ka8512 Samsung Semiconductor, Inc., ka8512 Datasheet
ka8512
Available stocks
Related parts for ka8512
ka8512 Summary of contents
Page 1
... Compandor is a composite word of compressor and expander used for maintaining dynamic range and improving of S/N ratio, and generally called as a noise reduction system or automatic gain control system. KA8512 consists of compressor, expander, mic amp, Iimiter, ALC(automatic level control) and mute logic. FEATURES Operating voltage range : ...
Page 2
... MICOM being transmitted to an user, and is connected to the RX mute terminal of MICOM. Expanding is executed if this terminal is high, and expander mute is exe- cuted low ALC KA8512 11 AGIC 5 10 CRC 6 9 CPI CPI+ Description =1V) used for supplying a constant voltage REF ...
Page 3
... KA8512 PIN DESCRIPTION (Continued) Pin No Symbol It is compressor mute terminal of a compandor. Mute block is used to avoid duplication of data transmission from MICOM 6 CMUTE (Between the base and hand set) with the voice signal connected to the TX mute terminal of MICOM. Compressing is executed if the terminal is high, and compressor mute is executed low ...
Page 4
... KA8512 ABSOLUTE MAXIMUM RATINGS Characteristic Maximum Supply Voltage Power Dissipation Operating Temperature Storage Temperature ELECTRICAL CHARACTERISTICS ( 1KHz Unless otherwise Specified) CC Characteristic Symbol DC Electrical Characteristics Operating Voltage V CC Operating Current I CC Compressor Part Reference Voltage V REF Standard Output Voltage V O(COMP) ...
Page 5
... KA8512 TEST CIRCUIT COMPANDOR + _ ...
Page 6
... KA8512 APPLICATION CIRCUIT Vcc REF Bias Circuit Gain Cell 10K Rectifier 15K 68K C4 R6 33uF R2 R4 68K 220K 68K C1 68nF TR1 C3 FROM RX 100nF OUTPUT C15 100nF 68K 300 68nF TO TX MODULATION C13 C11 C10 C12 100nF 22uF 1uF ...