NTE1838 & NTE1856 Integrated Circuit Color TV Video/Chroma/Deflection Circuit Description: The NTE1839 and NTE1856 are small–sized multifunctional integrated circuits containing the “video, chroma, deflection” circuit of NTSC color TVs in a 30–Lead DIP type package. Besides being small– sized, they have such features as fewer external components and fewer adjustments. required. The NTE1838/NTE1856 can be used in conjunction with the NTE1728 for “VIFSIF” use or the NTE1773/NTE1797 for “vertical output” use to perform all color TV signal processings. The NTE1856 contains a peak clip circuit in the video circuit making it well suited for use in small–sized TV sets while the NTE1838 contains no peak clip circuit and is suited for large–sized TV sets. Features: D Small–Sized Package D Minimum Number of External Components Required D Fewer Adjustments Required (Non–Adjusting of Functions Shown Below) G Chroma VCO (APC) G Horizontal OSC (H–Hold) G Vertical OSC (V–Hold) D Multifunctional Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Maximum Supply Voltage, V16max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V Maximum Supply Current, I22max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15mA Allowable Power Dissipation (TA ≤ +65°C), Pdmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1100mW Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +85°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C Recommended Operating Conditions: (TA = +25°C unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit Recommended Supply Voltage V16 9.0 12.0 14.0 V Recommended Supply Current I22 8.5 10.0 15.0 mA Electrical Characteristics: (TA = +25°C, V16 = 12V, I22 = 10mA unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit ACC1 –3 0 +3 dB ACC2 –7 0 +2 dB ACCØ1 – 0 ±3 deg ACCØ2 – 0 ±7 deg B–Ymax 5.0 – – VPP ∆GU – 17 – dB Tint Change Range ∆T – 110 – deg APC Pull–In Range fAPC ±300 – – Color Difference Output DC Voltage ERGB 6.7 7.2 7.7 V Color Difference DC Difference Voltage E∆RGB – – ±300 mV R–Y Relative Demodulation Angle ∠R–Y/B–Y – 104 – deg G–Y Relative Demodulation Angle ∠G–Y/B–Y – –122 – deg R–Y Demodulation Ratio R–Y/B–Y – 0.9 – G–Y Demodulation Ratio G–Y/B–Y – 0.3 – GPmin –5 –3 –1 dB GPmax 12 15 18 dB VG 12 15 18 dB Contrast Variable Range ∆GC – 18 – dB Frequency Response ∆GV –5 – – dB VSS – 9.3 – V fV – fH/296.5 – Hz Vertical Blanking Pulse Width TBL – 19H – Vertical Drive Stage Voltage Gain VG – 16 – dB Horizontal Free–Running Frequency fH – 15.734 – kHz Horizontal Drive Output Pulse Width TH – 24.5 – µs fPULL ±400 – – Hz Chroma ACC Amplitude Characteristic ACC Phase Characteristic Maximum B–Y Demodulation Output Unicolor Amplitude Characteristic Video Video Tone Control Characteristic Video Voltage Gain f = 5MHz Synchronization, Deflection Sync Separation Input DC Level Vertical Free–Running Frequency Horizontal Sync Pull–In Range Pin Connection Diagram Color Control 1 Video Input 2 30 Chroma Amp Input 29 ACC Filter Sharpness Control 3 Delay Input 4 28 GND 27 Sync Separator Contrast Control 5 Clamp Filter 6 26 Burst Gate Pulse Brightness Control 7 24 Ramp Generator 25 Vert Sync Separator Y Output 8 23 Vert Driver Output R–Y 9 G – Y 10 22 Horiz VCC 21 AFC B – Y 11 20 Horiz OSC 19 Horiz OSC X’tal 18 X’Ray Protect Input Color Killer 12 Tint Control 13 VCO 14 17 Horiz Pre–Drive Output 16 VCC Filter 15 30 16 1 15 .388 (8.6) 1.066 (27.0) .200 (5.08) Max .070 (1.78) .125 (3.17) .400 (10.16)