YMF754 (DS-1E) is a high performance audio controller for the PCI Bus. DS-1E consists of two separated
functional blocks. One is the PCI Audio block and the other is the Legacy Audio block.
PCI Audio block provides 64-voice XG wavetable synthesizer with reverb and variation by using the software
driver from YAMAHA. It also supports DirectSound hardware accelerator, Downloadable Sound (DLS) and
Legacy Audio block supports FM synthesizer, Sound Blaster Pro, MPU401 UART mode and Joystick function
in order to provide hardware compatibility for numerous PC games on real DOS without any software driver.
DS-1E supports the connection to ACâ€™97 which provides high quality DAC, ADC and analog mixer, and it can
connect two ACâ€™97s. In addition, it supports consumer IEC958, Digital Audio Interface (SPDIF In/Out), to
connect external audio equipment by digital.
In addition to support the same functions of YMF744B (DS-1S), DS-1E adds direct recording function for
SPDIF In, and realizes to use SPDIF In and Zoomed Video Port at the same time. And, DS-1E is featured
with the capability of dramatically reducing power consumption at normal operation.
â€¢ PCI 2.2 Compliant
â€¢ PC98 / PC99 specification Compliant
â€¢ PCI Bus Power Management rev. 1.0 Compliant
(Support D0, D2 and D3 state)
â€¢ Supports clock run
â€¢ PCI Bus Master for PCI Audio
True Full Duplex Playback and Capture with
different Sampling Rate
Maximum 64-voice XG capital Wavetable
Synthesizer including GM compatibility
DirectSound Hardware Acceleration
DirectMusic Hardware Acceleration
Downloadable Sound (DLS) level-1
â€¢ Legacy Audio compatibility
Hardware Sound Blaster Pro compatibility
MPU401 UART mode MIDI interface
â€¢ Supports PC/PCI and Distributed DMA for legacy
DMAC (8237) emulation
â€¢ Supports Serialized IRQ
â€¢ Supports I2S serial input for Zoomed Video Port
â€¢ Supports Consumer IEC958 Port (SPDIF In/Out)
â€¢ Supports direct recording function for SPDIF In
â€¢ Capability for using SPDIF In and Zoomed Video
Port at the same time.
â€¢ Supports ACâ€™97 Interface (AC-Link) Revision 2.1
â€¢ ACâ€™97 Digital Docking
â€¢ Supports 4-Channel Speaker
â€¢ Hardware Volume Control
â€¢ EEPROM Interface
â€¢ Single Crystal operation (24.576MHz)
â€¢ Power supply: 3.3V for I/O (5V tolerant),
2.5V for Internal core logic
â€¢ 128-pin LQFP YMF754-V : 0.5mm pin pitch
YMF754-R : 0.4mm pin pitch
The contents of this catalog are target specifications and are subject to change
without prior notice. When using this device, please recheck the specifications.
June 28, 1999