7700DA-AESB
Auto Equalizing Balanced AES/EBU Distribution Amplifier
The 7700DA-AESB is a five output DA with auto equalizing input and reclocking
for 110Ω balanced AES signals. The DA will automatically equalize AES signals
on Belden 1800B cable when the drive signal is 7V p-p. The DA will reclock data
with sampling frequencies of 32kHz, 44.1kHz, 48kHz and 96kHz.
The 7700DA-AESB occupies one card slot and can be housed in a 1RU frame
that will hold up to four modules, a 3RU frame that will hold up to 15 modules,
a 350FR portable frame, which will hold up to seven modules, or a standalone
enclosure that will hold one module.
The 7700DA-AESB card edge LED indicators provide quick and accurate
assessment of the incoming signal integrity. The 7700DA-AESB also provides a
contact closure output that can be configured using on-board jumpers to assert
when an input error condition exists.
Features & Benefits
• AES3-1992 standard for AES audio on 110Ω twisted pair cable
• Transformer coupled 110Ω balanced input (selectable Hi-Z)
• Data reclocking provides jitter reduction
• Automatic equalization
• EQ and reclock provide extended cable length compensation
• Five 110Ω balanced outputs
• Error LED indication for input PLL out of lock, parity error or biphase coding
error
• External indication of input error condition using contact closure output
Outputs
+
-
Output Drivers
AES INPUT
7700DA
-AESB
+
-
+
-
Equalizer
Balanced
AES
Output
AES
Reclocker
+
-
Input
Coupling
Balanced
+
AES Input
-
+
The Complete Solution Provider
-
AES OUTPUT
Error
LED
Specifications
AES Input:
Standard:
Connector:
Number of inputs:
Input Level:
Coupling:
Input Impedance:
Return Loss:
Equalization:
Sampling Frequency:
AES3-1992
3-pin removable terminal strip
1
2 to 7V p-p
Transformer
110Ω (selectable Hi-Z)
> 14dB 100kHz to 6MHz
Automatic to 300m with Belden
1800B (or equivalent) @ 48kHz AES
signal
32kHz, 44.1kHz, 48kHz and 96kHz
AES Output:
Number of Outputs:
Connector:
Output Level:
Output Impedance:
Return Loss:
5 per card Reclocked
3-pin removable terminal strip
5V p-p
110Ω
30dB 100kHz to 6MHz
Electrical:
Voltage:
Power:
EMI/RFI:
+12V DC
1.8W
Complies with FCC Part 15, Class A
EU EMC Directive
Physical (number of slots):
350FR:
1
7700FR-C:
1
7800FR:
1
Ordering Information
7700DA-AESB
Auto Equalizing Balanced AES/EBU Distribution Amplifier
Ordering Options
Rear Plate must be specified at time of order
(Eg: Model +3RU)
Rear Plate Suffix
+3RU
+SA
Enclosures
350FR
7700FR-C
7800FR
7801FR
S7701FR
3RU Portable Multiframe which holds up to 7 single slot modules
3RU Multiframe which holds up to 15 single slot modules
3RU Multiframe which holds up to 15 single slot modules
1RU Multiframe which holds up to 4 single or 2 dual slot modules
Standalone Enclosure
3RU Rear Plate for use with 350FR, 7700FR-C or 7800FR
Multiframe
Standalone Enclosure Rear Plate
Rev. 14-1
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