Specifications

International Radio and Electronics Corporation

25166 Leer Drive Elkhart, Indiana 46514 • 574–262–8900 • www.irec1.com

SPECIFICATIONS

All measurements referenced to 100% output. It is not possible to quantify the

specifications of the gain controlling functions of the AGC and limiter sections

due to the dynamic nature of the DP3 system under program conditions. To

properly evaluate these functions, there is only one known precise set of test gear

for that—your ears! Listen and judge carefully.

Audio performance *

• Frequency Response: ±0.2 dB, 50 Hz - 15 kHz

• System Distortion: 0.017% THD, flat or de-emphasized

• Signal-to-Noise Ratio: >80 dB, flat or de-emphasized

• Channel Separation: >85 dB, 10 Hz - 15 kHz

Analog I/O Section

• Left & Right Audio Inputs: 10 k ohms (or 600 ohms, configurable via on board jumpers) electronically balanced bridging

input, 20-bit analog-to-digital converter

• Maximum Input Level: +24 dBu

• Connector: XLR, female, EMI suppressed

• Discrete Left/Right Audio Outputs: 600 Ω load or greater, un-balanced, 18-bit digital-to-analog

converter, de-emphasized (50 or 75 µs via ETHERNET port configuration)

• Connector: Phono Jack

Digital I/O Section

• Configuration: Stereo AES/EBU ; automatic detection on Analog/Left input XLR.

• Input Sampling Rates: 32 kHz, 44.1 kHz, 48 kHz, sample rate converter provided

• Input Connector: XLR, female, balanced and floating

Composite I/O Section

• SCA / RBDS Subcarrier Input: BNC, unbalanced

• Impedance: 50 ohms

• Signal: 53 kHz subcarrier is summed into composite output.

• Software controls: Input level attenuation control in ETHERNET port configuration

Pilot Output

• Software control: Output level

Composite Output

• Composite Output Level: 0 – 6 Volts p-p, software adjustable (feeds exciter board).

Computer Interface

• Configuration: Ethernet 10/100.

• Communications: web browser

• Software-controlled (through the remote application).

Dimensions & Weight

• 5.5” x 10.75” plug-in card (14 x 27 cm)

In the interests of product improvement, Crown Broadcast reserves the right to change, add or modify any

specification.

* Test performance measured at the Audio Monitor Jacks on the rear panel