4 specifications – Grass Valley ADC-1722 User Manual
Page 22

GUIDE TO INSTALLATION AND OPERATION
22/22 | ADC-1722
4 Specifications
Analog Inputs (4)
Signal: .................................................. balanced analog audio
Input impedance: .................................
> 12 kΩ
Max. Level: .......................................... +24 dBu
External Reference Input (1)
Signal: .................................................. AES3-id or Word Clock
Frequency: ........................................... 32, 48 or 96 kHz
(Opt.44.1 kHz only)
Input impedance: .................................
75 Ω
Frame Reference Input (1)
Signal: .................................................. URS from Miranda Technologies,
............................................................. Implies a REF-1701 or a REF-1801 card installed in the frame and
proper position of the JP1 jumper for card Assy#0696-1200-2xx.
Outputs (4)
AES3
Level: ................................................ 4 Vpp
Impedance: .......................................
110 Ω balanced
Jitter: ................................................. 0.008 UI peak (50 Hz to 100 kHz)
AES-3id
Level: ................................................ 1.0 Vpp
Impedance: .......................................
75 Ω unbalanced
Jitter: ................................................. 0.008 UI peak (50 Hz to 100 kHz)
Processing Performance
Quantization: ....................................... 24 bits
Sampling: ............................................. 32, 48 or 96 kHz
SNR: .................................................... >113 dB A weighted
0 dBFS: ................................................ 0 to +24 dBu (1 dB steps)
Distortion: ............................................ < -100 dB (0.001%)
Crosstalk: ............................................. < -100 dB (20 Hz to 20 kHz)
Freq. response: ................................... ± 0.1 dB (20 Hz to 20 kHz)
Processing delay: ................................ 810 µsec @ 48 kHz
Tone generator: ................................... -18 dBFS 1 kHz sine wave interrupted on left channel
(250 ms / 3 s) per EBU R49
Miscellaneous
Signal presence threshold: ................. from –72 to –54 dBFS
(6 dB steps)
No signal delay: ................................... from 0 to 255 s (1 s steps)
Power
With ADC-1722-DRP-75...................... 4.9 W (Assy#0696-120-2xx); 3.5 W (Assy#0696-1200-400)
With ADC-1722-DRP-110.................... 5.1 W (Assy#0696-120-2xx); 3.5 W (Assy#0696-1200-400)