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Input/Output Characteristics
DME64N/DME24N Owner’s Manual
61
Input/Output Characteristics
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)
DME64N DIGITAL INPUT CHARACTERISTICS
DME64N DIGITAL OUTPUT CHARACTERISTICS
DME64N/24N ELECTRICAL CHARACTERISTICS
(Output impedance of signal generator: 150Ω)
* CH INPUT 1-8 and CH OUTPUT 1-8 are provided on the DME24 only.
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.
DME24N ELECTRICAL CHARACTERISTICS
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
3kΩ
50 – 600Ω
Mics &
600Ω
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
15Ω
8Ω
75mW
150mW
Stereo
Phone Jack
40Ω
65mW
150mW
Output
Terminals
Actual
Source
Impedance
For Use
With
Nominal
Output Level
Connector
Nominal
Max. before
clip
CH OUTPUT
1 – 8
75Ω
600Ω Lines
+4dBu
(1.23V)
+24dBu
(12.28)
Euroblock
PHONES
15Ω
8Ω
75mW
150mW
Stereo
Phone Jack
40Ω
65mW
150mW
Terminal
Format
Data Length
Level
Connector
CASCADE IN
–
24-bit
RS422
D-SUB Half Pitch connector 68P
(Female)
Terminal
Format
Data Length
Level
Connector
CASCADE OUT
–
24-bit
RS422
D-SUB Half Pitch connector 68P
(Female)
Input
Output
RL
Conditions
Min.
Typ.
Max.
Units
CH INPUT
1 – 8
CH OUTPUT
1 – 8
600Ω GAIN = -60dB
-1.5
0.0
0.5
dB
Internal
OSC
PHONES
8Ω
-3.0
0.0
0.5
dB
Input
Output
RL
Conditions
Min.
Typ.
Max.
Units
CH INPUT
1 – 8
CH OUTPUT
1 – 8
600Ω GAIN = -60dB
-1.5
0.0
0.5
dB
Internal
OSC
PHONES
8Ω
-3.0
0.0
0.5
dB
Input
Output
RL
Conditions
Min.
Typ.
Max.
Units
CH INPUT
1 – 8
CH OUTPUT
1 – 8
600Ω GAIN = -60dB
2.0
4.0
6.0
dBu
GAIN = +10dB
2.0
4.0
6.0
dBu
Internal
OSC
PHONES
8Ω
-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
600Ω GAIN = -60dB
@20Hz – 20kHz
@+14dBu
0.1
%
GAIN = +10dB
@20Hz – 20kHz
@+14dBu
0.05
%
Internal
OSC
PHONES
8Ω
-30dBFS @1kHz,
phones level control:
max.
0.1
%
Input
Output
RL
Conditions
Min.
Typ.
Max.
Units
CH INPUT
1 – 8
CH OUTPUT
1 – 8
600Ω GAIN = -60dB
@20Hz – 20kHz
@+14dBu
0.1
%
GAIN = +10dB
@20Hz – 20kHz
@+14dBu
0.05
%
Internal
OSC
PHONES
8Ω
-30dBFS @1kHz,
phones level control:
max.
0.1
%
Input
Output
RL
Conditions
Min.
Typ.
Max.
Units
CH INPUT
1 – 8
CH OUTPUT
1 – 8
600Ω GAIN = -60dB
Master fader at
nominal level and
one Ch fader at
nominal level.
(Mixer mode)
-128
EIN
dBu
-64
dBu
600Ω GAIN = +10dB
Master fader at
nominal level and
one Ch fader at
nominal level.
(Mixer mode)
-82
dBu
–
PHONES
8Ω
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
600Ω 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
600Ω 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
–
GAIN +10dB PEAK
red LED:ON
25
27
29
dBu
GAIN +10dB SIGNAL green
LED:ON
-12
-10
-8
dBu
–
CH OUTPUT
1 – 8
PEAK red LED:ON
19
21
23
dBu
SIGNAL green LED:ON
-18
-16
-14
dBu
