SL486NADP

Obsolescence Notice This product is obsolete. This information is available for your convenience only. For more information on Zarlink’s obsolete products and replacement product lists, please visit http://products.zarlink.com/obsolete_products/ THIS DOCUMENT IS FOR MAINTENANCE PURPOSES ONLY AND IS NOT RECOMMENDED FOR NEW DESIGNS 3055-2.2 SL486 INFRA RED REMOTE CONTROL PREAMPLIFIER (Supersedes version in April 1994 Consumer IC Handbook, HB3120 - 2.0) The SL486 is a high gain preamplifier designed to form an interface between an infra-red receiving diode and the digital input of remote control receiving circuits. The device contains two other circuit elements, one to provide a stretched output pulse facility and a voltage regulator to allow operation from a wide range of supplies. DIODE CATHODE GYRATOR C2 GYRATOR C1 INPUT VCC (VCCI) 1 2 3 4 5 6 7 8 16 15 14 13 DIODE ANODE 1ST STAGE DECOUPLE INPUT VEE (VEEI) OUTPUT VEE (VEEO) REGULATOR INPUT (VREGIN) STRETCH OUTPUT STRETCH INPUT OUTPUT FEATURES s Fast Acting AGC Improves Operation In Noisy Environments SL486 2ND STAGE DECOUPLE 4TH STAGE DECOUPLE OUTPUT VCC (VCCO) AGC DECOUPLE 12 11 10 9 s Differential Inputs Reduce Noise Pick-up and Improve Stability s Gyrator Circuit Allows Operation in Environments with High Brightness Background Light Levels DP16 MP16 s Output Pulse Stretcher for use with Microprocessor Decoders Fig. 1 Pin connections - top view s On-chip Regulator allows Operation from Wide Range of Power Supplies ABSOLUTE MAXIMUM RATINGS Supply voltage, VCCI Supply voltage, VCCO Regulator input voltage, VREGIN Output current Stretch output current Operating temperature range Storage temperature 110V wrt VEEI 110V wrt VEEO 220V wrt VCCO 5mA 5mA 0°C to 170°C 255°C to1150°C s Low Noise Output ORDERING INFORMATION SL486 NA DP SL486 NA MP GYRATOR C1 C2 3 2 VCCI 4 2ND STAGE DECOUPLE 5 4TH STAGE DECOUPLE 6 VCCO 7 11 GYRATOR PULSE STRETCH STRETCH OUTPUT STRETCH INPUT 10 DIODE 1 CATHODE DIFFERENTIAL DIODE 16 INPUT STAGE ANODE 15k BUFFER 5·4k AGC PEAK DETECTOR VREG* REGULATOR 2·4k 9 OUTPUT 14 15 8 13 12 VEEI 1ST STAGE DECOUPLE AGC DECOUPLE VEEO *When regulator is used (see Application Notes). REGULATOR INPUT (VREGIN) Fig. 2 SL486 block diagram SL486 ELECTRICAL CHARACTERISTICS These characteristics are guaranteed over the following conditions (unless otherwise stated): TAMB = 125°C, VCCI = VCCO = VCC = 14·5V to 17·0V, VEEI = VEEO = VEE = 0V Characteristic Supply current (see note 1) Pin Min. 4,7 4 4,7 4,7 4,7 13 4,7 1,16 Minimum sensitivity of differential input 1,16 Common mode rejection Maximum signal input AGC range Output and Stretch output internal pull-up resistance Stretch output pulse width, tP 9, 11 11 1,16 3·0 9·0 74·0 168·0 35 4·0 68·0 55·0 2·4 3·513ID 4·5 8·4 5·9 6·2 Value Typ. 6·5 4·213ID 8·5 Max. 9·0 513ID 10 9·5 18 6·5 1·5 1·1 2·3 18·5 42·0 mA mA mA V V V V V nA nA nA dB mA (pk) dB kΩ ms Capacitance pin 9 to pin 10 (C8 on Figs. 4 and 8) = 10nF; 1·5 tP ≈ 2RX C8 loge  ms  VCC where RX = 200kΩ 625% and RX = internal resistance) ISINK = 0·2mA max. ISOURCE = 5µA ISINK = 1·6mA max. ISOURCE = 5µA, output open circuit Ripple amplitude at 100Hz, VREGIN = 0V Ripple amplitude at 100Hz, VEEO and VEEI = 0V VEEI = VEEO = VREG (see Figs. 4 & 6) VCCO1VREGIN = 116V TAMB = 170°C ID = 1·0µA ID = 100µA ID = 0·5mA VCC = 5·0V, ID = 1·0µA VCC = 4·5V, ID