YDA143 Datasheet, PDF (17/22 Pages) YAMAHA CORPORATION – D- 3M STEREO 15W DIGITAL AUDIO POWER AMPLIFIER

YDA143
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●Analog Characteristics (V_SS=0V, V_DDP=12V, Ta=25ºC, Frequency:1kHz, unless otherwise specified)
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Digital Amplifier Section
Item
Condition
Symbol Min. Typ. Max. Unit
Maximum Output (THD+N=10%)
R_L=4Ω
P_O
15.0
W
Voltage Gain (at 1V input sensitivity)
A_V
18
dB
Total Harmonic Distortion Rate
(BW: 20kHz)
R_L=4Ω, P_O=1.5W THD+N
0.04
%
Signal /Noise Ratio
(BW: 20kHz A-Filter)
R_L=4Ω, P_O=15W,
GAIN[1:0]=H,H
SNR
103
dB
Channel Separation Ratio
GAIN[1:0]=H,H
CS
-65
dB
Maximum Efficiency
R_L=4Ω, P_O=15W
η
87
%
Output Offset Voltage
Vo
±20
mV
Note) All the values of analog characteristics were obtained by using our evaluation circumstance.
Depending upon parts and pattern layout to use, characteristics may be changed.
4Ω resistor and 30µH coil are used as an output load in order to obtain various digital amplifier characteristics.
Headphone Amplifier Section
Item
Maximum Output (THD+N=10%)
Total Harmonic Distortion Rate
(BW: 20kHz )
Signal /Noise Ratio
(BW: 20kHz A-Filter )
Channel Separation Ratio
Condition
R_L=32Ω
R_L=32Ω, P_ho=25mW
R_L=32Ω, P_ho=50mW,
GAIN[1:0]=H,H
GAIN[1:0]=H,H
Symbol
P_ho
Min.
THD+N
Typ. Max. Unit
50.0
mW
0.01
%
SNR
95
dB
CS
-75
dB
17