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TT6297 Datasheet, PDF (1/19 Pages) Tontek Design Technology – 4-CHANNEL ADPCM VOICE SYNTEHSIS LSI | |||
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TT6297/TT6298
4-CHANNEL ADPCM VOICE SYNTEHSIS LSI
GENERAL DESCRIPTION
The TT6297/TT6298 is a 4-channel mixing ADPCM voice synthesis LSI which offers one
sound outputs with 4 channels . The TT6297/TT6298 can access an external voice data ROM for
sound effects or speech voice. The maximum external ROM size is 16M/8M *8 bit and can
direct access. The TT6297/TT6298 has an 4-channel synthesis stage which allows the
simultaneous playback of four different channels. It is used to have a voice with BGM (Back
Ground Music) effect, instrumental sound, echo effect etc.
FEATURES
 Advance ADPCM algorithm
 Number of bits/sample: 4
 24 address lines (TT6297), 23 address lines (TT6298)for external ROM
 8-bit control bus for mode setting
 External memory capacity 128Mbit for TT6297/64Mbit for TT6298
 Interface with common CPU and MPU
 Clock frequency with Sampling frequency: (clock 1 MHz to 4 MHz)
⢠At 1.088 MHz clock
DAO : 8 kHz
⢠At 2.176 MHz clock
DAO : 16 kHz
⢠At 4.352 MHz clock
DAO : 32 kHz
 Number of words: 511 maximum
 Vocalization time:TT6297 :64 minutes maximum (at 8 kHz, sample rate)
TT6298 :32 minutes maximum (at 8 kHz, sample rate)
 Sound output channel
(DAO with 4 channels)
 Built-in DA converter: 12-bit
 DAO output format: A-class
 Voice level attenuation: OdB~-24dB on each channel (9steps)
with -3dB/step
 Advance low power CMOS process
 5 V or 3.3 V single power supply
 48-pin plastic SSOP
07â/06/20
Page 1 of 19
Ver :1.0
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