M52347FP MITSUBISHI, M52347FP Datasheet

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M52347FP

Manufacturer Part Number
M52347FP
Description
Sync signal processor
Manufacturer
MITSUBISHI
Datasheet

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DESCRIPTION
The M52347 automatically selects three types of synchronous
signals containing separate sync (positive and negative polarities of
0.5 to 2.5 V
0.5 to 2.5 V
performs waveform shaping. The IC is optimum to synchronous
signal processing for multi-scan type display monitor.
FEATURES
APPLICATION
Display monitor
RECOMMENDED OPERATING CONDITION
Supply voltage range..............................................Vcc=4.5 to 5.5V
Rated Supply voltage............................................................Vcc=5V
1
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
Equipped with CLAMP SW that enables switching the clamp
pulse output position.
BLOCK DIAGRAM
P-P
H. STATE
P-P
TIMING
CLAMP
), composite sync (positive and negative polarities of
) and sync-on-video (sync negative polarity), and
20
1
LOGIC
V. STATE
Y. POL.
19
2
LOGIC
H. POL.
CLAMP
CLAMP
SW
18
3
GET
14 15
/
CLAMP
GREEN
SYNC
OUT
.
SEP
17
4
IN
+
EDGE
SW
GND
V
16
CC
5
COMP/H
SHAPE
OUT
HD
15
IN
H
6
-
PIN CONFIGURATION (TOP VIEW)
V. TIME
GATE
COMP/H
V TIME GATE SW
DET
HD
OUT
DET
14
H
7
COMP/H DET
+
CLAMP SW
COMP/H IN
GREEN IN
H. STATE
V. STATE
V DET
GND
V IN
SHAPE
VD
OUT
V IN
13
8
V
SYNC SIGNAL PROCESSOR
+
10
1
2
4
5
6
7
3
8
9
Outline 20P4B(SP)
MITSUBISHI ICs (Monitor)
20P2N-A(FP)
M52347SP/FP
V DET
V S/S
OUT
DET
12
V
9
V TIME GATA
20
16
11
19
18
17
15
14
13
12
V. SYNC
V S/S
CLAMP TIMING
Y. POL.
H. POL.
CLAMP
V
HD
HD
VD
V S/S OUT
V S/S IN
SW
SEP
11
IN
10
CC
+
-
+
OUT
OUT
OUT
+
OUT

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M52347FP Summary of contents

Page 1

... EDGE V. TIME SW GATE SYNC H H SEP SHAPE DET GREEN GND COMP/H COMP DET MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR H. STATE 1 20 CLAMP TIMING STATE Y. POL. 3 CLAMP POL GREEN IN CLAMP OUT 5 16 GND V ...

Page 2

... P 2.5V 14 50kHz P-P 50kHz 0.6V P 2.5V 14 50kHz P-P MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR Unit ˚C ˚C Output waveform Note Min. Typ. Max 4.0 0 P-P input DC 0 signal is equiv- alent to NON SYNC. DC 4.0 0 P-P input DC 0 signal is equiv- alent to NON SYNC ...

Page 3

... S 2V P-P 50kHz P 50kHz P voltage must applied. MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR Output waveform Note Min. Typ. Max. V Meas 4 Meas V Meas 4 Meas V Meas 4 Meas V Meas 4 Meas Must not oper- ...

Page 4

... P 50kHz P-P 50kHz 0.6V P 2.5V 17 50kHz P-P MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR Output waveform Note Min. Typ. Max. Input (50%) 6 Time - Meas Output (50%) 14 Input (50%) 6 Time - Meas Output (50%) 14 Input 4 (50%) Time - Meas ...

Page 5

... DC voltage must applied. 50kHz P voltage must applied. MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR Output waveform Note Min. Typ. Max. (50%) 8 Time - Meas (50%) 13 (50%) 8 Time - Meas (50%) 13 Checking output pulse for output ...

Page 6

... HD OUT - 15 COMP OUT GND CC 1 R16 + 17 GREEN IN CLAMP OUT 18 H. POL. CLAMP POL. V. STATE CLAMP 20 H. STATE TIMING MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR V10 4 0.0068 75k TP2 ...

Page 7

... Same as pin 6 Same as pin 7 MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR Description of function Logic output pin for horizontal synchro- nous signal When pin input signal is POSI, outputs 6 "H"; when NON, outputs "L"; and when NEG, outputs "H". ...

Page 8

... Same as pin 12 Same as pin 1 Same as pin 1.9V 0.4mA 0.2mA MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR Description of function V TIME GATE SW pin Can select whether to output the pulse of VD portion from pin , output pluse The threshold voltage is approx. 2.5V ...

Page 9

... MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR Pin 17 output signal Pin Pin "H" Pin "M" trailing 4 trailing edge edge 6 leading 4 trailing edge edge 6 leading edge ...

Page 10

... Fig Input signal This additional circuit (limiter) limits the amplitude to 0 the 4 big, output response . H and V of the 6 and , the bias is 2.5V and the 8 2.8V 2.5V 2.2V MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR 18k pin 6 or pin 8 100 3k . P-P Fig R=56k 25 20 R=75k 15 3.3 ...

Page 11

... Sampling Pulse from VD Portion V TIME GATE SW (Pin Whether to output the pulse of VD portion from pins can be selected. When pin portion is output. When pin is not output. V =3.5V TH =1.8V TH (that is 700 uA) and MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR R=10k 2 R=4. 100 1000 ...

Page 12

... Note that the low level of the output pulse goes up. 1k TYPICAL CHARACTERISTICS THERMAL DERATING (MAXIMUM RATING) 1400 1237.6 1200 1000 SP 827.8 800 FP 600 430.5 400 200 AMBIENT TEMPERATURE Ta (˚ 643.6 100 125 150 MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR 0.8 0.6 0.4 0 External Resistance ( ...

Page 13

... APPLICATION EXAMPLE (f =50kHz =80 Hz) V MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR ...

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