M52721 Mitsubishi, M52721 Datasheet - Page 4

• Manufacturer Part Number: M52721
• Description: WIDEBAND VIDEO PREAMPLIFIER WITH OSD MIX
• Manufacturer: Mitsubishi

V
Make sure that signal is not output in synchronization with SG7
(blanking portion).
Next, while monitoring this output, decrease the SG7 amplitude
gradually and measure the SG7 amplitude when the blanking
portion disappears.
INPUT SIGNAL
Standard
20th
stepped
SG No.
signals
video
wave
BLK,
OSD
SG1
SG2
SG3
SG5
SG6
SG7
SG8
CP
BLK input threshold voltage
+
Sine wave with amplitude 0.7V
Sine wave with amplitude 0.7V
Sine wave with amplitude 0.7V
Pulse with amplitude 0.7V
Pulse with amplitude 4.0V
(f=30kHz, pulse width and amplitude partially variable)
Pulse with amplitude 4.0V
(f=30kHz, amplitude partially variable )
Video signal with pulse width 0.7V
0V
0V
P-P
P-P
P-P
(f=30kHz, duty=50%)
and pulse width 3.0 s synchronous with the pedestal part of standard video stepped wave
and pulse width 10 s synchronous with the image part of standard video stepped wave
P-P
P-P
P-P
(100kHz, amplitude partially variable )
(f=100MHz)
(f=200MHz)
P-P
(f=30kHz, amplitude partially variable )
WIDEBAND VIDEO PREAMPLIFIER WITH OSD MIX
Signals
O
Measure the amplitude of the output.
O
The conditions are the same as in O
at 2V.
aj1
aj2
OSD adjust control characteristics 1
OSD adjust control characteristics 2
10 s
MITSUBISHI ICs (Monitor)
3.0 s
0.7V
aj1
P-P
above except that V18 is set
M52721SP
0.7V
4.0V
P-P
P-P
4.0V
P-P
4