Owner`s manual
Page 7
Input and Output
The CEDAR ADA has analogue inputs and outputs at both professional and
consumer signal levels. The professional level signals are electronically balanced
and use XLR connectors, while the consumer signals are unbalanced and are
carried by RCA (phono) connectors. In each case, the input level is adjustable
over a range of 18dB, and the output level may be set to one of three levels, each
separated by 6dB.
There is a button to select professional or consumer input. Both outputs are active
at all times. There are also buttons to select the AES/EBU or SPDIF input or output
for the D/A and A/D sections.
You may dene the channel status bits embedded within the digital audio.
For sample rates of 32kHz, 44.1kHz and 48kHz, the status bits can be set to
Professional or Consumer mode. For sample rates above 48kHz, the status bits
will be forced to Professional mode because the ADA does not support Consumer
mode at these rates.
Front Panel LED
The LED on the front panel is normally lit to indicate that power is present. Flashing
indicates either (i) a loss of digital input or (ii) that the unit is being calibrated.
Block Diagram
Gain
Digital Send
Select
ADC
AES
T r ansmitter
Digital Source
Select
AES
Receiver
Frequency
Select
Master
Clock
Generator
Digital Input
AES/EBU
SPDIF
DAC
L
L
L
L
R
R
R
R
Consumer
Unbalanced
Digital Output
Analogue Output
Consumer
Unbalanced
Professional
Balanced
Recovered
Clock
Professional
Balanced
Analogue Input
Select
Analogue Input
Gain
AES/EBU
SPDIF