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AK4647VQ Datasheet, PDF (44/72 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP-AMP | |||
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ASAHI KASEI
[AK4647]
 ÏοÏ
ÏΥϯÎϯÏ(HPL/HPR pins)
ÏοÏ
ÏΥϯÎϯÏͷిݯ͸HVDDÍÎÍÚ
ÚÎÎ͢ɻίÏϯిѹ͸HVDD/2Ͱ͢ɻà·Õà°ß
͸16Ω (min)Ͱ
͢ɻà¥à¾à°¿Ñ¹Í¸HPG bitͰ੾ÎସÍÎÍͱÍÍ°ÍÎÍ¢(Table 39)É»
HPG bit
0
Output Voltage [Vpp]
0.6 x AVDD
Table 39. ÏοÏ
ÏΥϯͷà¥à¾à°¿Ñ¹
1
0.91 x AVDD
HPMTN bitÎ â0âÍ´Í¢ÎͱɺÏοÏ
ÏΥϯÎϯÏͷίÏϯిѹÎHVSSʹཱͪԼÍÎ͢ɻHPMTN bitÎ â1âÍ´
Í¢ÎͱίÏϯిѹÎHVDD/2ʹཱͪà§ÍÎ͢ɻÏοÏÏΠζ๷à¢Í·Í¨ÎʹɺMUTET pinͱάϥϯÏ
Øʹίϯ
ÏϯαÎàªà¬Í Î͢ɻཱͪà§ÍÊཱͪԼÍà£à°à¨ºÍ¸HVDDÍÎͼMUTET pinͷίϯÏÏ¯Î±Í´àµºà¾«Í Î͢ɻ
ྫ : MUTET pinͷίϯÏϯαC=1μF, HVDD=3.3VÍ·à§ß¹
ɾ ÏοÏ
ÏΥϯÎϯÏཱͪà§ÍÊཱͪԼÍà£à°à¨º: 100ms(typ), 250ms(max)
ɾ ׬શʹཱͪԼÍÎÎÍ°Í·à£Ø: 500ms(max)
PMHPL, PMHPR bitsÎ â0âÍ´Í¢ÎÍͱͰɺÏοÏ
ÏΥϯÎϯÏÎ׬શʹÏÏ«Êμ΢ϯ͢ÎÍͱÍÍ°ÍÎ͢ɻ
ÍÍ·à£ÉºHPL, HPR pins͸ âLâ (HVSS)ʹͳÎÎ͢ɻ
PMHPL bit,
PMHPR bit
HPMTN bit
HPL pin,
HPR pin
(1) (2)
(3)
(4)
Figure 33. ÏοÏ
ÏΥϯÎϯÏÍ·ÏÏ«ÊÎοÏÊμ΢ϯγÊÎϯε
(1) ÏοÏ
ÏΥϯÎϯÏÍ·ÏÏ«ÊÎοÏ(PMHPL, PMHPR bits = â1â)É»à¥à¾Í¸HVSSÍ·ÎÎͰ͢ɻ
(2) ÏοÏ
ÏΥϯÎϯÏͷίÏϯిѹཱͪà§Í(HPMTN bit = â1â)É»
(3) ÏοÏ
ÏΥϯÎϯÏͷίÏϯిѹཱͪԼÍ(HPMTN bit = â0â)É»
(4) ÏοÏ
ÏΥϯÎϯÏÍ·ÏÏ«Êμ΢ϯ(PMHPL, PMHPR bits = â0â)É»à¥à¾Í¸HVSSʹͳÎÎ͢ɻÏοÏԻ๷à¢
ͷͨÎɺÏοÏ
ÏΥϯÎϯÏͷίÏϯిѹÍ׬શʹԼÍͬͯÍÎÏÏ«ÊÎ¼Î¢Ï¯Í Í¯ÍÍ©ÍÍÉ»
MS0566-J-00
- 44 -
2006/11
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