Legacy sound cards

Intelligent sound cards for STD, STE, G-64 and VME buses

Common features
*  Tape recorder quality of reproduction, 10kHz audio bandwidth.
*  Memory sockets for up to several minutes of playback.
*  On-board firmware (VPM) with speech processing and communications software
*  Simple to control and operate by the host CPU
*  Watchdog timer, serial and I2C port

MA520 - STD bus sound card
Introduced in 1984, displayed at Wescon 85 in San Francisco. Still a current product used by several OEMs. Made under license by Enlode, Inc. Unlike other bus cards listed below which feature 10kHz bandwidth, the M520 features 4kHz BW.

MA530 - STE bus sound card

Single height Eurocard size, slave-type STEbus interface with 8 or 16-bit I/O addressing.

MA540 - G-64 bus sound card

Single height Eurocard size. Can be used in both G-64 and G-96 systems. G-64 bus interface: synchronous, G-64/96, full A2-A9 decoding in the I/O address space.

MA550 - VMEbus sound card

Introduced in 1992, displayed at CeBIT 93, Hannover.
Single height Eurocard size. Can be used in both single and double height VMEbus systems. VMEbus interface: A16:D16:D08 (O) slave, decoded in 2K boundaries in the short I/O address space.

MA597 - stand alone sound card

Introduced in 1997.  100 x 160 mm Eurocard format.  Available in 4 versions which differ only in the type of memory used for sound storage:  MA597C (CompactFlash), MA596E (4 x 8Mbit EPROMs), MA597F (8 x 4Mbit flash ICs) and  MA597P (PCMCIA flash memory card).

Recording and playback to/from flash memory in 8/16-bit linear PCM and A/u-Law PCM.  Playback include standard multimedia frequencies of 11, 22 and 44 kHz.   Includes 16 trigger inputs and expansion header for custom  I/O interfaces using  daughterboards.  Several daughterboards are available mainly for animatronics/show control applications.