NTE7168 Integrated Circuit NTSC Single Chip Color TV Description: The NTE7168 combines all the functions required for an NTSC color TV system in a 56 - Lead DIP type package. This device includes PIF/SIF circuits, video/chroma/deflection circuits, chroma band pass filters, red and green OSD interfaces, and 1ch Audio Video switches. Features: PIF Stage D 3 - Stage Variable - Gain PIF Amplification Stage D High - Speed Response AGC with Dual Time Constants (Peak AGC) D Single End AFT Output with Defeat Function D RF Delay AGC Output (Reverse AGC) D Sync. Negative Detected Video Output Polarity D Internal Black/White Noise Inverter D Minimum Externally Mounted Parts and Adjusting Spots SIF Stage D 3 - Stage limiter Amplification Stage D Quadrature FM Detector Circuit with Sound Mute Function D 1 Channel External Audio Input D High - Performance Electronic Attenuator Circuit D Preamplifier Circuit Video Stage D 2nd Order - Differential - Type Picture Sharpness Circuit (DC Control) D Contrast Control with Unicolor Function D Brightness Control with Pedestal Clamping Circuit (Variable DC Restoration Ratio) D External Video Input Chroma Stage D Internal 1/2fSC Trap D Internal band Pass Filter D ACC Circuit D Color Control Circuit D Unicolor Control Circuit D Color Differential Output D Tint Control Circuit D Adjustment - Free APC Circuit Features (Cont’d): Deflection Stage D High - Performance Sync Separation Circuit D Adjustment - Free Horizontal Oscillation Circuit D Stable Vertical Synchronization D Sawtooth - Type AFC (Internal sawtooth Wave Generator) D Horizontal Predrive Output D X - Ray Protection Circuit D Vertical NFB Amplification Circuit OSD Interface Stage D Fast Blanking SW Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Power Supply Voltyage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13V Input Terminal Voltage, Vin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to VCC+0.3V Input Signal Amplitude, ein . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4VP - P Power Dissipation (Note 1), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.92W Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 20° to +65°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 55° to +150°C Note 1. When using the device at above TA = +25°C, decrease the power dissipation by 15.3mW for each increase of +1°C. Recommended Power Supply Voltage: Parameter Symbol Power Supply Voltage Test Conditions VCC Pin14, Pin48 H. VCC Pin26 Min Typ Max Unit 8.5 9.0 9.5 V 8.5 9.0 9.5 V OSD Logic Table: Input Output Mode YS (Pin29) R (Pin19) G (Pin20) B (Pin28 R-Y (Pin15) B-Y (Piin17) G-Y (Pin18) TV L L L L TV TV TV Black H L L L L L L Red (*) H L L H L L Blue (*) L L H L H L Green (*) L H L L L H Yellow (*) H H L H L H Magenta (*) H L H H H L Cyan (*) L H H L H H White (*) H H H H H H (*): Don’t Care. Pin Connection Diagram Audio Output 1 56 Audio Control RF AGC Output 2 55 Audio TV Input RF AGC Delay 3 SIF Tank 4 1st AGC 5 54 De - Emphasis 53 SIF Input External Audio Input 6 2nd AGC 7 PIF/SIF GND 8 PIF Input (1) 9 PIF Input (2) 10 fc Adjustment 11 APC Filter 12 3.58 X’tal 13 V/C/D VCC 14 52 AFT Output 51 AFT Tank 50 PIF Tank (2) 49 PIF Tank (1) 48 PIF/SIF VCC 47 TV Detection Output 46 Tint Control 45 TV Input 44 Color Control R - Y Output 15 - Y Output 16 43 Contrast Control 42 External Video Input 41 V/C/D GND G - Y Output 17 40 Video OUT (1) B - Y Output 18 39 Vert Sync Sep Filter R OSD Input 19 38 Brightness Control G OSD Input 20 37 Video IN FBP Input 21 36 Sharpness Control X - Ray 22 35 OSD Bright Control Horizontal Output 23 Horizontal AFC 24 32fH VCO 25 H. VCC 26 Vertical Output 27 B OSD Input 28 34 Video Out (2) 33 Chroma Input 32 Killer Filter 31 Vertical Ramp 30 Vertical NFB 29 YS OSD Input 56 29 1 28 2.000 (50.9) Max .551 (14.0) .165 (4.2) .070 (1.78) .118 (3.0) .600 (15.24)