Filter
Top Products
To turn off TV Mirroring, click the TV Mirroring icon in the Control Strip, and choose Turn TV
Mirroring Off from the menu that appears.
Power Macintosh AV Card Specifications
Video Input
m Type: composite or S-video
m Standards supported: NTSC, PAL, and SECAM
m Resolution supported: 320 x 240, which scales to any size up to the size of the monitor
m Polarity: sync negative
m Voltage level: 0.7 V
pp
minimum, 1.0 V
pp
typical, 1.4 V
pp
maximum
m Impedance: 75 ohms (Ω) internally terminated
Video Output
m Type: composite and S-video
m Standards supported: NTSC and PAL
m Resolutions supported: 512 x 384, 640 x 480, 800 x 600, and 832 x 624
m Polarity: sync negative (no sync on S-video chroma signal)
m Voltage level: 1.0 V
pp
±5% into a 75 Ω resistive load (S-video chroma 0.7 V
pp
)
m Impedance: 75 Ω source
Sound input using the RCA-type audio input ports
m Input impedance (preamplifier off): more than 80 kΩ
m Maximum input voltage (preamplifier off): 1 V
rms
= 2.8 Volts peak-to-peak (V
pp
), nominal
m Input impedance (preamplifier on): more than 5 kΩ
m Maximum input voltage (preamplifier on): 62 millivolts (mV
rms
) = 175 mV
pp
, nominal
Sound output using the optional RCA-type audio output ports
m Output impedance: 400 Ω
m Maximum output voltage: 1 V
rms
= 2.8 V
pp
, nominal
Noise, distortion, and bandwidth
m Audio input signal-to-noise ratio (SNR): 85 decibels (dB) unweighted (add +8 dB to
estimate A weighting)
m Total harmonic distortion: 0.05%
m Bandwidth: 20 Hz–20 kHz at 44.1-kHz sample rate (Other sample rates scale the upper
cutoff frequency.)
11
033-1009 AV Card Update 4/7/98 7:18 PM Page 11