[AK4373]
Parameter
min
typ
max
Units
Speaker-Amp Characteristics: DAC → SPP/SPN pins, ALC=OFF, AVOL=0dB, DVOL=0dB, RL=8Ω, BTL,
HVDD=3.3V; unless otherwise specified.
Output Voltage (Note 19)
-
3.11
3.92
2.04
-
Vpp
Vpp
Vrms
SPKG1-0 bits = “00”, −0.5dBFS (Po=150mW)
SPKG1-0 bits = “01”, −0.5dBFS (Po=240mW)
SPKG1-0 bits = “10”, −0.5dBFS (Po=400mW)
3.13
4.71
S/(N+D)
-
20
50
50
20
97
-
-
-
dB
dB
dB
dB
Ω
SPKG1-0 bits = “00”, −0.5dBFS (Po=150mW)
SPKG1-0 bits = “01”, −0.5dBFS (Po=240mW)
SPKG1-0 bits = “10”, −0.5dBFS (Po=400mW)
S/N (A-weighted)
87
8
-
-
Load Resistance
Load Capacitance
-
-
30
pF
Speaker-Amp Characteristics: DAC → SPP/SPN pins, ALC=OFF, AVOL=0dB, DVOL=0dB, CL=3μF,
series=20Ω x 2, BTL, HVDD=3.8V; unless otherwise specified. (Figure 53)
R
Output Voltage
(Note 19)
S/(N+D)
SPKG1-0 bits = “10”, -0.5dBFS
-
6.37
-
Vpp
dB
SPKG1-0 bits = “10”, -0.5dBFS
-
58
-
(Note 20)
S/N (A-weighted)
Load Resistance (Note 21)
Load Capacitance (Note 21)
97
-
-
-
-
3
dB
Ω
μF
50
-
Mono Input: MIN+ pin (External Input Resistance=20kΩ) Single-ended Input MIN- pin is connected to VSS1 via input
capacitor.
Maximum Input Voltage (Note 22)
Gain (Note 23)
-
1.98
-
Vpp
HPBTL bit = “0”
MIN+ Æ HPL/HPR
-
-
-
-
0
-
-
-
-
dB
dB
dB
dB
HPG bit = “0”
HPBTL bit = “0”
HPG bit = “1”
HPBTL bit = “1”
HPG bit = “0”
HPBTL bit = “1”
HPG bit = “1”
MIN+ Æ HPL/HPR
+3.6
+6
MIN+ Æ HPL+/-, HPR+/-
MIN+ Æ HPL+/-, HPR+/-
MIN Æ SPP/SPN
+9.6
ALC bit = “0”, SPKG1-0 bits = “00”
ALC bit = “0”, SPKG1-0 bits = “01”
ALC bit = “0”, SPKG1-0 bits = “10”
ALC bit = “0”, SPKG1-0 bits = “11”
ALC bit = “1”, SPKG1-0 bits = “00”
ALC bit = “1”, SPKG1-0 bits = “01”
ALC bit = “1”, SPKG1-0 bits = “10”
ALC bit = “1”, SPKG1-0 bits = “11”
-0.07
+4.43
+6.43
+10.65
+12.65
+6.43
+8.43
+12.65
+14.65
+8.93
dB
dB
dB
dB
dB
dB
dB
dB
-
-
-
-
-
-
-
-
-
-
-
-
-
-
MS0991-E-00
2008/09
- 14 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
