Document
CXD1217M
Synchronizing Signal Generator for Video Camera
Description The CXD1217M is a synchronizing signal generator for color video cameras. Features • Compatible with the respective systems, NTSC, PALM, PAL and SECAM • Output is synchronized with the clock of 910fH or 908fH • 25Hz offset processing by PAL system • Color framing by the respective systems, NTSC, PALM and PAL • Possible external synchronization by H reset, V reset and line alternate reset pins Applications Synchronizing signal generator for color video cameras Structure Silicon gate CMOS IC Absolute Maximum Ratings (Ta = 25°C) • Supply voltage VDD VSS – 0.5 to +7.0 V • Input voltage VI VSS – 0.5 to VDD + 0.5 V • Output voltage VO VSS – 0.5 to VDD + 0.5 V • Operating temperature Topr –20 to +75 °C • Storage temperature Tstg –55 to +150 °C Recommended Operating Conditions • Supply voltage VDD 4.5 to 5.5 • Operating temperature Topr –20 to +75 28 pin SOP (Plastic)
V °C
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
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E89626A79-PS
CXD1217M
Block Diagram and Pin Configuration
4fscIN 10
1/4 PALM
INT-NTSC
4fscOUT
9
1/9 CLOCK ELIMINATION
1/101
fH 2fH 1/81 1/2 PAL fH PAL 1/625, 1/525 PALM INTNTSC
19
OSC
1/7
VDD 28
fH 1/625 1/525 PAL PALM fv/2 PAL 1/4
VSS 14
fv/8
SC RESET
PHASE COMPARISON
24 HCOMOUT
TEST 16 CLIN 26 1/4
FIELD 1 RESET
SC RESET CLOUT 25 1/454, 1/455 MODE1 21 MODE2 22 EXT 20 LALTRI 15 LINE ALTERNATE RESET HORIZONTAL RESET VERTICAL RESET DECODE 2fH fH 1/625, 1/525 1/2 2 5 7 OFLD1 OFLD OLALT OBF/COLB OBLK OSYNC
OUTPUT F.F.
COMPOSITE SIGNAL CONTROL F.F.
3 6 4
HRI 23
12 OVD 8 OHD
VRI
1
27 OFH 17 O2FH
Note) Pin 19 output is (a) a signal based on Pin 26 in INT mode at NTSC. (b) each signal is based on Pin 10 in other modes.
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CXD1217M
Pin Description Pin No. 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 Symbol VRI OFLD1 OBF/COLB OSYNC OFLD OBLK OLALT OHD 4fscOUT 4fscIN NC OVD NC VSS LALTRI TEST O2FH NC OSC EXT MODE1 MODE2 HRI HCOMOUT CLOUT CLIN OFH VDD I/O I O O O O O O O O I — O — — I I O — O I I I I O O I O — Sub carrier output Internal and external synchronizing modes switchover L: Internal synchronization H: External synchronization System selecting input 1 System selecting input 2 Horizontal reset input Phase comparator output Clock output Clock input Horizontal frequency output Power supply pin GND pin Line alternate reset input Test input 2fH output (Double the frequency of Pin 27) Vertical drive output Vertical reset signal First field output Burst flag/color blanking output Composite sync output Even and Odd output Composite blanking output Line alternate output Horizo.