msm7577 Oki Semiconductor, msm7577 Datasheet

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... Voice Signal Level Control LSI GENERAL DESCRIPTION The MSM7577 is an LSI for Audio Signal Level adjustment for telephone set, etc. Conventionally, its circuit has been made within individual unit, such as amplifiers, resistors and switches. However, using this LSI allows for simple mounting and economically small space. ...

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... ATT0 ATT1 ATT2 150 kW ATTE SG TAUD AN2 2 15 AO3 MIC RCV2 4 13 AN3 12 ATTE RCV1 ATT2 RAUD 7 10 ATT1 GND 8 9 16-Pin Plastic SOP MSM7577 RCV1 AN2 – RCV2 + – TAUD GND PD DD ATT0 2/8 ...

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... Gain control should be controlled by a resistor between AN3 and AO3. Input pin of Microphone signal. Gain control and frequency responce control. Gain control should be controlled by a resistor between AN3 and AO3. Power supply (+3 V). MSM7577 Loss level (dB) 0 ±0.3 –2 ±0.3 –4 ±0.3 – ...

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... Analog Output Load Resistance 2 Symbol Min. V –0 –0.3 IND V –0.3 INA T –55 STG Symbol Condition Ta — TAUD LA1 R Except TAUD pin. LA2 MSM7577 Max. Unit + +150 °C Min. Typ. Max. Unit – °C +2.7 +3.00 +5.25 V 600 — — ...

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... ATTE, PD VDD V = GND I – RAUD, MIC — AN2, AN3 RAUD — MIC RCV1, RCV2, AO3 1 (to SG level) L TAUD 1.2 = 600 W (to SG level MSM7577 = 2 5. Typ. Max. Unit 1.2 2.4 mA 10.0 20 0.1 0.2 mA 0.3 ¥ — V VDD — — +10 mA — 1.2 ...

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... MIC-TAUD AO3 and AN3 are connected –1.0 600 W load resistance MIC-RCV1 –9.5 AO3 and AN3 are connected RAUD-RCV1 –0.3 ATT0 to ATT2 MIC = –7.45 dBV kHz — 600 W load resistance MSM7577 = 2 5. Typ. Max. Unit +15 +16 dB — — dB — — ...

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... GND 8 ATT0 AO3 AN3 – MIC + C7 MIC – AN3 + R5 AO3 C9 MSM7577 + > > 0.1 µ µ Gain = R2/R1 R3 > > > 1 µ Gain = R4/R3 R5 > > > 0.1 µF C8 > 1 µF ...

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... Therefore, before you perform reflow mounting, contact Oki’s responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times). MSM7577 (Unit : mm) Package material Epoxy resin ...