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YMF781

Features: CPU is incorporated and enabling controls for synthesizer and other functions by the simple commands.Stereo hybrid synthesizer that can generate up to 64 voices simultaneously.Time change low pass filter function by AL (Analog Lite) synthesizer is built in.ADPCM and PCM stream playback i...

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SeekIC No. : 004549993 Detail

YMF781: Features: CPU is incorporated and enabling controls for synthesizer and other functions by the simple commands.Stereo hybrid synthesizer that can generate up to 64 voices simultaneously.Time change ...

YMF781 Data Sheet

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Part Number:
YMF781
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/12/22

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Product Details

Description



Features:

CPU is incorporated and enabling controls for synthesizer and other functions by the simple commands.
Stereo hybrid synthesizer that can generate up to 64 voices simultaneously.
Time change low pass filter function by AL (Analog Lite) synthesizer is built in.
ADPCM and PCM stream playback is possible.
The default tone for FM and Wave Table synthesizer is built in ROM, and registration of a tone to SRAM
is possible.
Speaker amplifier and equalizer circuit is built in.
Stereo / monaural analog output terminal is equipped.
Two control circuits for LED lighting are built in.
The synchronization with contents and compulsive control are also possible.
The inspection function is built in as an external memory interface function.
APL-1 control interface
Three interfaces are provided: Clock Sync Serial, Asynchronous Serial (UART) and Command Port (Mode, which
identify commands by the changes of bus.)
Power down function is built in.
Input and output port
Some terminals can be used as an Input/Output port, which can be controlled from the host CPU.
Malfunction prevention function owing to the electrostatic noise and electromagnetic noise is built in.
Core power supply 3.3V (3.0V to 3.6V)
I/O power supply 3.3V and 5.0V are changed. 3.3V (3.0V to 3.6V) 5.0V(4.75V to 5.25V)
Speaker amplifier power supply 3.3V (3.0V to 3.6V)
100pin plastic SQFP, pin lead plating with Pd-free (YMF781-SZ)


Pinout

Connection Diagram


Specifications

Item Symbol Min. Max. Unit
SPVDD terminal - Power supply Voltage
(Speaker Amplifier section)		 SPVDD -0.3 6.0 V
VDD terminal - Power supply Voltage VDD -0.3 4.2 V
VDDC terminal - Power supply Voltage VDDC -0.3 7.0 V
SPOUT1, SPOUT2 terminal - Supplied voltage VINSP -0.3 SPVDD+0.3 V
Analog Input Voltage VINA -0.3 VDD+0.3 V
Digital Input Voltage (1) (*1) VIND1 -0.3 VDDC+0.3 V
Digital Input Voltage (2) (*2) VIND2 -0.3 VDD+0.3 V
age Temperature TSTG -50 125
Conditions: VSS = SPVSS = 0V
(*1) Relevant terminals: RXD, CTSN, PD, HSEL, SMODE, SWRN, SCLKN, SDI, and SEL (When Port is used: P01, P11, and P20-P26)
(*2) Relevant terminals: Other input terminals


Description

YMF781 (APL-1: hereinafter described as APL-1) is an LSI, integrating synthesizer, ADPCM decoder and a CPU for control in one chip.

YMF781 Various sounds used in common automobiles, motor cycles, and electric appliances, such as alarm sound, operation sound, and melody sound, and pseudo engine sound for an electric car can be generated with a little CPU load.

A control CPU YMF781 incorporated enables APL-1 control by a simple command (API) from the external host CPU.




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