AN2493FH

ICs for VCR AN2492FH Luminance and chrominance signal processing circuit for 8 mm video (NTSC) Unit: mm s Overview The AN2492FH is a single chip LSI on which Y/C main signal processing circuit of NTSC normal 8 mm VCR is integrated. It is possible to reduce the system cost drastically thanks to the introduction of an external filter on to the chip and fc auto adjustment. 48 49 12.00±0.20 10.00±0.20 33 32 (1.25) 10.00±0.20 12.00±0.20 64 17 1 0.50 16 +0.10 s Features 5 V single power supply Reduction of the external components and adjusting parts by adopting automatic adjustment filter No need of glass delay lines For NTSC (PAL: AN2493 pin-compatible) (1.25) 0.10±0.10 0.18−0.05 0.15−0.05 1.95±0.20 +0.10 (1.00) Seating plane 0° to 10° 0.50±0.20 s Applications 8 mm VCR, 8 mm video camera QFP064-P-1010 1 2 CTL1 CL in CDL in CCL det. G1 det. Y VCC NL in YDL in VNF LNC out ADD out G2 det. Video out YCL det. V mute CTL Clamp det. 45 46 VF mute CTL 47 VF out CONP C 35 L IMC 36 To CCD ML out Y GND 42 Line in 50 SW 1 49 48 44 43 41 40 39 37 38 34 33 31 32 30 29 28 27 AGC det. OSD PS SW 4 NOR 51 GCA2 Mute Trap Clamp HPF LIM HSS C SW 6 P CONP Sub 2 R SW 12 SW 8 V mute CTL AN2492FH SW 21 SW 19 SW 0 R GCA1 Amp. Clamp s Block Diagram 52 CONP Y OSD OSD C SW 3 AGC Clamp Det. Det. A Clamp Clamp P Test 9 REC PB VOL P 53 AGC det. ATT R Main LPF SS det. 54 N SW 5 PB DOC SS Sync. SS out RF det. Line FM in LIM CORR ATT (d) RF out PB...