User Guide

Specifications I/O Interfaces - 10
Audio One 16-bit stereo output port; one 16-bit stereo input port; mini
phone-jack connectors
Sample rates up to 48 kHz (44.1 kHz standard rate)
Uses the digital signal processor (DSP) chip
Supports stereo audio from internal CD drive and Apple PlainTalk
microphone
Audio input port characteristics: 26K ohms impedance, 2 V rms
maximum, 22.5 dB gain
Audio output port characteristics: 37 ohms impedance, 0.9 V rms
maximum, attenuated –22.5 dB
Apple Desktop Bus
One Apple Desktop Bus (ADB) port for keyboard, mouse, and low-
speed input devices; mini DIN-4 connector