|
AK4645AEZ Datasheet, PDF (44/85 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP-AMP | |||
|
◁ |
[AK4645A]
â ιÏÏÏÏ¡ÊÏػೳ
DACà³à¾Í·ÏÎδλϧ෦ʹιÏÏÏÏ¡ÊÏػೳÎ಺à¬Í Î͢ɻιÏÏÏÏ¡ÊÏ͸SMUTE bitͰίϯÏÏ©Êϧ
Í°ÍÎ͢ɻSMUTE bitÎ â1âÍ´Í¢ÎͱDVTM bitÍ°àªà°Í ͨαΠΫϧͰà³à¾ÏÊλÍââ(â0â)ÎÍ°ÎÏÏÊγϣ
ϯÍÎÎ͢ɻSMUTE bitÎ â0âÍ´Í¢Îͱââà§à¬¶ÍÕ²à¦ÍÎɺââÍÎDVTM bitÍ°àªà°Í ͨαΠΫϧͰɺDVL/R7-0
bitsÍ°àªà°Í ͨÏϦϡÊÏà®ÎͰ෮͢ÎÍ Ø¼É»Î¹ÏÏÏÏ¡ÊÏÖà¢ÞɺDVTM bitÍ°àªà°Í ͨαΠΫϧÒ಺ʹ
Õ²à¦ÍÎÎͱÎÏÏÊγϣϯÍதà®
ÍÎɺà²Í¡Î±Î ΫϧͰɺDVL/R7-0 bitsÍ°àªà°Í ͨÏϦϡÊÏà®ÎͰ෮ؼ
Í ÎÍ¢(Figure 32)É»
SMUTE bit
DVL/R7-0 bits
A tte n u a tio n
DVTM bit
(1)
DVTM bit
(3)
-â
GD
GD
(2)
Analog O utput
Figure 32. ιÏÏÏÏ¡ÊÏػೳ
(1) DVTM bitÍ°àªà°Í ͨαΠΫϧͰà³à¾ÏÊλÍââ(â0â)ÎÍ°ÎÏÏÊγϣϯÍÎÎ͢ɻ
(2) ÏÎδλϧà³à¾Í´à¬°Í¢ÎÎÏϩάà¥à¾Í¸Üà®Ô(GD)Îà£ÍªÎ͢ɻ
(3) ιÏÏÏÏ¡ÊÏÖà¢ÞɺDVTM bitÍ°àªà°Í ͨαΠΫϧÒ಺ʹղà¦ÍÎÎͱÎÏÏÊγϣϯÍதà®
ÍÎɺ
à²Í¡Î±Î ΫϧͰɺDVL/R7-0 bitsÍ°àªà°Í ͨÏϦϡÊÏà®ÎͰ෮͢ÎÍ Ø¼É»
MS0986-J-00
- 44 -
2008/07
|
▷ |