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| Semiconductor ML2213 Speech Synthesiser with 1.5MBit ROM & Melody Circuit GENERAL DESCRIPTION Version 1.02, October 1998 Preliminary The ML2213 combines a Mask-ROM speech synthesiser with a melody circuit and comes with a simple serial interface to an microcontroller. It has an analog outputs for an amplifier (speech playback) and a built-in driver for a piezo-electric speaker (melody playback). ML2213 is primarily designed for application in portable cellular phones. ML2213 will come in a very small, 6.4 x 5.0mm sized 14-pin SSOP package (0.5mm pitch) housing 1.5MBit mask ROM for speech and melody data. Selectable algorithms include 4-Bit OkiADPCM and linear and non-linear 8-Bit OkiPCM (the latter achieves quality equivalent to 10-Bit linear PCM). In ADPCM mode and 4kHz sampling provided (from 4 to 16kHz selectable), the device outputs 90 seconds speech plus melodies. For both, 247 channels can be defined. ML2213 comes in an ultra-small package, operates over a wide supply range from +2.2 ~ 5.5V and satisfies the industrial temperature range. FEATURES * Internal 1.5MBit ROM * 4-Bit OkiADPCM algorithm * 8-Bit linear OkiPCM, 8-Bit Oki non-linear PCM * Sampling frequencies: 4.0, 5.3, 6.4, 8.0, 10.7, 12.8, 16.0kHz * Playback time : 90 sec @ 4KHz, 60 sec @6.4kHz * 12-bit D to A converter built-in * Single tone output Melody circuit - musical scale: 31, note & rest: 63, tempo: 30 - built-in piezo speaker driver * Low-pass filter built-in * Speech and melody phrases: 247 * Master clock: 4.096, 8.192, or 16.384MHz (by means of mask option) * Power supply voltage: +2.2 ~ 5.5V * Operating temperature -40 to +85C * 14-pin SSOP (SSOP14-P-44-0.50-K), 6.4(W) x 5.0(L)mm * Product name ML2213MB * Typical application is for cellular phones TYPICAL APPLICATION DIAGRAM 100nF 100nF +3.3V NC NAR BUSY PIN ASSIGNMENT 1 2 3 4 5 6 7 14 13 12 11 10 9 8 NC SD SI RESET CS CLK VDD VDD VDD P1.1 P1.2 RESET SI SD CLK NAR CS GND MD Piezo AOUT MSC1157 MD GND AOUT NC Host MCU P1.3 P1.4 P1.5 ML2213 VSS P1.6 Specification are subject to change without notice. Semiconductor PACKAGE DIMENSIONS 14-pin SSOP Unit in millimeters, unless otherwise specified. ML2213 Page 2 |
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