YDA135 Datasheet, PDF (18/22 Pages) YAMAHA CORPORATION – STEREO 5W-20W DIGITAL AUDIO POWER AMPLIFIER CONTROLLER

YDA135
4. Analog characteristics (VSS=0V, VDD=5.0V, VDDP=12.0V, Ta=25℃, load impedance=4Ω, Frequency=1kHz）
Item
Maximum output
Symbol
PO
Condition
THD=0.1％
THD=1％
THD=10％
Min. Typ. Max. Unit
13
W
14
W
20
W
Voltage gain
(RI=8.2kΩ, RFB=39kΩ)
AV
35.1
dB
Total harmonic distortion
(Band Width: 20kHz )
THD+N Po=7W
0.03
％
Signal/noise ratio(A-Filter,
SNR Input sensitivity 150mV
97
dB
Band Width: 20kHz, Po=20W)
Channel separation
CS
Maximum efficiency
η
Output offset voltage
VO
Input sensitivity 1.0V
Load impedance=8Ω
Load impedance=4Ω
100
dB
80
dB
85
％
80
％
30
mV
Note: All analog characteristics shown above are the values obtained on the Yamaha's evaluation environment.
The characteristics may vary according to the Power MOSFET, coils, capacitors and pattern layout that are
used in the system.
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