IBM ThinkPad 600 - Page 65

Sound Blaster Support Function
The Sound Blaster support function provides three system settings:
I/O address, IRQ level, and DMA channel.
Audio Port Specifications
Audio Output:
– -inch mini-jack for headphone
– Headphone speaker output: 25 mW (32 ) maximum
– Maximum output level: 2.4 V pp
– Output impedance: 75
Audio Input:
– -inch mini-jack for microphone or line input
– Microphone gain: 34.3-dB maximum
– Maximum input level:
Microphone: 570 mV rms
Line In: 2 rms
– Input impedance:
Microphone: 8 k
Line In: 8 k
I/O Address IRQ Level DMA Channel
0220–022F (default)
0240–024F
0338–038B (FM synthesizer)
IRQ 5 (default)
IRQ 7
IRQ 10
IRQ 11
DMA 0
DMA 1 (default)
Subsystems 3-7