TT6298 Datasheet, PDF (1/19 Pages) Tontek Design Technology – 4-CHANNEL ADPCM VOICE SYNTEHSIS LSI

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
ƒ Advance ADPCM algorithm
ƒ Number of bits/sample: 4
ƒ 24 address lines (TT6297), 23 address lines (TT6298)for external ROM
ƒ 8-bit control bus for mode setting
ƒ External memory capacity 128Mbit for TT6297/64Mbit for TT6298
ƒ Interface with common CPU and MPU
ƒ 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
ƒ Number of words: 511 maximum
ƒ Vocalization time:TT6297 :64 minutes maximum (at 8 kHz, sample rate)
TT6298 :32 minutes maximum (at 8 kHz, sample rate)
ƒ Sound output channel
(DAO with 4 channels)
ƒ Built-in DA converter: 12-bit
ƒ DAO output format: A-class
ƒ Voice level attenuation: OdB~-24dB on each channel (9steps)
with -3dB/step
ƒ Advance low power CMOS process
ƒ 5 V or 3.3 V single power supply
ƒ 48-pin plastic SSOP


07’/06/20
Page 1 of 19
Ver :1.0