Yamaha DME24N, Дополнение к руководству пользователя

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The following notes supplement the information in the DME64N/DME24N Owner’s Manual
DME24N ANALOG INPUT CHARACTERISTICS
• 0dBu = 0.775 Vrms
• All AD converters (CH1-8) are 24-bit linear, 128 times oversampling.
• +48V DC (phantom power) is supplied to CH INPUT (1-8) connectors via each individual
controlled switch.
DME64N ANALOG OUTPUT CHARACTERISTICS
• 0dBu = 0.775 Vrms
• Stereo Phone Jack = unbalanced (Tip = LEFT, Ring = RIGHT, Sleeve = GND)
DME24N ANALOG OUTPUT CHARACTERISTICS
• 0dBu = 0.775 Vrms
• All AD converters (CH1-8) are 24-bit linear, 128 times oversampling.
• Stereo Phone Jack = unbalanced (Tip = LEFT, Ring = RIGHT, Sleeve = GND)
DME24N ANALOG CHARACTERISTICS
(Output impedance of signal generator: 150
Ω
)
Frequency Response 20Hz – 20kHz, reference to the nominal output level
@1kHz
Frequency Response fs = 96kHz@20Hz – 40kHz, reference to the nominal
output level @1kHz
Gain Error @1kHz
Total Harmonic Distortion fs = 48kHz
Total Harmonic Distortion fs=96kHz
Hum & Noise EIN = Equivalent Input Noise
• Hum & Noise are measured with a 6dB/octave filter @12.7kHz; equivalent to a 20kHz filter
with infinite dB/octave attenuation.
Dynamic Range
• Dynamic range are measured with a 6dB/octave filter @12.7kHz; equivalent to a 20kHz filter
with infinite dB/octave attenuation.
Crosstalk@1kHz
Maximum Voltage Gain@1kHz
Phantom Voltage
PEAK/SIGNAL Indicator Level
Terminals Gain
Actual
Load
Impedance
For Use
With
Nominal
Input Level
Connector
Nominal
Max.
before clip
CH INPUT
1 – 8 -60dB 3k Ω 50 – 600 Ω
Mics &
600
Ω
Lines
-60dBu
(0.775mV) -40dBu
(7.75mV) Euroblock
10dB 10dBu
(2.451V) 30dBu
(24.511V)
Output
Terminals
Actual
Source
Impedance
For Use With
Nominal
Output Level
Connector
Nominal
Max. before
clip
PHONES 15 Ω 8 Ω 75mW 150mW Stereo
Phone Jack
40 Ω 65mW 150mW
Output
Terminals
Actual
Source
Impedance
For Use With
Nominal
Output Level
Connector
Nominal
Max. before
clip
OUTPUT
1 – 8 150
Ω
600
Ω
Lines +4dBu
(1.23V) +24dBu
(12.28) Euroblock
PHONES 15 Ω 8 Ω 75mW 150mW Stereo
Phone Jack
40
Ω
65mW 150mW
Input Output RL Conditions Min. Typ. Max. Units
CH INPUT
1 – 8 CH
OUTPUT
1 – 8 600 Ω GAIN = -60dB -1.5 0.0 0.5 dB
Internal
OSC PHONES 8
Ω
-3.0 0.0 0.5 dB
Input Output RL Conditions Min. Typ. Max. Units
CH INPUT
1 – 8 CH
OUTPUT
1 – 8 600 Ω GAIN = -60dB -1.5 0.0 0.5 dB
Internal
OSC PHONES 8 Ω -3.0 0.0 0.5 dB
Input Output RL Conditions Min. Typ. Max. Units
CH INPUT
1 – 8 CH
OUTPUT
1 – 8 600
Ω
GAIN = -60dB 2.0 4.0 6.0 dBu
GAIN = +10dB 2.0 4.0 6.0 dBu
Internal
OSC PHONES 8 Ω -30dBFS @1kHz,
phones level control:
max. -2.0 0.0 2.0 dBu
Input Output RL Conditions Min. Typ. Max. Units
CH INPUT
1 – 8 CH
OUTPUT
1 – 8 600 Ω GAIN = -60dB
@20Hz – 20kHz
@+14dBu 0.1 %
GAIN = +10dB
@20Hz – 20kHz
@+14dBu 0.05 %
Internal
OSC PHONES 8 Ω -30dBFS @1kHz,
phones level control:
max. 0.1 %
Input Output RL Conditions Min. Typ. Max. Units
CH INPUT
1 – 8 CH
OUTPUT
1 – 8 600
Ω
GAIN = -60dB
@20Hz – 20kHz
@+14dBu 0.1 %
GAIN = +10dB
@20Hz – 20kHz
@+14dBu 0.05 %
Internal
OSC PHONES 8
Ω
-30dBFS @1kHz,
phones level control:
max. 0.1 %
Input Output RL Conditions Min. Typ. Max. Units
CH INPUT
1 – 8 CH
OUTPUT
1 – 8 600 Ω GAIN = -60dB
Master fader at
nominal level and
one Ch fader at
nominal level.
(Mixer mode) -128
EIN dBu
-64 dBu
600 Ω GAIN = +10dB
Master fader at
nominal level and
one Ch fader at
nominal level.
(Mixer mode) -82 dBu
Internal
OSC PHONES 8 Ω Residual output
noise, phones level
control: min. -86 dBu
Input Output RL Conditions Min. Typ. Max. Units
CH INPUT
1 – 8 CH
OUTPUT
1 – 8 600
Ω
GAIN = +10dB 106 dB
From/To To/From Conditions Min. Typ. Max. Units
CH N CH (N-1) or
(N+1) CH1 – 8, adjacent
inputs -80 dB
Input Output RL Conditions Min. Typ. Max. Units
CH INPUT
1 – 8 CH
OUTPUT
1 – 8 600
Ω
GAIN = -60dB 64 dB
Output Conditions Min. Typ. Max. Units
CH INPUT
1 – 8 hot, cold: No load 46 48 50 V
Input Output Conditions Min. Typ. Max. Units
CH INPUT
1 – 8 CH
OUTPUT
1 – 8 GAIN = +10dB PEAK
red LED: ON 19 21 23 dBu
GAIN = +10dB SIGNAL
green LED: ON -18 -16 -14 dBu
U.R.G., Pro Audio & Digital Musical Instrument Division, Yamaha Corporation
© 2005 Yamaha Corporation Printed in Japan