M52347SP Datasheet, PDF (1/13 Pages) Mitsubishi Electric Semiconductor – 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 VP-P), composite sync (positive and negative polarities of
0.5 to 2.5 VP-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.
FEATURES
• 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
RECOMMENDED OPERATING CONDITION
Supply voltage range..............................................Vcc=4.5 to 5.5V
Rated Supply voltage............................................................Vcc=5V
MITSUBISHI ICs (Monitor)
M52347SP/FP
SYNC SIGNAL PROCESSOR
PIN CONFIGURATION (TOP VIEW)
H. STATE 1
V. STATE 2
CLAMP SW 3
GREEN IN 4
GND 5
COMP/H IN 6
COMP/H DET 7
V IN 8
V DET 9
V TIME GATE SW 10
20 CLAMP TIMING
19 Y. POL.
18 H. POL.
17 CLAMP⁺ OUT
16 VCC
15 _HD^- _OUT
14 HD⁺ OUT
13 VD⁺ OUT
12 V S/S OUT
11 V S/S IN
Outline 20P4B(SP)
20P2N-A(FP)
BLOCK DIAGRAM
CLAMP
CLAMP⁺
TIMING Y. POL. H. POL.
OUT
VCC
20
19
18
17
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
2
3
4
5
6
7
8
9
10
H. STATE V. STATE CLAMP GREEN
GND COMP/H COMP/H
V IN
V DET V TIME GATA
SW
IN
IN
DET
SW
1