AK5701VNP AKM Semiconductor Inc, AK5701VNP Datasheet - Page 38

• Manufacturer Part Number: AK5701VNP
• Description: IC ADC AUDIO STER 16BIT 24QFN
• Manufacturer: AKM Semiconductor Inc
• Type: ADCr

Specifications of AK5701VNP

• Resolution (bits): 16 b
• Sampling Rate (per Second): 7.35k ~ 48k
• Data Interface: I²S, Serial
• Voltage Supply Source: Analog and Digital
• Voltage - Supply: 3V
• Operating Temperature: -30°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-WFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 974-1039-2; AK5701VNP

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The input digital volume becomes a manual mode when ALC bit is “0”. This mode is used in the case shown below.
IVL7-0 and IVR7-0 bits set the gain of the volume control (
timeout. Zero crossing timeout period is set by ZTM1-0 bits.
If IVL7-0 or IVR7-0 bits are written during PMADL=PMADR bits = “0”, IVOL operation starts with the written values
at the end of the ADC initialization cycle after PMADL or PMADR bit is changed to “1”.
MS0404-E-02
Input Digital Volume (Manual Mode)
1. After exiting reset state, set-up the registers for the ALC operation (ZTM1-0, LMTH and etc)
2. When the registers for the ALC operation (Limiter period, Recovery period and etc) are changed.
3. When IVOL is used as a manual volume.
For example; when the change of the sampling frequency.
IVL7-0
IVR7-0
EFH
F1H
F0H
92H
91H
90H
03H
02H
01H
00H
:
:
Table 29. Input Digital Volume Setting
GAIN (dB)
+35.625
−53.625
+35.25
+0.375
−0.375
−53.25
MUTE
+36.0
−54
0.0
:
:
- 38 -
Table 29
). The IVOL value is changed at zero crossing or
0.375dB
Step
(default)
[AK5701]
2007/08