LEVEL DIAGRAM
+20dB
+10dB
0dB
-20dB
-30dB
-40dB
-10dB
+20dB
+10dB
0dB
-20dB
-30dB
-40dB
-10dB
LINE IN
-10dBFS
0dBFS=1.06Vrms
-20dBFS
-30dBFS
-40dBFS
A/D IN
50mVrms
(-26.5dBFS)
AK5358
H/P OUT
254mVrms/33
-12dB
-2-0.5dB
-6dB
200mVrms
+30dB
+10dB
-2+6.5=+4.5dB
MAX. SIGNAL LEVEL
DOLBY LIMIT LEVEL (ALLch-3dBFS)
GAIN Setting of MASTER VOL 0dB
・SW:YES(DIGITAL)
-2dB -0.5dB= -2.5dB
・SW:YES(ANALOG)
-2dB+ 6.5dB = +4.5dB
・SW:NONE(DIGITAL
)
-2dB+14dB -0.5dB=+11.5dB
・SW:NONE(ANALOG)
-2dB+14dB+6.5dB =+18.5dB
①
②
③
④
①:Basic OFFSET
of VOL=0dB (i
ndication va
lude)
②:OFFSET of SW
NONE
③:OFFSET of A/D
input
-2+14-
-2+14+6.5=16.5dB
-2.6dB
SW:NONE
-34dBFS(DIG.IN)
-20dBFS(DIG.IN)
-2.6dB
2.83Vrms=0dBFS
-10dBFS
-20dBFS
-30dBFS
-40dBFS
PCM1690
Differential Out
-2dB
-2.6dB
-2.6dB
R2A15218FP/R2A15220FP MAX. OUTPUT 3.8Vrms
PRE OUT
159mVrms
-26.5dBFS(A/D IN)
SW:NONE
-40.5dBFS(A/D IN)
AD IN=307.4mVrms
ACM2(DM-A409)Sens
itivity:
-38.8dB/Pa=11.48
m
V/Pa at94dB
S
PL@Operatio
n Vo
ltage 5.0V
(94dBSPL is expected to -11dBFS)
MIC IN
11.48mVrms
R2A15220FP ATT:0
d
B at AUTOSE
TUP
4.22Vrms:A/D FUL
L SCALE
-12dB
H/P OUT
AV7702
LEVEL DIAGRAM
FRONT ch
LINE IN
+
R2A15220FP
PRE OUT
R2A15220FP
GAIN
ADJ.
+
+
DSP
PCM1690
D/A
-
-
+
PLD
HDAM
EXT IN
Balanced
OUT
Att.
111