Full-Duplex SoundBlaster Pro Compatible Stereo Audio PC/104 Module
• SoundBlaster Pro and Windows Sound System
• Full-duplex capability for simultaneous record/playback
• Plug and Play configuration
• 5W per channel max output power
• 16-bit stereo audio
• 4KHz to 44.1 KHz sample rates
The Crystal-MM-HP audio module offers full duplex
performance, plug and play capability, and multiple
output power options. It is fully compatible with the
SoundBlaster Pro™ and Windows Sound System™ standards.
Mono microphone
input 100KΩ max
Stereo CD input
Full-duplex capability enables the board to perform
simultaneous recording and playback on separate channels. Sample rates of up to 44.1KHz are supported for both
record and playback. An extensive selection of audio
inputs and outputs on multiple I/O connectors make
Crystal-MM-HP easily adaptable to any application’s
configuration. Both pin headers and stereo mini-jacks are
provided to enable easy connections to custom wiring as
well as industry-standard connectors.
Stereo line output
Stereo line input
PC speaker input
Stereo speaker
Power supply
PC/104 Bus
Operating temp.
Crystal-MM-HP includes a 6-channel mixer with stereo
inputs for line, CD, auxiliary, and MIDI, and mono input for
microphone. Outputs include speaker, line, and MIDI. An
optional mono I/O channel can be provided with a semicustom configuration.
10mV to 125mΩ p-p
30KΩ min,
0V to 4V p-p 30KΩ min,
100KΩ max
0V to 4V p-p 30KΩ min,
100KΩ max
0V to 3.5V p-p 30KΩ
TTL input from CPU
0.5W per channel into 8Ω
5VDC ±5%
3.550" x 3.775"
16-bit configuration
-20 to +70°C operating
Plug and play configuration provides 4 DMA and 6 interrupt selections for increased flexibility and ease of
installation. Additional features include a PCcompatible dual game port and connections for hardware volume and mute controls, so that volume can be
controlled both in software and through front-panel
controls. Software drivers for Windows 3.1, Windows 95,
and Windows NT are included.
I/O Connections
Crystal-MM-HP includes multiple I/O connectors to
handle the wide range of audio signals. Many signals are
present on more than one header for increased flexibility in I/O connections. The two stereo mini-jacks are
configurable with jumpers for input and output source.
The speaker outputs are available on a mini-jack, a dedicated pin header with external volume control input,
and a combination I/O main header. Only one speaker
connection should be used at a time.
Part No.
5V in, 0.5Wx2 output
Diamond Systems Corporation
1255 Terra Bella Avenue
Mountain View, CA 94043
Tel: 650-810-2500
Fax: 650-810-2525
[email protected]
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