AD725: 輝度トラップ・ポートを備えた低コスト RGB-NTSC ／ PAL エンコーダ

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1 AD725 NTSC/PAL HSYNC VSYNC 4FSC CLOCK XNOR CSYNC 4FSC CSYNC BURST NTSC/PAL 4FSC FSC 90 C FSC 0 C CSYNC FSC 90 C/270 C CLOCK AT 8FSC RED DC CLAMP Y X2 GREEN BLUE DC CLAMP DC CLAMP U V NTSC/PAL X2 X2

3 STND AGND 4FSC APOS CE RIN GIN BIN HSYNC VSYNC 3 4 AD DPOS DGND 5 12 YTRAP LUMA COMP 8 9 CRMA WARNING! ESD SENSITIVE DEVICE

4 APOS DPOS DPOS DPOS APOS DPOS 1kΩ DGND 7 8 DGND AGND DGND AGND DGND 1 V CLAMP

5 AD725 RGB 3 GENLOCK FSC HP3314A 4 PLL +5V 4FSC 1.0 APL = 50.8% µ APL = 50.% µ 50 IRE µ s µ s

6 1.0 APL = 4.% µ APL = 33.5% µ 50 IRE µ s µ s 200mV 1µ s 200mV 1µ s

7 1.0 APL = 48.2% µ APL = 48.2% µ 100 MHz 1MHz 2MHz 3MHz 4MHz 5MHz 50 0 IRE 1MHz 2MHz 3MHz 4MHz 5MHz MHz 50 0 IRE µ s µ s 4.80µ s 5.57µ s 9.35µ s 9.0 CYCLES 4.90µ s 5.7µ s 2.29µ s 85ns 89ns 38.0 IRE 3.1 IRE 70ns 89ns 287.7mV 273.4mV DG DP (NTSC) Wfm > MOD 5 STEP MIN = 5 MAX = 0.39 pk pk/max = MIN = 0.33 MAX = 1.17 pk pk = ST 2ND 3RD 4TH 5TH TH DG DP (PAL) Wfm > MOD 5 STEP MIN = MAX = 0.43 pk pk = MIN = 0.44 MAX = 1.34 pk pk = ST 2ND 3RD 4TH 5TH TH

8 AD725 4FSC NTSC/PAL HSYNC VSYNC BURST NTSC/PAL FSC 90 C FSC 0 C 4FSC FSC 90 C/270 C CSYNC CSYNC RED GREEN BLUE CSYNC Y U V NTSC/PAL X2 X2 X2 4FSC CLOCK DC CLAMP DC CLAMP DC CLAMP XNOR +5V +5V AGND DGND

10 t SW t SM t SB t MW tsr trw t SD t DW LUMA t SS t BY t BC CRMA t SC

12 +5V +5V POWER DOWN 10µ F 0.1µ F 0.1µ F 0.1µ F 0.1µ F CE RIN GIN BIN 4 APOS AD DPOS CMPS µ F 10µ F 220µ F NTSC/ PAL +5V (V AA ) 4FSC CLOCK MHz (NTSC) OR MHz (PAL) 0.1µ F 47kΩ 1N V 9pF 0.1µ F 18pF OSC 8µ H 1 HSYNC 15 VSYNC 4FSC STND YTRAP AGND 2 LUMA 11 CRMA 9 DGND µ F 220µ F C Y S-VIDEO (Y/C VIDEO) 1/3 AD8073 1kΩ 1kΩ 1kΩ 1kΩ 1/3 AD8073 B G VSYNC HSYNC 1/3 AD8073 R 1kΩ 1kΩ 5V 0.1µ F

13 AD725 R1 1MΩ Y1 U1A U1B R2 200Ω C2 0pF C1 47pF C3 ~15pF (OPT) HC04 HC04

14 = = =

15 MHz MHz NTSC/ PAL A B A/ B 4FSC LUMA STND 47kΩ D1 1N4148 AD kΩ C2 9pF YTRAP L 8µ H C1 18pF CRMA COMP LUMA 220µ F 220µ F 220µ F

16 µ s IRE CSYNC NTSC/PAL 47kΩ 1N4148 OUT 1V IN 9pF + +5V +5V OSC 10kΩ 10µ F 8µ H 18pF 7 GIN 8 REF SOURCE MEASURE RIN BIN 0.1µ F 15 VSYNC 1 HSYNC 4FSC STND YTRAP +5V +5V 4 APOS AGND 2 14 DPOS AD725 DGND 13 COMP CRMA ENCD + 0.1µ F 10µ F 9 5 SOURCE BIAS LUMA 11 NC 1V 220µ F + NC +5V

17 HSYNC VSYNC CSYNC

18 (10) (10) (7.0) (7.40) (1) (10) 118 (0.30) 040 (0.10) (2.5) 92 (2.35) 291 (0.74) 098 (0.25) x (1.27) BSC 192 (0.49) 138 (0.35) (1.27) (0.32) 157 (0.40) 091 (0.23)

20 AD725 PRINTED IN JAPAN D /99,1A

AD8515: 1.8 V 低電力 CMOS レール to レール入力／出力オペアンプ

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