Inputs; Analogue Inputs; Digital Inputs - Bang & Olufsen BeoLab 90 Technical Sound Manual

10.2.2 Inputs

Analogue Inputs

Analogue-to-Digital Converter
Note that the same ADC model is used for all analogue inputs.
Model
Sampling Rate
Resolution
Frequency Response
Frequency Range
Dynamic Range (Typical)
Dynamic Range (Worst-case)
THD+N
Channel Separation
Passband Ripple
Power Link
Connector
Input Impedance
Audio Channels
Maximum Input Voltage
Features
Sensitivity
XLR Line
Input Impedance (Single-ended)
Input Impedance (Balanced)
Maximum Input Voltage
Features
Pin configuration
Pin 1 Audio ground
Pin 2 Positive signal input ("hot")
Pin 3 Negative signal input ("cold")
Note that the XLR connector casing (or "shell") is connected to the chassis ground of the BeoLab 90 for shielding.
RCA Line
Input Impedance
Maximum Input Voltage

Digital Inputs

Sampling Rate Converter
Note that the SRC is applied to all digital inputs.
Model Texas Instruments SRC4392
Output sampling rate 192 kHz (fixed)
Output word length 24 bits
THD+N 0.000014% (f=997 Hz, 0 dBFS, 22 Hz – 40 kHz, unweighted)
Dynamic Range 138 dB (f=997 Hz, -60 dBFS, 22 Hz – 40 kHz, unweighted)
Passband Ripple
Texas Instruments PCM4220
192 kHz (fixed)
24 bits
10 Hz – 80 kHz (+ 0 dB, -0.2 dB)
2 Hz – 85 kHz (-3 dB)
122 dB (A) (997 Hz, -60 dB FS)
117 dB (A) (997 Hz, -60 dB FS)
0.001% (997 Hz, -1 dB FS, 22 Hz – 20 kHz)
100 dB (20 Hz to 20 kHz)
0.001 dB
RJ45
100 k
2
6.5 V RMS
5 V control voltage for On/Standby
Power Link Data support
125 mV RMS produces 88 dB SPL (1 m, on-axis, free-field)
50 k (Fixed)
100 k (Fixed)
2.0, 4.0, 6.5 V RMS (Selectable)
Di erential and impedance balanced
50 , 50 k (Selectable)
2.0, 4.0, 6.5 V RMS (Selectable)
0.008 dB
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