AK4645AEZ Datasheet, PDF (45/85 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP-AMP

[AK4645A]
■ ΞφϩάϛΩγϯά: εςϨΦೖྗ(LIN2/RIN2/LIN4/RIN4 pins, AIN3 bit = “1”: LIN3/RIN3 pins)
PMAINL2=PMAINR2 bits = “1”ͷͱ͖ɺLIN2/RIN2 pins͸ΞφϩάϛΩγϯά༻εςϨΦೖྗͱͯ͠࢖༻Ͱ͖
·͢ɻLINH2 bit͓ΑͼRINH2 bitΛ “1”ʹ͢ΔͱϔουϑΥϯΞϯϓ͔Βग़ྗ͠ɺLINL2 bit͓ΑͼRINR2 bit
Λ “1”ʹ͢ΔͱεςϨΦϥΠϯग़ྗ͔Βग़ྗ͢Δ͜ͱ͕Ͱ͖·͢ɻ
PMAINL4=PMAINR4 bits = “1”ͷͱ͖ɺLIN4/RIN4 pins͸ΞφϩάϛΩγϯά༻εςϨΦೖྗͱͯ͠࢖༻Ͱ͖
·͢ɻLINH4 bit͓ΑͼRINH4 bitΛ “1”ʹ͢ΔͱϔουϑΥϯΞϯϓ͔Βग़ྗ͠ɺLINL4 bit͓ΑͼRINR4 bit
Λ “1”ʹ͢ΔͱεςϨΦϥΠϯग़ྗ͔Βग़ྗ͢Δ͜ͱ͕Ͱ͖·͢ɻ
ΞφϩάϛΩγϯάΛ࢖༻͍ͯ͠Δͱ͖ɺPMADL bit͓ΑͼPMADR bitΛ “1”ʹ͢ΔͱA/Dม͢·͖Ͱ͕׵ɻ
͜ͷͱ͖LIN2/RIN2/LIN4/RIN4 pinsͷೖྗΠϯϐʔμϯε͸MGAIN1-0 bits = “00”ͷͱ͖typ. 30kΩɺMGAIN1-0
bits = “01”, “10”, “11”ͷͱ͖typ. 20kΩͰ͢ɻ
AIN3 bit = “1”ͷͱ͖ɺMIN pins͸LIN3 pinsʹͳΓ·͢ɻPMAINL3=PMAINR3 bits = “1”ͷͱ͖ɺLIN3/RIN3 pins
͸ΞφϩάϛΩγϯά༻εςϨΦೖྗͱͯ͠࢖༻Ͱ͖·͢ɻ·ͨɺPMMICL=PMMICR=MICL3=MICR3 bits =
“1”ͷͱ͖ɺϛΩγϯάͰ͖Δ৴߸͕LIN3/RIN3 pinsೖྗ͔ΒMIC-Ampग़ྗʹ੾ΓସΘΓ·͢ɻLINH3 bit͓Α
ͼRINH3 bitΛ “1”ʹ͢ΔͱϔουϑΥϯΞϯϓ͔Βग़ྗ͠ɺLINL3 bit͓ΑͼRINR3 bitΛ “1”ʹ͢ΔͱεςϨ
ΦϥΠϯग़ྗ͔Βग़ྗ͢Δ͜ͱ͕Ͱ͖·͢ɻ
ΞφϩάϛΩγϯάΛ࢖༻͍ͯ͠Δͱ͖ɺPMADL bit͓ΑͼPMADR bitΛ “1”ʹ͢ΔͱA/Dม͢·͖Ͱ͕׵ɻ
LIN3/RIN3 pinsͷೖྗΠϯϐʔμϯε͸ɺMICL3=MICR3 bits = “0”Ͱ࢖༻͍ͯ͠Δ৔߹ɺMGAIN1-0 bits = “00”
ͷͱ͖typ. 30kΩɺMGAIN1-0 bits = “01”, “10”, “11”ͷͱ͖typ. 20kΩͰ͢ɻMICL3=MICR3 bits = “1”Ͱ࢖༻ͯ͠
͍Δ৔߹ɺMGAIN1-0 bits = “00”ͷͱ͖typ. 60kΩɺMGAIN1-0 bits = “01”, “10”, “11”ͷͱ͖typ. 30kΩͰ͢ɻ
֤ύεͷήΠϯ(typ)ΛTable 34, Table 35, Table 36ʹࣔ͠·͢ɻ
AK4645A
LIN1/IN1− pin
INL1-0 bits
RIN1/IN1+ pin
MDIF1 bit ^MIC-Amp
ADC Lch
RIN2/IN2− pin
LIN2/IN2+ pin
MIN/LIN3 pin
RIN3 pin
LIN4/IN4+ pin
RIN4/IN4− pin
INR1-0 bits
MDIF2 bit ^MIC-Amp
ADC Rch
MS0986-J-00
Lineout, HP-Amp
Figure 33. ΞφϩάϛΩγϯάճ࿏(εςϨΦೖྗ)
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2008/07