HP 744 - Manual (Page 90)

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