2004 / 2005 RossGear and GearLite Terminal Equipment Catalog

74

Ross Video

• 24-bit DAC resolution

• Operates at 32, 44.1 and

48kHz sampling rates

• Auto EQ > 610m (2,000 ft.)

• Low jitter performance

through EQ range

• Input range from 100mV

to 2.5V pp

• Adjustable audio output level

-12 to -30dBFS

• Input OK and error indicators

• Two stereo audio outputs

• 5-year transferable warranty

• Power: 3.5 Watts

DAC-8516

AES / EBU to Analog Audio Converter

Program stream AES / EBU to analog audio conversion with 24-bit

DAC resolution.

The RossGear DAC-8516 AES / EBU to Analog Audio Converter is a broadcast quality

modular product used to convert 20 or 24-bit AES-3id (coaxial) signals to analog audio.

The DAC-8516 accepts one 32, 44.1 or 48 kHz sample rate unbalanced AES signal and

provides two outputs of stereo (A, B) analog audio.

Digital AES / EBU audio is input through a BNC connector on the rear of the frame. The

signal is auto-equalized, relocked and then converted to analog audio using a state-of-the-art

128X oversampled Delta Sigma Modulator. Two identical copies of the signal are output via

the plug-on module BNC to terminal block adapter. Input signal and internal processing errors

are detected and reported on the SMPTE 269M fault reporting bus. Error presence

is displayed on a card-edge LED.

A combination of Headroom jumper (18dB or 24dB) and Level Adjust potentiometers

(+/-6dB, one for each channel) provide an output level range of +12 dBu to +27 dBu.

Auto-detection Digital De-emphasis is available for all data rates.

ADC-8532

Analog Audio to AES / EBU Converter

A 24-bit analog to AES / EBU converter. Perfect for broadcast stream

conversion applications.

The RossGear ADC-8532 Analog Audio to AES / EBU Converter is a broadcast quality

modular product used to convert analog audio to 20 or 24-bit AES-3id (coaxial) signals.

The ADC-8532 accepts one stereo (A, B) analog audio input and outputs four unbalanced

AES signals at 32, 44.1 or 48 kHz sample rates.

The balanced analog audio signal is input through a terminal block to BNC adapter module

on the rear frame. Infinitely variable input level adjustments from +14 to +30 dBu are

available for the input analog audio signal. The A to D converter uses a state of the art

256X oversampling delta sigma modulator and filtering circuit to produce four identical

high-quality AES streams. Reference signal or processing errors are detected and reported

on the card-edge LEDs.

For 48 kHz AES, the RossGear

ADC-8532 is capable of referencing

to either an external analog video or

AES (DARS) reference. Referencing

to the external AES reference

guarantees a properly phased

AES output.

INTERPOLATE

&

OVERSAMPLE

EQ &

RECLOCK

AES IN

ANALOG OUT

FILTER

SMPTE FAULT

REPORTING

24 BIT DAC

CONTROL

LOGIC

▼

A x2

B x2

TO FRAME

N/C

N/C

N/C

N/C

AES In

Terminal

Block to

BNC Adapter

Analog Out A

Analog Out B

1

2

1

4

3

- G +

- G +

- G +

- G +

A

B

IN

AMPLIFIER &

FILTER

24 BIT A/D

AES/VIDEO

REFERENCE

PROCESSING

USER

SETTINGS

& STATUS

CONTROL

LOGIC

&

PROCESSING

▼

A

B

AES OR

ANALOG VIDEO

REFERENCE

AES OUT

AES

TRANSMITTER

& OUTPUT

DRIVERS

ANALOG IN

Rear frame

plug-on connector

• 24-bit conversion

• Selectable 32, 44.1, 48kHz

sampling rates

• +14 to +30dBu adjustable

input range

• 106dB S/N un-weighted

• AES / Video Ref Input OK and

error indicators

• Jitter <1ns

• Four AES outputs

• 5-year transferable warranty

• Power: 5.0 Watts

Rear frame

plug-on connector

AES Out

AES Out

AES Out

AES Out

Video/AES

Ref In

Terminal

Block to

BNC Adapter

Analog In

1

2

1

4

3

- G +

- G +

- G +

- G +

A

B

IN