Leitch 880 Series, Инструкция по эксплуатации

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880 Series Audio Distribution Amplifiers Instruction Manual 57
Chapter 14: Specifications
Preliminary—Contents are proprietary and confidential. Do not photocopy or distribute.
ADA-885 Mono/Stereo Audio Distribution Amplifier
Module (600
Ω
Impedance)
Input
Output
Performance
Table 14-26. ADA-885 (600
Ω
Impedance) Input Specifications
Item Specification
Impedance > 30 k
Ω
, balanced
Max. level + 24 dBm
Common mode range ± 20 volts
Common mode rejection > 90 dB @ 60 Hz
> 60 dB @ 20 kHz
Table 14-27. ADA-885 (600
Ω
Impedance) Output Specifications
Item Specification
Channels 2
Outputs per channel 4
Impedance 600
Ω
balanced
Max. level + 18 dBm
Output to output isolation > 70 dB 20 Hz to 20 kHz
Table 14-28. ADA-885 (600
Ω
Impedance) Performance Specifications
Item Specification
Gain range – 6 to + 33 dB ± 6 dB on 18-turn pot, 0, +
9, + 18, + 27 dB on jumper)
S/N ratio > 100 dB @ unity gain
20 Hz – 20 kHz, relative to + 8 dBm
signal, unweighted
Frequency response < ± 0.05 dB
20 Hz – 20 kHz, rel. to 1 kHz, any level
up to + 18 dBm
Total harmonic distortion < 0.05%, 20 Hz – 20 kHz @ + 18 dBm
Intermodulation distortion < 0.02% SMPTE @ +18 dBm
Isolation between modules > 100 dB, 20 Hz – 20 kHz
Interchannel crosstalk > 95 dB, 20 Hz – 20 kHz
Temperature range 41° – 104° F (5°– 40° C)