AK4368 Datasheet, PDF (32/58 Pages) Asahi Kasei Microsystems – PLL & HP-AMP DAC

ASAHI KASEI
[AK4368]
„ εςϨΦϥΠϯग़ྗ (LOUT, ROUT pins)

ίϞϯిѹ͸0.475 x AVDDిѹͰɺෛՙ఍߅͸10kΩҎ্Ͱ͢ɻPMLO bit = “1”ͰύϫʔΞοϓ͠·͢ɻ֤ύ
εͷON/OFF͸ͦΕͧΕDACL, LINL, MINL, DACR, RINR, MINR bitsͰઃఆ͠·͢ɻLOG bit = “0”(R₁=100k),
ATTS3-0 bits = “0FH”(0dB)ͷͱ͖ՃࢉήΠϯ͸͍ͣΕͷύε΋0dB(typ)Ͱ͢ɻLOG bit = “1” (R₁= 50k)ͷͱ͖
DACग़ྗ৴߸ͷՃࢉήΠϯΛ+6dBʹ੾Γସ͑·͢ɻ
LIN/RIN pin
MIN pin
DACL/DACR
100k(typ)
LINL/RINR bit
100k(typ)
MINL/MINR bit
R1
DACL/DACR bit
100k(typ)
−
R2
+
R2
−
+
LOUT/ROUT pin
Figure 24. LOUT/ROUTͷՃࢉճ࿏(LOG bit = “0”ͷͱ͖)
„ Ξφϩάग़ྗϘϦϡʔϜ
LOUT/ROUTग़ྗ͸ɺLMUTE bit = “0”ͷ࣌ɺATTS3-0 bitͰϘϦϡʔϜίϯτϩʔϧՄೳͰ͢ (0dB ∼ −30dB, 2dB
step, Table 24)ɻLOUT/ROUTग़ྗͷϘϦϡʔϜΛ੾Γସ͑Δ࣌ɺϙοϓϊΠζ͕ൃੜ͠·͢ɻ


LMUTE
ATTS3-0
Attenuation
0FH
0dB
0EH
−2dB
0DH
−4dB
0
0CH
−6dB
:
:
:
:
01H
−28dB
00H
−30dB
1
x
MUTE
Default
Table 24. LOUT/ROUT Volume ATT஋(x: Don’t care)
MS0409-J-01
- 32 -
2005/08