AK4645EN Datasheet, PDF (54/96 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP-AMP

ASAHI KASEI
[AK4645]
„ 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 44, Table 45, Table 46ʹࣔ͠·͢ɻͨͩ͠ೖྗৼ෯͸(IN4+) − (IN4−)ͷ஋Ͱ͢ɻ
AK4645
LIN4/IN4+ pin
MIC-Amp Lch
L4DIF bit ^{PMAINL4 bit}
RIN4/IN4− pin
MIC-Amp Rch
PMAINR4 bit
Lineout, HP-Amp
Figure 44. Full-differential Mono Analog Mixing Circuit
LOVL bit
IN4+/IN4− Æ LOUT/ROUT
0
−6dB
Default
1
−4dB
Table 44. IN4+/IN4− Input Æ LOUT/ROUT Output Gain (typ)
LOVL bit
IN4+/IN4− Æ LOP/LON
0
0dB
Default
1
+2dB
Table 45. IN4+/IN4− Input Æ LOP/LON Output Gain (typ)
HPG bit
IN4+/IN4− Æ HPL/HPR
0
−6dB
Default
1
−2.4dB
Table 46. IN4+/IN4− Input Æ Headphone-Amp Output Gain (typ)
MS0543-J-00
- 54 -
2006/09