Audio Precision APx555, Installation Instructions And Specifications

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Characteristic Specifications Supplemental Information
90 APx AMC I/O for B Series: Specifications
AMC
REAR PANEL I/O
Auxiliary Digital Control
Output 8 bits Typically 0-5V, 9-pin male D-sub
Input 8 bits Internal pull-up, 9-pin female D-sub
Sync Input
Signal Compatibility Square or Sine
Voltage Range 0.8 Vpp to 5.0 Vpp R
IN
>10 k Ω , AC coupled
Frequency Range 4 kHz to 50 MHz, square;
1 MHz to 50 MHz, sine
Lock Range Typically 100 ppm
Sync Output
Signal Square
Amplitude (V
H
) +0.8 V to +3.6 V, 0.1 V steps R
S
≈ 50 Ω ; V
L
≈ 0 to 0.1 V
Frequency Range 8 kHz to 50 MHz Maximum recommended frequency
when interfacing to low voltage logic:
50 MHz for 3.6 V ≥ VH ≥ 1.5 V
40 MHz for 1.5 V > VH ≥ 1.0 V
20 MHz for 1.0 V > VH ≥ 0.8 V
* See complete table in Notes, below.
Reference Input (AES11 / DARS)
Voltage Range 2.0 Vpp to 6.0 Vpp R
IN
selectable: >5 k Ω or ≈ 110 Ω
Sample Rate Range 27 kS/s to 216 kS/s
Lock Range Typically 100 ppm
Reference Output (AES11 / DARS)
Amplitude 5.0 Vpp into 110 Ω , balanced
Sample Rate Range 8 kS/s to 216 kS/s Usable below 27 kS/s with some loss in
waveform fidelity