M52347SP/FP
Sync Signal Processor
REJ03F0190-0200
Rev.2.00
Sep 14, 2006
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.
Features
•
•
•
•
•
Low power consumption with supply voltage of 5 V
Capable of obtaining output information on whether to input synchronous 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:
Rated supply voltage:
V
CC
= 4.5 to 5.5 V
V
CC
= 5 V
Block Diagram
CLAMP
TIMING
20
V.POL.
19
CLAMP
+
H.POL.
OUT
18
17
V
CC
16
HD
−
OUT
15
HD
+
OUT
14
VD
+
OUT
13
V S/S
OUT
12
V S/S
IN
11
CLAMP
GEN
EDGE
SW
V.TIME
GATE
V.SYNC
SEP
LOGIC
LOGIC
SYNC
SEP
1
2
3
4
5
H
SHAPE
6
H
DET
7
V
SHAPE
8
V
DET
9
10
H.STATE V.STATE CLAMP
SW
GREEN
IN
GND
COMP/H COMP/H
IN
DET
V IN
V DET V TIME GATE
SW
Rev.2.00 Sep 14, 2006 page 1 of 16
RENESAS [ RENESAS TECHNOLOGY CORP ]
