Luminance and chrominance signal processing (PAL) IC for 8 mm VCR
ICs for VCR
AN2492FH
Luminance and chrominance signal processing circuit for 8 mm video (NTSC)
Unit: mm
s Overview
The...
Description
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...
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