NTE1562 Integrated Circuit Programmable Search System for Audio Cassette Description: The NTE1562 is a monolithic integrated circuit consisting of a program selector capable of automatic item selection with memory for 3 programs. The detection section is provided with protection from misoperation due to noise. Consideration has been given as well to prevention of misoperation when power is applied. The memory section is provided with LED driving outputs, enabling a display of the program selection status. Features: D Built−in Protective Circuit for Overcurrent D Detection Operation can be Stopped by External Input D Provided with a Resetting Function for the Power Supply Switching On D Wide Range of the Working Power Supply Voltage (4.5V to 14V) Applications: D Tape Decks D Radio Cassette Tape Recorders D Music Centers D Accompaniment Music Players Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V Power Dissipation (Note 1), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 540mW Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −25° to +75°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −50° to +125°C Note 1. Derating is done at 5.4mW/°C for operation above TA = +25°C. Electrical Characteristics: (TA = +25°C, VCC = 9V unless otherwise specified) Parameter Symbol Test Conditions Quiescent Current IQ Input Discriminating Voltage VIN f = 10kHz, Cf = 1µF Input Current IIN VIN = 0V Min Typ Max Unit − 10 25 mA −55 −52 −49 dBm − 0.2 2.0 µA High−Level Output Voltage VOH I1 = 40mA 6.0 7.0 − V Low−Level Output Voltage VOL I2 = 1.0mA − 0.3 0.5 V Electrical Characteristics (Cont’d): (TA = +25°C, VCC = 9V unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit − 120 − mA Output Limiting Current ILIM Blank Section Detection Timing TD RD = 220kΩ, CD = 0.47µF 55 75 95 ms Output Pulsewidth TW RW = 220kΩ, CD = 0.47µF 55 75 95 ms Item Detection Time TC RD = 220kΩ, CD = 2.2µF 30 75 130 ms Pin 15 Threshold Voltage V15TH 0.8 1.3 1.8 V Pin 16 Threshold Voltage V16TH 0.4 0.65 0.9 V ILED 7 10 − mA LED Drive Current Pin Connection Diagram Input 1 16 Reset Bias 2 15 Set Mute 3 14 LED1 Filter 4 13 LED2 Start 5 12 LED3 GND 6 11 N.C. Pulse 7 10 GND Output 8 9 VCC 16 9 .260 (6.6) Max 1 8 .300 (7.62) .785 (19.9) Max .200 (5.08) Max .245 (6.22) Min .100 (2.54) .700 (17.7)