Apple Power Mac G4 (Gigabit Ethernet) - Manual (Page 80)

80 Appendix A
Audio Input and Output Specifications
m 16-bit stereo sound with audio sampling rates of 44.1 kilohertz (kHz)
Sound in using the sound input port
m Input impedance: Greater than 4 kilohms for gains greater than 23 decibels (dB); greater
than 25 kilohms for gains less than 23 dB
m Maximum input voltage without distortion: 3 volts ( V ) peak-to-peak
m Line-level microphone voltage range: 28 millivolts (mV ) to 2.5 V peak-to-peak
Sound out using the sound output port
m Full Scale Output level: 3.0 V peak-to-peak with a 5 kilohm load
Noise, distortion, and bandwidth
m Input sound signal-to-noise ratio (SNR) less than 82 dB unweighted (typical) for recording
to system disk or system main memory
m Output sound signal-to-noise ratio (SNR) less than 80 dB unweighted (typical)
m Distortion: Total harmonic distortion: 0.08 percent
m Bandwidth: 20 hertz (Hz) to 20 kilohertz (kHz)
Graphics Controller
m Graphics controller: AGP card with Apple Display Connector and VGA connector
Video Display Modes
Your monitor may not support all the resolutions listed here. For technical specifications for
your specific display, go to the Apple Web site and check the specifications for your product
listed there: www.apple.com/store
VGA port
m 640 x 480 at 60, 67, 72, 75, 85, 90, 100, 120 Hz
m 800 x 600 at 56, 60, 72, 75, 85, 90, 100, 120 Hz
m 832 x 624 at 75 Hz
m 1024 x 768 at 60, 70, 75, 85, 90, 100, 120 Hz
m 1152 x 870 at 75 Hz
m 1280 x 960 at 75 Hz
m 1280 x 1024 at 60, 75, 80 Hz
m 1600 x 1200 at 60, 65, 70, 75, 85 Hz
m 1920 x 1080 at 60, 72, 76 Hz