KKA3010

www.DataSheet4U.com TECHNICAL DATA KKA3010 INFRARED REMOTE CONTROL TRANSMITTER RC-5 The KKA3010 is intended as a general purpose (RC-5) infrared remote control system for use where a low voltage supply and a large debounce time are expected. The device can generate 2048 different commands and utilizes a keyboard with a single pole switch for each key. The command are arranged so that 32 systems can be addressed, each system containing 64 different commands. The keyboard interconnection is illustrated by Fig.1. Low voltage requirement Single pin oscillator Biphase transmission technique Test mode facility ORDERING INFORMATION KKA3010N Plastic KKA3010DW SOIC TA = -25° to 85° C for all packages. BLOCK DIAGRAM PIN ASSIGNMENT 1 www.DataSheet4U.com KKA3010 PIN DESCRIPTION PIN No 1 2 3-6 7 DESIGNATION X7 (IPU) SSM (I) Z0-Z3 (IPU) MDATA (OP3) DESCRIPTION sense input from key matrix system mode selection input sense inputs from key matrix generated output data modulated with 1/2 the oscillator frequency at a 25% duty factor generated output information scan drivers ground (0V) scan drivers oscillator input test point 2 test point 1 sense inputs from key matrix voltage supply 8 DATA (OP3) 9-13 DR7-DR3 (ODN) 14 GND 15-17 DR2-DR0 (ODN) 18 OSC (I) 19 TP2 (I) 20 TP1 (I) 21-27 X0-X6 (IPU) 28 Vcc (I) (I) = input (IPU) = input with p-channel pull-up transistor (ODN) = output with open drain n-channel transistor (OP3) = output 3-state FUNCTIONAL DESCRIPTION Keyboard operati...