ML22P802 Datasheet | LAPIS

DESCRIPTION The ML22808/ML22804/ML22802-xxx are speech synthesis LSI devices that have P2ROM for storing voice data. The voice output ponent has an ADPCM2 decoder to enable high speech quality, a D/A converter, and a low-pass filter. It is easy to configure a speech synthesizer by connecting a power amplifier and a CPU externally. The ML22808/ML22804/ML22802-xxx allow selection of a playback method from among the 8-bit PCM, non-linear 8-bit PCM, 16-bit PCM, and 4-bit ADPCM2 algorithms and enable volume control. The ML22808/ML22804/ML22802-xxx, supported by the ROM codes, are the products in which written speech data is included. The ML22P808/ML22P804/ML22P802 are OTP products in which speech data can be easily written by the user using a dedicated writer. These devices are suitable for applications in developing products, manufacturing of a wide variety of products in small quantities, and requiring quick turn around. - Capacity of the internal memory device and the maximum vocal reproduction time (when 4-bit ADPCM2 algorithm used) Product name ROM capacity Maximum vocal reproduction time (sec) FSAM = 4.0 k Hz FSAM = 8.0 k Hz FSAM = 16 k Hz ML22808-XXX/ML22P808 8 Mbits ML22804-XXX/ML22P804 4 Mbits ML22802-XXX/ML22P802 2 Mbits - Speech synthesis method: An algorithm can be specified for each phrase from among the following: 4-bit ADPCM2 8-bit Nonlinear PCM 8-bit PCM/16-bit PCM - Sampling frequency: A fsam value can be specified fro each phrase. 4.0/8.0/16.0 k Hz, 5.3/10.7 k Hz, 6.4/12.8 k Hz - Built-in low-pass filter and 12-bit D/A converter - CPU mand interface: 3-wired serial / clock synchronous - Maximum number of phrases: 256 phrases, from 00h to FFh (per bank) - Memory bank switching: Enabled between bank 1 and bank 4 using the SEL0 and SEL1 pins - Memory bank selecting: Selectable between bank 1 and bank 4 by setting the SEL0 and SEL1 pins (Other than ML22802/ML22P802) Selectable between bank1...