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NTE1790 Integrated Circuit Video IF, Chroma Deflection
Description: The NTE1790 combines all the functions required for an NTSC color TV system on a 64-Lead DIP shrink type plastic package. This device is designed to have wide application capability, from a fundamental CTV application to a high-end MPX CTV with quasi-parallel SIF system, with minimal external parts and adjustments. A quasi-parallel SIF system assures buzz free sound reproduction. Features: PIF Section D 3-Stage Variable Gain PIF Amplifier D High Speed Peak AGC with Dual Time Constants D Single End AFT Output with Defeat Function D A Delayed RF AGC Output (Reverse AGC) D Sync Positive Detected Video Output Polarity D Internal Black/White Noise Inverter Quasi-Parallel Inter Carrier Detector D 3-Stage Variable Gain Intercarrier IF Amplifier D Independent Peak AGC D Intercarrier Detector with 90 deg. Carrier Shifter SIF Section: D 3-Stage Limiter Amplifier D Differential Peak Detector D Separated Detector Output and Electronic Attenuater Input for Multiplex TV Sound Reception D Excellent Electronic Attenuater D Preamplifier with an NF Terminal Video Section: D 2nd Order Picture Sharpness (DC Control) D Contrast Control with Uni-Color Function D Brightness Control with Pedestal Clamping Circuit (Adjustable DC Restoration Ratio) D Internal Vertical Blanking Chroma Section: D ACC Circuit D Color Control Circuit D Uni-Color Control Circuit D Adjustment Free APC Circuit D Tint Control Circuit With Sync Pulse Output D Color Differential Outputs
Deflection Section: D Excellent Sync Separator D Adjustment Free Count Down System D Stable Vertical Synchronization D Saw-Tooth Type AFC D Horizontal Pre-Driver D X-Ray Protector D Vertical Drive Amplifier Absolute Maximum Ratings: (TA = +25C unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V Input Signal Level, ein . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Vp-p RF AGC Voltage, VRFAGC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Horizontal Section Supply Voltage, VCCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2660mW Derate Above 25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212mW/C Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +65C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +150C Recommended Supply Voltage:
Parameter PIF Section (Pin19) QIF, SIF Section (Pin37) Video, Chroma, Deflection Section (Pin16) Horizontal Section (Pin58) Symbol Test Conditions Min 8.5 8.5 8.5 6.3 Typ 9.0 9.0 9.0 6.8 Max 9.5 9.5 9.5 7.3 Unit V V V V
AC Characteristics: (TA = +25C, VCC = 9V, 6.8V unless otherwise specified)
Parameter PIF Section Input Sensitivity IF AGC Gain Reduction Video Bandwidth Video Ripple Differential Phase Differential Gain Video White Peak Noise Inverter White Inverter White Clamp Black Inverter Black Clamp Carrier Suppression Harmonics Suppression Input Impedance Input Capacitance AFT Center Voltage No Signal Offset I2nd RiPIF CiPIF DP DG V47 VWTH VWCL VBTH VBCL vin GR BW 70 60 4.5 - - - 3.2 2.7 4.6 6.4 4.8 40 40 1.75 2 5.1 - 120 64 - 0 - - 3.7 3.0 5.0 6.8 5.2 - - 2.5 4 6.5 - 200 - - 1 5 10 4.4 3.3 5.4 7.2 5.6 - - 3.25 8 10.3 3 Vrms dB MHz dB deg. % V V V V V dB dB k pF V V Symbol Test Conditions Min Typ Max Unit
