HP Model 744 HP Model 744 Owner's Guide - Page 90
Table 4-2, Audio Specifications, Table 4-2 lists the audio specifications
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Table 4-2 Connecting Cables Audio Connection Table 4-2 lists the audio specifications, Figure 4-4 shows the audio connector, and Table 4-3 shows the audio connector pinouts. . Audio Specifications Function Range Headphone maximum output level Input sensitivity Programmable input gain Programmable output attenuation Programmable rates Signal to noise ration 2.75 V pp at 50 ohms Line in, 2.0 V pp at 47 K ohms microphone, 22 mV at 1 K ohm 0 to 22.5 dB in 1.5 dB steps 0 to 96 dB in 1.5 dB steps 8, 11.025, 16, 22.05, 32, 44.1, 48 KHz Headphone, 61 dB Line in, 61 dB Microphone, 57 dB 4-10
4-10
Connecting Cables
Audio Connection
Table 4-2 lists the audio specifications, Figure 4-4 shows the audio connec-
tor, and Table 4-3 shows the audio connector pinouts.
.
Table 4-2
Audio Specifications
Function
Range
Headphone maximum
output level
2.75 V pp at 50 ohms
Input sensitivity
Line in, 2.0 V pp at 47 K ohms microphone, 22
mV at 1 K ohm
Programmable input gain
0 to 22.5 dB in 1.5 dB steps
Programmable output
attenuation
0 to 96 dB in 1.5 dB steps
Programmable rates
8, 11.025, 16, 22.05, 32, 44.1, 48 KHz
Signal to noise ration
Headphone, 61 dB
Line in, 61 dB
Microphone, 57 dB