M52393P Datasheet, PDF (1/16 Pages) Mitsubishi Electric Semiconductor – EDTV2 IDENTIFICATION SIGNAL DETECTOR

MITSUBISHI ICs (AV COMMON)
M52393P/FP
EDTV2 IDENTIFICATION SIGNAL DETECTOR
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).
PIN CONFIGURATION (TOP VIEW)
2.04M TRAP 1
COMP1 2
CLAMP1 3
COMP2 4
CLAMP2 5
COMP3 6
LINE ₇
CORRELATION SW
GND 8
16 VCC
15 VIDEO IN
14 3.58M TRAP
13 SYNC SEPA FILTER
12 V.SEPA FILTER
11 fSC IN
10 FRAME/FIELD SW
9 DET OUT
Outline 16P4
16P2N-A
APPLICATION
TV and videocassette recorder compatible with EDTV2.
RECOMMENDED OPERATING CONDITION
Supply voltage range........................................................4.7 to 5.3V
Rated supply voltage.....................................................................5V
BLOCK DIAGRAM
VCC
VIDEO IN
16
15
3.58M TRAP
14
SYNC SEPA
FILTER
13
V.SEPA FILTER
12
fSC IN
11
FRAME/
FIELD SW
10
DET OUT
9
CLAMP
TRAP (3.58MHz)
14dB AMP
Sync
Sepa.
V Sepa
PULSE GEN.
LED
DRIVER
LPF 1
CLAMP 1
COMP 1
Counter
BPF
(2.1M)
TRAP
(2.1M)
DET 3
CLAMP 2
COMP 3
COMP 2
Bit judge
1
2.04M TRAP
2
COMP1
3
CLAMP1
4
COMP2
5
CLAMP2
6
COMP3
7
LINE
CORRELATION SW
8
GND
1