M52393P

Manufacturer Part NumberM52393P
DescriptionEDTV2 IDENTIFICATION SIGNAL DETECTOR
ManufacturerMITSUBISHI
M52393P datasheet
 


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DESCRIPTION
The M52393 are integrated-circuits of a semiconductor, developed
especially for EDTV2 identification signal detection.
In contrast to such ICs, few products on the IC market had the
simple function of detecting identification signals. For that purpose,
many manufacturers had to combine discrete components (non-
ICs) with gate arrays. There was a great demand for ICs that
enabled cost reduction.
In order to satisfy demand, we have developed the EDTV2
identification signal processing ICs that include all necessary
capabilities for detection (synchronous signal separation, line
counter, filters, level detection, and bit judgment). The use of such
ICs reduces parts, eliminates the need for complicated adjustment,
and enables easy handling and cost reduction.
FEATURES
All necessary detection capabilities, such as a synchronous sig-
nal separation circuit, are integrated into a single microchip. The
use of the microchip can simplify application circuits, and elimi-
nate the need for adjustment. (Only two inputs are provided:
video signal input and fsc signal input.)
Our original method is used for distinguishing EDTV2 identifica-
tion signals from normal video signals.
Therefore the accuracy of identification is improved.
The detection level is adjustable.
The microchip operates on a single supply voltage of 5V.
Two types of packages are provided:
DIP with a lead pitch of 2.54mm (M52393P); and SOP with a
pitch of 1.27mm (M52393FP).
BLOCK DIAGRAM
V
VIDEO IN
3.58M TRAP
CC
16
15
CLAMP
TRAP (3.58MHz)
14dB AMP
LPF 1
BPF
(2.1M)
TRAP
(2.1M)
1
2
2.04M TRAP
COMP1
1
EDTV2 IDENTIFICATION SIGNAL DETECTOR
PIN CONFIGURATION (TOP VIEW)
2.04M TRAP
CORRELATION SW
APPLICATION
TV and videocassette recorder compatible with EDTV2.
RECOMMENDED OPERATING CONDITION
Supply voltage range........................................................4.7 to 5.3V
Rated supply voltage.....................................................................5V
SYNC SEPA
FILTER
V.SEPA FILTER
14
13
12
Sync
V Sepa
Sepa.
CLAMP 1
COMP 1
DET 3
COMP 3
CLAMP 2
COMP 2
3
4
5
CLAMP1
COMP2
CLAMP2
MITSUBISHI ICs (AV COMMON)
M52393P/FP
1
16
V
CC
COMP1
2
15
VIDEO IN
3
14
CLAMP1
3.58M TRAP
4
13
COMP2
SYNC SEPA FILTER
5
12
CLAMP2
V.SEPA FILTER
6
11
COMP3
f
IN
SC
LINE
7
10
FRAME/FIELD SW
GND
8
9
DET OUT
Outline 16P4
16P2N-A
FRAME/
FIELD SW
DET OUT
f
IN
SC
10
11
9
LED
PULSE GEN.
DRIVER
Counter
Bit judge
6
7
8
COMP3
LINE
GND
CORRELATION SW

M52393P Summary of contents