M5218 – ADPCM Voice Analysis/Synthesis IC

Part Number : M5218

Function : ADPCM Voice Analysis/Synthesis IC

Manufactures : OKI electronic componets

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Description :

¡ Semiconductor ¡ Semiconductor MSM5218 ADPCM Voice Analysis/Synthesis IC MSM5218 GENERAL DESCRIPTION The MSM5218 is a complete voice analysis/synthesis IC featuring the Adaptive Differential Pulse Code Modulation (ADPCM) method of data compression. The MSM5218 contains an analysis stage where serial PCM data is compressed to 3- or 4-bit parallel ADPCM data. In addition, a synthesis stage synthesizes PCM data from ADPCM data. FEATURES • ADPCM data compatible with OKI’s synthesis IC MSM5205 • Analysis/synthesis switching pin provided • Lower power consumption achieved by one-chip CMOS IC • Built-in 10-bit D/A converter for analog output • Variable sampling frequency (4 kHz, 6 kHz, 8 kHz) • Master clock frequency: 384 kHz • Package: 24-pin plastic DIP (DIP24-P-600) (Product name: MSM5218RS) BLOCK DIAGRAM VDD BIN/TOC 12-bit S•R f SI SICK ADSI SCON XT XT S1 S2 VCK RESET T1 T2 VSS DAS 10 ADPCM Synthesizer 12 12-bit S•R SOCK 10-bit DAC DAOUT MSB/SO 12 ADPCM Analyzer 4B/3B ANA/SYN D3 D2 D1 D0 OSC Timing Circuit MSM5218 ¡ Semiconductor PIN CONFIGURATION (TOP VIEW) VCK 1 D0 2 D1 3 D2 4 D3 5 ANA/SYN 6 4B/3B 7 S1 8 S2 9 SICK 10 ADSI 11 VSS 12 24 V DD 23 XT 22 XT 21 RESET 20 BIN/TOC 19 MSB/SO 18 DAOUT 17 T2 16 T1 15 DAS 14 SOCK 13 SCON 24-Pin Plastic DIP Note: The product name actually printed on the product is “M5218”. ¡ Semiconductor MSM5218 ABSOLUTE MAXIMUM RATINGS Parameter Power Supply Voltage Input Voltage Power Dissipation Storage Temperature Symbol VDD VIN PD TSTG Condition Ta = 25°C Ta = 25°C Ta = 25°C — Rating –3.0 to +7.0 –3.0 to VDD 200 max –55 ~ +150 Unit V V mW °C RECOMMENDED OPERATING CONDITIONS Parameter Power Supply Voltage Operating Temperature Oscillator Frequency Symbol VDD TOP fOSC Condition — — Specified Oscillator Range +3 to +6 –30 to +70 386 to 768 Unit V °C kHz ELECTRICAL CHARACTERISTICS DC Characteristics (VDD = 5V±5%, Ta = –30°C to +70°C, Ta =25°C typically) Parameter Input High Voltage Input Low Voltage Input High Current (1) Input Low Current Output High Current Symbol VIH VIL IIH IIL IOH Condition All inputs except XT, T1, T2 All inputs except XT, T1, T2 VIN = VDD VIN = 0V SCON, VCK, SOCK, MSB/SO, D0 to D3 V0 = 4.2V Output Low Current IOL SCON, VCK, SOCK, MSB/SO, D0 to D3 V0 = 0.4V Operating Current DA. OUT Output Impedance D/A Accuracy (Internal 10-bit D/A) SICK Clock Frequency Input High Current (2) f(SICK) IIH2 IDD VOR VE fVCK = 8kHz — Full Scale VDD = +5V — VIN = VDD (Note 1) — 20 — — 500 400 kHz mA — — — 3 100 ±4 6 — — mA kW LSB 50 — — mA — — –50 — — — 1 –1 — mA mA mA — — 0.8 V Min. 4.2 Typ. — Max. — Unit V Note 1: Applicable for Reset. MSM5218 ¡ Semiconductor APPLICATION CIRCUITS Example where a 12-bit AD Converter is Connected – + LPF DAOUT or LPF S&H 12-bit ADC ex ADC-80AG by MN Co. SICK ADSI MSM5218 SCON RESET XT VCK D3 D2 D1 D0 XT RAM ex HA2435 by HARRIS Co. 384kHz [ “Ceralock” made by Murata M […]

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M5218 Datasheet


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