YDA138
●Analog Characteristics (VSS=0V, VDDP=12V, Ta=25ºC, Frequency:1kHz, unless otherwise specified)
Digital Amplifier Section
Item
Condition
Symbol
PO
Min.
Typ.
10.0
20.0
18
Max.
Unit
W
Maximum Output (stereo) (THD+N=10%) RL=8Ω
Maximum Output (mono) (THD+N=10%)
Voltage Gain (at 1V input sensitivity)
Total Harmonic Distortion Rate (stereo)
(BW: 20kHz)
RL=4Ω
W
AV
dB
RL=8Ω, PO=1.0W
RL=4Ω, PO=10W
0.02
0.1
%
%
THD+N
Total Harmonic Distortion Rate (mono)
(BW: 20kHz)
Signal /Noise Ratio
RL=8Ω, PO=10W,
VOL[1:0]=H,H
VOL[1:0]=H,H
RL=8Ω, PO=10W
SNR
103
dB
(BW: 20kHz A-Filter)
Channel Separation Ratio
Maximum Efficiency
CS
η
-70
88
dB
%
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.
8Ω resistor and 30µH coil are used as an output load in order to obtain various digital amplifier characteristics.
Headphone Amplifier Section
Item
Condition
Symbol
Pho
Min.
Typ.
50.0
Max.
Unit
mW
Maximum Output (THD+N=10%)
Total Harmonic Distortion Rate
(BW: 20kHz )
RL=32Ω
RL=32Ω, Pho=30mW
THD+N
0.01
%
Signal /Noise Ratio
RL=32Ω, Pho=20mW,
VOL[1:0]=H,H
SNR
CS
95
dB
dB
(BW: 20kHz A-Filter )
Channel Separation Ratio
RL=32Ω, VOL[1:0]=H,H
-75
16
YAMAHA [ YAMAHA CORPORATION ]
