RGB ENCODER FOR PAL/NTSC FUNCTIONS FEATURES BLOCK DIAGRAM 24-SOP-300

Transcription

1 The KA2198D is a monolithic circuit designed for encoder of video system. This device provides encoding system of PAL and NTSC video signal. The KA2198D contains matrix of -Y/-Y, modulator, pulse generator, regulator, built in PF of chroma and delay line of luminance, Y/C output using S-VHS system. It is suitable for video equipment. 24-SOP-300 FUNCTIONS egulator Mixer of -Y, -Y Modulator Pulse generator (ECL circuit) Audio buffer Clamp circuit Y-TAP filter PF & D.L circuit Y/C output driver ODE FOMATION Device Package Operating Temperature KA2198D 24-SOP C~65 C FEATUES Lower operating voltage : V CC = 5V Stabilized bias condition in regulator Abailable PAL/NTSC system Included 75 ohm driver ( output, composite video output, Y/C output) External fsc ( color sub-carrier) Include PF & delay line Audio buffer circuit -Y, -Y modulator Available S-VHS High frequency response of luminance LOCK DIAAM ,, O U T P U T VIDEO PUT Y/C MIXE Y C Vref D.L MATIX SYNC. ADDE -Y MODULATO PF -Y MODULATO C A M P,, CLAMP PHASE CONTOL A U D I O U F F E SYNC

2 P CONFIUATION Pin No. DESCIPTION Pin No. DESCIPTION 1 ND1 13 N.C 2 PUT 14 2V EULATO 3 PUT 15 C. 4 PUT 16 Y 5 N.C 17 Y-TAP FILTE 6 fsc PUT 18 N.C 7 NTSC/PAL SW 19 VCC COMPOSITE VIDEO PUT 9 21 PUT 10 COMPOSITE SYNC. 22 PUT 11 N.C 23 PUT 12 VCC1 24 ND2 (note) V CC 1, ND1 : except output stage V CC 2, ND2 : output stage supply voltage ASOLUTE MAXIMUM ATS (T A =25 C) Characteristics Symbol Value Unit MAX Supply Voltage V CCMAX 10 V Power Dissipation P D 1250 mw Operating Temperature T OP -20~70 C Storage Temperature T ST -55~150 C ELECTICAL CHAACTEISTICS (T A =25 C,V CC =5V) Characteristics Symbol Test Conditions Min Typ Max Unit Supply Current 1 I CC 1 No signal input ma Supply Current 2 I CC ma Output Voltage V O,, input signals V P-P Output Voltage V O Vin=1.0 V P-P, f=200khz V P-P Output Voltage V O V P-P Frequency esponse FC,, input signals MHz Frequency esponse FC Vin=1.0 V P-P, f=200khz MHz Frequency esponse FC (-3d point) MHz Y Frequency esponse Y FCN Y (-3d point) MHz 100% Y Level V Y 1,, input signals atio(cvs) 100% Y Level V Y 1 Vin=1.0 V P-P atio(cvs) 100% Y Level atio(cvs) V Y 1 (100%,, / 100% Y)

3 Characteristics Symbol Test Conditions Min Typ Max Unit 100% Y Level ( CVS ) V YW V P-P Sync. Level 1 ( CVS ) V SNC V P-P 100% Y Level atio (Y ) V Y2,, input signal % Y Level atio (Y ) V Y2 Vin=1.0V P-P % Y Level atio (Y ) V Y2 (100%,, / 100% Y) % Y Level (Y ) V YW V P-P Sync. Level 1 (Y ) V SNC V P-P Audio uffer ain a Audio Input d Audio Frequency esponse Fa 100KHz, 1V P-P KHz Audio Distortion THD % NTSC mode Chroma atio 1 (CVS) / Chroma atio 1 (CVS) /1 fsc input 3.58MHz, 400mV P-P Chroma atio 1 (CVS) /1 ( check CVS out ) urst level 1 (CVS) Vob V P-P Chroma atio 2 (C ) / Chroma atio 2 (C ) /2 fsc input 3.58MHz, 400mV P-P Chroma atio 2 (C ) /2 ( check C out ) urst level 2 (C ) Vob V P-P Phase (CVS) S N deg Phase (CVS) S N fsc input 3.58MHz, 400mV P-P deg Phase (CVS) S N ( check CVS out ) deg urst Width T WN usec urst Position T PN usec Carrier Leakage CL CVS out, Y out V P-P PAL mode Chroma atio 3 (CVS) / Chroma atio 3 (CVS) /3 fsc input 3.58MHz, 400mV P-P Chroma atio 3 (CVS) /3 ( check CVS out ) urst level 3 (CVS) Vob V P-P Chroma atio 4 (C ) / Chroma atio 4 (C ) /4 fsc input 3.58MHz, 400mV P-P Chroma atio 4 (C ) /4 ( check C out ) urst level 4 (CVS) Vob V P-P Phase (CVS) S P deg Phase (CVS) S P fsc input 3.58MHz, 400mV P-P deg Phase (CVS) S P ( check CVS out ) deg urst Width T WP usec urst Position T PP usec PAL urst Phase 1 P1 CVS out, Y out deg PAL urst Phase 2 P deg Y Frequency esponse Y FCP Y output (-3d point) MHz

4 TEST WAVEFOM < PUT SINAL > < PUT SINAL > SYNC. PUT ( P 10) 4 V 0 V CVS (P 20) (P 2) (P 3) C (P15) (P 4) Y (P16) (P 8) 1kHz (P 9) 1kHz fsc (P 6) 3.58 MHz(NTSC), 4.43MHz(PAL) 0.3 ~ 5.7 Vp-p

5 APPLICATION CICUIT CVS Y C 75 Ø 75 Ø 75 Ø 75 Ø *L 75 Ø 75 Ø 0.01 ìf Vcc (5V) 100 ìf ìf 470 ìf 470 ìf 470 ìf 470 ìf 470 ìf 10 ìf *C KA2198D ìf 0.1 ìf 0.1 ìf Vcc (NTSC) ND (PAL) fsc in C.SYNC 0.3 ~5.7Vpp 3.58MHz(NTSC), 4.43 MHz(PAL) SYSTEM Fo(MHz) L(uH) C(pF) NTST PAL

6 CVS Y C 75 Ø 75 Ø 75 Ø 75 Ø 75 Ø 75 Ø 0.01 ìf Vcc (5V) 100 ìf *100 ìf ìf 470 ìf 470 ìf 470 ìf 470 ìf 470 ìf 10 ìf *20PF KA2198D ìf 0.1 ìf 0.1 ìf 10 ìf 10 ìf Vcc (NTSC) ND (PAL) * Only for ame Machine fsc in C.SYNC 200 ~4000mVp-p 3.58MHz(NTSC), 4.43 MHz(PAL)