NTE1658 Integrated Circuit Television Tuner Band Selector Description: The NTE1658 is an integrated circuit in a 9–Lead SIP type package designed for electronically tuning television sets. This IC is used for producing the VHF channel “L” band power supply/VHF channel “H” band power supply/UHF channel power supply for tuner and the CATV power supply according to the band select signal of 2 inputs. Functions: D VHF “L” Band Power Supply Output D VHF “H” Band Power Supply Output D UHF Power Supply Output D CATV Power Supply Output Features: D 2 Inputs and 4 Outputs D Output Low Saturation Voltage: 250mV Typ (IO = 60mA) Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Maximum Supply Voltage, V9max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Maximum Load Current I1max, I2max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –60mA I7max, I8max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –60mA Maximum Supply Current (VCC2), I6max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA Input Current, I3max, I4max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2mA Allowable Power Dissipation, Pdmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200mW Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +85°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C Electrical Characteristics: (TA = +25°C unless otherwise specified) Parameter Dissipation Current Symbol Test Conditions I1, I2, I7, I8 Output Saturation Voltage V9 = 12V, I6 = 5mA, IO = 60mA Min Typ Max Unit – – 60 mA 0 250 700 mV Input “H” Level Threshold Voltage VTH – – 3.0 V Input “L” Level Threshold Voltage VTL 0.8 – – V – – 50 µA Output Leakage Current I1, I2, I7, I8 TA ≤ +70°C Note 1. Current flowing into IC: Plus (No Sign) Current flowing out of IC: Minus Truth Table Input Output Pin3 Pin4 Pin1 Pin2 Pin7 Pin8 L L H Z Z Z H L Z H Z Z L H Z Z H Z H H Z Z Z H Note 2. Z: High Impedance Input Threshold Voltage: VTL = 800mV, VTH = 3V Pin Connection Diagram (Front View) 9 VCC 1 8 Output 4 7 Output 3 6 VCC 2 5 GND 4 Input 3 Input 2 Output 2 1 Output 1 .118 (3.0) .862 (21.89) .059 (1.5) .053 (1.35) .177 (4.5) 1 9 .110 (2.8) .100 (2.54) .031 (0.78)