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NTE1845 Integrated Circuit TV Video Processor
Description: The NTE1845 is a small-sized multifunctional IC containing the "video, chroma, deflection" circuit of NTSC color TV in a shrink type 30-Lead DIP package. Besides being small-sized, it has such features as greately reduced number of parts and fewer adjustments required. The device contains a peak clip circuit and is well suited for use in small-sized sets. Features: D Small-Sized Package D Minimum Number of Parts Required D Fewer Adjustments Required D Chroma VCO (APC) D Horizontal OSC (H-Hold) D Vertical OSC (V-Hold) D Multifunction Absolute Maximum Ratings: (TA = +25C unless otherwise specified) Maximum Supply Voltage, V16(max) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V Maximum Supply Current, I22(max) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15.0mA Allowable Power Dissipation (TA +65C), PD(max) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1100mW Operating Temperature Range, Topg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +85C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +125C Recommended Operating Conditions: (TA = +25C unless otherwise specified) Recommended Supply Voltage, V16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V Recommended Supply Current, I22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 to 14V Operating Current Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 to 15.0mA
Electrical Characteristics: (TA = +25C, V16 = 12V, I22 = 10mA unless otherwise specified)
Parameter Chroma ACC Amplitude Characteristics ACC1 ACC2 ACC Phase Characteristics ACC1 ACC2 Maximum B-Y Demodulation Output Unicolor Amplitude Characteristics Tint Change Range APC Pull-In Range Color Difference Output DC Voltage Color Difference DC Difference Voltage R-Y Relative Demodulation Angle G-Y Relative Demodulation Angle R-Y Demodulation Ratio G-Y Demodulation Ratio Video Video Tone Control Characteristics Gpmin Gpmax Video Voltage Gain Contrast Variable Range Frequency Response Synchronization, Deflection Sync Separation Input DC Level Vertical Free-Running Frequency Vertical Blanking Pulse Width Vertical Drive Stage Voltage Gain Horizontal Free-Running Frequency Horizontal Drive Output Pulse Width Horizontal Sync Pull-In Range VS.S fV TBL VG fH TH fPULL - - - - - - 400 9.3 fH/296.5 19H 16 15.734 24.5 - - - - - - - - dB kHz s Hz V Hz VG GC GV f = 5MHz -5 12 12 - -5 -3 15 15 18 - -1 18 18 - - dB dB dB B dB B-Y max GU T fAPC ERGB ERGB R-Y/B-Y G-Y/B-Y R-Y/B-Y G-Y/B-Y -3 -7 - - 5.0 - - 300 6.7 - - - - - 0 0 0 0 - 17 110 - 7.2 - 104 -122 0.9 0.3 +3 +2 3 7 - - - - 7.7 300 - - - - V mV deg deg dB dB deg deg VP-P dB deg Symbol Test Conditions Min Typ Max Unit
Pin Connection Diagram 2nd BPA Sharp Video Soft Video Contrast Contrast VR Pedestal Clamp Brightness Control Brightness VR R-Y G-Y B-Y Color Killer Tint Control VCO APC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 1st BPA ACC GND Sync Separator Burst Gate Pulse Vert Sync Separator Ramp Generator Vert Driver (+) BH (110V) AFC (+) BH Horiz OSC X-Ray Protect Horiz Pre-Driver Output VCC
30
16
1 1.066 (27.0)
15 .388 (8.6)
.200 (5.08) Max
.070 (1.78)
.125 (3.17)
.400 (10.16)

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