¡ Semiconductor MSM5218 ¡ Semiconductor MSM5218 ADPCM Voice Analysis/Synthesis IC 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 4B/3B ANA/SYN BIN/TOC 12-bit S•R D3 D2 D1 D0 ADPCM Analyzer 12 f SI SICK ADSI SCON XT XT S1 S2 VCK 10 OSC 10-bit DAC ADPCM Synthesizer Timing Circuit DAOUT MSB/SO 12 RESET 12-bit S•R SOCK T1 T2 VSS DAS 3 MSM5218 ¡ Semiconductor PIN CONFIGURATION (TOP VIEW) VCK 1 3 24 V DD D0 2 23 XT D1 3 22 XT D2 4 21 RESET D3 5 20 BIN/TOC ANA/SYN 6 19 MSB/SO 4B/3B 7 18 DAOUT S1 8 17 T2 S2 9 16 T1 SICK 10 15 DAS ADSI 11 14 SOCK VSS 12 13 SCON 24-Pin Plastic DIP Note: The product name actually printed on the product is "M5218". ¡ Semiconductor MSM5218 ABSOLUTE MAXIMUM RATINGS Parameter Symbol Condition Rating Unit Power Supply Voltage VDD Ta = 25°C –3.0 to +7.0 V Input Voltage VIN Ta = 25°C –3.0 to VDD V PD Ta = 25°C 200 max mW TSTG — –55 ~ +150 °C Power Dissipation Storage Temperature 3 RECOMMENDED OPERATING CONDITIONS Parameter Symbol Condition Range Unit VDD — +3 to +6 V Power Supply Voltage Operating Temperature TOP — –30 to +70 °C Oscillator Frequency fOSC Specified Oscillator 386 to 768 kHz ELECTRICAL CHARACTERISTICS DC Characteristics (VDD = 5V±5%, Ta = –30°C to +70°C, Ta =25°C typically) Parameter Symbol Condition Min. Typ. Max. Unit VIH All inputs except 4.2 — — V — — 0.8 V — — 1 mA Input High Voltage XT, T1, T2 Input Low Voltage VIL Input High Current (1) IIH All inputs except XT, T1, T2 VIN = VDD Input Low Current IIL VIN = 0V — — –1 mA Output High Current IOH SCON, VCK, SOCK, –50 — — mA 50 — — mA 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 IDD fVCK = 8kHz — 3 6 mA DA. OUT Output Impedance VOR — — 100 — kW D/A Accuracy VE Full Scale — ±4 — LSB VDD = +5V (Internal 10-bit D/A) SICK Clock Frequency f(SICK) — — — 500 kHz Input High Current (2) IIH2 VIN = VDD (Note 1) 20 — 400 mA Note 1: Applicable for Reset. MSM5218 ¡ Semiconductor APPLICATION CIRCUITS Example where a 12-bit AD Converter is Connected – + LPF DAOUT 3 or LPF S&H 12-bit ADC ex HA2435 by HARRIS Co. ex ADC-80AG by MN Co. SICK ADSI MSM5218 SCON RESET XT VCK D3 D2 D1 D0 RAM XT 384kHz [ "Ceralock" made by Murata MFG. Co., Ltd.] Controller RAM SEL B 100kW RAM SEL A RESET 20pF 100kW 100kW 10kW INITIAL RESET Q1 D Q fR Q Q2 D Q fR Q D Q fR Q 450kHz 50pF + – D Q fR Q SIN P18 Q8 –7 –6 –5 –4 –3 –2 –1 GND P/S f Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 VDD MSM4040 GND R f D Q Q fR Q 4 Q3 D Q fR Q MSM5204A 100pF 1MW 100kW 100kW + 1kW – 120kW 120kW 1000pF 1MW VR VDD DB7 VIN 6 5 4 DGND AGND 3 CS 2 1 CLK-IN 0 INTR RD WR MSM4014 100kW 10mF 1MW 100kW R f DAOUT D3 D2 MSM5218RS D1 D0 4B/3B ANA/SYN VDD GND D Q fR Q Q5 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 VDD MSM4040 GND R f Q3 Q4 MSM4024 200 pF 200 pF 100kW SCON DAS RESET VCK XT XT T1 T2 VSS 200 pF 200pF 384kHz SICK BIN/TOC VDD S1 S2 ADSI 100kW 100kW A1 A2 A3 A4 A5 A6 A7 A8 SD A/S VSS AE A1 A2 A3 A4 A5 A6 A7 A8 SD A/S VSS AE MSM4034 START ANALOG INPUT + – 2000pF 100kW A/B f B1 B2 B3 B4 B5 B6 B7 B8 A/B f B1 B2 B3 B4 B5 B6 B7 B8 – + 1000pF 120kW 120kW 10m 10mF 22kW 47kW A0 OE WE CS D7 10kW 10kW – + 2000pF 220W D0 MSM51257A 0.5W 1000mF 820W 0.5W VSS A14 VDD ¡ Semiconductor MSM5218 Voice Analysis/Synthesis Circuit Example (When MSM5204 is Used) 3 MSM4034 100kW 100kW RAM SEL (B) 100kW RAM SEL (A) RESET 100kW 20pF 100kW OUT 7 Q1 D Q fR Q 8 6 4 2 100kW 50pF D Q fR Q –15V IN– IN+ ADJ V– 1 23 4 5 6 100kW HA 2435 0.01mF MN Co. 1mF +15V D Q4 fR Q D Q3 fR Q 100kW –15V D Q fR Q Q1 Q2 Q3 f MSM4040 GND R 100kW 50pF 200 pF VDD D Q fR Q Q5 200pF 200pF D3 D2 D1 D2 DAS XT T1 T2 384 kHz SCON SICK RESET VSS VCK XT MSM5218RS VDD S1 S2 4B/3B ANA/SYN ADSI DAOUT S2 – + A1VDD P/SB1 A2 B2 A3 B3 A4 B4 A5 B5 A6 B6 A7 B7 A8 B8 SD A/S A/B VSS AE f A1VDD P/SB1 A2 B2 A3 B3 A4 B4 A5 B5 A6 B6 A7 B7 A8 B8 SD A/S A/B VSS AE f LPF A0 OE WE CS D7 3 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 f VDD MSM4040 GND R IN 18 S•D•O 0.01mF –15V 12MW 25 16 Gain 1mF A0 A1 A2 A3 A4 A10A6 A7 A8 A9 A10 Q2 D Q fR Q D Q fR CI CI COMP OUT IN IN 23 19 20 11 14 +15V 4MW 21 7 9 10 17 12 15 SC A D D A 5V 5V COM COM 13 10V ADC–80 AG Range HARRIS Co. 100kW S1 MSM4034 INITIAL RESET START 100pF +15V 14 13 12 11 10 9 8 CONT GND HOLD V+ LPF +15V 100kW MSM51257A D0 GND A14 VDD MSM5218 ¡ Semiconductor Voice Analysis/Synthesis Circuit Example (When ADC-80AG by MN Co. is Used) MSM4034