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Audio specifications – Grass Valley CR Series v.3.2 User Manual

Page 144

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132

Technical Details

Audio Specifications

CR Series Analog Video Specifications

Audio Specifications

CR Series Digital Audio (AES) Specifications

Specification

Detail

Signal inputs (NTSC, PAL)

Input level: 1V p-p nominal.

Input range: ± 2 V.

Input return loss: < –45 dB, DC to 6 MHz.

Input CMRR: > 60 dB at 120 Hz.

Signal outputs (NTSC, PAL)

Output level: 1V p-p nominal.

Output offset: DC offset 0 V ± 30 mV, relative to back porch.

Output return loss: < –45 dB, DC to 6 MHz.

Output-to-output isolation: > 90 dB at subcarrier frequency.

Signal specifications

Insertion loss: 0 dB ± 0.1 dB.

Frequency response: 0 dBr ± 0.05 dBr, DC to 6 MHz.

Crosstalk: < –65 dB, at subcarrier frequency.

Noise spectrum: < –60 dB (test signal: luminance ramp.

Differential gain: < 0.1% at subcarrier frequency.

Differential phase: < 0.1° at subcarrier frequency.

Delay scatter: < ±0.65° at subcarrier, any input to any output.

Tilt: < 0.1%.

DC coupled system.

Video reference

Input level range: 500 mV p-p to 2 V p-p.

Input return loss: > –40 dB, DC to 6 MHz.

Specification

Detail

Signal inputs

Signal type: AES3id (2 “mono” channels per input).

Sample rate: 32 kHz

192 kHz.

Input level: 1V p-p nominal into 75

W.

Input range: 200 mV p-p to 3 V p-p into 75

W.

Input return loss: < –25 dB, from 100 kHz to 6 MHz.

Input connectors: BNC, 75

W.

Signal outputs

Signal type: AES3id (2 “mono” channels per input).

Sample rate: async, 32 kHz

192 kHz; sync, 48 kHz.

Output level: 1V p-p ± 10% into 75

W.

Output offset: 0.0 VDC ± 50 mVDC, AC coupled.

Output rise/fall time: 4 ns

8 ns.

Output jitter: < 1ns, in synchronous mode.

Output return loss: < –25 dB, from 100 kHz to 6 MHz.

Output-to-output isolation: > 40 dB, from 100 kHz to 6 MHz.

Output connectors: BNC, 75

W.

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