Transcript
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
