Barracuda Networks SP4 Manuel d'utilisateur télécharger pdf (Page 93)

TECHNICAL SPEC

ENG

Axel Technology srl

www.axeltechnology.com

AUX IN (1 AND 2)

Connector Type

floating BNC, EMI suppressed

Pass-through Level

-40dB

+ 20 dB trimmer adj. max 24 Vpp input

Frequency response

30 Hz

80 KHz +/- 0.1 dB

Distortion

< 0.03 %

Input Impedance

> 10 Kohm

Purpose

MPX and SCA (RDS) Inputs –

Injection of a MPX Signal Routed

directly to Mpx Out (Split Option)

SYNC-OUT

Connector Type

floating BNC, EMI suppressed

Purpose

TTL-level (5Vpp) 19 kHz Pilot Ref. Out for synchronizing external

RDS coders.

Sync Out phase error

2 degrees (maximum)

MPX, RDS & MPX+RDS OUTPUTS

Output Connectors

Two BNC, floating over chassis ground, EMI suppressed

Load Impedance

600 Ohm or greater

Source impedance

10 Ohm

D/A Conversion

Burr Brown PCM1704

Maximum Load Capacitance

5nF

External MPX summation

With external MPX injected into Aux 1 (Aux 2 if selected by jumper)

Composite output level

- 9.0dBm to +15.0 dBm (0.1 dBm step)

ANALOG AUDIO INPUT

Connectors

Two EMI-suppressed XLR female.

Input Configuration

Stereo.

Input impedance

600 / 10K ohms electronically balanced, jumper selectable

Nominal Input Level (sensistivity)

Software adjustable from –-9dBm to +15.0 dBm

Level Range

–21.0dBu

+ 24.0dBu

Max Input Level

+ 24dBu

A/D Conversion

Crystal Semiconductor CS4224, 24 bit /48 Khz delta sigma converter.

Input CMRR

>60dB (20Hz-20kHz)

Headroom

10 dB (default) / 20 dB (Full Range Mode)

DIGITAL AUDIO INPUT

Connector Type

XLR female & optical tos/link. XLR transformer balanced & floating.

110 Ohm impedance

Input Configuration

Stereo.

Formats

AES3/EBU & Spdif

Input Rates

32/44.1/48/64/88.2/96KHz with automatic selection and jitter

correction

Nominal Level adj (sensitivity)

From 0.0dBFs to –24dBFs (0.1dBu Step)

Level Range

0.0 dBFs

-36dBFs

Dynamic Range (Rate Converter)

124dB (32Khz) – 126dB (44.1Khz) 126dB (48Khz) - 122dB (96Khz)

Resolution

16 / 24 bit

AUDIO LIMITER

Purposes

- Overcoming errors and distortions which usually appear as

undesired peaks (as high as 100 or more KHz of deviation, assuming

75 KHz mean value) on input audio program.

- Control of sudden level changes on input program (up to 3 dB)

- Compensation for slow input audio level changes (fading)

- Increasing of output MPX density

- Application of a smooth (logarithmic) clipping process to incoming

audio to reduce out-of-band noise and therefore improve Rds and Aux

signals quality

Limiter stage sources

Audio limiter applies to both analog and digital input sources.

1 2 ... 88 89 90 91 92 93 94 95 96 97 98 ... 117 118

Commentaires sur ces manuels

Pas de commentaire

Barracuda Networks SP4 Manuel d'utilisateur Page 93

Commentaires sur ces manuels

Produits connexes et manuels pour Mise en réseau Barracuda Networks SP4