to avoid unwanted coupling into the AK System analog ground and digital ground should be connected together near to where the supplies are brought onto the printed circuit board.

No load current may be drawn from these pins. The cut-off frequency of the HPF is 1. Grounding and Power Supply Decoupling The AK requires careful attention to power supply and grounding arrangements.

All digital input pins should not be left floating.

AKM assumes no responsibility for the usage beyond the conditions in this datasheet. The digital filter rejects noise above the stop band except for multiples of 64fs.

Date Code Marketing Code: A hazard related device or system is one designed or intended for life support or maintenance of safety or for applications in medicine, aerospace, nuclear energy, or other ak, in which its failure to function or perform may reasonably be expected to result in loss of life or in significant injury or damage to person or property. An analog initialization cycle starts after exiting the power-down mode.


Alternatively if VA and VD are supplied separately, the power up sequence is not critical. Operation at or beyond these limits may result in permanent damage to the device.

The calculated delay time induced by digital filtering. This value is the full scale 0dB of the input voltage.

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The AK samples the analog inputs at 64fs. An evaluation board is available which demonstrates application circuits, the optimum layout, power supply arrangements and measurement results. In master mode, the internal timing starts when MCLK is input. Decoupling capacitors should be as near to the AK as possible, with the small value ceramic capacitor being the nearest. The reference frequency of these responses is 1kHz. The audio interface supports both master and slave modes.