764 Digital Audio Monitor User Manual 75

Appendix A: Specifications

Table 20: Digital audio inputs

Characteristic Performance require-
ments Supplemental information
Impedance
Balanced inputs (XLR)
Term switched in 110 Ω ±5% 0.1 MHz to 6 MHz
Term switched out Return loss >30dB 0.1 MHz to 6MHz. Relative to
110 Ω load at loop-through
connector.
Unbalanced inputs Return loss > 30dB Relative to 75Ω load at
loop-through connector.
Input level
Balanced inputs 0.2 to 10 Vp–p
Unbalanced inputs 50 mVp–p to 2 Vp–p
Reference input
Balanced input
Connector type XLR, terminated, no loop-
through
Input impedance 110 Ω ± 10% 0.1 to 6 MHz
Input level 0.6 to 10 Vp–p
Unbalanced input
Connector type BNC, terminated, no loop-
through
Input impedance 75 Ω ± 10% 0.1 to 6 MHz
Input level 0.2 Vp–p to 2 Vp–p
Sample rate locking range,
all audio inputs 27 kHz to 52 kHz