TT5665 Datasheet, PDF (1/18 Pages) Tontek Design Technology – 8-CHANNEL ADPCM VOICE SYNTEHSIS LSI

Preliminary
TT5665
8-CHANNEL ADPCM VOICE SYNTEHSIS LSI
GENERAL DESCRIPTION
The TT5665 is a 8-channel mixing ADPCM voice synthesis LSI which offers R & L
sound outputs with 4 channels for each. The TT5665 can access an external voice data ROM for
sound effects or speech voice. The maximum external ROM size is 16M*8 bit and can direct
access. The TT5665 has an 8-channel synthesis stage which allows the simultaneous playback of
eight 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 for external ROM
ƒ 8-bit control bus for mode setting
ƒ External memory capacity 128Mbit
ƒ Interface with common CPU and MPU
ƒ Clock frequency with Sampling frequency: (clock 1 MHz to 4 MHz)
• At 1.088 MHz clock
DAOR : 8 kHz and 6.4 kHz
DAOL : 8 kHz , 4 kHz , and 6.4 kHz , 3.2 kHz
• At 2.176 MHz clock
DAOR : 16 kHz and 12.8 kHz
DAOL : 16 kHz , 8 kHz , 4 kHz and 12.8 kHz , 6.4 kHz
3.2 kHz
• At 4.352 MHz clock
DAOR : 32 kHz and 25.6 kHz
DAOL : 32 kHz , 16 kHz , 8 kHz , 4 kHz and 25.6 kHz , 12.8 kHz
6.4 kHz , 3.2 kHz
ƒ Number of words: 511 maximum
ƒ Vocalization time: 64 minutes maximum (at 8 kHz, sample rate)
ƒ Sound output channel
(DAOR/L with 4 channels for each)
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 64-pin plastic QFP
07’/06/20
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Ver :1.1