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AK4642VN Datasheet, PDF (42/82 Pages) Asahi Kasei Microsystems – 16-Bit ΔΣ Stereo CODEC with MIC/HP/SPK-AMP | |||
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ASAHI KASEI
[AK4642]
 à¥à¾ÏϦϡÊÏ
AK4642͸MUTEÎØÎ0.5dBεÏοÏɺ256ϨÏϧͷνÏÏϧಠཱÏÎδλϧà¥à¾ÏϦϡÊÏ(DATT)Î಺à¬
Í Î͢ɻÍÍ·ÏϦϡÊÏ͸DACͷલà®Í´ÍÎɺà³à¾ÏÊλÎ+12dBÍÎâ115dBݮͰÎਰɺÎͨ͸ÏÏ¡ÊÏÍ
Î͢ɻDVOLC bitÎ â1âÍ´Í¢ÎͱɺDVL7-0 bitÍ°Lch, RchÍ·ÏϦϡÊÏÎà²à£Í´Î¯Ï¯ÏÏ©ÊϧͰÍÎ͢ɻDVOLC
bitÍ â0âÍ·à§ß¹ÉºLch, RchÍ·ÏϦϡÊÏ͸ಠཱʹίϯÏÏ©ÊϧͰÍÎ͢ɻÎͨɺATTàªà°ØÍ·àªÒ ͸1061ϨÏ
ϧÎͨ͸256/fsͰιÏÏàªÒ Í Î͢ɻàªÒ εÏοÏ͸DVTM bitÍ°àªà°Í Î͢ɻDVTM bit = â0âͷͱÍɺ
00H(+12dB)ÍÎFFH(MUTE)ÎͰʹ͸1061/fs(24ms@fs=44.1kHz)ÍÍÎÎ͢ɻ
DVL/R7-0
Gain
00H
+12.0dB
01H
+11.5dB
02H
+11.0dB
:
:
18H
0dB
:
:
FDH
â114.5dB
FEH
â115.0dB
FFH
MUTE (ââ)
Table 31. Digital Volume Code Table
Step
0.5dB
Default
DVTM bit
0
1
DVL/R7-0 bits = 00HÍÎFFHÎÍ°Í·àªÒ à£Ø
àªà°à®
fs=8kHz࣠fs=44.1kHzà£
1061/fs
256/fs
133ms
32ms
24ms
6ms
Table 32.à¥à¾ÏϦϡÊÏÍ·àªÒ à£Øàªà°
Default
MS0358-J-02
- 42 -
2005/04
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