70 series
70 series
Digital Audio Distribution Amplifier with Level-control
DDA-70AES-L,-L(TR)
DDA-70 AES-L is an AES/EBU digital audio signal distribution amplifier with level-control feature. There are two
independent inputs and each one is distributed to 4 outputs respectively. Also it allows one input to be distributed to
8 outputs. The level-control feature is to adjust the levels of L and R for every output channel, in range of ±20dB. It
meets Sampling frequency 32kHz 44.1kHz and 48kHz, and performs re-clocking automatically. You can choose the
I/O connector from terminal type or BNC.
■ Features
✓ Level control of L and R for each output channels within ±20dB
✓ Fine level control of 0.1dB step
✓ 2 independent AES/EBU signals can be distributed to
4 outputs respectively
✓ One AES/EBU signal can be distributed to 8 outputs
by inner setting
✓ Built-in auto re-clocker
✓ Sampling frequency (32kHz/44.1kHz/48kHz) automatically switches according to the input signal
✓ Choose the I/O connector from BNC or terminal type at the time of purchase
✓ Two kinds of audio level control; Standard, Offset mode
CH2
CH1
CH1
CH2
CH 1
A ES I N
CH 2
+
AES IN
-
GND
1 I NPUT MODE
A E S OU T
1
5
+
1
MENU
- 5
GND
E NTE R
+
2
AES OUT
6
2
- 6
GND
+
3
AE S DI STRI BUTOR
DDA-70 AES-L
3
- 7
GND
7
+
4
- 8
GND
4
8
DDA-70AES-L
Front view
BNC type
DDA-70AES-L(TR)
Terminal type
DDA-70AES-L
Block Diagram
Standard Mode
Lch VOL.
P/S
AES/EBU
DRIVER
AES
OUT 1
P/S
AES/EBU
DRIVER
AES
OUT 2
P/S
AES/EBU
DRIVER
AES
OUT3
P/S
AES/EBU
DRIVER
AES
OUT4
P/S
AES/EBU
DRIVER
AES
OUT5
P/S
AES/EBU
DRIVER
AES
OUT6
P/S
AES/EBU
DRIVER
AES
OUT7
P/S
AES/EBU
DRIVER
AES
OUT8
P/S
AES/EBU
DRIVER
AES
OUT 1
P/S
AES/EBU
DRIVER
AES
OUT 2
P/S
AES/EBU
DRIVER
AES
OUT3
P/S
AES/EBU
DRIVER
AES
OUT4
P/S
AES/EBU
DRIVER
AES
OUT5
P/S
AES/EBU
DRIVER
AES
OUT6
P/S
AES/EBU
DRIVER
AES
OUT7
P/S
AES/EBU
DRIVER
AES
OUT8
Lch VOL.
Rch VOL.
Lch VOL.
AES IN
CH1
AES/EBU
RECEIVER
RECLOCKER
Rch VOL.
INPUT
VOL.
Lch VOL.
Rch VOL.
S/P
Rch VOL.
Lch VOL.
Lch VOL.
Rch VOL.
Lch VOL.
AES IN
CH2
Rch VOL.
AES/EBU
RECEIVER
INPUT
VOL.
1 input
mode
Lch VOL.
Rch VOL.
RECLOCKER
S/P
2 input
mode
Rch VOL.
Offset Mode
LRch VOL.
LRch VOL.
Lch VOL.
AES IN
CH1
AES/EBU
RECEIVER
RECLOCKER
INPUT
VOL.
OFFSET
VOL.
LRch VOL.
S/P
LRch VOL.
LRch VOL.
LRch VOL.
AES IN
CH2
AES/EBU
RECEIVER
RECLOCKER
INPUT
VOL.
OFFSET
VOL.
1 input
mode
S/P
2 input
mode
LRch VOL.
DDA-70AES-L
Operation Outline
Standard Mode
Offset Mode
MENU
【INVL】 INPUT AUDIO LEVEL
【OUTV】 OUTPUT AUDIO LEVEL
Adjusts and presets the input audio
level within ±20.0dB.
Adjusts and presets the output L/R
audio level within ±20.0dB for every
channel
MENU
【INVL】INPUT AUDIO LEVEL
Controls and presets the input
audio level within ±20.0dB.
【OUTV】OUTPUT AUDIO LEVEL
Controls the output audio level.
【ISEL】INPUT SELECT
Selects the distribution modes
【2INP】2 INPUT MODE
【1INP】1 INPUT MODE
【ISEL】 INPUT SELECT
Chooses the distribution mode
【2INP】 2 INPUT MODE
【1INP】 1 INPUT MODE
You can perform following operations by a front display, MENU, and ENTER buttons.
● Example of the front display (if you have preset the L side audio of AES OUT3 to -15.4dB)
Output channel of audio you changed (1 to 8ch)
Setting value of audio level (±20.0dB)
Identification of audio L/R channel (If an under bar is in left, it is audio L setting; if in right, it is audio R setting)
DDA-70AES-L
Specifications
Input Signals
・ AES IN CH1, CH2
2 × SMPTE276M, 0.3-3Vp-p/75Ω, via 2 BNC connectors
or 0.3-3Vp-p/110Ω, via 2 detaching type terminal 3pin connectors
Output Signals
・ AES OUT 1 to 8
8 × SMPTE276M, 1Vp-p±10%/75Ω, via 8 BNC connectors
or 2.3Vp-p±10%/110Ω, via 2 detaching type terminal 12pin
connectors
Operating Temperature
0 ˚C to 40 ˚C
Operating Humidity
20% to 80%RH non-condensing
Power Consumption
1.5VA (5V, 0.3A)
Performance
Input Characteristics
・ AES IN CH1, 2
Resolution
Sampling frequency
Input Signal amplitude
24bit
32 kHz / 44.1 kHz / 48kHz
BNC type: 0.3-3 Vp-p / 75Ω, Terminal type: 0.3-3Vp-p / 110Ω
Output Characteristics
・ AES OUT 1 to 8
Resolution
Sampling frequency
Output Signal amplitude
Output delay
Distortion
Sampling frequency
0dBFS level control
0dBFS level control
-20dBFS level control
0dB
-20dB
+20dB
24bit
32 kHz / 44.1kHz / 48kHz
BNC type: 1 Vp-p±10% / 75Ω, Terminal type: 2.3Vp-p±10% /
110Ω
< 60μs
48kHz
≤ 0.002% (1 kHz)
≤ 0.005% (1 kHz)
≤ 0.002% (1 kHz)
※All specifications and functions subject to change without notice. All rights reserved.
SR04,R00
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