KA8503 Samsung, KA8503 Datasheet
KA8503
Related parts for KA8503
KA8503 Summary of contents
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... KA8503 INTRODUCTION The KA8503 is a telephone low voltage speech network which includes mic amp. transmit amp, side-tone amp, receive amp. It handles the voice signal performing the 2/4 wire interface and changing the gain on both sending and receiving amplifiers to compensate for line at- tenuation by sensing the line length through the line current ...
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... RXO1 Receive amplifier output. 17, 18 RXO2, ROX3 Receive amplifier output. Output impedance is 3 (Typ) LOW VOLTAGE SPEECH NETWORK RXO3 2 17 TXO RXO2 3 16 TXI RXO1 RXI DD KA8503 5 14 MUTE MIC2 7 12 ST1 MIC1 8 11 ST2 MIC0 9 10 ST3 ST0 Fig. 2 Description 20% 20% ...
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... KA8503 ABSOLUTE MAXIMUM RATINGS Characteristic Line Voltage (3ms max) Forward Line Current Reverse Line Current Power Dissipation ( Operating Temperature Storage Temperature ELECTRICAL CHARACTERISTICS (Refer to the test circuits 100mA 200 ~ 3.4KHz unless otherwise specified) L Characteristic Symbol Line Voltage Gain (TX) T Range of Regulation ...
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... LOW VOLTAGE SPEECH NETWORK 62K 12K 470uF 62K KA8503 3.6K 104 18K 10 820 9.1K 75 27K 22uF Fig KA8503 *Side tone = 20 Log * G Fig. 4 V(TX KA8503 (RX) Fig. 5 910 Mute 300 20uF 1. SW1 1.5M 47uF 1.5M 470uF 560 Log V MI 470uF 560 Log ...