NTSC CCD Video Signal Delay Elements
CCD Delay Line Series
MN3814, MN3814S
NTSC CCD Video Signal Delay Elements
Overview
The MN3814 and MN3814S are 4 fSC CM...
Description
CCD Delay Line Series
MN3814, MN3814S
NTSC CCD Video Signal Delay Elements
Overview
The MN3814 and MN3814S are 4 fSC CMOS CCD signal delay elements whose wide bandwidth and low noise make them ideal for video signal processing applications. They contain such components as a shift register clock driver, 906-stage CCD analog shift register, and resampling output amplifier. They sample the input using the supplied clock signal with a frequency of 14.32 MHz, four times the NTSC color signal subcarrier frequency, and after adding in the attached filter delay, produce independent delays of 1 H (the horizontal scan period).
Pin Assignment
MN3814
VBB 1 8 VDD1
XI
2
7
VSS
VBIAS
3
6
VDD2
Features
High-precision 1 H delay for video signal CMOS process for low power consumption Low EMI levels from clock during driving Low clock leakage, which allows use of simpler filters
VO
4
5
VIN
(TOP VIEW) DIP008-P-300
Applications
1 H delays of NTSC video signals, especially for: Comb filters Signal-to-noise ratio improvement Dropout compensation MN3814S
VBB N.C. N.C. X1 VBIAS VO N.C. N.C. N.C.
1 2 3 4 5 6 7 8 9
18 17 16 15 14 13 12 11 10
N.C. N.C. VDD1 VSS VDD2 VIN N.C. N.C. N.C.
(TOP VIEW) SOP018-P-0300
1
MN3814, MN3814S
Block Diagram
CCD Delay Line Series
(14) 6 V DD2
(16) 8
Bias circuit
(5) 3
VBIAS
VDD1
VIN 5 (13)
906-stage CCD analog shift register øS ø1 ø2 øR øSH
Resampling output amplifier
(6) 4
VO
Clock driver
Substrate bias generator
Timing adjustment
...
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