MN67621F Datasheet, PDF (3/11 Pages) Panasonic Semiconductor – Color Video Camera Synchronizing Signal Generator LSI

For Video Equipment
MN67621F
Pin Descriptions
Pin No.
39
Symbol
V_DD1
37
V_SS1
14
V_DD2
17
V_SS2
11
OSCI
12
OSCO
38
CLK
22
TVMD1
25
TVMD2
29
CCDS1
30
CCDS2
34
TEST1
35
TEST2
36
TEST3
15
SC1
16
SC2
28
CSYNC
1
VD
18
WHD
27
CBLK
42
HD
26
CP2
Pin Name
Power supply
Power supply
Power supply
Power supply
Crystal oscillation
input
Crystal oscillation
input
Clock input
Television system
selection input
CCD scan lines
selection input
Test input
f_SC (B-Y) output
f_SC (R-Y) output
Composite synchronizing
signal output
Vertical drive output
Wide HD output
Composite blanking
output
Horizontal drive output
Clamp pulse output
Function Description
"H" level (5 V) power supply for horizontal and vertical
synchronizing signal circuits
"L" level (0 V) power supply for horizontal and vertical
synchronizing signal circuits
"H" level (5 V) power supply for color subcarrier circuits
"L" level (0 V) power supply for color subcarrier circuits
Connect these pins to a 4f_SC crystal oscillator.
The pins have built-in feedback resistors.
If using an external clock, supply it to the OSCI pin and
leave the OSCO pin open.
Supply the reference clock for the horizontal and vertical
synchronizing signals.
NTSC
PAL SECAM
TVMD1
"H"
"L"
"L"
TVMD2
—
"H"
"L"
The pins include built-in pull-up resistors.
420H 510H 590H 670H
CCDS1
"H"
"H"
"L"
"L"
CCDS2
"H"
"L"
"H"
"L"
The pins include built-in pull-up resistors.
Test inputs Keep these pins at "L" level.
The pins include built-in pull-down resistors.
This color subcarrier signal is formed by dividing the
crystal oscillator frequency (4f_SC) by four.
Color subcarrier signal
If SC1 is the 180° signal, this signal has the following phase.
NTSC system: 90°
PAL system: 90° when LSW is at "L" level
270° when LSW is at "H" level
Composite blanking signal
Vertical drive signal
Wide HD signal
Preblanking signal
Composite blanking signal
Signal for erasing video signal
Horizontal drive signal
Clamp pulses for luminance and color difference signals
Horizontal deflection start pulses