*) DIGITAL AUDIO PROCESSOR

1. 개요

본 기기는 DANTE 연결을 지원하는 디지털 시그널 프로세서이며 다음과 같은 규격에 준한다.

2. 기능 및 특성

Networked open architecture digital audio processor

64 x 64 channel, dual-redundant Dante/AES67 audio transport

10 high-headroom analogue mic/line inputs

6 electronically balanced, low impedance line level outputs

24 channels of freely assignable Acoustic Echo Cancellation

16 channel ULTRANET audio output bus

Class-compliant USB connection for integration with soft codec conferencing applications

System configuration and control via ethernet

Embedded HTML engine to serve custom control pages

Embedded media engine for audio playback and recording

RS232 connector for interfacing with 3rd party control systems

6 user-configurable general purpose input output connections (GPIO)

Auto-ranging universal power supply

3. 규격 및 사양

Performance

Frequency response	: 20 Hz to 20 kHz	(±1 dB, input to output @ +4 dBu)

THD+N (1kHz @ 0 dB gain, +4 dBu output)	: < 0.005% (Bandwidth = 20 Hz-20 KHz)

Equivalent input noise	: -125 dBu (Bandwidth= 20 Hz-20 KHz,	gain = 66 dB, RS = 150 Ω)

Dynamic range	: > 105 dB	(Bandwidth = 20 Hz-20 KHz, none weighted)

A/D - D/A conversion	: multi-bit ΣΔ

AEC Module

- Support 6 AEC Modules (Up to 24 channels totally)

- Each AEC module tail length setting options	: 150ms with 4 channels or 300ms with 2 channels

- Each AEC Module can set individually

AEC convergence	: up to 100 dB/sec

Dimensions (HxWxD)	: 44 x 483 x 293 mm

Weight	: 3.6 kg

Analogue Inputs

Number of channels	: 10

Type	: Analogue, electronically balanced Euroblock	connectors

Impedance	: 10 kΩ

Maximum input level	: +24 dBu

Gain range	: 0 to +66 dB with step 6 dB

Common mode rejection	: Typically, 60 dB at 1 kHz

Crosstalk (inter-channel @ 1 kHZ)	: < -75 dB

Phantom power	: +48 VDC, 7mA per channel

Analogue Outputs

Number of channels	: 6

Type	: Analogue, electronically balanced Euroblock	connectors

Output impedance	: 200 Ω, balanced

Maximum output level	: -31 dBu to +24 dBu

Dante Input / Output Characteristics

Number of channels	: 64 input / 64 output

Connector	: 2 x RJ45

Sample rate	: 48 kHz

Resolution	: 24-bit

Internal latency	: < 1.8 ms

Dante latency	: 0.25 ms, 0.5 ms, 1.0 ms, or 5.0 ms	(set by Dante controller)

Clock synchronization	: Incoming Dante clock or Internal clock

ULTRANET Digital Network

Number of channels	: 16 out

Connector	: RJ45

Sampling rate	: 48 kHz

Latency	: < 1.8 ms

Cable	: Shielded CAT-5

Cable length	: Up to 75 m / 250 ft

USB Audio

Number of channels	: 2 in / 2 out

Resolution	: 16-bit

Sampling rate	: 48 kHz

Type	: Audio Class 1.0 compliant

Connector	: USB, type B

GPIO

Number of channels	: 6

Input voltage	: 0 to 5 V

Input impedance	: 4.7 kΩ to +5 V (2-wire mode),	> 1 MΩ (3-wire mode)

Output voltage	: 0 / 5 V (unloaded)

Output impedance	: 550 Ω (source), 10 Ω (sink)

Output current	: -1 mA (source) (Vo ≥4 V),	20 mA (sink), (Vo ≤ 0.4 V)

+5 V supply current	: 150 mA max

RS232

Format	: 8-N-1, 38,400 baud

Connector	: DB9 female

* DM8500 동급이상품