YDA144 Datasheet, PDF (14/26 Pages) YAMAHA CORPORATION – STEREO 2.1W Non-Clip DIGITAL AUDIO POWER AMPLIFIER

ç
çYDA144
●Analog Characteristics
(V_SS=0V, V_DDP= V_DDA =3.6V, R_L=8Ω, Ta=25ºC, Non-Clip function=OFF, no snubber circuit, no schottky barrier diode,
unless otherwise specified)
Item
Symbol
Conditions
Min. Typ. Max.
Maximum output
P_O ^{RL=4Ω, f=1kHz,THD+N=10%, VDDP=VDDA=5V}
R_L=8Ω, f=1kHz,THD+N=10%
2.1
0.75
G0=L
12
Voltage Gain
A_V
G0=H
18
Total Harmonic Distortion Rate
(BW:20kHz)
THD+N R_L=8Ω, P_o=0.4W, f=1kHz
0.03
Residual Noise (A-Filter)
N Av=12dB
40
Signal /Noise Ratio
SNR Av=12dB
95
(BW:20kHz A-Filter)
Channel Separation Ratio
CS 1kHz
95
Power supply rejection ratio
PSRR 217Hz (to PVDD)
－85
Maximum Efficiency
Output offset voltage
η ^{RL=8Ω, Po=600mW}
R_L=8Ω, P_o=100mW
Vo
84
78
±20
Frequency characteristics
Non-Clip
maximum attenuation gain
f_RES C_IN =0.1µF, f=100Hz to 20kHz
Aa
－3
-
1
－10
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 or 4Ω resistor and 30µH coil are used as an output load in order to obtain various digital amplifier characteristics.
Unit
W
W
dB
dB
%
µVrms
dB
dB
dB
%
%
mV
dB
dB
14