AK5700VN AKM [Asahi Kasei Microsystems], AK5700VN Datasheet - Page 37
AK5700VN
Manufacturer Part Number
AK5700VN
Description
16-Bit ?? Mono ADC with PLL & MIC-AMP
Manufacturer
AKM [Asahi Kasei Microsystems]
Datasheet
1.AK5700VN.pdf
(61 pages)
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Part Number:
AK5700VN-L
Manufacturer:
AKM
Quantity:
20 000
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ASAHI KASEI
The input digital volume becomes a manual mode when ALC bit is “0”. This mode is used in the case shown below.
IVL7-0 bits set the gain of the volume control (Table 29). The IVOL value is changed at zero crossing or timeout. Zero
crossing timeout period is set by ZTM1-0 bits.
If IVL7-0 bits are written during PMADC bit = “0”, IVOL operation starts with the written values at the end of the ADC
initialization cycle after PMADC bit is changed to “1”.
MS0569-E-01
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
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
:
:
- 37 -
0.375dB
Step
Default
[AK5700]
2006/12
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