AC Characteristics (Cont'd): (TA = +25C, VCC = 9V, 6.8V unless otherwise specified)
Parameter PIF Section (Cont'd) AFT Sensitivity AFT Voltge Swing 920kHz Beat QIF Section Input Sensitivity 4.5MHz Output Level AGC Gain Reduction Input Impedance Input Capacitance SIF Section Limiting Sensitivity Detected Output AM Rejection SIF Bandwidth THD Bandwidth Attenuation AC Gain Maximum Attenuation AF Amp AC Gain Video Section Input Impedance, Pin52 Input Impedance, Pin53 Video Output Impedance Brightness Control Voltage Brightness Sensitivity Minimum Linear Video Input Maximum Linear Video Input Video Input Dynamic Range Minimum Video Output Maximum Video Output 2nd Order Differential Input Dynamic Range Video Gain Frequency Response Contrast Control Voltage Range Contrast Control Range Contrast Control Center Voltage Frequency Response Dependence Frequency Response at Minimum Picture Control Maximum Control Center Control Picture Control Voltage Range zi52 zi53 zo13 VBR GBR Vdi1 Vdi2 Vdi Vdo1 Vdo2 VdiP GV Gf dVct dGct Vcto dGf dGpsmin dGpsmax dGps0 dVps 1.8 14 15 3.9 3.0 - 5.0 2.7 0 7.5 0.3 3.2 -3.2 0.71 11 4.2 - -10 10 -3.0 0.68 2.5 19 30 4.3 3.4 2.3 5.5 3.2 0.3 7.9 0.4 4.2 -1.0 1.4 12 4.5 0 -6 11 -1.7 1.2 3.2 24 100 4.7 3.8 2.7 - - 1.1 9.0 0.5 4.9 -0.8 2.09 13 4.8 0.9 -3.4 12 0 1.43 dB V dB V dB dB dB dB V V V VP-P V V VP-P k k V vLIM vOD AMR BW SIF BD THD GVATT ATTmax GVAF THD = 1.5% 115 130 20 120 100 4 70 - 140 155 - 160 140 6 - 18 180 - - - - 8 - - Vrms mVrms dB kHz kHz dB dB dB GR Q RiQIF CiQIF vinQ 70 1.0 60 1.75 2 120 1.5 64 2.5 4 200 2.0 - 3.25 10 Vrms VP-P dB k pF A I920 - 6 32 15 11 - 25 - - kHz/V V dB Symbol Test Conditions Min Typ Max Unit
AC Characteristics (Cont'd): (TA = +25C, VCC = 9V, 6.8V unless otherwise specified)
Parameter Video Section (Cont'd) Vertical Blanking Pulse Output Level Horizontal Blanking Pulse Detection Level Horizontal Blanking Input Current Chroma Section ACC Characteristics Demodulator Color Differential Output ea A eR1 eG1 eB1 Color Killer Residual eKR eKG eKB Color Control Residual eCR eCG eCB Color Control Voltage Color Control Range Uni-Color Control Range Uni-Color Control Voltage Uni-Color Control Range Color Control Phase Change Uni-Color Control Phase Change Maximum Input of Bandpass Amplifier Tint Control Range Tint Control Range Tint Control Voltage Tint Control Voltage Range Sync Pulse Width Sync Pulse, High Sync Pulse, Low APC Frequency Control Sensitivity APC Pull-In Range APC Hold Range Sweeper Amplitude V3 dV3 eU V8 dV8 d0C d0U eM d0 d01 d02 V2 dV2 St VS1 VS2 b fP fHld SEV1 SEV2 SEV Sweeper Period tE1 tE2 tE Killer Level eK 0.72 - 1.0 0.35 1.19 - - - - - - 4.1 0.7 10.5 4.1 0.7 - - 0.48 78 35 31 4.0 0.25 - - - - - - - - 0.8 4 35 39 0.4 1.54 1.0 1.47 0.51 1.75 - - - - - - 4.6 1.4 12.0 4.6 1.4 - - 0.6 100 55 45 4.6 0.5 4.5 5.42 3.6 7.0 1.3 2.5 4.0 3.0 1.0 7 55 62 1.0 - 1.3 2.0 0.71 2.44 10 10 10 10 10 10 5.1 2.1 13.5 5.1 2.1 5 7 - 131 - - 5.1 0.75 - - - - - - - - 1.2 10 77 87 - VP-P VP-P VP-P VP-P VP-P mV mV mV mV mV mV V V dB V V deg. deg. VP-P deg. deg. deg. V V s V V Hz/mV Hz Hz V V VP-P ms ms ms mVP-P VV VH IH 8.0 8.0 1.5 8.9 8.4 2.5 9.0 8.8 4.0 V V mA Symbol Test Conditions Min Typ Max Unit
