YMF781 Просмотр технического описания (PDF) - Yamaha Corporation
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YMF781 Datasheet PDF : 14 Pages
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YMF781
●Analog Characteristics
Conditions: TOP=25℃, VDD=3.30V, SPVDD=3.30V
・SP Amplifier
Ｉtem
Ｍin. Ｔyp. Ｍax.
Gain Settings (Fixed)
±2
Minimum load resistance (RL)
8
Maximum Output Voltage Width (RL=8Ω)
5.5
Maximum Output Power (RL=8Ω, THD+N≦1.0%)
480
THD + N (RL=8Ω, f=1kHz, 330mW output)
0.03
Quiescent noise (A-filter: weighing filter)
-90
PSRR (f=1kHz)
Amplitude Center voltage
90
0.5×VDD
Differential Output Voltage
10
50
Connectable maximum load capacitance to SPOUT1,
1000
SPOUT2 terminal (*)
(*): MAX 1000pF can be connected to the SPOUT1 terminal and the SPOUT2 terminal.
・EQ Amplifier
Ｉtem
Possible Gain Setting Range
Maximum Output Voltage Amplitude
THD + N (f=1kHz)
Quiescent noise (A-filter)
Input Impedance
Feedback resistor between EQ2-EQ3
Ｍin.
10
20
Ｔyp.
3.0
-90
Ｍax.
30
0.05
・SP Volume
Ｉtem
Volume Setting Range
Volume Step Width
THD + N (f=1kHz)
Ｍin.
-30
Ｔyp.
1
Ｍax.
0
0.05
・EQ Volume
Ｉtem
Volume Setting Range
Volume Step Width
Quiescent noise (A-filter)
Maximum Output Current
Maximum Output Voltage Amplitude
Output Impedance
Ｍin.
-30
132
Ｔyp.
1
-90
1.65
300
Ｍax.
0
600
・HP Volume
Ｉtem
Volume Setting Range
Volume Step Width
Quiescent noise (A-filter)
Maximum Output Current
Maximum Output Voltage Amplitude
Output Impedance
Ｍin.
-30
132
Ｔyp.
1
-90
1.65
300
Ｍax.
0
600
・VREF
Ｉtem
VREF Voltage
Ｍin. Ｔyp. Ｍax.
0.5×VDD
・DAC
Ｉtem
Ｍin.
Resolution
Full scale Output Voltage
THD+N (f= 1kHz)
Quiescent noise (A-filter)
Frequency Characteristics (f=50Hz to 20kHz)
-3.0 (*)
(*) A drop of the high range response owing to the aperture effect.
Ｔyp.
16
1.65
-85
Ｍax.
0.5
80
+0.5
Ｕnit
times
Ω
Vp-p
mW
％
dBV
dB
V
mV
pF
Ｕnit
dB
Vp-p
％
dBV
MΩ
kΩ
Ｕnit
dB
dB
％
Ｕnit
dB
dB
dBV
μA
Vp-p
Ω
Ｕnit
dB
dB
dBV
μA
Vp-p
Ω
Ｕnit
V
Ｕnit
Bit
Vp-p
％
dBV
dB
11
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