YMZ705 Datasheet | Yamaha

OVERVIEW YMZ705(SSGS) is an automatic play LSI with synthesizer equivalent to two YM2149(SSG) and ADPCM playback function. By two internal sequencers, YMZ705 plays two different music simultaneous ly with up to six square wave plus two noise plus eight ADPCM voices at a time. All the parameters for the synthesizer can be controlled directly by CPU even when the sequencers are in operation. - FEATURES e YM Z705 includes two systems of SSG synthesizer, each of which generates three square wave plus one noise so that it can generate up to six square wave plus two noise plus eight ADPCM voices simultaneously. The voice data that is made by digital mixing is outputted as analog signals from the built-in 12-bit floating D/A converter. ewith its sequencer function. YMZ705 is able to playback two songs at the same time from up to (14 songs stored in the external memory. ewith its 4-bit ADPCM playback function. YMZ705 is able to playback maximum eight voices at the same time from voice data of up to 64 voices stored in the externa l memory. A sampling frequency can be selected from 32k Hz, I6k Hz, 8k Hz and 4k Hz for each channel. e An external memory up to 8 Mbytes can be connected to YMZ705 for storing music data and ADPCM data . e For both SSG and ADPCM , the data can be controlled directly by CPU. e For SSG. pan-pot can be set for six voices independently. For ADPCM, it can be set for eight voice sindependently. e+sv sing le power supply, silicon gate CMOS process . - 64 pin plastic QFP(YMZ705-F). ------YAMAHA CORPORATION-----v Mnos CATALOG CATALOG No. : -LSl4MZ705A2 1996. 10 - PIN OUT DIAGRAM YMZ705-F /RESET AVDD L R AVSS VDD vss /TEST AO ENA /WR /CS DO 01 02 03 04 05 06 N ..-- >- >- (!) U) <( __J (L --- <( __J -(-L- U) U) > :::.::: x0 __J 0 x 0 0 > N U) N U) <( >2 ..-- N <( 0 N CJ) ..-- <(...