AK4645AEZ Datasheet, PDF (47/85 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP-AMP

[AK4645A]
■ ΞφϩάϛΩγϯά: ࠩಈϞϊϥϧೖྗ (L4DIF bit = “1”: IN4+/IN4− pins)
L4DIF bit = “1”ͷͱ͖ɺLIN4, RIN4 pins͸ͦΕͧΕIN4+, IN4− pinsʹͳΓ·͢ɻ
PMAINL4 bit = “1”ͷͱ͖ɺIN4+, IN4− pins͸ΞφϩάϛΩγϯά༻ࠩಈϞϊϥϧೖྗͱͯ͠࢖༻Ͱ͖·͢ɻ
LINH4 bit͓ΑͼRINH4 bitΛ “1”ʹ͢ΔͱϔουϑΥϯΞϯϓ͔Βग़ྗ͠ɺLINL4 bit͓ΑͼRINR4 bitΛ “1”ʹ
͢ΔͱεςϨΦϥΠϯग़ྗ͔Βग़ྗ͢Δ͜ͱ͕Ͱ͖·͢ɻ
֤ύεͷήΠϯ(typ)ΛTable 37, Table 38, Table 39ʹࣔ͠·͢ɻͨͩ͠ೖྗৼ෯͸(IN4+) − (IN4−)ͷ஋Ͱ͢ɻ
AK4645A
LIN4/IN4+ pin
MIC-Amp Lch
L4DIF bit ^{PMAINL4 bit}
RIN4/IN4− pin
MIC-Amp Rch
PMAINR4 bit
Lineout, HP-Amp
Figure 37. Full-differential Mono Analog Mixing Circuit
LOVL bit
IN4+/IN4− Æ LOUT/ROUT
0
−6dB
(default)
1
−4dB
Table 37. IN4+/IN4− Input Æ LOUT/ROUT Output Gain (typ)
LOVL bit
IN4+/IN4− Æ LOP/LON
0
0dB
(default)
1
+2dB
Table 38. IN4+/IN4− Input Æ LOP/LON Output Gain (typ)
HPG bit
IN4+/IN4− Æ HPL/HPR
0
−6dB
(default)
1
−2.4dB
Table 39. IN4+/IN4− Input Æ Headphone-Amp Output Gain (typ)
MS0986-J-00
- 47 -
2008/07