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SoundBlaster Cards (Rev 1.6.1)

Soundblaster Pro

Reconfiguring for headphones or external speakers

  1. Power the system down, take suitable antistatic precautions and remove the system unit cover.
  2. Identify jumpers JP14 and JP15 and the cable, from the illustration above.
  3. Disconnect the cable from pins 4, 5 and 6 of JP14.
  4. Remove the jumper links from pins 3 and 7 of JP14 and replace on across pins 6 and 7 of JP14, and the other across both pins of JP15.


Soundblaster 16 (Vibra) CT2260

Reconfiguring for headphones or external speakers

  1. Power down the system, take suitable antistatic precautions and remove the system unit cover.
  2. Identify jumpers JP16 and JP17 and the cable, from the above illustration.
  3. Disconnect the cable from pins 1, 2 and 3 of JP17.
  4. Remove the jumper links from pins 4 and 5 of JP17 and replace one across pins 3 and 4 of JP17, and the other across both pins of JP16.


Vibra 16 CT2801

Specification

Audio Specification

Frequency Response 20 Hz to 20 KHz (Line out)
Signal to Noise Ratio 80 dB (Line out)
THD + Noise 0.02% (Line out)
0.2% (Speaker out - typ.)
Output Power (Max.) 4 Watts PMPO per channel
(4 W load minimum)
Maximum Output Signal 8.8 Vpp
AGC Amplifier Gain 20 dB to 46 dB
(20 dB fixed gain when AGC is off)
Microphone Impedance 600 W
Microphone Input Range 30 mVpp to mVpp
Line-In Impedance 15 KW
Line-In Input Range 0 to 2 Vpp
CD Audio-In Impedance 15 KW
CD Audio-In Sensitivity 0 to 2 Vpp

Power Consumption

+5 V Current Consumption 250 mA (typ)
+12 V Current Consumption 300 mA (typ)
-12 V Current Consumption 50 mA (typ)

I/O MAPPING - Default settings in bold face

Audio 220H - 22FH or 240H - 24FH
260H - 26FH or 280H - 28FH
MPU-401 UART 300H - 301H or 330H - 331H
Joystick 200H - 207H
Music Synthesis 388H - 38BH
IDE interface 170 - 177 & 376 - 377 Secondary
1E8 - 1EF Tertiary
168 - 16F Quaternary

INTERRUPTS and DMA Channels - Default settings in bold

DMA setting
8-bit 1 and 3
16-bit 5 and 7
IRQ setting 2, 5, 7, 10
IDE setting 10, 11, 12, and 15

TEMPERATURE RANGE

Operation 10 to 50 ºC
Non-operating -40 to 70 ºC

Audio In Pin Assignments

CD_IN CONNECTOR (J3)
PIN SIGNAL I/O
1 Ground IN
2 CD Left Channel IN
3 Ground IN
4 CD Right Channel IN

Internal PC Speaker

PC SPK CONNECTOR (JP12)
PIN SIGNAL I/O
1 +5 V IN
2 SPK IN

Audio Extension Pin Assignments

CONNECTOR (JP15)
PIN DESCRIPTION
1 MICGND - Mic input ground.
2 MICGND - Mic input ground.
3 MICL - Mic input left channel.
CONNECTOR (JP14)
PIN DESCRIPTION
1 SPKGND - Speaker output ground.
2 SPKR - Speaker output right channel. Max. output voltage is 3Vrms at 4W.
3 SPKL - Speaker output left channel. Max. output voltage is 3Vrms at 4W.
4 SPKRL - Speaker output return signal for left channel.
5 SPKRR - Speaker output return signal for right channel.
CONNECTOR (JP13)
PIN DESCRIPTION
1 SPKR - Speaker output right channel. Max. output voltage is 3Vrms at 4W.
2 SPKRR - Speaker output return signal for right channel.

I/O Address Settings

ADDRESS JUMPER - IOS0 JUMPER - IOS1
220H (default) ON ON
240H OFF ON
260H ON OFF
280H OFF OFF

IDE Interface Settings

STATUS JUMPER - IDEEN JUMPER - IDECHRDY
Enabled ON (default) ON
Disabled OFF OFF (default)
IDE PORT I/O Address JUMPER - IDEIO0 JUMPER - IDEIO1
Secondary (default) 170-177 & 376-377 OFF ON
Tertiary 1E8-1EF ON OFF
Quaternary 168-16F OFF OFF
IDE PORT IRQ Lines
Secondary (default) 15 (default)
Tertiary 11 or 12
Quaternary 10 or 11


 

Computing for a Connected World