MITSUBISHI ICs (Monitor)
M52347SP/FP
SYNC SIGNAL PROCESSOR
DESCRIPTION
The M52347 automatically selects three types of synchronous
signals containing separate sync (positive and negative polarities of
0.5 to 2.5 V
P-P
), composite sync (positive and negative polarities of
0.5 to 2.5 V
P-P
) and sync-on-video (sync negative polarity), and
performs waveform shaping. The IC is optimum to synchronous
signal processing for multi-scan type display monitor.
H. STATE 1
V. STATE 2
CLAMP SW 3
20 CLAMP TIMING
19 Y. POL.
18 H. POL.
PIN CONFIGURATION (TOP VIEW)
M52347SP/FP
FEATURES
GREEN IN 4
GND 5
COMP/H IN 6
COMP/H DET 7
V IN 8
V DET 9
V TIME GATE SW 10
17 CLAMP
+
OUT
16 V
CC
15 HD
-
OUT
14 HD
+
OUT
13 VD
+
OUT
12 V S/S OUT
11 V S/S IN
•
•
•
•
•
Low power consumption with supply voltage of 5V
Capable of obtaining output information on whether to input syn-
chronous signal, and on polarity
Output of clamp pulse
Equipped with V TIME GATE SW that enables selecting whether
or not VD portion pulse is output from pin
14
/
15
.
Equipped with CLAMP SW that enables switching the clamp
pulse output position.
APPLICATION
Display monitor
Outline 20P4B(SP)
20P2N-A(FP)
RECOMMENDED OPERATING CONDITION
Supply voltage range..............................................Vcc=4.5 to 5.5V
Rated Supply voltage............................................................Vcc=5V
BLOCK DIAGRAM
CLAMP
TIMING
20
Y. POL.
19
H. POL.
18
CLAMP
+
OUT
17
V
CC
16
HD
-
OUT
15
HD
+
OUT
14
VD
+
OUT
13
V S/S
OUT
12
V S/S
IN
11
CLAMP
GET
EDGE
SW
V. TIME
GATE
V. SYNC
SEP
LOGIC
LOGIC
SYNC
SEP
H
SHAPE
H
DET
V
SHAPE
V
DET
1
H. STATE
2
V. STATE
3
CLAMP
SW
4
GREEN
IN
5
GND
6
COMP/H
IN
7
COMP/H
DET
8
V IN
9
V DET
10
V TIME GATA
SW
1
MITSUBISHI [ MITSUBISHI ELECTRIC SEMICONDUCTOR ]
