NTE1556 Integrated Circuit VIR Signal Processor for Color TV Description: The NTE1556 is a monolithic digital integrated circuit in a 16–Lead DIP type package which automatically corrects the tint (hue) and color (chroma) of color TVs using VIR signals. This device constantly provides optimum colors when added to the chroma circuit. Features: D Single Chip Construction with Functional Circuits for VIR Signal Detection, Tint Control, and Color Control D Low Power Consumption D Few External Components Required and can be used without any Adjustments Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Maximum Supply Voltage, VCCmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Pin Current Pin10, I10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA Pin6, I6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –10mA Pin14, I14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –10mA Allowable Power Dissipation (TA ≤ +65°C), Pdmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +75°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C Electrical Characteristics: (TA = +25°C, VCC = 12V unless otherwise specified) Parameter Circuit Current Symbol Test Conditions Min Typ Max Unit I15 SG2 = 65mVPP, SG3 = 0, SG5 = 0.55VPP – 15.5 – V LED Driver Output High Level V10H SW1: OFF 10.9 – – V Low Level V10L SW1: ON – – 0.4 V Tint Control Output High Level V6H SW1: ON, V4 = 0V – 10.0 – V Low Level V6L SW1: ON, V4 = 2V – 5.65 – V V14H SW1: ON, V13 = 0V – 8.7 – V V14L SW1: ON, V13 = 1.7V – 3.3 – V Color Control Output High Level Low Level Electrical Characteristics (Cont’d): (TA = +25°C, VCC = 12V unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit VIR Tint Adjustment Voltage V6 SW1: ON – 1.6 – VPP Tint Control Characteristics High Level V4H SG2 = 0 6 – – VPP V4L SG2 = 65mVPP – – 50 mVPP V13H SG5 = 650mVPP 6 – – VPP V13L SG5 = 550mVPP – – 50 mVPP VKIL SG3 level at which LED is turned OFF – 0.28 – VPP Low Level Color Control Characteristics High Level Low Level VIR Killer Input Level Pin Connection Diagram VCC 2 1 16 Composite Sync Flyback Pulse Input 2 R–Y Input 3 15 VCC 1 14 Color Control Output Auto Tint Input 4 Tint Fine Adjust Output 5 13 Manual Color 12 B–Y Input Tint Control Voltage Output 6 11 Y Input Composite Video 7 10 VIR Indicator GND 8 16 9 RC Filter 9 .260 (6.6) Max 1 8 .785 (19.9) Max .300 (7.62) .200 (5.08) Max .245 (6.22) Min .100 (2.54) .700 (17.7)