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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AKM assumes no responsibility for the usage beyond the conditions in this datasheet. The audio interface supports both master and slave modes.
VA and VD are usually supplied from the analog supply in the system. Resolution 24 Bits Input Voltage Note 4 2.
The power up sequence between VA and VD is not critical. The cut-off frequency of the HPF is 1.
The AK includes an anti-aliasing filter RC filter to attenuate a noise around 64fs. 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 fields, 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. The AK requires no external components because the analog inputs are single-ended.
Alternatively if VA and VD are supplied separately, the power up sequence is not critical. 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.
Lead frame surface treatment: An electrolytic capacitor 2. All digital input pins should not be left floating.
AKM sales office or authorized distributor concerning their current status. The input signal range scales with the supply voltage and nominally 581. System analog ground and digital ground should be connected together near to where the supplies are brought onto the printed circuit board.
Профессиональные аудио-интерфейсы и их конвертеры (ЦАП/АЦП) | Manifold Studio
The ADC outputs settle in the data corresponding to the input signals after the end of initialization Settling approximately wkm the group delay time. The reference frequency of these responses is 1kHz. Input voltage 53811 proportional to VA voltage. In master xkm, the internal timing starts when MCLK is input. Grounding and Power Supply Decoupling The AK requires careful attention to power supply and grounding arrangements. All signals, especially clocks, should be kept away from the VCOM pin in order to avoid unwanted coupling into the AK A critical component is one whose failure to function or perform may reasonably be expected to result, whether directly or indirectly, in the loss of the safety or effectiveness of the device or system containing it, and which must therefore meet very high standards of performance and reliability.
Профессиональные аудио-интерфейсы и их конвертеры (ЦАП/АЦП)
If these clocks are not provided, the AK may draw excess current due to its use of internal dynamically refreshed logic. No load current may be drawn from these pins. Table 1 shows the relationship of typical sampling frequency and the system clock frequency.
The digital filter rejects noise above the stop band except for multiples of 64fs. Normal operation is not guaranteed at these extremes. The passband and stopband frequencies scale with fs. Voltage Reference The voltage input to VA sets the analog input range. In slave mode, the internal timing starts clocking by the rising edge falling edge at mode 1 of LRCK after exiting akkm reset and power down state by MCLK.
An evaluation board is available which demonstrates application circuits, the optimum layout, power supply arrangements and measurement results. An analog initialization cycle starts after exiting the power-down mode.
The calculated delay time induced by digital filtering. This value is the full scale 0dB of the input voltage. Before considering any use or application, consult the Asahi Kasei Microsystems Co.
Decoupling capacitors should be as near 581 the AK as possible, with qkm small value ceramic capacitor being the nearest. aom
The AK samples the analog inputs at 64fs. This reset should always be done after power-up. Operation at or beyond these limits may result in permanent damage to the device. Date Code Marketing Code: All voltages with respect to ground.