AC Characteristics (Cont'd): (TA = +25C, VCC = 9V, 6.8V unless otherwise specified)
Parameter Chroma Section (Cont'd) Demod Output DC Voltage Maximum Demod Output R.G.B ER EG EB Demod Relative Amplitude Demod Relative Phase Demod Output Residual Carrier R/B G/B R-B G-B ECR ECG ECB Deflection Section Pin57 Input Current Sync Signal Delay Time Pin56 Terminal Voltage Pin56 Output Current Gate Pulse Width Gate Pulse Delay Chroma Sweep Pulse Width Vertical Masking Pulse (Gate) Vertical Masking Pulse (Horizontal AFC) Vertical Sync Integrating Time Constants Vertical Retrace Pulse Width Vertical Amp Gain Vertical Amp Input Dynamic Range Vertical Amp Output Dynamic Range Vertical Amp Maximum Output Current Horizontal 32fH Oscillator Starting Voltage Horizontal Drive Output Starting Voltage Horizontal Drive Output Starting Current Horizontal Oscillator Frequency fH temperature Drift fH VCC Coefficient Horizontal Output Duty Horizontal Output Saturation Voltage fH Pull-In Range fH Hold Range X'Ray Sense Voltage X'Ray Sense Current TVS TVO55 GVA54 Vi55 VH55 VL55 IO54 VCC581 VCC582 ICC58 fH dfHT dfHV TO64 VOL64 dfpull dfhold Vin1 Iin1 8.7 1.1 5.1 1.1 11.2 1.7 2.7 4.0 15654 40 0 39 0 550 550 1.1 0.05 IR57 tpdr tpdf V56 IO56 Tpw8 tpd8 Tcwt - 0 0 5.2 2.0 2.7 0.2 - - 40 60 5.7 3.0 3.0 0.4 8H 1 100 100 6.2 4.9 3.6 0.6 - A ns ns V A s s 4.9 3.9 1.3 3.9 0.71 0.23 102 227 - - - 5.6 4.6 1.54 4.6 0.84 0.29 109 242 - - - 6.4 5.9 2.0 5.9 0.97 0.35 116 252 300 300 300 deg. deg. mVP-P mVP-P mVP-P V VP-P VP-P VP-P Symbol Test Conditions Min Typ Max Unit
256.25H to 10.25H 256.25H to 10.25H 12 16 10H / 11H 9.5 1.6 6.2 1.9 16.8 2.0 3.0 5.4 15734 70 -20 41 0.2 750 750 1.3 0.4 10.7 - 7.3 3.1 25.0 2.5 3.2 6.8 15814 100 -40 43 0.3 880 880 1.5 1.0 dB V V V mA V V mA Hz Hz Hz % V Hz Hz V A 34 s
AC Characteristics (Cont'd): (TA = +25C, VCC = 9V, 6.8V unless otherwise specified)
Parameter Deflection Section (Cont'd) X'Ray Protector Recovering Voltage Vertical Sync Pull-In Range VHold fPV1 fPV2 1.0 - - 1.4 232.5H 296.5H 1.7 - - V Symbol Test Conditions Min Typ Max Unit
Pin Connection Diagram
X-Ray Protect Tint Control Color Control fSC VCO Killer Filter fSC VCO APC Filter Contrast Control R - Y Output G - Y Output B - Y Output GND -Y Output Pedestal Clamp Brightness 9V VCC V/C/D Bypass RF AGC Delay 9V VCC PIF PIF Input PIF Input PIF AGC Time Constant PIF AGC Time Constant GND QIF Input QIF Input QIF AGC Time Constant Preamp Output NFB Volume Control Audio Input FM Detector Tank 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 Horiz Driver Output 32fH VCO 32fH VCO 32fH VCO AFC Time Constant Flyback Pulse Input H VCC (6.8V) Sync Sep Input Sync Sep Time Constant Vertical NFB Vertical Output Video Input Differential Input Picture Sharpness GND Chroma Input ACC Filter Video Output RF AGC Output Video Detector Tank Video Detector Tank AFT Tank/Defeat AFT Output 4.5MHz Output GND I/C Detector I/C Detector 9V VCC Q-SIF SIF Input SIF Bias Detector Output FM Detector Tank
64
33
1
32
2.270 (57.65) Max .236 (6.0) Max
.708 (18.0) Min
.070 (1.78)
.106 (2.7) Min
.750 (19.0)

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